Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752098AbbFZMts (ORCPT ); Fri, 26 Jun 2015 08:49:48 -0400 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:26619 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751561AbbFZMti (ORCPT ); Fri, 26 Jun 2015 08:49:38 -0400 Date: Fri, 26 Jun 2015 20:49:28 +0800 From: Yi Zhang To: Lee Jones CC: , , , , Subject: Re: [PATCH V2 2/2] mfd: 88pm88x: initialize 88pm886/88pm880 base support Message-ID: <20150626124928.GF32687@yizhang> References: <1434098601-3498-1-git-send-email-yizhang@marvell.com> <1434098601-3498-3-git-send-email-yizhang@marvell.com> <20150625083248.GT15013@x1> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20150625083248.GT15013@x1> User-Agent: Mutt/1.5.21 (2010-09-15) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2015-06-26_04:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 kscore.is_bulkscore=0 kscore.compositescore=1 compositescore=0.9 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 rbsscore=0.9 spamscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1506180000 definitions=main-1506260189 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 78935 Lines: 2545 On Thu, Jun 25, 2015 at 09:32:48AM +0100, Lee Jones wrote: > On Fri, 12 Jun 2015, Yi Zhang wrote: > > > 88pm886 and 88pm880 are combo PMIC chip, which integrates > > regulator, onkey, rtc, gpadc, charger, fuelgauge function; > > > > this patch add the basic support for them, adding related resource, such as > > interrupt, preparing for the client-device driver > > > > Signed-off-by: Yi Zhang > > --- > > drivers/mfd/88pm880-table.c | 173 ++++++++++++ > > drivers/mfd/88pm886-table.c | 173 ++++++++++++ > > drivers/mfd/88pm88x-core.c | 584 ++++++++++++++++++++++++++++++++++++++++ > > drivers/mfd/88pm88x-i2c.c | 167 ++++++++++++ > > drivers/mfd/88pm88x-irq.c | 171 ++++++++++++ > > drivers/mfd/88pm88x.h | 51 ++++ > Hi, Lee: Thanks very much for your patience on such a long patch, it is my fault, I will modify according to your precious comments and split them in the next version, thanks very much; > I'm initially concerned that you aren't (re)using _any_ of the 88pm* > files already in the subsystem. sorry for confusing you, this patch is for the 88pm886/88pm880, a new series PMIC which is very different from the previous chips(88pm8*) in register mapping and function; after investigation, we tried to add this patch. > > > drivers/mfd/Kconfig | 12 + > > drivers/mfd/Makefile | 3 + > > include/linux/mfd/88pm880-reg.h | 98 +++++++ > > include/linux/mfd/88pm880.h | 59 ++++ > > include/linux/mfd/88pm886-reg.h | 59 ++++ > > include/linux/mfd/88pm886.h | 55 ++++ > > include/linux/mfd/88pm88x-reg.h | 118 ++++++++ > > include/linux/mfd/88pm88x.h | 202 ++++++++++++++ > > 14 files changed, 1925 insertions(+) > > Sending 2k line patches doesn't make reviewing a particularly pleasant > experience. Please divide it up into a properly separated set. If > you feel as though the set can't be split up, then you're probably > coding it wrongly. thanks, I will modify; > > > create mode 100644 drivers/mfd/88pm880-table.c > > create mode 100644 drivers/mfd/88pm886-table.c > > create mode 100644 drivers/mfd/88pm88x-core.c > > create mode 100644 drivers/mfd/88pm88x-i2c.c > > create mode 100644 drivers/mfd/88pm88x-irq.c > > create mode 100644 drivers/mfd/88pm88x.h > > create mode 100644 include/linux/mfd/88pm880-reg.h > > create mode 100644 include/linux/mfd/88pm880.h > > create mode 100644 include/linux/mfd/88pm886-reg.h > > create mode 100644 include/linux/mfd/88pm886.h > > create mode 100644 include/linux/mfd/88pm88x-reg.h > > create mode 100644 include/linux/mfd/88pm88x.h > > > > diff --git a/drivers/mfd/88pm880-table.c b/drivers/mfd/88pm880-table.c > > new file mode 100644 > > index 0000000..28ca860 > > --- /dev/null > > +++ b/drivers/mfd/88pm880-table.c > > @@ -0,0 +1,173 @@ > > +/* > > + * Marvell 88PM880 specific setting > > + * > > + * Copyright (C) 2015 Marvell International Ltd. > > + * Yi Zhang > > Tea Maker, Project Manger, CEO, Janitor? > > Or "Author: " My fault, thanks; > > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + */ > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > + > > +#include "88pm88x.h" > > + > > +#define PM880_BUCK_NAME "88pm880-buck" > > +#define PM880_LDO_NAME "88pm880-ldo" > > + > > +const struct regmap_config pm880_base_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +const struct regmap_config pm880_power_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +const struct regmap_config pm880_gpadc_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +const struct regmap_config pm880_battery_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +const struct regmap_config pm880_test_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +static const struct resource buck_resources[] = { > > + { > > + .name = PM880_BUCK_NAME, > > Tabbing. Got it; > > > + }, > > +}; > > + > > +static const struct resource ldo_resources[] = { > > + { > > + .name = PM880_LDO_NAME, > > Tabbing. Yes; > > > + }, > > +}; > > + > > +const struct mfd_cell pm880_cell_devs[] = { > > + CELL_DEV(PM880_BUCK_NAME, buck_resources, "marvell,88pm880-buck1a", 0), > > + CELL_DEV(PM880_BUCK_NAME, buck_resources, "marvell,88pm880-buck2", 1), > > + CELL_DEV(PM880_BUCK_NAME, buck_resources, "marvell,88pm880-buck3", 2), > > + CELL_DEV(PM880_BUCK_NAME, buck_resources, "marvell,88pm880-buck4", 3), > > + CELL_DEV(PM880_BUCK_NAME, buck_resources, "marvell,88pm880-buck5", 4), > > + CELL_DEV(PM880_BUCK_NAME, buck_resources, "marvell,88pm880-buck6", 5), > > + CELL_DEV(PM880_BUCK_NAME, buck_resources, "marvell,88pm880-buck7", 6), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo1", 7), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo2", 8), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo3", 9), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo4", 10), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo5", 11), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo6", 12), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo7", 13), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo8", 14), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo9", 15), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo10", 16), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo11", 17), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo12", 18), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo13", 19), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo14", 20), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo15", 21), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo16", 22), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo17", 23), > > + CELL_DEV(PM880_LDO_NAME, ldo_resources, "marvell,88pm880-ldo18", 24), > > +}; > > You don't want an MFD for each regulator. See the DT documentation > for regulators. OK, I will change > > > +struct pmic_cell_info pm880_cell_info = { > > + .cells = pm880_cell_devs, > > + .cell_nr = ARRAY_SIZE(pm880_cell_devs), > > +}; > > No need for this, please remove it. Yes, you are right, if I change to use one MFD for all of the regulators > > > +static const struct reg_default pm880_base_patch[] = { > > + {PM88X_WDOG, 0x1}, /* disable watchdog */ > > Pad it out like you did the others "0x01". OK; > > > + {PM88X_AON_CTRL2, 0x2a}, /* output 32kHZ from XO */ > > kHz Thanks very much for pointing it out; got it; > > > + {PM88X_BK_OSC_CTRL1, 0x0f}, /* OSC_FREERUN = 1, to lock FLL */ > > Don't put bit names in comments -- you should define them instead. OK > > > + {PM88X_LOWPOWER2, 0x20}, /* XO_LJ = 1, enable low jitter for 32kHZ */ > > Remove the bit name -- second part is fine. Yes, you are right; > > > + /* enable LPM for internal reference group in sleep */ > > I see you're not a fan of using capital letter to start a sentence? ..Yes, I just feel capital letter means "see me, I am important.." OK, I will change to use it to start a sentence > > > + {PM88X_LOWPOWER4, 0xc0}, > > No comment? I will add it; > > > + {PM88X_BK_OSC_CTRL3, 0xc0}, /* set the duty cycle of charger DC/DC to max */ > > +}; > > This would be easier to read if you lined it up: > > {PM88X_WDOG, 0x01}, /* disable watchdog */ > {PM88X_AON_CTRL2, 0x2a}, /* output 32kHZ from XO */ > {PM88X_BK_OSC_CTRL1, 0x0f}, /* OSC_FREERUN = 1, to lock FLL */ > {PM88X_LOWPOWER2, 0x20}, /* XO_LJ = 1, enable low jitter for 32kHZ */ > /* enable LPM for internal reference group in sleep */ > {PM88X_LOWPOWER4, 0xc0}, > {PM88X_BK_OSC_CTRL3, 0xc0}, /* set the duty cycle of charger DC/DC to max */ > > ... don't you think? > > I also think the values should be defined. If you disagree, at the > _very least_ please sharpen up the comments. I will modify them, agree with you, macro is better > > > +static const struct reg_default pm880_power_patch[] = { > > +}; > > What's the point of this? I just leave it here to get ready for the next patch, I got your point, I should add it when I really use it. thanks; > > > +static const struct reg_default pm880_gpadc_patch[] = { > > + {PM88X_GPADC_CONFIG6, 0x03}, /* enable non-stop mode */ > > +}; > > I personally