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Message-ID: <f000cf13-5e73-3c76-700c-a087954d4050@redhat.com>
Date: Mon, 20 Jun 2022 10:51:33 +0200
From: Hans de Goede <hdegoede@...hat.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org
Cc: Andy Shevchenko <andy@...nel.org>
Subject: Re: [PATCH v1 1/9] mfd: intel_soc_pmic_crc: Merge Intel PMIC core to
crc
Hi,
Thank you for this series, cleaning this up is long overdue.
The entire series looks good to me:
Reviewed-by: Hans de Goede <hdegoede@...hat.com>
for the series.
Regards,
Hans
p.s.
Maybe do a follow up renaming CONFIG_INTEL_SOC_PMIC to
CONFIG_INTEL_SOC_PMIC_CRC and also change the module name
from intel-soc-pmic to intel-soc-pmic-crc ?
I don't expect any userspace dependencies on the module-name
(there are no module parameters) so this should be fine.
On 6/16/22 20:25, Andy Shevchenko wrote:
> The core part is misleading since its only purpose to serve Crystal Cove PMIC,
> although for couple of different platforms. Merge core part into crc one.
>
> Advantages among others are:
> - speed up a compilation and build
> - decreasing the code base
> - reducing noise in the namespace by making some data static and const
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
> drivers/mfd/Makefile | 3 +-
> drivers/mfd/intel_soc_pmic_core.c | 160 -----------------------------
> drivers/mfd/intel_soc_pmic_core.h | 25 -----
> drivers/mfd/intel_soc_pmic_crc.c | 162 ++++++++++++++++++++++++++++--
> 4 files changed, 157 insertions(+), 193 deletions(-)
> delete mode 100644 drivers/mfd/intel_soc_pmic_core.c
> delete mode 100644 drivers/mfd/intel_soc_pmic_core.h
>
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index 858cacf659d6..61db669f864c 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -236,8 +236,7 @@ obj-$(CONFIG_MFD_RT4831) += rt4831.o
> obj-$(CONFIG_MFD_RT5033) += rt5033.o
> obj-$(CONFIG_MFD_SKY81452) += sky81452.o
>
> -intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o
> -obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
> +obj-$(CONFIG_INTEL_SOC_PMIC) += intel_soc_pmic_crc.o
> obj-$(CONFIG_INTEL_SOC_PMIC_BXTWC) += intel_soc_pmic_bxtwc.o
> obj-$(CONFIG_INTEL_SOC_PMIC_CHTWC) += intel_soc_pmic_chtwc.o
> obj-$(CONFIG_INTEL_SOC_PMIC_CHTDC_TI) += intel_soc_pmic_chtdc_ti.o
> diff --git a/drivers/mfd/intel_soc_pmic_core.c b/drivers/mfd/intel_soc_pmic_core.c
> deleted file mode 100644
> index 5e8c94e008ed..000000000000
> --- a/drivers/mfd/intel_soc_pmic_core.c
> +++ /dev/null
> @@ -1,160 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0
> -/*
> - * Intel SoC PMIC MFD Driver
> - *
> - * Copyright (C) 2013, 2014 Intel Corporation. All rights reserved.
> - *
> - * Author: Yang, Bin <bin.yang@...el.com>
> - * Author: Zhu, Lejun <lejun.zhu@...ux.intel.com>
> - */
> -
> -#include <linux/acpi.h>
> -#include <linux/i2c.h>
> -#include <linux/interrupt.h>
> -#include <linux/module.h>
> -#include <linux/mfd/core.h>
> -#include <linux/mfd/intel_soc_pmic.h>
> -#include <linux/platform_data/x86/soc.h>
> -#include <linux/pwm.h>
> -#include <linux/regmap.h>
> -
> -#include "intel_soc_pmic_core.h"
> -
> -/* PWM consumed by the Intel GFX */
> -static struct pwm_lookup crc_pwm_lookup[] = {
> - PWM_LOOKUP("crystal_cove_pwm", 0, "0000:00:02.0", "pwm_pmic_backlight", 0, PWM_POLARITY_NORMAL),
> -};
> -
> -static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c,
> - const struct i2c_device_id *i2c_id)
> -{
> - struct device *dev = &i2c->dev;
> - struct intel_soc_pmic_config *config;
> - struct intel_soc_pmic *pmic;
> - int ret;
> -
> - if (soc_intel_is_byt())
> - config = &intel_soc_pmic_config_byt_crc;
> - else
