From: "Andrew F. Davis" <afd@ti.com> To: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org>, Linus Walleij <linus.walleij@linaro.org>, Alexandre Courbot <gnurou@gmail.com>, Samuel Ortiz <sameo@linux.intel.com>, Lee Jones <lee.jones@linaro.org>, Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org> Cc: devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, "Andrew F. Davis" <afd@ti.com> Subject: [PATCH v4 4/4] gpio: tps65086: Add GPO driver for the TPS65086 PMIC Date: Thu, 19 Nov 2015 17:01:42 -0600 [thread overview] Message-ID: <1447974102-24938-5-git-send-email-afd@ti.com> (raw) In-Reply-To: <1447974102-24938-1-git-send-email-afd@ti.com> Add support for the TPS65086 PMIC GPOs. TPS65086 has four configurable GPOs that can be used for several purposes. These are output only. Signed-off-by: Andrew F. Davis <afd@ti.com> --- drivers/gpio/Kconfig | 6 ++ drivers/gpio/Makefile | 1 + drivers/gpio/gpio-tps65086.c | 144 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 151 insertions(+) create mode 100644 drivers/gpio/gpio-tps65086.c diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index b18bea0..f357a2e 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -838,6 +838,12 @@ config GPIO_TIMBERDALE ---help--- Add support for the GPIO IP in the timberdale FPGA. +config GPIO_TPS65086 + tristate "TI TPS65086 GPO" + depends on MFD_TPS65086 + help + This driver supports the GPO on TI TPS65086x PMICs. + config GPIO_TPS6586X bool "TPS6586X GPIO" depends on MFD_TPS6586X diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 986dbd8..fd98126 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -95,6 +95,7 @@ obj-$(CONFIG_GPIO_TC3589X) += gpio-tc3589x.o obj-$(CONFIG_ARCH_TEGRA) += gpio-tegra.o obj-$(CONFIG_GPIO_TIMBERDALE) += gpio-timberdale.o obj-$(CONFIG_GPIO_PALMAS) += gpio-palmas.o +obj-$(CONFIG_GPIO_TPS65086) += gpio-tps65086.o obj-$(CONFIG_GPIO_TPS6586X) += gpio-tps6586x.o obj-$(CONFIG_GPIO_TPS65910) += gpio-tps65910.o obj-$(CONFIG_GPIO_TPS65912) += gpio-tps65912.o diff --git a/drivers/gpio/gpio-tps65086.c b/drivers/gpio/gpio-tps65086.c new file mode 100644 index 0000000..22bd796 --- /dev/null +++ b/drivers/gpio/gpio-tps65086.c @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ + * + * Author: Andrew F. Davis <afd@ti.com> + * + * 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 program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether expressed or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License version 2 for more details. + * + * Based on the TPS65912 driver + */ + +#include <linux/gpio.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <linux/mfd/tps65086.h> + +struct tps65086_gpio { + struct gpio_chip chip; + struct tps65086 *tps; +}; + +static inline struct tps65086_gpio *to_tps65086_gpio(struct gpio_chip *chip) +{ + return container_of(chip, struct tps65086_gpio, chip); +} + +static int tps65086_gpio_get_direction(struct gpio_chip *chip, + unsigned offset) +{ + return GPIOF_DIR_OUT; +} + +static int tps65086_gpio_direction_input(struct gpio_chip *chip, + unsigned offset) +{ + /* This device is output only */ + return -EINVAL; +} + +static int tps65086_gpio_direction_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct tps65086_gpio *gpio = to_tps65086_gpio(chip); + + /* Set the initial value */ + regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL, + BIT(4 + offset), value ? BIT(4 + offset) : 0); + + return 0; +} + +static int tps65086_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + struct tps65086_gpio *gpio = to_tps65086_gpio(chip); + int ret, val; + + ret = regmap_read(gpio->tps->regmap, TPS65086_GPOCTRL, &val); + if (ret < 0) + return ret; + + return val & BIT(4 + offset); +} + +static void tps65086_gpio_set(struct gpio_chip *chip, unsigned offset, + int value) +{ + struct tps65086_gpio *gpio = to_tps65086_gpio(chip); + + regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL, + BIT(4 + offset), value ? BIT(4 + offset) : 0); +} + +static struct gpio_chip template_chip = { + .label = "tps65086-gpio", + .owner = THIS_MODULE, + .get_direction = tps65086_gpio_get_direction, + .direction_input = tps65086_gpio_direction_input, + .direction_output = tps65086_gpio_direction_output, + .get = tps65086_gpio_get, + .set = tps65086_gpio_set, + .base = -1, + .ngpio = 4, + .can_sleep = true, +}; + +static int tps65086_gpio_probe(struct platform_device *pdev) +{ + struct tps65086_gpio *gpio; + int ret; + + gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); + if (!gpio) + return -ENOMEM; + + platform_set_drvdata(pdev, gpio); + + gpio->tps = dev_get_drvdata(pdev->dev.parent); + gpio->chip = template_chip; + gpio->chip.dev = gpio->tps->dev; + + ret = gpiochip_add(&gpio->chip); + if (ret < 0) { + dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret); + return ret; + } + + return 0; +} + +static int tps65086_gpio_remove(struct platform_device *pdev) +{ + struct tps65086_gpio *gpio = platform_get_drvdata(pdev); + + gpiochip_remove(&gpio->chip); + + return 0; +} + +static const struct platform_device_id tps65086_gpio_id_table[] = { + { "tps65086-gpio", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, tps65086_gpio_id_table); + +static struct platform_driver tps65086_gpio_driver = { + .driver = { + .name = "tps65086-gpio", + }, + .probe = tps65086_gpio_probe, + .remove = tps65086_gpio_remove, + .id_table = tps65086_gpio_id_table, +}; +module_platform_driver(tps65086_gpio_driver); + +MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); +MODULE_DESCRIPTION("TPS65086 GPIO driver"); +MODULE_LICENSE("GPL v2"); -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: "Andrew F. Davis" <afd@ti.com> To: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org>, Linus Walleij <linus.walleij@linaro.org>, Alexandre Courbot <gnurou@gmail.com>, Samuel Ortiz <sameo@linux.intel.com>, Lee Jones <lee.jones@linaro.org>, Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org> Cc: <devicetree@vger.kernel.org>, <linux-gpio@vger.kernel.org>, <linux-kernel@vger.kernel.org>, "Andrew F. Davis" <afd@ti.com> Subject: [PATCH v4 4/4] gpio: tps65086: Add GPO driver for the TPS65086 PMIC Date: Thu, 19 Nov 2015 17:01:42 -0600 [thread overview] Message-ID: <1447974102-24938-5-git-send-email-afd@ti.com> (raw) In-Reply-To: <1447974102-24938-1-git-send-email-afd@ti.com> Add support for the TPS65086 PMIC GPOs. TPS65086 has four configurable GPOs that can be used for several purposes. These are output only. Signed-off-by: Andrew F. Davis <afd@ti.com> --- drivers/gpio/Kconfig | 6 ++ drivers/gpio/Makefile | 1 + drivers/gpio/gpio-tps65086.c | 144 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 151 insertions(+) create mode 100644 drivers/gpio/gpio-tps65086.c diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index b18bea0..f357a2e 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -838,6 +838,12 @@ config GPIO_TIMBERDALE ---help--- Add support for the GPIO IP in the timberdale FPGA. +config GPIO_TPS65086 + tristate "TI TPS65086 GPO" + depends on MFD_TPS65086 + help + This driver supports the GPO on TI TPS65086x PMICs. + config GPIO_TPS6586X bool "TPS6586X GPIO" depends on MFD_TPS6586X diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 986dbd8..fd98126 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -95,6 +95,7 @@ obj-$(CONFIG_GPIO_TC3589X) += gpio-tc3589x.o obj-$(CONFIG_ARCH_TEGRA) += gpio-tegra.o obj-$(CONFIG_GPIO_TIMBERDALE) += gpio-timberdale.o obj-$(CONFIG_GPIO_PALMAS) += gpio-palmas.o +obj-$(CONFIG_GPIO_TPS65086) += gpio-tps65086.o obj-$(CONFIG_GPIO_TPS6586X) += gpio-tps6586x.o obj-$(CONFIG_GPIO_TPS65910) += gpio-tps65910.o obj-$(CONFIG_GPIO_TPS65912) += gpio-tps65912.o diff --git a/drivers/gpio/gpio-tps65086.c b/drivers/gpio/gpio-tps65086.c new file mode 100644 index 0000000..22bd796 --- /dev/null +++ b/drivers/gpio/gpio-tps65086.c @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ + * + * Author: Andrew F. Davis <afd@ti.com> + * + * 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 program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether expressed or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License version 2 for more details. + * + * Based on the TPS65912 driver + */ + +#include <linux/gpio.