prefer spaces after the first and before the second curly > bracket. Got it; > > > +static const struct reg_default pm880_battery_patch[] = { > > + {PM88X_CHGBK_CONFIG6, 0xe1}, > > +}; > > As above. Yes; > > > +static const struct reg_default pm880_test_patch[] = { > > +}; > > Why do you have an empty struct const? As for the above, I will remove it in this patch > > > +/* 88pm880 chip itself related */ > > I have no idea what this means? Sorry for confusing you, I mean the following setting tries to cover the change related to chip itself, for the board specific requirement, it should not be here; I will modify this comments, thanks for pointing this out; > > > +int pm880_apply_patch(struct pm88x_chip *chip) > > +{ > > + int ret, size; > > + > > + if (!chip || !chip->base_regmap || !chip->power_regmap || > > + !chip->gpadc_regmap || !chip->battery_regmap || > > + !chip->test_regmap) > > + return -EINVAL; > > You already checked for this in pm88x_post_init_chip(). OK, I will remove; > > > + size = ARRAY_SIZE(pm880_base_patch); > > + if (size == 0) > > + goto power; > > + ret = regmap_register_patch(chip->base_regmap, pm880_base_patch, size); > > + if (ret < 0) > > I assume any non-zero return value is bad. If so, please change all > of these too "if (ret)". Yes, you are right, I will change > > > + return ret; > > + > > +power: > > + size = ARRAY_SIZE(pm880_power_patch); > > + if (size == 0) > > + goto gpadc; > > + ret = regmap_register_patch(chip->power_regmap, pm880_power_patch, size); > > + if (ret < 0) > > + return ret; > > + > > +gpadc: > > + size = ARRAY_SIZE(pm880_gpadc_patch); > > + if (size == 0) > > + goto battery; > > + ret = regmap_register_patch(chip->gpadc_regmap, pm880_gpadc_patch, size); > > + if (ret < 0) > > + return ret; > > '\n' Yes; > > > +battery: > > + size = ARRAY_SIZE(pm880_battery_patch); > > + if (size == 0) > > + goto test; > > + ret = regmap_register_patch(chip->battery_regmap, pm880_battery_patch, size); > > + if (ret < 0) > > + return ret; > > + > > +test: > > + size = ARRAY_SIZE(pm880_test_patch); > > + if (size == 0) > > + goto out; > > + ret = regmap_register_patch(chip->test_regmap, pm880_test_patch, size); > > + if (ret < 0) > > + return ret; > > '\n' Yes; > > > +out: > > + return 0; > > +} > > +EXPORT_SYMBOL_GPL(pm880_apply_patch); > > diff --git a/drivers/mfd/88pm886-table.c b/drivers/mfd/88pm886-table.c > > new file mode 100644 > > index 0000000..897ee82 > > --- /dev/null > > +++ b/drivers/mfd/88pm886-table.c > > @@ -0,0 +1,173 @@ > > +/* > > + * Marvell 88PM886 specific setting > > + * > > + * Copyright (C) 2015 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + */ > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > + > > +#include "88pm88x.h" > > + > > +#define PM886_BUCK_NAME "88pm886-buck" > > +#define PM886_LDO_NAME "88pm886-ldo" > > + > > +const struct regmap_config pm886_base_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +const struct regmap_config pm886_power_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +const struct regmap_config pm886_gpadc_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +const struct regmap_config pm886_battery_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +const struct regmap_config pm886_test_i2c_regmap = { > > + .reg_bits = 8, > > + .val_bits = 8, > > + .max_register = 0xfe, > > +}; > > + > > +static const struct resource buck_resources[] = { > > + { > > + .name = PM886_BUCK_NAME, > > + }, > > +}; > > + > > +static const struct resource ldo_resources[] = { > > + { > > + .name = PM886_LDO_NAME, > > + }, > > +}; > > + > > +const struct mfd_cell pm886_cell_devs[] = { > > + CELL_DEV(PM886_BUCK_NAME, buck_resources, "marvell,88pm886-buck1", 0), > > + CELL_DEV(PM886_BUCK_NAME, buck_resources, "marvell,88pm886-buck2", 1), > > + CELL_DEV(PM886_BUCK_NAME, buck_resources, "marvell,88pm886-buck3", 2), > > + CELL_DEV(PM886_BUCK_NAME, buck_resources, "marvell,88pm886-buck4", 3), > > + CELL_DEV(PM886_BUCK_NAME, buck_resources, "marvell,88pm886-buck5", 4), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo1", 5), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo2", 6), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo3", 7), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo4", 8), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo5", 9), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo6", 10), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo7", 11), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo8", 12), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo9", 13), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo10", 14), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo11", 15), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo12", 16), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo13", 17), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo14", 18), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo15", 19), > > + CELL_DEV(PM886_LDO_NAME, ldo_resources, "marvell,88pm886-ldo16", 20), > > +}; > > You don't want an MFD for each regulator. See the DT documentation > for regulators. Yes; > > > +struct pmic_cell_info pm886_cell_info = { > > + .cells = pm886_cell_devs, > > + .cell_nr = ARRAY_SIZE(pm886_cell_devs), > > +}; > > No need for this, please remove it. Yes; > > > +static const struct reg_default pm886_base_patch[] = { > > + {PM88X_WDOG, 0x1}, /* disable watchdog */ > > + {PM88X_GPIO_CTRL1, 0x40}, /* gpio1: dvc , gpio0: input */ > > + {PM88X_GPIO_CTRL2, 0x00}, /* , gpio2: input */ > > + {PM88X_GPIO_CTRL3, 0x44}, /* dvc2 , dvc1 */ > > + {PM88X_GPIO_CTRL4, 0x00}, /* gpio5v_1:input, gpio5v_2: input*/ > > + {PM88X_AON_CTRL2, 0x2a}, /* output 32kHZ from XO */ > > + {PM88X_BK_OSC_CTRL1, 0x0f}, /* OSC_FREERUN = 1, to lock FLL */ > > + {PM88X_LOWPOWER2, 0x20}, /* XO_LJ = 1, enable low jitter for 32kHZ */ > > + /* enable LPM for internal reference group in sleep */ > > + {PM88X_LOWPOWER4, 0xc0}, > > + {PM88X_BK_OSC_CTRL3, 0xc0}, /* set the duty cycle of charger DC/DC to max */ > > +}; > > + > > +static const struct reg_default pm886_power_patch[] = { > > +}; > > + > > +static const struct reg_default pm886_gpadc_patch[] = { > > + {PM88X_GPADC_CONFIG6, 0x03}, /* enable non-stop mode */ > > +}; > > + > > +static const struct reg_default pm886_battery_patch[] = { > > + {PM88X_CHGBK_CONFIG6, 0xe1}, > > +}; > > + > > +static const struct reg_default pm886_test_patch[] = { > > +}; > > + > > +/* 88pm886 chip itself related */ > > +int pm886_apply_patch(struct pm88x_chip *chip) > > +{ > > + int ret, size; > > + > > + if (!chip || !chip->base_regmap || !chip->power_regmap || > > + !chip->gpadc_regmap || !chip->battery_regmap || > > + !chip->test_regmap) > > + return -EINVAL; > > You already checked for this in pm88x_post_init_chip(). Yes; > > > + size = ARRAY_SIZE(pm886_base_patch); > > + if (size == 0) > > + goto power; > > + ret = regmap_register_patch(chip->base_regmap, pm886_base_patch, size); > > + if (ret < 0) > > + return ret; > > + > > +power: > > + size = ARRAY_SIZE(pm886_power_patch); > > + if (size == 0) > > + goto gpadc; > > + ret = regmap_register_patch(chip->power_regmap, pm886_power_patch, size); > > + if (ret < 0) > > + return ret; > > + > > +gpadc: > > + size = ARRAY_SIZE(pm886_gpadc_patch); > > + if (size == 0) > > + goto battery; > > + ret = regmap_register_patch(chip->gpadc_regmap, pm886_gpadc_patch, size); > > + if (ret < 0) > > + return ret; > > +battery: > > + size = ARRAY_SIZE(pm886_battery_patch); > > + if (size == 0) > > + goto test; > > + ret = regmap_register_patch(chip->battery_regmap, pm886_battery_patch, size); > > + if (ret < 0) > > + return ret; > > + > > +test: > > + size = ARRAY_SIZE(pm886_test_patch); > > + if (size == 0) > > + goto out; > > + ret = regmap_register_patch(chip->test_regmap, pm886_test_patch, size); > > + if (ret < 0) > > + return ret; > > +out: > > + return 0; > > +} > > +EXPORT_SYMBOL_GPL(pm886_apply_patch); > > A lot of this code looks identical to the previous *-table.c file and > a bunch of it is duplicated line from line. Please amalgamate them > and find a way to reduce the amount of lines. I can think of several > ways this can be done. OK, I will modify in next patchset; > > > diff --git a/drivers/mfd/88pm88x-core.c b/drivers/mfd/88pm88x-core.c > > new file mode 100644 > > index 0000000..343e0a0 > > --- /dev/null > > +++ b/drivers/mfd/88pm88x-core.c > > @@ -0,0 +1,584 @@ > > +/* > > + * Base driver for Marvell 88PM886/88PM880 PMIC > > + * > > + * Copyright (C) 2015 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + */ > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > + > > +#include "88pm88x.h" > > + > > +#define PM88X_POWER_UP_LOG (0x17) > > +#define PM88X_POWER_DOWN_LOG1 (0xe5) > > +#define PM88X_POWER_DOWN_LOG2 (0xe6) > > +#define PM88X_SW_PDOWN (1 << 5) > > + > > +static const struct resource onkey_resources[] = { > > + CELL_IRQ_RESOURCE(PM88X_ONKEY_NAME, PM88X_IRQ_ONKEY), > > +}; > > + > > +static const struct resource rtc_resources[] = { > > + CELL_IRQ_RESOURCE(PM88X_RTC_NAME, PM88X_IRQ_RTC), > > +}; > > + > > +static const struct resource