> - config = &intel_soc_pmic_config_cht_crc;
> -
> - pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL);
> - if (!pmic)
> - return -ENOMEM;
> -
> - dev_set_drvdata(dev, pmic);
> -
> - pmic->regmap = devm_regmap_init_i2c(i2c, config->regmap_config);
> - if (IS_ERR(pmic->regmap))
> - return PTR_ERR(pmic->regmap);
> -
> - pmic->irq = i2c->irq;
> -
> - ret = regmap_add_irq_chip(pmic->regmap, pmic->irq,
> - config->irq_flags | IRQF_ONESHOT,
> - 0, config->irq_chip,
> - &pmic->irq_chip_data);
> - if (ret)
> - return ret;
> -
> - ret = enable_irq_wake(pmic->irq);
> - if (ret)
> - dev_warn(dev, "Can't enable IRQ as wake source: %d\n", ret);
> -
> - /* Add lookup table for crc-pwm */
> - pwm_add_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
> -
> - /* To distuingish this domain from the GPIO/charger's irqchip domains */
> - irq_domain_update_bus_token(regmap_irq_get_domain(pmic->irq_chip_data),
> - DOMAIN_BUS_NEXUS);
> -
> - ret = mfd_add_devices(dev, -1, config->cell_dev,
> - config->n_cell_devs, NULL, 0,
> - regmap_irq_get_domain(pmic->irq_chip_data));
> - if (ret)
> - goto err_del_irq_chip;
> -
> - return 0;
> -
> -err_del_irq_chip:
> - regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
> - return ret;
> -}
> -
> -static int intel_soc_pmic_i2c_remove(struct i2c_client *i2c)
> -{
> - struct intel_soc_pmic *pmic = dev_get_drvdata(&i2c->dev);
> -
> - regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
> -
> - /* remove crc-pwm lookup table */
> - pwm_remove_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
> -
> - mfd_remove_devices(&i2c->dev);
> -
> - return 0;
> -}
> -
> -static void intel_soc_pmic_shutdown(struct i2c_client *i2c)
> -{
> - struct intel_soc_pmic *pmic = dev_get_drvdata(&i2c->dev);
> -
> - disable_irq(pmic->irq);
> -
> - return;
> -}
> -
> -#if defined(CONFIG_PM_SLEEP)
> -static int intel_soc_pmic_suspend(struct device *dev)
> -{
> - struct intel_soc_pmic *pmic = dev_get_drvdata(dev);
> -
> - disable_irq(pmic->irq);
> -
> - return 0;
> -}
> -
> -static int intel_soc_pmic_resume(struct device *dev)
> -{
> - struct intel_soc_pmic *pmic = dev_get_drvdata(dev);
> -
> - enable_irq(pmic->irq);
> -
> - return 0;
> -}
> -#endif
> -
> -static SIMPLE_DEV_PM_OPS(intel_soc_pmic_pm_ops, intel_soc_pmic_suspend,
> - intel_soc_pmic_resume);
> -
> -static const struct i2c_device_id intel_soc_pmic_i2c_id[] = {
> - { }
> -};
> -MODULE_DEVICE_TABLE(i2c, intel_soc_pmic_i2c_id);
> -
> -#if defined(CONFIG_ACPI)
> -static const struct acpi_device_id intel_soc_pmic_acpi_match[] = {
> - { "INT33FD" },
> - { },
> -};
> -MODULE_DEVICE_TABLE(acpi, intel_soc_pmic_acpi_match);
> -#endif
> -
> -static struct i2c_driver intel_soc_pmic_i2c_driver = {
> - .driver = {
> - .name = "intel_soc_pmic_i2c",
> - .pm = &intel_soc_pmic_pm_ops,
> - .acpi_match_table = ACPI_PTR(intel_soc_pmic_acpi_match),
> - },
> - .probe = intel_soc_pmic_i2c_probe,
> - .remove = intel_soc_pmic_i2c_remove,
> - .id_table = intel_soc_pmic_i2c_id,
> - .shutdown = intel_soc_pmic_shutdown,
> -};
> -
> -module_i2c_driver(intel_soc_pmic_i2c_driver);
> -
> -MODULE_DESCRIPTION("I2C driver for Intel SoC PMIC");
> -MODULE_LICENSE("GPL v2");
> -MODULE_AUTHOR("Yang, Bin <bin.yang@...el.com>");
> -MODULE_AUTHOR("Zhu, Lejun <lejun.zhu@...ux.intel.com>");
> diff --git a/drivers/mfd/intel_soc_pmic_core.h b/drivers/mfd/intel_soc_pmic_core.h
> deleted file mode 100644
> index d490685845eb..000000000000
> --- a/drivers/mfd/intel_soc_pmic_core.h
> +++ /dev/null
> @@ -1,25 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -/*
> - * Intel SoC PMIC MFD Driver
> - *
> - * Copyright (C) 2012-2014 Intel Corporation. All rights reserved.
