Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752502AbcDSDZt (ORCPT ); Mon, 18 Apr 2016 23:25:49 -0400 Received: from mail-io0-f182.google.com ([209.85.223.182]:35095 "EHLO mail-io0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752379AbcDSDZq convert rfc822-to-8bit (ORCPT ); Mon, 18 Apr 2016 23:25:46 -0400 MIME-Version: 1.0 In-Reply-To: <570D982C.6090307@hisilicon.com> References: <20160411104106.GG8094@x1> <570D982C.6090307@hisilicon.com> Date: Tue, 19 Apr 2016 11:25:45 +0800 Message-ID: Subject: Re: Re: [PATCH v8 3/5] mfd: hi655x: Add MFD driver for hi655x From: Guodong Xu To: Mark Brown , Lee Jones Cc: Liam Girdwood , "linux-kernel@vger.kernel.org" , Wang Fei , XinWei Kong , Haojian Zhuang , Zhuangluan Su , Chen Feng , Dan Zhao Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 11154 Lines: 316 On 13 April 2016 at 08:51, Chen Feng wrote: > > > > -------- Forwarded Message -------- > Subject: Re: [PATCH v8 3/5] mfd: hi655x: Add MFD driver for hi655x > Date: Mon, 11 Apr 2016 11:41:06 +0100 > From: Lee Jones > To: Chen Feng > CC: lgirdwood@gmail.com, broonie@kernel.org, linux-kernel@vger.kernel.org, w.f@huawei.com, kong.kongxinwei@hisilicon.com, haojian.zhuang@linaro.org, suzhuangluan@hisilicon.com, dan.zhao@hisilicon.com > > On Sun, 14 Feb 2016, Chen Feng wrote: > > > Add PMIC MFD driver to support hisilicon hi665x. > > > > Signed-off-by: Chen Feng > > Signed-off-by: Fei Wang > > Signed-off-by: Xinwei Kong > > Reviewed-by: Haojian Zhuang > > Acked-by: Lee Jones > > --- > > drivers/mfd/Kconfig | 10 +++ > > drivers/mfd/Makefile | 1 + > > drivers/mfd/hi655x-pmic.c | 162 ++++++++++++++++++++++++++++++++++++++++ > > include/linux/mfd/hi655x-pmic.h | 55 ++++++++++++++ > > 4 files changed, 228 insertions(+) > > create mode 100644 drivers/mfd/hi655x-pmic.c > > create mode 100644 include/linux/mfd/hi655x-pmic.h > > Applied, thanks. Hi, Lee, Mark I still didn't see this patch in linux-next (next-20160418) since your replied "Applied". Are you expecting anything else? Dependencies? I didn't see any unsolved review comments actually. But if there is, please let us know, so I can send an updated version. -Guodong > > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index 9ca66de..5b1c091 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -284,6 +284,16 @@ config MFD_HI6421_PMIC > > menus in order to enable them. > > We communicate with the Hi6421 via memory-mapped I/O. > > > > +config MFD_HI655X_PMIC > > + tristate "HiSilicon Hi655X series PMU/Codec IC" > > + depends on ARCH_HISI || COMPILE_TEST > > + depends on OF > > + select MFD_CORE > > + select REGMAP_MMIO > > + select REGMAP_IRQ > > + help > > + Select this option to enable Hisilicon hi655x series pmic driver. > > + > > config HTC_EGPIO > > bool "HTC EGPIO support" > > depends on GPIOLIB && ARM > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > > index 0f230a6..1e166c1 100644 > > --- a/drivers/mfd/Makefile > > +++ b/drivers/mfd/Makefile > > @@ -190,6 +190,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o > > obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o > > obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o > > obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o > > +obj-$(CONFIG_MFD_HI655X_PMIC) += hi655x-pmic.o > > obj-$(CONFIG_MFD_DLN2) += dln2.o > > obj-$(CONFIG_MFD_RT5033) += rt5033.o > > obj-$(CONFIG_MFD_SKY81452) += sky81452.o > > diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c > > new file mode 100644 > > index 0000000..05ddc78 > > --- /dev/null > > +++ b/drivers/mfd/hi655x-pmic.c > > @@ -0,0 +1,162 @@ > > +/* > > + * Device driver for MFD hi655x PMIC > > + * > > + * Copyright (c) 2016 Hisilicon. > > + * > > + * Authors: > > + * Chen Feng > > + * Fei Wang > > + * > > + * 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 > > + > > +static const struct mfd_cell hi655x_pmic_devs[] = { > > + { .name = "hi655x-regulator", }, > > +}; > > + > > +static const struct regmap_irq hi655x_irqs[] = { > > + { .reg_offset = 0, .mask = OTMP_D1R_INT }, > > + { .reg_offset = 0, .mask = VSYS_2P5_R_INT }, > > + { .reg_offset = 0, .mask = VSYS_UV_D3R_INT }, > > + { .reg_offset = 0, .mask = VSYS_6P0_D200UR_INT }, > > + { .reg_offset = 0, .mask = PWRON_D4SR_INT }, > > + { .reg_offset = 0, .mask = PWRON_D20F_INT }, > > + { .reg_offset = 0, .mask = PWRON_D20R_INT }, > > + { .reg_offset = 0, .mask = RESERVE_INT }, > > +}; > > + > > +static const struct regmap_irq_chip hi655x_irq_chip = { > > + .name = "hi655x-pmic", > > + .irqs = hi655x_irqs, > > + .num_regs = 1, > > + .num_irqs = ARRAY_SIZE(hi655x_irqs), > > + .status_base = HI655X_IRQ_STAT_BASE, > > + .mask_base = HI655X_IRQ_MASK_BASE, > > +}; > > + > > +static struct regmap_config hi655x_regmap_config = { > > + .reg_bits = 32, > > + .reg_stride = HI655X_STRIDE, > > + .val_bits = 8, > > + .max_register = HI655X_BUS_ADDR(0xFFF), > > +}; > > + > > +static void hi655x_local_irq_clear(struct regmap *map) > > +{ > > + int i; > > + > > + regmap_write(map, HI655X_ANA_IRQM_BASE, HI655X_IRQ_CLR); > > + for (i = 0; i < HI655X_IRQ_ARRAY; i++) { > > + regmap_write(map, HI655X_IRQ_STAT_BASE + i * HI655X_STRIDE, > > + HI655X_IRQ_CLR); > > + } > > +} > > + > > +static int hi655x_pmic_probe(struct platform_device *pdev) > > +{ > > + int ret; > > + struct hi655x_pmic *pmic; > > + struct device *dev = &pdev->dev; > > + struct device_node *np = dev->of_node; > > + void __iomem *base; > > + > > + pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL); > > + if (!pmic) > > + return -ENOMEM; > > + pmic->dev = dev; > > + > > + pmic->res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > > + if (!pmic->res) > > + return -ENOENT; > > + > > + base = devm_ioremap_resource(dev, pmic->res); > > + if (!base) > > + return -ENOMEM; > > + > > + pmic->regmap = devm_regmap_init_mmio_clk(dev, NULL, base, > > + &hi655x_regmap_config); > > + > > + regmap_read(pmic->regmap, HI655X_BUS_ADDR(HI655X_VER_REG), &pmic->ver); > > + if ((pmic->ver < PMU_VER_START) || (pmic->ver > PMU_VER_END)) { > > + dev_warn(dev, "PMU version %d unsupported\n", pmic->ver); > > + return -EINVAL; > > + } > > + > > + hi655x_local_irq_clear(pmic->regmap); > > + > > + pmic->gpio = of_get_named_gpio(np, "pmic-gpios", 0); > > + if (!gpio_is_valid(pmic->gpio)) { > > + dev_err(dev, "Failed to get the pmic-gpios\n"); > > + return -ENODEV; > > + } > > + > > + ret = devm_gpio_request_one(dev, pmic->gpio, GPIOF_IN, > > + "hi655x_pmic_irq"); > > + if (ret < 0) { > > + dev_err(dev, "Failed to request gpio %d ret = %d\n", > > + pmic->gpio, ret); > > + return