charger_resources[] = { > > + CELL_IRQ_RESOURCE("88pm88x-chg-fail", PM88X_IRQ_CHG_FAIL), > > + CELL_IRQ_RESOURCE("88pm88x-chg-done", PM88X_IRQ_CHG_DONE), > > + CELL_IRQ_RESOURCE("88pm88x-chg-good", PM88X_IRQ_CHG_GOOD), > > +}; > > + > > +static const struct resource battery_resources[] = { > > + CELL_IRQ_RESOURCE("88pm88x-bat-cc", PM88X_IRQ_CC), > > + CELL_IRQ_RESOURCE("88pm88x-bat-volt", PM88X_IRQ_VBAT), > > + CELL_IRQ_RESOURCE("88pm88x-bat-detect", PM88X_IRQ_BAT_DET), > > +}; > > + > > +static const struct resource headset_resources[] = { > > + CELL_IRQ_RESOURCE("88pm88x-headset-det", PM88X_IRQ_HS_DET), > > + CELL_IRQ_RESOURCE("88pm88x-mic-det", PM88X_IRQ_MIC_DET), > > +}; > > + > > +static const struct resource vbus_resources[] = { > > + CELL_IRQ_RESOURCE("88pm88x-vbus-det", PM88X_IRQ_VBUS), > > + CELL_IRQ_RESOURCE("88pm88x-gpadc0", PM88X_IRQ_GPADC0), > > + CELL_IRQ_RESOURCE("88pm88x-gpadc1", PM88X_IRQ_GPADC1), > > + CELL_IRQ_RESOURCE("88pm88x-gpadc2", PM88X_IRQ_GPADC2), > > + CELL_IRQ_RESOURCE("88pm88x-gpadc3", PM88X_IRQ_GPADC3), > > + CELL_IRQ_RESOURCE("88pm88x-otg-fail", PM88X_IRQ_OTG_FAIL), > > +}; > > + > > +static const struct resource leds_resources[] = { > > + CELL_IRQ_RESOURCE("88pm88x-cfd-fail", PM88X_IRQ_CFD_FAIL), > > +}; > > + > > +static const struct resource dvc_resources[] = { > > + { > > + .name = PM88X_DVC_NAME, > > + }, > > +}; > > + > > +static const struct resource rgb_resources[] = { > > + { > > + .name = PM88X_RGB_NAME, > > + }, > > +}; > > + > > +static const struct resource gpadc_resources[] = { > > + { > > + .name = PM88X_GPADC_NAME, > > + }, > > +}; > > Tabbing for all of the above. Sure, thanks; > > In fact, for one line struct entries, I would prefer: > > { .name = PM88X_GPADC_NAME }, > > > +static const struct mfd_cell common_cell_devs[] = { > > + CELL_DEV(PM88X_RTC_NAME, rtc_resources, "marvell,88pm88x-rtc", -1), > > + CELL_DEV(PM88X_ONKEY_NAME, onkey_resources, "marvell,88pm88x-onkey", -1), > > + CELL_DEV(PM88X_CHARGER_NAME, charger_resources, "marvell,88pm88x-charger", -1), > > + CELL_DEV(PM88X_BATTERY_NAME, battery_resources, "marvell,88pm88x-battery", -1), > > + CELL_DEV(PM88X_HEADSET_NAME, headset_resources, "marvell,88pm88x-headset", -1), > > + CELL_DEV(PM88X_VBUS_NAME, vbus_resources, "marvell,88pm88x-vbus", -1), > > + CELL_DEV(PM88X_CFD_NAME, leds_resources, "marvell,88pm88x-leds", PM88X_FLASH_LED), > > + CELL_DEV(PM88X_CFD_NAME, leds_resources, "marvell,88pm88x-leds", PM88X_TORCH_LED), > > + CELL_DEV(PM88X_DVC_NAME, dvc_resources, "marvell,88pm88x-dvc", -1), > > + CELL_DEV(PM88X_RGB_NAME, rgb_resources, "marvell,88pm88x-rgb0", PM88X_RGB_LED0), > > + CELL_DEV(PM88X_RGB_NAME, rgb_resources, "marvell,88pm88x-rgb1", PM88X_RGB_LED1), > > + CELL_DEV(PM88X_RGB_NAME, rgb_resources, "marvell,88pm88x-rgb2", PM88X_RGB_LED2), > > This isn't how it works. You should have one LED entry here, then let > the LED driver take care of all this stuff. OK, I will modify it; > > > + CELL_DEV(PM88X_GPADC_NAME, gpadc_resources, "marvell,88pm88x-gpadc", -1), > > +}; > > > > +const struct of_device_id pm88x_of_match[] = { > > + { .compatible = "marvell,88pm886", .data = (void *)PM886 }, > > + { .compatible = "marvell,88pm880", .data = (void *)PM880 }, > > + {}, > > +}; > > + > > +struct pm88x_chip *pm88x_init_chip(struct i2c_client *client) > > Why is this in a seperate file to the one it's called from? I > suggest you move it into the *-i2c.c file. OK, I'll do it; yes, it can be there; > > > +{ > > + struct pm88x_chip *chip; > > + > > + chip = devm_kzalloc(&client->dev, sizeof(struct pm88x_chip), GFP_KERNEL); > > Calling this 'chip' is confusing, as it has different connotations > depending on the subsystem. > > ddata (for device data) or priv for (private) is more common. So thank you; I prefer ddata; > > > + if (!chip) > > + return ERR_PTR(-ENOMEM); > > + > > + chip->client = client; > > + chip->irq = client->irq; > > + chip->dev = &client->dev; > > Why are you storing 'client' AND 'dev'? Do you use 'client' directly? > If not, ditch it. If you do, then just store 'client' and extract > 'client->dev' when you require it. OK, I am in the second case, I will modify it; > > > + chip->ldo_page_addr = client->addr + 1; > > + chip->power_page_addr = client->addr + 1; > > + chip->gpadc_page_addr = client->addr + 2; > > + chip->battery_page_addr = client->addr + 3; > > + chip->buck_page_addr = client->addr + 4; > > + chip->test_page_addr = client->addr + 7; > > I have no idea what's going on here, but it's almost certainly not > correct. Instead of separating these out per device have a base > address and create DEFINES for each of them. it is because this PMIC has several i2c address, each has different function, the offset vesus the client->addr is fixed, the client->addr is 0x30 from device tree, then the gpadc_page_addr is 0x32, that is why I use client->addr + 2; you mean the DEFINES are better? > > > + dev_set_drvdata(chip->dev, chip); > > + i2c_set_clientdata(chip->client, chip); > > Why do you have both of these? I think i2c_set_clientdata() is enough for my case, thanks; > > > + device_init_wakeup(&client->dev, 1); > > + > > + return chip; > > You're wearing a belt and 2 pairs of braces here. You just stored > 'chip' into the device's private data area, why are you returning it > too? my fault, I will change > > > +} > > + > > +int pm88x_parse_dt(struct device_node *np, struct pm88x_chip *chip) > > +{ > > + if (!chip) > > + return -EINVAL; > > + > > + chip->irq_mode = > > + !of_property_read_bool(np, "marvell,88pm88x-irq-write-clear"); > > A new function for just one line? Just move it into probe() I planned to add this function in case more properties are needed, OK, I will move to probe() > > > + return 0; > > +} > > + > > + > > Superfluous '\n'. I will remove; > > > +static void parse_powerup_down_log(struct pm88x_chip *chip) > > +{ > > + int powerup, powerdown1, powerdown2, bit; > > + int powerup_bits, powerdown1_bits, powerdown2_bits; > > + static const char * const powerup_name[] = { > > + "ONKEY_WAKEUP ", > > + "CHG_WAKEUP ", > > + "EXTON_WAKEUP ", > > + "SMPL_WAKEUP ", > > + "ALARM_WAKEUP ", > > + "FAULT_WAKEUP ", > > + "BAT_WAKEUP ", > > + "WLCHG_WAKEUP ", > > + }; > > + static const char * const powerdown1_name[] = { > > + "OVER_TEMP ", > > + "UV_VANA5 ", > > + "SW_PDOWN ", > > + "FL_ALARM ", > > + "WD ", > > + "LONG_ONKEY", > > + "OV_VSYS ", > > + "RTC_RESET " > > + }; > > + static const char * const powerdown2_name[] = { > > + "HYB_DONE ", > > + "UV_VBAT ", > > + "HW_RESET2 ", > > + "PGOOD_PDOWN", > > + "LONKEY_RTC ", > > + "HW_RESET1 ", > > + }; > > + > > + regmap_read(chip->base_regmap, PM88X_POWER_UP_LOG, &powerup); > > + regmap_read(chip->base_regmap, PM88X_POWER_DOWN_LOG1, &powerdown1); > > + regmap_read(chip->base_regmap, PM88X_POWER_DOWN_LOG2, &powerdown2); > > + > > + /* > > + * mask reserved bits > > + * > > + * note: HYB_DONE and HW_RESET1 are kept, > > + * but should not be considered as power down events > > + */ > > + switch (chip->type) { > > + case PM886: > > + powerup &= 0x7f; > > + powerdown2 &= 0x1f; > > + powerup_bits = 7; > > + powerdown1_bits = 8; > > + powerdown2_bits = 5; > > + break; > > + case PM880: > > + powerdown2 &= 0x3f; > > + powerup_bits = 8; > > + powerdown1_bits = 8; > > + powerdown2_bits = 6; > > + break; > > + default: > > + return; > > + } > > + > > + /* keep globals for external usage */ > > + chip->powerup = powerup; > > + chip->powerdown1 = powerdown1; > > + chip->powerdown2 = powerdown2; > > + > > + /* power up log */ > > + dev_info(chip->dev, "powerup log 0x%x: 0x%x\n", > > + PM88X_POWER_UP_LOG, powerup); > > + dev_info(chip->dev, " ----------------------------\n"); > > + dev_info(chip->dev, "| name(power up) | status |\n"); > > + dev_info(chip->dev, "|-----------------|----------|\n"); > > + for (bit = 0; bit < powerup_bits; bit++) > > + dev_info(chip->dev, "| %s | %x |\n", > > + powerup_name[bit], (powerup >> bit) & 1); > > + dev_info(chip->dev, " ----------------------------\n"); > > + > > + /* power down log1 */ > > + dev_info(chip->dev, "PowerDW Log1 0x%x: 0x%x\n", > > + PM88X_POWER_DOWN_LOG1, powerdown1); > > + dev_info(chip->dev, " -------------------------------\n"); > > + dev_info(chip->dev, "| name(power down1) | status |\n"); > > + dev_info(chip->dev, "|--------------------|----------|\n"); > > + for (bit = 0; bit < powerdown1_bits; bit++) > > + dev_info(chip->dev, "| %s | %x |\n", > > + powerdown1_name[bit], (powerdown1 >> bit) & 1); > > + dev_info(chip->dev, " -------------------------------\n"); > > + > > + /* power down log2 */ > > + dev_info(chip->dev, "PowerDW Log2 0x%x: 0x%x\n", > > + PM88X_POWER_DOWN_LOG2, powerdown2); > > + dev_info(chip->dev, " -------------------------------\n"); > > + dev_info(chip->dev, "| name(power down2) | status |\n"); > > + dev_info(chip->dev, "|--------------------|----------|\n"); > > + for (bit = 0; bit < powerdown2_bits; bit++) > > + dev_info(chip->dev, "| %s | %x |\n", > > + powerdown2_name[bit], (powerdown2 >> bit) & 1); > > + dev_info(chip->dev, " -------------------------------\n"); > > + > > + /* write to clear power down log */ > > + regmap_write(chip->base_regmap, PM88X_POWER_DOWN_LOG1, 0xff); > > + regmap_write(chip->base_regmap, PM88X_POWER_DOWN_LOG2, 0xff); > > +} > > + > > +static const char *chip_stepping_to_string(unsigned int id) > > +{ > > + switch (id) { > > + case 0xa1: > > + return "88pm886 A1"; > > + case 0xb1: > > + return "88pm880 A1"; > > + default: > > + return "Unknown"; > > + } > > +} > > + > > +int pm88x_post_init_chip(struct pm88x_chip *chip) > > +{ > > + int ret; > > + unsigned int val; > > + > > + if (!chip || !chip->base_regmap || !chip->power_regmap || > > + !chip->gpadc_regmap || !chip->battery_regmap) > > + return -EINVAL; > > + > > + /* save chip stepping */ > > + ret = regmap_read(chip->base_regmap, PM88X_ID_REG, &val); > > + if (ret < 0) { > > + dev_err(chip->dev, "Failed to read chip ID: %d\n", ret); > > + return ret; > > + } > > + chip->chip_id = val; > > + > > + dev_info(chip->dev, "PM88X chip ID = 0x%x(%s)\n", val, > > + chip_stepping_to_string(chip->chip_id)); > > + > > + /* read before alarm wake up bit before initialize interrupt */ > > + ret = regmap_read(chip->base_regmap, PM88X_RTC_ALARM_CTRL1, &val); > > + if (ret < 0) { > > + dev_err(chip->dev, "Failed to read RTC register: %d\n", ret); > > + return ret; > > + } > > + chip->rtc_wakeup = !!