> - *
> - * Author: Yang, Bin <bin.yang@...el.com>
> - * Author: Zhu, Lejun <lejun.zhu@...ux.intel.com>
> - */
> -
> -#ifndef __INTEL_SOC_PMIC_CORE_H__
> -#define __INTEL_SOC_PMIC_CORE_H__
> -
> -struct intel_soc_pmic_config {
> - unsigned long irq_flags;
> - struct mfd_cell *cell_dev;
> - int n_cell_devs;
> - const struct regmap_config *regmap_config;
> - const struct regmap_irq_chip *irq_chip;
> -};
> -
> -extern struct intel_soc_pmic_config intel_soc_pmic_config_byt_crc;
> -extern struct intel_soc_pmic_config intel_soc_pmic_config_cht_crc;
> -
> -#endif /* __INTEL_SOC_PMIC_CORE_H__ */
> diff --git a/drivers/mfd/intel_soc_pmic_crc.c b/drivers/mfd/intel_soc_pmic_crc.c
> index 5bb0367bd974..b5974dfcc603 100644
> --- a/drivers/mfd/intel_soc_pmic_crc.c
> +++ b/drivers/mfd/intel_soc_pmic_crc.c
> @@ -2,18 +2,21 @@
> /*
> * Device access for Crystal Cove PMIC
> *
> - * Copyright (C) 2013, 2014 Intel Corporation. All rights reserved.
> + * Copyright (C) 2012-2014 Intel Corporation. All rights reserved.
> *
> * Author: Yang, Bin <bin.yang@...el.com>
> * Author: Zhu, Lejun <lejun.zhu@...ux.intel.com>
> */
>
> +#include <linux/acpi.h>
> +#include <linux/i2c.h>
> #include <linux/interrupt.h>
> -#include <linux/regmap.h>
> +#include <linux/module.h>
> #include <linux/mfd/core.h>
> #include <linux/mfd/intel_soc_pmic.h>
> -
> -#include "intel_soc_pmic_core.h"
> +#include <linux/platform_data/x86/soc.h>
> +#include <linux/pwm.h>
> +#include <linux/regmap.h>
>
> #define CRYSTAL_COVE_MAX_REGISTER 0xC6
>
> @@ -132,7 +135,20 @@ static const struct regmap_irq_chip crystal_cove_irq_chip = {
> .mask_base = CRYSTAL_COVE_REG_MIRQLVL1,
> };
>
> -struct intel_soc_pmic_config intel_soc_pmic_config_byt_crc = {
> +/* PWM consumed by the Intel GFX */
> +static struct pwm_lookup crc_pwm_lookup[] = {
> + PWM_LOOKUP("crystal_cove_pwm", 0, "0000:00:02.0", "pwm_pmic_backlight", 0, PWM_POLARITY_NORMAL),
> +};
> +
> +struct intel_soc_pmic_config {
> + unsigned long irq_flags;
> + struct mfd_cell *cell_dev;
> + int n_cell_devs;
> + const struct regmap_config *regmap_config;
> + const struct regmap_irq_chip *irq_chip;
> +};
> +
> +static const struct intel_soc_pmic_config intel_soc_pmic_config_byt_crc = {
> .irq_flags = IRQF_TRIGGER_RISING,
> .cell_dev = crystal_cove_byt_dev,
> .n_cell_devs = ARRAY_SIZE(crystal_cove_byt_dev),
> @@ -140,10 +156,144 @@ struct intel_soc_pmic_config intel_soc_pmic_config_byt_crc = {
> .irq_chip = &crystal_cove_irq_chip,
> };
>
> -struct intel_soc_pmic_config intel_soc_pmic_config_cht_crc = {
> +static const struct intel_soc_pmic_config intel_soc_pmic_config_cht_crc = {
> .irq_flags = IRQF_TRIGGER_RISING,
> .cell_dev = crystal_cove_cht_dev,
> .n_cell_devs = ARRAY_SIZE(crystal_cove_cht_dev),
> .regmap_config = &crystal_cove_regmap_config,
> .irq_chip = &crystal_cove_irq_chip,
> };
> +
> +static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c,
> + const struct i2c_device_id *i2c_id)
> +{
> + const struct intel_soc_pmic_config *config;
> + struct device *dev = &i2c->dev;
> + struct intel_soc_pmic *pmic;
> + int ret;
> +
> + if (soc_intel_is_byt())
> + config = &intel_soc_pmic_config_byt_crc;
> + else
> + config = &intel_soc_pmic_config_cht_crc;
> +
> + pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL);