ret; > > + } > > + > > + ret = regmap_add_irq_chip(pmic->regmap, gpio_to_irq(pmic->gpio), > > + IRQF_TRIGGER_LOW | IRQF_NO_SUSPEND, 0, > > + &hi655x_irq_chip, &pmic->irq_data); > > + if (ret) { > > + dev_err(dev, "Failed to obtain 'hi655x_pmic_irq' %d\n", ret); > > + return ret; > > + } > > + > > + platform_set_drvdata(pdev, pmic); > > + > > + ret = mfd_add_devices(dev, PLATFORM_DEVID_AUTO, hi655x_pmic_devs, > > + ARRAY_SIZE(hi655x_pmic_devs), NULL, 0, NULL); > > + if (ret) { > > + dev_err(dev, "Failed to register device %d\n", ret); > > + regmap_del_irq_chip(gpio_to_irq(pmic->gpio), pmic->irq_data); > > + return ret; > > + } > > + > > + return 0; > > +} > > + > > +static int hi655x_pmic_remove(struct platform_device *pdev) > > +{ > > + struct hi655x_pmic *pmic = platform_get_drvdata(pdev); > > + > > + regmap_del_irq_chip(gpio_to_irq(pmic->gpio), pmic->irq_data); > > + mfd_remove_devices(&pdev->dev); > > + return 0; > > +} > > + > > +static const struct of_device_id hi655x_pmic_match[] = { > > + { .compatible = "hisilicon,hi655x-pmic", }, > > + {}, > > +}; > > + > > +static struct platform_driver hi655x_pmic_driver = { > > + .driver = { > > + .name = "hi655x-pmic", > > + .of_match_table = of_match_ptr(hi655x_pmic_match), > > + }, > > + .probe = hi655x_pmic_probe, > > + .remove = hi655x_pmic_remove, > > +}; > > +module_platform_driver(hi655x_pmic_driver); > > + > > +MODULE_AUTHOR("Chen Feng "); > > +MODULE_DESCRIPTION("Hisilicon hi655x PMIC driver"); > > +MODULE_LICENSE("GPL v2"); > > diff --git a/include/linux/mfd/hi655x-pmic.h b/include/linux/mfd/hi655x-pmic.h > > new file mode 100644 > > index 0000000..dbbe9a6 > > --- /dev/null > > +++ b/include/linux/mfd/hi655x-pmic.h > > @@ -0,0 +1,55 @@ > > +/* > > + * Device driver for regulators in hi655x IC > > + * > > + * Copyright (c) 2016 Hisilicon. > > + * > > + * Authors: > > + * Chen Feng > > + * Fei Wang > > + * > > + * 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 __HI655X_PMIC_H > > +#define __HI655X_PMIC_H > > + > > +/* Hi655x registers are mapped to memory bus in 4 bytes stride */ > > +#define HI655X_STRIDE 4 > > +#define HI655X_BUS_ADDR(x) ((x) << 2) > > + > > +#define HI655X_BITS 8 > > + > > +#define HI655X_NR_IRQ 32 > > + > > +#define HI655X_IRQ_STAT_BASE (0x003 << 2) > > +#define HI655X_IRQ_MASK_BASE (0x007 << 2) > > +#define HI655X_ANA_IRQM_BASE (0x1b5 << 2) > > +#define HI655X_IRQ_ARRAY 4 > > +#define HI655X_IRQ_MASK 0xFF > > +#define HI655X_IRQ_CLR 0xFF > > +#define HI655X_VER_REG 0x00 > > + > > +#define PMU_VER_START 0x10 > > +#define PMU_VER_END 0x38 > > + > > +#define RESERVE_INT BIT(7) > > +#define PWRON_D20R_INT BIT(6) > > +#define PWRON_D20F_INT BIT(5) > > +#define PWRON_D4SR_INT BIT(4) > > +#define VSYS_6P0_D200UR_INT BIT(3) > > +#define VSYS_UV_D3R_INT BIT(2) > > +#define VSYS_2P5_R_INT BIT(1) > > +#define OTMP_D1R_INT BIT(0) > > + > > +struct hi655x_pmic { > > + struct resource *res; > > + struct device *dev; > > + struct regmap *regmap; > > + int gpio; > > + unsigned int ver; > > + struct regmap_irq_chip_data *irq_data; > > +}; > > + > > +#endif > > -- > Lee Jones > Linaro STMicroelectronics Landing Team Lead > Linaro.org │ Open source software for ARM SoCs > Follow Linaro: Facebook | Twitter | Blog > > . > > > >