(val & PM88X_ALARM_WAKEUP); > > + > > + parse_powerup_down_log(chip); > > + > > + return 0; > > +} > > + > > +int pm88x_init_pages(struct pm88x_chip *chip) > > +{ > > + struct i2c_client *client = chip->client; > > + const struct regmap_config *base_regmap_config; > > + const struct regmap_config *power_regmap_config; > > + const struct regmap_config *gpadc_regmap_config; > > + const struct regmap_config *battery_regmap_config; > > + const struct regmap_config *test_regmap_config; > > + int ret = 0; > > + > > + if (!chip || !chip->power_page_addr || > > + !chip->gpadc_page_addr || !chip->battery_page_addr) > > + return -ENODEV; > > + > > + chip->type = pm88x_of_get_type(&client->dev); > > + switch (chip->type) { > > + case PM886: > > + base_regmap_config = &pm886_base_i2c_regmap; > > + power_regmap_config = &pm886_power_i2c_regmap; > > + gpadc_regmap_config = &pm886_gpadc_i2c_regmap; > > + battery_regmap_config = &pm886_battery_i2c_regmap; > > + test_regmap_config = &pm886_test_i2c_regmap; > > + break; > > + case PM880: > > + base_regmap_config = &pm880_base_i2c_regmap; > > + power_regmap_config = &pm880_power_i2c_regmap; > > + gpadc_regmap_config = &pm880_gpadc_i2c_regmap; > > + battery_regmap_config = &pm880_battery_i2c_regmap; > > + test_regmap_config = &pm880_test_i2c_regmap; > > + break; > > + default: > > + return -ENODEV; > > You could probably do with an error message here. I got your point, good suggestion, thank you; > > > + } > > + > > + /* base page */ > > + chip->base_regmap = devm_regmap_init_i2c(client, base_regmap_config); > > + if (IS_ERR(chip->base_regmap)) { > > + dev_err(chip->dev, "Failed to init base_regmap: %d\n", ret); > > + ret = PTR_ERR(chip->base_regmap); > > + goto out; > > + } > > + > > + /* power page */ > > + chip->power_page = i2c_new_dummy(client->adapter, chip->power_page_addr); > > + if (!chip->power_page) { > > + dev_err(chip->dev, "Failed to new power_page: %d\n", ret); > > + ret = -ENODEV; > > + goto out; > > + } > > + chip->power_regmap = devm_regmap_init_i2c(chip->power_page, > > + power_regmap_config); > > + if (IS_ERR(chip->power_regmap)) { > > + dev_err(chip->dev, "Failed to init power_regmap: %d\n", ret); > > + ret = PTR_ERR(chip->power_regmap); > > + goto out; > > + } > > + > > + /* gpadc page */ > > + chip->gpadc_page = i2c_new_dummy(client->adapter, chip->gpadc_page_addr); > > + if (!chip->gpadc_page) { > > + dev_err(chip->dev, "Failed to new gpadc_page: %d\n", ret); > > + ret = -ENODEV; > > + goto out; > > + } > > + chip->gpadc_regmap = devm_regmap_init_i2c(chip->gpadc_page, > > + gpadc_regmap_config); > > + if (IS_ERR(chip->gpadc_regmap)) { > > + dev_err(chip->dev, "Failed to init gpadc_regmap: %d\n", ret); > > + ret = PTR_ERR(chip->gpadc_regmap); > > + goto out; > > + } > > + > > + /* battery page */ > > + chip->battery_page = i2c_new_dummy(client->adapter, chip->battery_page_addr); > > + if (!chip->battery_page) { > > + dev_err(chip->dev, "Failed to new gpadc_page: %d\n", ret); > > + ret = -ENODEV; > > + goto out; > > + } > > + chip->battery_regmap = devm_regmap_init_i2c(chip->battery_page, > > + battery_regmap_config); > > + if (IS_ERR(chip->battery_regmap)) { > > + dev_err(chip->dev, "Failed to init battery_regmap: %d\n", ret); > > + ret = PTR_ERR(chip->battery_regmap); > > + goto out; > > + } > > + > > + /* test page */ > > + chip->test_page = i2c_new_dummy(client->adapter, chip->test_page_addr); > > + if (!chip->test_page) { > > + dev_err(chip->dev, "Failed to new test_page: %d\n", ret); > > + ret = -ENODEV; > > + goto out; > > + } > > + chip->test_regmap = devm_regmap_init_i2c(chip->test_page, > > + test_regmap_config); > > + if (IS_ERR(chip->test_regmap)) { > > + dev_err(chip->dev, "Failed to init test_regmap: %d\n", ret); > > + ret = PTR_ERR(chip->test_regmap); > > + goto out; > > + } > > There's a lot of duplicated code here. You can save quite a few lines > if you thought about it I'm sure. I will try to fix it in next patchset, thanks for your reminder; I am ashamed about this > > > + chip->type = pm88x_of_get_type(&client->dev); > > + switch (chip->type) { > > + case PM886: > > + /* ldo page */ > > + chip->ldo_page = chip->power_page; > > + chip->ldo_regmap = chip->power_regmap; > > + /* buck page */ > > + chip->buck_regmap = chip->power_regmap; > > + break; > > + case PM880: > > + /* ldo page */ > > + chip->ldo_page = chip->power_page; > > + chip->ldo_regmap = chip->power_regmap; > > + > > + /* buck page */ > > + chip->buck_page = i2c_new_dummy(client->adapter, > > + chip->buck_page_addr); > > + if (!chip->buck_page) { > > + dev_err(chip->dev, "Failed to new buck_page: %d\n", ret); > > + ret = -ENODEV; > > + goto out; > > + } > > + chip->buck_regmap = devm_regmap_init_i2c(chip->buck_page, > > + power_regmap_config); > > + if (IS_ERR(chip->buck_regmap)) { > > + dev_err(chip->dev, "Failed to init buck_regmap: %d\n", ret); > > + ret = PTR_ERR(chip->buck_regmap); > > + goto out; > > + } > > + > > + break; > > + default: > > + ret = -EINVAL; > > Firstly, this probably won't happen, as the first switch() succeeded. > Secondly, you are returning a different error value, why? Thirdly, > you probably want an error message here. for the first question, you are right, I will re-org this function to make it clearer; for the second question, my fault, I should write -ENODEV here; for third, definitly an error message is right, thank you; > > > + break; > > + } > > +out: > > + return ret; > > +} > > + > > +void pm800_exit_pages(struct pm88x_chip *chip) > > +{ > > + if (!chip) > > + return; > > + > > + if (chip->ldo_page) > > + i2c_unregister_device(chip->ldo_page); > > + if (chip->gpadc_page) > > + i2c_unregister_device(chip->gpadc_page); > > + if (chip->test_page) > > + i2c_unregister_device(chip->test_page); > > '\n' Yes; > > > + /* no need to unregister ldo_page */ > > + switch (chip->type) { > > + case PM886: > > + break; > > + case PM880: > > + if (chip->buck_page) > > + i2c_unregister_device(chip->buck_page); > > + break; > > + default: > > + break; > > + } > > No need for this big switch(). Just do: Good, it's much cleaner than mine, thank you; > > if (chip->buck_page) > i2c_unregister_device(chip->buck_page); > > > +} > > + > > +int pm88x_init_subdev(struct pm88x_chip *chip) > > +{ > > + int ret; > > '\n' OK; > > This will raise a Checkpatch error. Did you run this set though > checkpatch.pl? I am sorry to say it's my fault, I promise it will not happen again. > > > + if (!chip) > > + return -EINVAL; > > I'm pretty sure you can't get here if !chip. Yes, I will change > > > + ret = mfd_add_devices(chip->dev, 0, common_cell_devs, > > What does 0 mean? I should use -1 here, though it _seems_ works.. > > > + ARRAY_SIZE(common_cell_devs), NULL, 0, > > + regmap_irq_get_domain(chip->irq_data)); > > + if (ret < 0) > > if (ret) OK > > > + return ret; > > + > > + switch (chip->type) { > > + case PM886: > > + ret = mfd_add_devices(chip->dev, 0, pm886_cell_info.cells, > > + pm886_cell_info.cell_nr, NULL, 0, > > + regmap_irq_get_domain(chip->irq_data)); > > + break; > > + case PM880: > > + ret = mfd_add_devices(chip->dev, 0, pm880_cell_info.cells, > > + pm880_cell_info.cell_nr, NULL, 0, > > + regmap_irq_get_domain(chip->irq_data)); > > switch() on {pm880_cell_info|pm886_cell_info.cells}.cells etc and just > call mfd_add_devices() once. Yes, you are right > > > + break; > > + default: > > + break; > > + } > > + return ret; > > +} > > + > > +static int (*apply_to_chip)(struct pm88x_chip *chip); > > +/* PMIC chip itself related */ > > +int pm88x_apply_patch(struct pm88x_chip *chip) > > +{ > > + if (!chip || !chip->client) > > + return -EINVAL; > > + > > + chip->type = pm88x_of_get_type(&chip->client->dev); > > + switch (chip->type) { > > + case PM886: > > + apply_to_chip = pm886_apply_patch; > > + break; > > + case PM880: > > + apply_to_chip = pm880_apply_patch; > > + break; > > + default: > > + break; > > + } > > + if (apply_to_chip) > > + apply_to_chip(chip); > > + return 0; > > +} > > What on earth is going on here? > > Why bother assigning the *fn()? because 88pm886 and 88pm880 have different pages, the latter has one more page, so I added two function here by assigning the *fn(), after more thoughts, I think this is not needed, I will modify to use a better method, thanks for your criticism > > > +int pm88x_stepping_fixup(struct pm88x_chip *chip) > > +{ > > + if (!chip || !chip->client) > > + return -EINVAL; > > I don't think this can happen. I will remove; > > > + chip->type = pm88x_of_get_type(&chip->client->dev); > > + switch (chip->type) { > > + case PM886: > > + case PM880: > > + default: > > + break; > > + } > > + > > + return 0; > > +} > > This function appears to do nothing. Why is it here? I planed to implement in the following patchset, now I know I should merge it into the next one; > > > +int pm88x_apply_board_fixup(struct pm88x_chip *chip, struct device_node *np) > > +{ > > + /* add board design specific setting, parsed via device tree */ > > + return 0; > > +} > > What's this? Another empty function. same with above; > > > +long pm88x_of_get_type(struct device *dev) > > +{ > > + const struct of_device_id *id = of_match_device(pm88x_of_match, dev); > > + > > + if (id) > > + return (long)id->data; > > + else > > + return 0; > > +} > > Just do this once, in probe and store the value in driver data. No > need for a function to do this. got it; > > > +void pm88x_dev_exit(struct pm88x_chip *chip) > > +{ > > + mfd_remove_devices(chip->dev); > > + pm88x_irq_exit(chip); > > +} > > + > > +void pm88x_power_off(void) > > +{ > > + pr_info("powers off the system."); > > + /* TODO: implement later */ > > Why can't you implement this now? OK, I will add in the next version > > > + for (;;) > > + cpu_relax(); > > What's the point of this? I just would like to busy loop at the end of the power_off callback; > > > +} > > + > > +int pm88x_reboot_notifier_callback(struct notifier_block *this, > > + unsigned long code, void *unused) > > +{ > > + struct pm88x_chip *chip = > > + container_of(this, struct pm88x_chip, reboot_notifier); > > + > > + switch (code) { > > + case SYS_HALT: > > + case SYS_POWER_OFF: > > + dev_info(chip->dev, "system is down.\n"); > > + break; > > + case SYS_RESTART: > > + default: > > + dev_info(chip->dev, "system will reboot.\n"); > > + break; > > + } > > + > > + return 0; > > +} > > This function is pointless. my intention is to record what has happened to the system, I will double consider of it; thanks; > > > diff --git a/drivers/mfd/88pm88x-i2c.c b/drivers/mfd/88pm88x-i2c.c > > new file mode 100644 > > index 0000000..36842ed > > --- /dev/null > > +++ b/drivers/mfd/88pm88x-i2c.c > > @@ -0,0 +1,167 @@ > > +/* > > + * 88pm88x-i2c.c -- 88pm88x i2c bus interface > > + * > > + * Copyright (C) 2015 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + */ > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > + > > +static int pm88x_i2c_probe(struct i2c_client *client, > > + const struct i2c_device_id *id) > > +{ > > + struct pm88x_chip *chip; > > + struct device_node *node = client->dev.of_node; > > + int ret = 0; > > + > > + chip = pm88x_init_chip(client); > > This function doesn't actually do any chip initialisation. actually, yes, it only does some software work.. I will find a better name in next version > > ... and the code should be moved into here. > > > + if (IS_ERR(chip)) { > > + ret = PTR_ERR(chip); > > + dev_err(chip->dev, "initialize 88pm88x chip fails!\n"); > > "Failed to initialise chip" OK, I will scan and modify all of the error log. thanks very much; > > > + goto err; > > Just return. OK; > > > + } > > + > > + ret = pm88x_parse_dt(node, chip); > > + if (ret < 0) { > > + dev_err(chip->dev, "parse dt fails!\n"); > > "Failed to parse DT" got it; > > > + goto err; > > Just return. > > > + } > > + > > + ret = pm88x_init_pages(chip); > > + if (ret) { > > + dev_err(chip->dev, "initialize 88pm88x pages fails!\n"); > > Etc ... got it; > > > + goto err; > > Just return. got it; > > > + } > > + > > + ret = pm88x_post_init_chip(chip); > > + if (ret) { > > + dev_err(chip->dev, "post initialize 88pm88x fails!\n"); > > + goto err; > > Just return. got it; > > > + } > > + > > + ret = pm88x_irq_init(chip); > > + if (ret) { > > + dev_err(chip->dev, "initialize 88pm88x interrupt fails!\n"); > > + goto err_init_irq; > > + } > > + > > + ret = pm88x_init_subdev(chip); > > + if (ret) { > > + dev_err(chip->dev, "initialize 88pm88x sub-device fails\n"); > > + goto err_init_subdev; > > + } > > + > > + /* patch for PMIC chip itself */ > > + ret = pm88x_apply_patch(chip); > > + if (ret) { > > + dev_err(chip->dev, "apply 88pm88x register patch fails\n"); > > + goto err_apply_patch; > > + } > > + > > + /* fixup according PMIC stepping */ > > This comment doesn't make any sense. I will change, my intention is add chip stepping specific setting > > > + ret = pm88x_stepping_fixup(chip); > > + if (ret) { > > + dev_err(chip->dev, "fixup according to chip stepping\n"); > > + goto err_apply_patch; > > + } > > + > > + /* patch for board configuration */ > > + ret = pm88x_apply_board_fixup(chip, node); > > + if (ret) { > > + dev_err(chip->dev, "apply 88pm88x register for board fails\n"); > > + goto err_apply_patch; > > + } > > + > > + pm_power_off = pm88x_power_off; > > + > > + chip->reboot_notifier.notifier_call = pm88x_reboot_notifier_callback; > > + register_reboot_notifier(&(chip->reboot_notifier)); > > + > > + return 0; > > + > > +err_apply_patch: > > + mfd_remove_devices(chip->dev); > > +err_init_subdev: > > + regmap_del_irq_chip(chip->irq, chip->irq_data); > > +err_init_irq: > > + pm800_exit_pages(chip); > > +err: > > Remove this label. Yes, you are right; > > > + return ret; > > +} > > + > > +static int pm88x_i2c_remove(struct i2c_client *i2c) > > +{ > > + struct pm88x_chip *chip = dev_get_drvdata(&i2c->dev); > > + pm88x_dev_exit(chip); > > + return 0; > > +} > > Checkpatch will warn you about this function. Sorry for my fault > > > +static const struct i2c_device_id pm88x_i2c_id[] = { > > + { "88pm886", PM886 }, > > + { "88pm880", PM880 }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(i2c, pm88x_i2c_id); > > + > > +static int pm88x_i2c_suspend(struct device *dev) > > +{ > > + return 0; > > +} > > + > > +static int pm88x_i2c_resume(struct device *dev) > > +{ > > + return 0; > > +} > > Why even supply them? I planned to implement in the next patch, now I understand I should remove it. thanks; > > > +static SIMPLE_DEV_PM_OPS(pm88x_pm_ops, pm88x_i2c_suspend, pm88x_i2c_resume); > > + > > +static struct i2c_driver pm88x_i2c_driver = { > > + .driver = { > > + .name = "88pm88x", > > + .owner = THIS_MODULE, > > Remove this line. got your point > > > + .pm = &pm88x_pm_ops, > > + .of_match_table = of_match_ptr(pm88x_of_match), > > + }, > > + .probe = pm88x_i2c_probe, > > + .remove = pm88x_i2c_remove, > > + .id_table = pm88x_i2c_id, > > +}; > > + > > +static int __init pm88x_i2c_init(void) > > +{ > > + int ret; > > + > > + ret = i2c_add_driver(&pm88x_i2c_driver); > > + if (ret != 0) { > > + pr_err("88pm88x I2C registration failed %d\n", ret); > > + return ret; > > + } > > + > > + return 0; > > +} > > +subsys_initcall(pm88x_i2c_init); > > + > > +static void __exit pm88x_i2c_exit(void) > > +{ > > + i2c_del_driver(&pm88x_i2c_driver); > > +} > > +module_exit(pm88x_i2c_exit); > > I think you want to remove all of this and replace with > module_i2c_driver(). Yes, I should use module_i2c_driver(); > > > +MODULE_DESCRIPTION("88pm88x I2C bus interface"); > > +MODULE_AUTHOR("Yi Zhang"); > > Missing a space. Yes > > > +MODULE_LICENSE("GPL v2"); > > diff --git a/drivers/mfd/88pm88x-irq.c b/drivers/mfd/88pm88x-irq.c > > new file mode 100644 > > index 0000000..0126df0 > > --- /dev/null > > +++ b/drivers/mfd/88pm88x-irq.c > > @@ -0,0 +1,171 @@ > > +/* > > + * 88pm886 interrupt support > > + * > > + * Copyright (C) 2015 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + */ > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > + > > +/* interrupt status registers */ > > +#define PM88X_INT_STATUS1 (0x05) > > + > > +#define PM88X_INT_ENA_1 (0x0a) > > +#define PM88X_ONKEY_INT_ENA1 (1 << 0) > > +#define PM88X_EXTON_INT_ENA1 (1 << 1) > > +#define PM88X_CHG_INT_ENA1 (1 << 2) > > +#define PM88X_BAT_INT_ENA1 (1 << 3) > > +#define PM88X_RTC_INT_ENA1 (1 << 4) > > +#define PM88X_CLASSD_INT_ENA1 (1 << 5) > > +#define PM88X_XO_INT_ENA1 (1 << 6) > > +#define PM88X_GPIO_INT_ENA1 (1 << 7) > > + > > +#define PM88X_INT_ENA_2 (0x0b) > > +#define PM88X_VBAT_INT_ENA2 (1 << 0) > > +#define PM88X_RSVED1_INT_ENA2 (1 << 1) > > +#define PM88X_VBUS_INT_ENA2 (1 << 2) > > +#define PM88X_ITEMP_INT_ENA2 (1 << 3) > > +#define PM88X_BUCK_PGOOD_INT_ENA2 (1 << 4) > > +#define PM88X_LDO_PGOOD_INT_ENA2 (1 << 5) > > +#define PM88X_RSVED6_INT_ENA2 (1 << 6) > > +#define PM88X_RSVED7_INT_ENA2 (1 << 7) > > + > > +#define PM88X_INT_ENA_3 (0x0c) > > +#define PM88X_GPADC0_INT_ENA3 (1 << 0) > > +#define PM88X_GPADC1_INT_ENA3 (1 << 1) > > +#define PM88X_GPADC2_INT_ENA3 (1 << 2) > > +#define PM88X_GPADC3_INT_ENA3 (1 << 3) > > +#define PM88X_MIC_INT_ENA3 (1 << 4) > > +#define PM88X_HS_INT_ENA3 (1 << 5) > > +#define PM88X_GND_INT_ENA3 (1 << 6) > > +#define PM88X_RSVED7_INT_ENA3 (1 << 7) > > + > > +#define PM88X_INT_ENA_4 (0x0d) > > +#define PM88X_CHG_FAIL_INT_ENA4 (1 << 0) > > +#define PM88X_CHG_DONE_INT_ENA4 (1 << 1) > > +#define PM88X_RSVED2_INT_ENA4 (1 << 2) > > +#define PM88X_OTG_FAIL_INT_ENA4 (1 << 3) > > +#define PM88X_RSVED4_INT_ENA4 (1 << 4) > > +#define PM88X_CHG_ILIM_INT_ENA4 (1 << 5) > > +#define PM88X_CC_INT_ENA4 (1 << 6) > > +#define PM88X_RSVED7_INT_ENA4 (1 << 7) > > + > > +#define PM88X_MISC_CONFIG2 (0x15) > > +#define PM88X_INV_INT (1 << 0) > > +#define PM88X_INT_CLEAR (1 << 1) > > +#define PM88X_INT_RC (0 << 1) > > +#define PM88X_INT_WC (1 << 1) > > +#define PM88X_INT_MASK_MODE (1 << 2) > > Replace all "1 <<" with BIT() > > > +static const struct regmap_irq pm88x_irqs[] = { > > + /* INT0 */ > > + [PM88X_IRQ_ONKEY] = {.reg_offset = 0, .mask = PM88X_ONKEY_INT_ENA1,}, > > + [PM88X_IRQ_EXTON] = {.reg_offset = 0, .mask = PM88X_EXTON_INT_ENA1,}, > > + [PM88X_IRQ_CHG_GOOD] = {.reg_offset = 0, .mask = PM88X_CHG_INT_ENA1,}, > > + [PM88X_IRQ_BAT_DET] = {.reg_offset = 0, .mask = PM88X_BAT_INT_ENA1,}, > > + [PM88X_IRQ_RTC] = {.reg_offset = 0, .mask = PM88X_RTC_INT_ENA1,}, > > + [PM88X_IRQ_CLASSD] = { .reg_offset = 0, .mask = PM88X_CLASSD_INT_ENA1,}, > > + [PM88X_IRQ_XO] = {.reg_offset = 0, .mask = PM88X_XO_INT_ENA1,}, > > + [PM88X_IRQ_GPIO] = {.reg_offset = 0, .mask = PM88X_GPIO_INT_ENA1,}, > > + > > + /* INT1 */ > > + [PM88X_IRQ_VBAT] = {.reg_offset = 1, .mask = PM88X_VBAT_INT_ENA2,}, > > + [PM88X_IRQ_VBUS] = {.reg_offset = 1, .mask = PM88X_VBUS_INT_ENA2,}, > > + [PM88X_IRQ_ITEMP] = {.reg_offset = 1, .mask = PM88X_ITEMP_INT_ENA2,}, > > + [PM88X_IRQ_BUCK_PGOOD] = { > > + .reg_offset = 1, > > + .mask = PM88X_BUCK_PGOOD_INT_ENA2, > > + }, > > + [PM88X_IRQ_LDO_PGOOD] = { > > + .reg_offset = 1, > > + .mask = PM88X_LDO_PGOOD_INT_ENA2, > > + }, > > + /* INT2 */ > > + [PM88X_IRQ_GPADC0] = {.reg_offset = 2, .mask = PM88X_GPADC0_INT_ENA3,}, > > + [PM88X_IRQ_GPADC1] = {.reg_offset = 2, .mask = PM88X_GPADC1_INT_ENA3,}, > > + [PM88X_IRQ_GPADC2] = {.reg_offset = 2, .mask = PM88X_GPADC2_INT_ENA3,}, > > + [PM88X_IRQ_GPADC3] = {.reg_offset = 2, .mask = PM88X_GPADC3_INT_ENA3,}, > > + [PM88X_IRQ_MIC_DET] = {.reg_offset = 2, .mask = PM88X_MIC_INT_ENA3,}, > > + [PM88X_IRQ_HS_DET] = {.reg_offset = 2, .mask = PM88X_HS_INT_ENA3,}, > > + [PM88X_IRQ_GND_DET] = {.reg_offset = 2, .mask = PM88X_GND_INT_ENA3,}, > > This is not how we lay out structures (your code below is correct). got your point. > > > + /* INT3 */ > > + [PM88X_IRQ_CHG_FAIL] = { > > + .reg_offset = 3, > > + .mask = PM88X_CHG_FAIL_INT_ENA4, > > + }, > > + [PM88X_IRQ_CHG_DONE] = { > > + .reg_offset = 3, > > + .mask = PM88X_CHG_DONE_INT_ENA4, > > + }, > > + [PM88X_IRQ_OTG_FAIL] = { > > + .reg_offset = 3, > > + .mask = PM88X_OTG_FAIL_INT_ENA4, > > + }, > > + [PM88X_IRQ_CHG_ILIM] = { > > + .reg_offset = 3, > > + .mask = PM88X_CHG_ILIM_INT_ENA4, > > + }, > > + [PM88X_IRQ_CC] = {.reg_offset = 3, .mask = PM88X_CC_INT_ENA4,}, > > +}; > > + > > +struct regmap_irq_chip pm88x_irq_chip = { > > + .name = "88pm88x", > > + .irqs = pm88x_irqs, > > + .num_irqs = ARRAY_SIZE(pm88x_irqs), > > + > > No need for the '\n'. thanks; > > > + .num_regs = 4, > > + .status_base = PM88X_INT_STATUS1, > > + .mask_base = PM88X_INT_ENA_1, > > + .ack_base = PM88X_INT_STATUS1, > > + .mask_invert = 1, > > +}; > > + > > +int pm88x_irq_init(struct pm88x_chip *chip) > > +{ > > + int mask, data, ret; > > + struct regmap *map; > > Not sure this variable is even needed, but if you want to keep it, > please rename to regmap. fine, I will use regmap > > > + if (!chip || !chip->base_regmap || !chip->irq) { > > + pr_err("cannot initialize interrupt!\n"); > > + return -EINVAL; > > + } > > + map = chip->base_regmap; > > + > > + /* > > + * irq_mode defines the way of clearing interrupt. > > + * it's read-clear by default. > > + */ > > + mask = PM88X_INV_INT | PM88X_INT_CLEAR | PM88X_INT_MASK_MODE; > > + data = (chip->irq_mode) ? PM88X_INT_WC : PM88X_INT_RC; > > + ret = regmap_update_bits(map, PM88X_MISC_CONFIG2, mask, data); > > + if (ret < 0) { > > + dev_err(chip->dev, "cannot set interrupt mode!\n"); > > + return ret; > > + } > > + > > + ret = regmap_add_irq_chip(map, chip->irq, IRQF_ONESHOT, -1, > > + &pm88x_irq_chip, &chip->irq_data); > > + return ret; > > +} > > + > > +int pm88x_irq_exit(struct pm88x_chip *chip) > > +{ > > + regmap_del_irq_chip(chip->irq, chip->irq_data); > > + return 0; > > +} > > diff --git a/drivers/mfd/88pm88x.h b/drivers/mfd/88pm88x.h > > new file mode 100644 > > index 0000000..a85a486 > > --- /dev/null > > +++ b/drivers/mfd/88pm88x.h > > @@ -0,0 +1,51 @@ > > +#ifndef _MFD_88PM88X_H > > +#define _MFD_88PM88X_H > > + > > +#include > > +#include > > +#include > > +#include > > + > > +struct pmic_cell_info { > > + const struct mfd_cell *cells; > > + int cell_nr; > > +}; > > No need for this, please move it. Yes; > > > +#define CELL_IRQ_RESOURCE(_name, _irq) { \ > > + .name = _name, \ > > + .start = _irq, .end = _irq, \ > > + .flags = IORESOURCE_IRQ, \ > > + } > > This already exists, DEFINE_RES*. Thanks for reminder, yes; > > > +#define CELL_DEV(_name, _r, _compatible, _id) { \ > > + .name = _name, \ > > + .of_compatible = _compatible, \ > > + .num_resources = ARRAY_SIZE(_r), \ > > + .resources = _r, \ > > + .id = _id, \ > > + } > > This is not required. > > If you feel the need for an MFD Cell macro, you probably have too many > MFD cells and you have done something wrong.. Yes, I should use one MFD to cover regulators and one MFD to cover LEDs, I will remember this lesson; thanks; > > > +/* 88pm886 */ > > +extern const struct regmap_config pm886_base_i2c_regmap; > > +extern const struct regmap_config pm886_power_i2c_regmap; > > +extern const struct regmap_config pm886_gpadc_i2c_regmap; > > +extern const struct regmap_config pm886_battery_i2c_regmap; > > +extern const struct regmap_config pm886_test_i2c_regmap; > > + > > +extern const struct mfd_cell pm886_cell_devs[]; > > +extern struct pmic_cell_info pm886_cell_info; > > + > > +int pm886_apply_patch(struct pm88x_chip *chip); > > + > > +/* 88pm880 */ > > +extern const struct regmap_config pm880_base_i2c_regmap; > > +extern const struct regmap_config pm880_power_i2c_regmap; > > +extern const struct regmap_config pm880_gpadc_i2c_regmap; > > +extern const struct regmap_config pm880_battery_i2c_regmap; > > +extern const struct regmap_config pm880_test_i2c_regmap; > > + > > +extern const struct mfd_cell pm880_cell_devs[]; > > +extern struct pmic_cell_info pm880_cell_info; > > + > > +int pm880_apply_patch(struct pm88x_chip *chip); > > Place all of your code in the correct files and all these horrible > global externs should vanish. I will think carefully, thanks; > > > +#endif > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index d5ad04d..bdebca9 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -390,6 +390,18 @@ config MFD_KEMPLD > > This driver can also be built as a module. If so, the module > > will be called kempld-core. > > > > +config MFD_88PM88X > > + tristate "Marvell 88PM886/880 PMIC" > > + depends on I2C=y > > + select REGMAP_I2C > > + select MFD_CORE > > + help > > + This supports for Marvell 88PM88X Series Power Management IC: > > + 88pm886 and 88pm880; > > + This includes the I2C driver, the interrupt resource distribution > > + and the core APIs, for individual sub-device as voltage regulators, > > + RTC, charger, fuelgauge, etc, select under the corresponding menus. > > + > > config MFD_88PM800 > > tristate "Marvell 88PM800" > > depends on I2C=y > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > > index 0e5cfeb..365d1fa 100644 > > --- a/drivers/mfd/Makefile > > +++ b/drivers/mfd/Makefile > > @@ -6,6 +6,9 @@ > > obj-$(CONFIG_MFD_88PM860X) += 88pm860x.o > > obj-$(CONFIG_MFD_88PM800) += 88pm800.o 88pm80x.o > > obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o > > +88pm88x-objs := 88pm88x-core.o 88pm88x-i2c.o 88pm88x-irq.o 88pm886-table.o 88pm880-table.o > > +obj-$(CONFIG_MFD_88PM88X) += 88pm88x.o > > + > > obj-$(CONFIG_MFD_SM501) += sm501.o > > obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o > > obj-$(CONFIG_MFD_BCM590XX) += bcm590xx.o > > diff --git a/include/linux/mfd/88pm880-reg.h b/include/linux/mfd/88pm880-reg.h > > new file mode 100644 > > index 0000000..fdf2315 > > --- /dev/null > > +++ b/include/linux/mfd/88pm880-reg.h > > You don't need a seperate header file for register values. Just put > them in include/linux/mfd/88pm880.h. OK, got it; > > > @@ -0,0 +1,98 @@ > > +/* > > + * Marvell 88PM880 registers > > + * > > + * Copyright (C) 2014 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + */ > > + > > +#ifndef __LINUX_MFD_88PM880_REG_H > > +#define __LINUX_MFD_88PM880_REG_H > > + > > +#define PM880_BUCK1_VOUT (0x28) > > + > > +#define PM880_BUCK1A_VOUT (0x28) /* voltage 0 */ > > +#define PM880_BUCK1A_1_VOUT (0x29) > > +#define PM880_BUCK1A_2_VOUT (0x2a) > > +#define PM880_BUCK1A_3_VOUT (0x2b) > > +#define PM880_BUCK1A_4_VOUT (0x2c) > > +#define