Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752362AbcDSG5r (ORCPT ); Tue, 19 Apr 2016 02:57:47 -0400 Received: from mail-ig0-f170.google.com ([209.85.213.170]:36340 "EHLO mail-ig0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752285AbcDSG5p convert rfc822-to-8bit (ORCPT ); Tue, 19 Apr 2016 02:57:45 -0400 MIME-Version: 1.0 In-Reply-To: <20160419065324.GA3222@x1> References: <20160411104106.GG8094@x1> <570D982C.6090307@hisilicon.com> <20160419065324.GA3222@x1> Date: Tue, 19 Apr 2016 14:57:38 +0800 Message-ID: Subject: Re: Re: [PATCH v8 3/5] mfd: hi655x: Add MFD driver for hi655x From: Guodong Xu To: Lee Jones Cc: Mark Brown , 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: 12405 Lines: 326 On 19 April 2016 at 14:53, Lee Jones wrote: > On Tue, 19 Apr 2016, Guodong Xu wrote: > >> 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. > > When I applied your patch, I also added ~40 other patches. I haven't > yet got around to editing and pushing them all to -next. I will put > some time aside this morning in order to complete the push. Thanks, Lee. -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