> + if (!pmic)
> + return -ENOMEM;
> +
> + dev_set_drvdata(dev, pmic);
> +
> + pmic->regmap = devm_regmap_init_i2c(i2c, config->regmap_config);
> + if (IS_ERR(pmic->regmap))
> + return PTR_ERR(pmic->regmap);
> +
> + pmic->irq = i2c->irq;
> +
> + ret = regmap_add_irq_chip(pmic->regmap, pmic->irq,
> + config->irq_flags | IRQF_ONESHOT,
> + 0, config->irq_chip,
> + &pmic->irq_chip_data);
> + if (ret)
> + return ret;
> +
> + ret = enable_irq_wake(pmic->irq);
> + if (ret)
> + dev_warn(dev, "Can't enable IRQ as wake source: %d\n", ret);
> +
> + /* Add lookup table for crc-pwm */
> + pwm_add_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
> +
> + /* To distuingish this domain from the GPIO/charger's irqchip domains */
> + irq_domain_update_bus_token(regmap_irq_get_domain(pmic->irq_chip_data),
> + DOMAIN_BUS_NEXUS);
> +
> + ret = mfd_add_devices(dev, -1, config->cell_dev,
> + config->n_cell_devs, NULL, 0,
> + regmap_irq_get_domain(pmic->irq_chip_data));
> + if (ret)
> + goto err_del_irq_chip;
> +
> + return 0;
> +
> +err_del_irq_chip:
> + regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
> + return ret;
> +}
> +
> +static int intel_soc_pmic_i2c_remove(struct i2c_client *i2c)
> +{
> + struct intel_soc_pmic *pmic = dev_get_drvdata(&i2c->dev);
> +
> + regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
> +
> + /* remove crc-pwm lookup table */
> + pwm_remove_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
> +
> + mfd_remove_devices(&i2c->dev);
> +
> + return 0;
> +}
> +
> +static void intel_soc_pmic_shutdown(struct i2c_client *i2c)
> +{
> + struct intel_soc_pmic *pmic = dev_get_drvdata(&i2c->dev);
> +
> + disable_irq(pmic->irq);
> +
> + return;
> +}
> +
> +#if defined(CONFIG_PM_SLEEP)
> +static int intel_soc_pmic_suspend(struct device *dev)
> +{
> + struct intel_soc_pmic *pmic = dev_get_drvdata(dev);
> +
> + disable_irq(pmic->irq);
> +
> + return 0;
> +}
> +
> +static int intel_soc_pmic_resume(struct device *dev)
> +{
> + struct intel_soc_pmic *pmic = dev_get_drvdata(dev);
> +
> + enable_irq(pmic->irq);
> +
> + return 0;
> +}
> +#endif
> +
> +static SIMPLE_DEV_PM_OPS(intel_soc_pmic_pm_ops, intel_soc_pmic_suspend,
> + intel_soc_pmic_resume);
> +
> +static const struct i2c_device_id intel_soc_pmic_i2c_id[] = {
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, intel_soc_pmic_i2c_id);
> +
> +#if defined(CONFIG_ACPI)
> +static const struct acpi_device_id intel_soc_pmic_acpi_match[] = {
> + { "INT33FD" },
> + { },
> +};
> +MODULE_DEVICE_TABLE(acpi, intel_soc_pmic_acpi_match);
> +#endif
> +
> +static struct i2c_driver intel_soc_pmic_i2c_driver = {
> + .driver = {
> + .name = "intel_soc_pmic_i2c",
> + .pm = &intel_soc_pmic_pm_ops,
> + .acpi_match_table = ACPI_PTR(intel_soc_pmic_acpi_match),
> + },
> + .probe = intel_soc_pmic_i2c_probe,
> + .remove = intel_soc_pmic_i2c_remove,
> + .id_table = intel_soc_pmic_i2c_id,
> + .shutdown = intel_soc_pmic_shutdown,
> +};
> +
> +module_i2c_driver(intel_soc_pmic_i2c_driver);
> +
> +MODULE_DESCRIPTION("I2C driver for Intel SoC PMIC");
> +MODULE_LICENSE("GPL v2");
> +MODULE_AUTHOR("Yang, Bin <bin.yang@...el.com>");
> +MODULE_AUTHOR("Zhu, Lejun <lejun.zhu@...ux.intel.com>");
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