PM880_BUCK1A_5_VOUT (0x2d) > > +#define PM880_BUCK1A_6_VOUT (0x2e) > > +#define PM880_BUCK1A_7_VOUT (0x2f) > > +#define PM880_BUCK1A_8_VOUT (0x30) > > +#define PM880_BUCK1A_9_VOUT (0x31) > > +#define PM880_BUCK1A_10_VOUT (0x32) > > +#define PM880_BUCK1A_11_VOUT (0x33) > > +#define PM880_BUCK1A_12_VOUT (0x34) > > +#define PM880_BUCK1A_13_VOUT (0x35) > > +#define PM880_BUCK1A_14_VOUT (0x36) > > +#define PM880_BUCK1A_15_VOUT (0x37) > > + > > +#define PM880_BUCK1B_VOUT (0x40) > > +#define PM880_BUCK1B_1_VOUT (0x41) > > +#define PM880_BUCK1B_2_VOUT (0x42) > > +#define PM880_BUCK1B_3_VOUT (0x43) > > +#define PM880_BUCK1B_4_VOUT (0x44) > > +#define PM880_BUCK1B_5_VOUT (0x45) > > +#define PM880_BUCK1B_6_VOUT (0x46) > > +#define PM880_BUCK1B_7_VOUT (0x47) > > +#define PM880_BUCK1B_8_VOUT (0x48) > > +#define PM880_BUCK1B_9_VOUT (0x49) > > +#define PM880_BUCK1B_10_VOUT (0x4a) > > +#define PM880_BUCK1B_11_VOUT (0x4b) > > +#define PM880_BUCK1B_12_VOUT (0x4c) > > +#define PM880_BUCK1B_13_VOUT (0x4d) > > +#define PM880_BUCK1B_14_VOUT (0x4e) > > +#define PM880_BUCK1B_15_VOUT (0x4f) > > + > > +/* buck7 has dvc function */ > > +#define PM880_BUCK7_VOUT (0xb8) /* voltage 0 */ > > +#define PM880_BUCK7_1_VOUT (0xb9) > > +#define PM880_BUCK7_2_VOUT (0xba) > > +#define PM880_BUCK7_3_VOUT (0xbb) > > + > > +/* > > + * buck sleep mode control registers: > > + * 00-disable, > > + * 01/10-sleep voltage, > > + * 11-active voltage > > + */ > > +#define PM880_BUCK1A_SLP_CTRL (0x27) > > +#define PM880_BUCK1B_SLP_CTRL (0x3c) > > +#define PM880_BUCK2_SLP_CTRL (0x54) > > +#define PM880_BUCK3_SLP_CTRL (0x6c) > > +/* TODO: there are 7 controls bit for buck4~7 */ > > +#define PM880_BUCK4_SLP_CTRL (0x84) > > +#define PM880_BUCK5_SLP_CTRL (0x94) > > +#define PM880_BUCK6_SLP_CTRL (0xa4) > > +#define PM880_BUCK7_SLP_CTRL (0xb4) > > + > > +/* > > + * ldo sleep mode control registers: > > + * 00-disable, > > + * 01/10-sleep voltage, > > + * 11-active voltage > > + */ > > +#define PM880_LDO1_SLP_CTRL (0x21) > > +#define PM880_LDO2_SLP_CTRL (0x27) > > +#define PM880_LDO3_SLP_CTRL (0x2d) > > +#define PM880_LDO4_SLP_CTRL (0x33) > > +#define PM880_LDO5_SLP_CTRL (0x39) > > +#define PM880_LDO6_SLP_CTRL (0x3f) > > +#define PM880_LDO7_SLP_CTRL (0x45) > > +#define PM880_LDO8_SLP_CTRL (0x4b) > > +#define PM880_LDO9_SLP_CTRL (0x51) > > +#define PM880_LDO10_SLP_CTRL (0x57) > > +#define PM880_LDO11_SLP_CTRL (0x5d) > > +#define PM880_LDO12_SLP_CTRL (0x63) > > +#define PM880_LDO13_SLP_CTRL (0x69) > > +#define PM880_LDO14_SLP_CTRL (0x6f) > > +#define PM880_LDO15_SLP_CTRL (0x75) > > +#define PM880_LDO16_SLP_CTRL (0x7b) > > +#define PM880_LDO17_SLP_CTRL (0x81) > > +#define PM880_LDO18_SLP_CTRL (0x87) > > Remove the brackets around all of the above. got it; > > > +#endif /*__LINUX_MFD_88PM880_REG_H */ > > diff --git a/include/linux/mfd/88pm880.h b/include/linux/mfd/88pm880.h > > new file mode 100644 > > index 0000000..94b9e063 > > --- /dev/null > > +++ b/include/linux/mfd/88pm880.h > > @@ -0,0 +1,59 @@ > > +/* > > + * Marvell 88PM880 Interface > > + * > > + * Copyright (C) 2015 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + * > > + * 88pm880 specific configuration: at present it's regulators and dvc part > > + */ > > + > > +#ifndef __LINUX_MFD_88PM880_H > > +#define __LINUX_MFD_88PM880_H > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > Why are these required? My fault, I should remove them; > > > +#include "88pm880-reg.h" > > > > > +enum { > > + PM880_ID_BUCK1A = 0, > > + PM880_ID_BUCK2, > > + PM880_ID_BUCK3, > > + PM880_ID_BUCK4, > > + PM880_ID_BUCK5, > > + PM880_ID_BUCK6, > > + PM880_ID_BUCK7, > > + > > + PM880_ID_BUCK_MAX = 7, > > +}; > > + > > +enum { > > + PM880_ID_LDO1 = 0, > > + PM880_ID_LDO2, > > + PM880_ID_LDO3, > > + PM880_ID_LDO4, > > + PM880_ID_LDO5, > > + PM880_ID_LDO6, > > + PM880_ID_LDO7, > > + PM880_ID_LDO8, > > + PM880_ID_LDO9, > > + PM880_ID_LDO10, > > + PM880_ID_LDO11, > > + PM880_ID_LDO12, > > + PM880_ID_LDO13, > > + PM880_ID_LDO14 = 13, > > + PM880_ID_LDO15, > > + PM880_ID_LDO16 = 15, > > + > > + PM880_ID_LDO17 = 16, > > + PM880_ID_LDO18 = 17, > > + > > + PM880_ID_LDO_MAX = 18, > > +}; > > +#endif /* __LINUX_MFD_88PM880_H */ > > diff --git a/include/linux/mfd/88pm886-reg.h b/include/linux/mfd/88pm886-reg.h > > new file mode 100644 > > index 0000000..38a7ecd > > --- /dev/null > > +++ b/include/linux/mfd/88pm886-reg.h > > @@ -0,0 +1,59 @@ > > +/* > > + * Marvell 88PM886 registers > > + * > > + * Copyright (C) 2014 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + */ > > + > > +#ifndef __LINUX_MFD_88PM886_REG_H > > +#define __LINUX_MFD_88PM886_REG_H > > + > > +#define PM886_BUCK1_VOUT (0xa5) > > +#define PM886_BUCK1_1_VOUT (0xa6) > > +#define PM886_BUCK1_2_VOUT (0xa7) > > +#define PM886_BUCK1_3_VOUT (0xa8) > > +#define PM886_BUCK1_4_VOUT (0x9a) > > +#define PM886_BUCK1_5_VOUT (0x9b) > > +#define PM886_BUCK1_6_VOUT (0x9c) > > +#define PM886_BUCK1_7_VOUT (0x9d) > > + > > +/* > > + * buck sleep mode control registers: > > + * 00-disable, > > + * 01/10-sleep voltage, > > + * 11-active voltage > > + */ > > +#define PM886_BUCK1_SLP_CTRL (0xa2) > > +#define PM886_BUCK2_SLP_CTRL (0xb0) > > +#define PM886_BUCK3_SLP_CTRL (0xbe) > > +#define PM886_BUCK4_SLP_CTRL (0xcc) > > +#define PM886_BUCK5_SLP_CTRL (0xda) > > + > > +/* > > + * ldo sleep mode control registers: > > + * 00-disable, > > + * 01/10-sleep voltage, > > + * 11-active voltage > > + */ > > +#define PM886_LDO1_SLP_CTRL (0x21) > > +#define PM886_LDO2_SLP_CTRL (0x27) > > +#define PM886_LDO3_SLP_CTRL (0x2d) > > +#define PM886_LDO4_SLP_CTRL (0x33) > > +#define PM886_LDO5_SLP_CTRL (0x39) > > +#define PM886_LDO6_SLP_CTRL (0x3f) > > +#define PM886_LDO7_SLP_CTRL (0x45) > > +#define PM886_LDO8_SLP_CTRL (0x4b) > > +#define PM886_LDO9_SLP_CTRL (0x51) > > +#define PM886_LDO10_SLP_CTRL (0x57) > > +#define PM886_LDO11_SLP_CTRL (0x5d) > > +#define PM886_LDO12_SLP_CTRL (0x63) > > +#define PM886_LDO13_SLP_CTRL (0x69) > > +#define PM886_LDO14_SLP_CTRL (0x6f) > > +#define PM886_LDO15_SLP_CTRL (0x75) > > +#define PM886_LDO16_SLP_CTRL (0x7b) > > + > > +#endif > > diff --git a/include/linux/mfd/88pm886.h b/include/linux/mfd/88pm886.h > > new file mode 100644 > > index 0000000..9390406 > > --- /dev/null > > +++ b/include/linux/mfd/88pm886.h > > @@ -0,0 +1,55 @@ > > +/* > > + * Marvell 88PM886 Interface > > + * > > + * Copyright (C) 2015 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + * > > + * 88pm886 specific configuration: at present it's regulators and dvc part > > + */ > > + > > +#ifndef __LINUX_MFD_88PM886_H > > +#define __LINUX_MFD_88PM886_H > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include "88pm886-reg.h" > > + > > +enum { > > + PM886_ID_BUCK1 = 0, > > + PM886_ID_BUCK2, > > + PM886_ID_BUCK3, > > + PM886_ID_BUCK4, > > + PM886_ID_BUCK5, > > + > > + PM886_ID_BUCK_MAX = 5, > > +}; > > + > > +enum { > > + PM886_ID_LDO1 = 0, > > + PM886_ID_LDO2, > > + PM886_ID_LDO3, > > + PM886_ID_LDO4, > > + PM886_ID_LDO5, > > + PM886_ID_LDO6, > > + PM886_ID_LDO7, > > + PM886_ID_LDO8, > > + PM886_ID_LDO9, > > + PM886_ID_LDO10, > > + PM886_ID_LDO11, > > + PM886_ID_LDO12, > > + PM886_ID_LDO13, > > + PM886_ID_LDO14, > > + PM886_ID_LDO15, > > + PM886_ID_LDO16 = 15, > > + > > + PM886_ID_LDO_MAX = 16, > > +}; > > + > > +#endif /* __LINUX_MFD_88PM886_H */ > > diff --git a/include/linux/mfd/88pm88x-reg.h b/include/linux/mfd/88pm88x-reg.h > > new file mode 100644 > > index 0000000..d767b31 > > --- /dev/null > > +++ b/include/linux/mfd/88pm88x-reg.h > > @@ -0,0 +1,118 @@ > > +/* > > + * Marvell 88PM88X registers > > + * > > + * Copyright (C) 2014 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + */ > > + > > +#ifndef __LINUX_MFD_88PM88X_REG_H > > +#define __LINUX_MFD_88PM88X_REG_H > > +/* > > + * This file is just used for the common registers, > > + * which are shared by sub-clients > > + */ > > + > > +/*--base page:--------------------------------------------------------------*/ > > All of the commenting above is superfluous. > > > +#define PM88X_ID_REG (0x0) > > + > > +#define PM88X_STATUS1 (0x1) > > +#define PM88X_CHG_DET (1 << 2) > > +#define PM88X_BAT_DET (1 << 3) > > + > > +#define PM88X_MISC_CONFIG1 (0x14) > > +#define PM88X_LONKEY_RST (1 << 3) > > + > > +#define PM88X_WDOG (0x1d) > > + > > +#define PM88X_LOWPOWER2 (0x21) > > +#define PM88X_LOWPOWER4 (0x23) > > + > > +/* clk control register */ > > +#define PM88X_CLK_CTRL1 (0x25) > > + > > +/* gpio */ > > +#define PM88X_GPIO_CTRL1 (0x30) > > +#define PM88X_GPIO0_VAL_MSK (0x1 << 0) > > +#define PM88X_GPIO0_MODE_MSK (0x7 << 1) > > +#define PM88X_GPIO1_VAL_MSK (0x1 << 4) > > +#define PM88X_GPIO1_MODE_MSK (0x7 << 5) > > +#define PM88X_GPIO1_SET_DVC (0x2 << 5) > > + > > +#define PM88X_GPIO_CTRL2 (0x31) > > +#define PM88X_GPIO2_VAL_MSK (0x1 << 0) > > +#define PM88X_GPIO2_MODE_MSK (0x7 << 1) > > + > > +#define PM88X_GPIO_CTRL3 (0x32) > > + > > +#define PM88X_GPIO_CTRL4 (0x33) > > +#define PM88X_GPIO5V_1_VAL_MSK (0x1 << 0) > > +#define PM88X_GPIO5V_1_MODE_MSK (0x7 << 1) > > +#define PM88X_GPIO5V_2_VAL_MSK (0x1 << 4) > > +#define PM88X_GPIO5V_2_MODE_MSK (0x7 << 5) > > + > > +#define PM88X_BK_OSC_CTRL1 (0x50) > > +#define