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <linux/mfd/tps65086.h> + +struct tps65086_gpio { + struct gpio_chip chip; + struct tps65086 *tps; +}; + +static inline struct tps65086_gpio *to_tps65086_gpio(struct gpio_chip *chip) +{ + return container_of(chip, struct tps65086_gpio, chip); +} + +static int tps65086_gpio_get_direction(struct gpio_chip *chip, + unsigned offset) +{ + return GPIOF_DIR_OUT; +} + +static int tps65086_gpio_direction_input(struct gpio_chip *chip, + unsigned offset) +{ + /* This device is output only */ + return -EINVAL; +} + +static int tps65086_gpio_direction_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct tps65086_gpio *gpio = to_tps65086_gpio(chip); + + /* Set the initial value */ + regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL, + BIT(4 + offset), value ? BIT(4 + offset) : 0); + + return 0; +} + +static int tps65086_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + struct tps65086_gpio *gpio = to_tps65086_gpio(chip); + int ret, val; + + ret = regmap_read(gpio->tps->regmap, TPS65086_GPOCTRL, &val); + if (ret < 0) + return ret; + + return val & BIT(4 + offset); +} + +static void tps65086_gpio_set(struct gpio_chip *chip, unsigned offset, + int value) +{ + struct tps65086_gpio *gpio = to_tps65086_gpio(chip); + + regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL, + BIT(4 + offset), value ? BIT(4 + offset) : 0); +} + +static struct gpio_chip template_chip = { + .label = "tps65086-gpio", + .owner = THIS_MODULE, + .get_direction = tps65086_gpio_get_direction, + .direction_input = tps65086_gpio_direction_input, + .direction_output = tps65086_gpio_direction_output, + .get = tps65086_gpio_get, + .set = tps65086_gpio_set, + .base = -1, + .ngpio = 4, + .can_sleep = true, +}; + +static int tps65086_gpio_probe(struct platform_device *pdev) +{ + struct tps65086_gpio *gpio; + int ret; + + gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); + if (!gpio) + return -ENOMEM; + + platform_set_drvdata(pdev, gpio); + + gpio->tps = dev_get_drvdata(pdev->dev.parent); + gpio->chip = template_chip; + gpio->chip.dev = gpio->tps->dev; + + ret = gpiochip_add(&gpio->chip); + if (ret < 0) { + dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret); + return ret; + } + + return 0; +} + +static int tps65086_gpio_remove(struct platform_device *pdev) +{ + struct tps65086_gpio *gpio = platform_get_drvdata(pdev); + + gpiochip_remove(&gpio->chip); + + return 0; +} + +static const struct platform_device_id tps65086_gpio_id_table[] = { + { "tps65086-gpio", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, tps65086_gpio_id_table); + +static struct platform_driver tps65086_gpio_driver = { + .driver = { + .name = "tps65086-gpio", + }, + .probe = tps65086_gpio_probe, + .remove = tps65086_gpio_remove, + .id_table = tps65086_gpio_id_table, +}; +module_platform_driver(tps65086_gpio_driver); + +MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); +MODULE_DESCRIPTION("TPS65086 GPIO driver"); +MODULE_LICENSE("GPL v2"); -- 1.9.1
next prev parent reply other threads:[~2015-11-19 23:01 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-11-19 23:01 [PATCH v4 0/4] Add support for the TI TPS65086 PMIC Andrew F. Davis 2015-11-19 23:01 ` Andrew F. Davis 2015-11-19 23:01 ` [PATCH v4 1/4] Documentation: tps65086: Add DT bindings for the " Andrew F. Davis 2015-11-19 23:01 ` Andrew F. Davis 2015-11-20 16:33 ` Rob Herring 2015-11-23 16:09 ` Lee Jones 2015-11-23 16:09 ` Lee Jones 2015-11-19 23:01 ` [PATCH v4 2/4] mfd: tps65086: Add driver " Andrew F. Davis 2015-11-19 23:01 ` Andrew F. Davis 2015-11-23 16:20 ` Lee Jones 2015-11-19 23:01 ` [PATCH v4 3/4] regulator: tps65086: Add regulator " Andrew F. Davis 2015-11-19 23:01 ` Andrew F. Davis 2015-11-21 13:37 ` Mark Brown 2015-11-21 20:40 ` Andrew F. Davis 2015-11-21 20:40 ` Andrew F. Davis 2015-11-22 13:13 ` Mark Brown 2015-11-23 17:40 ` Andrew F. Davis 2015-11-23 17:40 ` Andrew F. Davis 2015-11-23 19:00 ` Mark Brown 2015-11-23 19:18 ` Andrew F. Davis 2015-11-23 19:18 ` Andrew F. Davis 2015-11-24 12:11 ` Mark Brown 2015-11-19 23:01 ` Andrew F. Davis [this message] 2015-11-19 23:01 ` [PATCH v4 4/4] gpio: tps65086: Add GPO " Andrew F. Davis [not found] ` <1447974102-24938-5-git-send-email-afd-l0cyMroinI0@public.gmane.org> 2015-11-30 8:50 ` Linus Walleij 2015-11-30 8:50 ` Linus Walleij
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