PM88X_BK_OSC_CTRL3 (0x52) > > + > > +#define PM88X_RTC_ALARM_CTRL1 (0xd0) > > +#define PM88X_ALARM_WAKEUP (1 << 4) > > +#define PM88X_USE_XO (1 << 7) > > + > > +#define PM88X_AON_CTRL2 (0xe2) > > +#define PM88X_AON_CTRL3 (0xe3) > > +#define PM88X_AON_CTRL4 (0xe4) > > +#define PM88X_AON_CTRL7 (0xe7) > > + > > +/* 0xea, 0xeb, 0xec, 0xed are reserved by RTC */ > > +#define PM88X_RTC_SPARE5 (0xee) > > +#define PM88X_RTC_SPARE6 (0xef) > > +/*-------------------------------------------------------------------------*/ > > + > > +/*--power page:------------------------------------------------------------*/ > > + > > +/*-------------------------------------------------------------------------*/ > > + > > +/*--gpadc page:------------------------------------------------------------*/ > > This type of commenting is messy and unwanted. > > > +#define PM88X_GPADC_CONFIG1 (0x1) > > + > > +#define PM88X_GPADC_CONFIG2 (0x2) > > +#define PM88X_GPADC0_MEAS_EN (1 << 2) > > +#define PM88X_GPADC1_MEAS_EN (1 << 3) > > +#define PM88X_GPADC2_MEAS_EN (1 << 4) > > +#define PM88X_GPADC3_MEAS_EN (1 << 5) > > + > > +#define PM88X_GPADC_CONFIG3 (0x3) > > + > > +#define PM88X_GPADC_CONFIG6 (0x6) > > +#define PM88X_GPADC_CONFIG8 (0x8) > > + > > +#define PM88X_GPADC0_LOW_TH (0x20) > > +#define PM88X_GPADC1_LOW_TH (0x21) > > +#define PM88X_GPADC2_LOW_TH (0x22) > > +#define PM88X_GPADC3_LOW_TH (0x23) > > + > > +#define PM88X_GPADC0_UPP_TH (0x30) > > +#define PM88X_GPADC1_UPP_TH (0x31) > > +#define PM88X_GPADC2_UPP_TH (0x32) > > +#define PM88X_GPADC3_UPP_TH (0x33) > > + > > +#define PM88X_VBUS_MEAS1 (0x4A) > > +#define PM88X_GPADC0_MEAS1 (0x54) > > +#define PM88X_GPADC1_MEAS1 (0x56) > > +#define PM88X_GPADC2_MEAS1 (0x58) > > +#define PM88X_GPADC3_MEAS1 (0x5A) > > + > > + > > +/*--charger page:------------------------------------------------------------*/ > > +#define PM88X_CHG_CONFIG1 (0x28) > > +#define PM88X_CHGBK_CONFIG6 (0x50) > > +/*-------------------------------------------------------------------------*/ > > + > > +/*--test page:-------------------------------------------------------------*/ > > + > > +/*-------------------------------------------------------------------------*/ > > +#endif > > diff --git a/include/linux/mfd/88pm88x.h b/include/linux/mfd/88pm88x.h > > new file mode 100644 > > index 0000000..efa2fe6 > > --- /dev/null > > +++ b/include/linux/mfd/88pm88x.h > > @@ -0,0 +1,202 @@ > > +/* > > + * Marvell 88PM88X PMIC Common Interface > > + * > > + * Copyright (C) 2014 Marvell International Ltd. > > + * Yi Zhang > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 as > > + * published by the Free Software Foundation. > > + * > > + * > > + * This file configures the common part of the 88pm88x series PMIC > > + */ > > + > > +#ifndef __LINUX_MFD_88PM88X_H > > +#define __LINUX_MFD_88PM88X_H > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include "88pm88x-reg.h" > > +#include "88pm886-reg.h" > > Why are all of these required? > > > +#define PM88X_RTC_NAME "88pm88x-rtc" > > +#define PM88X_ONKEY_NAME "88pm88x-onkey" > > +#define PM88X_CHARGER_NAME "88pm88x-charger" > > +#define PM88X_BATTERY_NAME "88pm88x-battery" > > +#define PM88X_HEADSET_NAME "88pm88x-headset" > > +#define PM88X_VBUS_NAME "88pm88x-vbus" > > +#define PM88X_CFD_NAME "88pm88x-leds" > > +#define PM88X_RGB_NAME "88pm88x-rgb" > > +#define PM88X_GPADC_NAME "88pm88x-gpadc" > > +#define PM88X_DVC_NAME "88pm88x-dvc" > > I would prefer that you just used the name directly. > > > +enum pm88x_type { > > + PM886 = 1, > > + PM880 = 2, > > +}; > > + > > +enum pm88x_pages { > > + PM88X_BASE_PAGE = 0, > > + PM88X_LDO_PAGE, > > + PM88X_GPADC_PAGE, > > + PM88X_BATTERY_PAGE, > > + PM88X_BUCK_PAGE = 4, > > This is 4 anyway. > > > + PM88X_TEST_PAGE = 7, > > +}; > > + > > +enum pm88x_gpadc { > > + PM88X_NO_GPADC = -1, > > + PM88X_GPADC0 = 0, > > + PM88X_GPADC1, > > + PM88X_GPADC2, > > + PM88X_GPADC3, > > +}; > > + > > +/* interrupt number */ > > +enum pm88x_irq_number { > > + PM88X_IRQ_ONKEY, /* EN1b0 *//* 0 */ > > At least put a space between the comments. Yes, you are right, a space between the comments is more readable > > > + PM88X_IRQ_EXTON, /* EN1b1 */ > > + PM88X_IRQ_CHG_GOOD, /* EN1b2 */ > > + PM88X_IRQ_BAT_DET, /* EN1b3 */ > > + PM88X_IRQ_RTC, /* EN1b4 */ > > + PM88X_IRQ_CLASSD, /* EN1b5 *//* 5 */ > > + PM88X_IRQ_XO, /* EN1b6 */ > > + PM88X_IRQ_GPIO, /* EN1b7 */ > > + > > + PM88X_IRQ_VBAT, /* EN2b0 *//* 8 */ > > + /* EN2b1 */ > > + PM88X_IRQ_VBUS, /* EN2b2 */ > > + PM88X_IRQ_ITEMP, /* EN2b3 *//* 10 */ > > + PM88X_IRQ_BUCK_PGOOD, /* EN2b4 */ > > + PM88X_IRQ_LDO_PGOOD, /* EN2b5 */ > > + > > + PM88X_IRQ_GPADC0, /* EN3b0 */ > > + PM88X_IRQ_GPADC1, /* EN3b1 */ > > + PM88X_IRQ_GPADC2, /* EN3b2 *//* 15 */ > > + PM88X_IRQ_GPADC3, /* EN3b3 */ > > + PM88X_IRQ_MIC_DET, /* EN3b4 */ > > + PM88X_IRQ_HS_DET, /* EN3b5 */ > > + PM88X_IRQ_GND_DET, /* EN3b6 */ > > + > > + PM88X_IRQ_CHG_FAIL, /* EN4b0 *//* 20 */ > > + PM88X_IRQ_CHG_DONE, /* EN4b1 */ > > + /* EN4b2 */ > > + PM88X_IRQ_CFD_FAIL, /* EN4b3 */ > > + PM88X_IRQ_OTG_FAIL, /* EN4b4 */ > > + PM88X_IRQ_CHG_ILIM, /* EN4b5 *//* 25 */ > > + /* EN4b6 */ > > + PM88X_IRQ_CC, /* EN4b7 *//* 27 */ > > + > > + PM88X_MAX_IRQ, /* 28 */ > > +}; > > + > > +/* 3 rgb led indicators */ > > +enum { > > + PM88X_RGB_LED0, > > + PM88X_RGB_LED1, > > + PM88X_RGB_LED2, > > +}; > > + > > +/* camera flash/torch */ > > +enum { > > + PM88X_NO_LED = -1, > > + PM88X_FLASH_LED = 0, > > + PM88X_TORCH_LED, > > +}; > > + > > +struct pm88x_dvc_ops { > > + void (*level_to_reg)(u8 level); > > +}; > > This appears to be unused. again, I think I should move it into next patch > > > +struct pm88x_buck1_dvc_desc { > > + u8 current_reg; > > + int max_level; > > + int uV_step1; > > + int uV_step2; > > + int min_uV; > > + int mid_uV; > > + int max_uV; > > + int mid_reg_val; > > +}; > > > > +struct pm88x_dvc { > > + struct device *dev; > > + struct pm88x_chip *chip; > > + struct pm88x_dvc_ops ops; > > + struct pm88x_buck1_dvc_desc desc; > > +}; > > + > > +struct pm88x_chip { > > + struct i2c_client *client; > > + struct device *dev; > > + > > + struct i2c_client *ldo_page; /* chip client for ldo page */ > > + struct i2c_client *power_page; /* chip client for power page */ > > + struct i2c_client *gpadc_page; /* chip client for gpadc page */ > > + struct i2c_client *battery_page;/* chip client for battery page */ > > + struct i2c_client *buck_page; /* chip client for buck page */ > > + struct i2c_client *test_page; /* chip client for test page */ > > + > > + struct regmap *base_regmap; > > + struct regmap *ldo_regmap; > > + struct regmap *power_regmap; > > + struct regmap *gpadc_regmap; > > + struct regmap *battery_regmap; > > + struct regmap *buck_regmap; > > + struct regmap *test_regmap; > > + struct regmap *codec_regmap; > > + > > + unsigned short ldo_page_addr; /* ldo page I2C address */ > > + unsigned short power_page_addr; /* power page I2C address */ > > + unsigned short gpadc_page_addr; /* gpadc page I2C address */ > > + unsigned short battery_page_addr;/* battery page I2C address */ > > + unsigned short buck_page_addr; /* buck page I2C address */ > > + unsigned short test_page_addr; /* test page I2C address */ > > + > > + unsigned int chip_id; > > + long type; /* specific chip */ > > + int irq; > > + > > + int irq_mode; /* write/read clear */ > > + struct regmap_irq_chip_data *irq_data; > > + > > + bool rtc_wakeup; /* is it powered up by expired alarm? */ > > + u8 powerdown1; /* save power down reason */ > > + u8 powerdown2; > > + u8 powerup; /* the reason of power on */ > > + > > + struct notifier_block reboot_notifier; > > + struct pm88x_dvc *dvc; > > +}; > > This is an awful lot of junk to be held in a device data structure. > Try to remove as much as you can. thanks, I will think carefully > > > +extern struct regmap_irq_chip pm88x_irq_chip; > > +extern const struct of_device_id pm88x_of_match[]; > > + > > +struct pm88x_chip *pm88x_init_chip(struct i2c_client *client); > > +int pm88x_parse_dt(struct device_node *np, struct pm88x_chip *chip); > > + > > +int pm88x_init_pages(struct pm88x_chip *chip); > > +int pm88x_post_init_chip(struct pm88x_chip *chip); > > +void pm800_exit_pages(struct pm88x_chip *chip); > > + > > +int pm88x_init_subdev(struct pm88x_chip *chip); > > +long pm88x_of_get_type(struct device *dev); > > +void pm88x_dev_exit(struct pm88x_chip *chip); > > + > > +int pm88x_irq_init(struct pm88x_chip *chip); > > +int pm88x_irq_exit(struct pm88x_chip *chip); > > +int pm88x_apply_patch(struct pm88x_chip *chip); > > +int pm88x_stepping_fixup(struct pm88x_chip *chip); > > +int pm88x_apply_board_fixup(struct pm88x_chip *chip, struct device_node *np); > > + > > +struct pm88x_chip *pm88x_get_chip(void); > > +void pm88x_set_chip(struct pm88x_chip *chip); > > +void pm88x_power_off(void); > > +int pm88x_reboot_notifier_callback(struct notifier_block *nb, > > + unsigned long code, void *unused); > > All of these should probably be moved into a single file, unless you > have a good reason to spread them out? thanks; I will modify it; > > > +#endif /* __LINUX_MFD_88PM88X_H */ > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/