From: Richard Genoud <richard.genoud@gmail.com> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>, "Nicolas Ferre" <nicolas.ferre@atmel.com>, "Linus Walleij" <linus.walleij@linaro.org>, "Alexander Shiyan" <shc_work@mail.ru>, linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org, "Richard Genoud" <richard.genoud@gmail.com> Subject: [PATCH v3 1/7] tty/serial: Add GPIOLIB helpers for controlling modem lines Date: Mon, 17 Feb 2014 17:57:21 +0100 [thread overview] Message-ID: <1392656247-3351-2-git-send-email-richard.genoud@gmail.com> (raw) In-Reply-To: <1392656247-3351-1-git-send-email-richard.genoud@gmail.com> This patch add some helpers to control modem lines (CTS/RTS/DSR...) via GPIO. This will be useful for many boards which have a serial controller that only handle CTS/RTS pins (or even just RX/TX). Signed-off-by: Richard Genoud <richard.genoud@gmail.com> --- Documentation/serial/driver | 21 +++++++ drivers/tty/serial/Kconfig | 3 + drivers/tty/serial/Makefile | 3 + drivers/tty/serial/serial_mctrl_gpio.c | 112 +++++++++++++++++++++++++++++++++ drivers/tty/serial/serial_mctrl_gpio.h | 92 +++++++++++++++++++++++++++ 5 files changed, 231 insertions(+) create mode 100644 drivers/tty/serial/serial_mctrl_gpio.c create mode 100644 drivers/tty/serial/serial_mctrl_gpio.h diff --git a/Documentation/serial/driver b/Documentation/serial/driver index c3a7689a90e6..23aa32667d68 100644 --- a/Documentation/serial/driver +++ b/Documentation/serial/driver @@ -429,3 +429,24 @@ thus: struct uart_port port; int my_stuff; }; + +Modem control lines via GPIO +---------------------------- + +Some helpers are provided in order to set/get modem control lines via GPIO. + +mctrl_gpio_init(dev, gpios): + This will get the {cts,rts,...}-gpios from device tree if they are + present and request them, set direction etc. devm_* functions are + used, so there's no need to call mctrl_gpio_free(). + +mctrl_gpio_free(dev, gpios): + This will free the requested gpios in mctrl_gpio_init(). + As devm_* function are used, there's generally no need to call + this function. + +mctrl_gpio_set(gpios, mctrl): + This will sets the gpios according to the mctrl state. + +mctrl_gpio_get(gpios, mctrl): + This will update mctrl with the gpios values. diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index a3815eaed421..4fe8ca16f492 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1509,4 +1509,7 @@ config SERIAL_ST_ASC_CONSOLE endmenu +config SERIAL_MCTRL_GPIO + tristate + endif # TTY diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile index 3680854fef41..bcf31da267dd 100644 --- a/drivers/tty/serial/Makefile +++ b/drivers/tty/serial/Makefile @@ -87,3 +87,6 @@ obj-$(CONFIG_SERIAL_EFM32_UART) += efm32-uart.o obj-$(CONFIG_SERIAL_ARC) += arc_uart.o obj-$(CONFIG_SERIAL_RP2) += rp2.o obj-$(CONFIG_SERIAL_FSL_LPUART) += fsl_lpuart.o + +# GPIOLIB helpers for modem control lines +obj-$(CONFIG_SERIAL_MCTRL_GPIO) += serial_mctrl_gpio.o diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c new file mode 100644 index 000000000000..bd8e4a7c981c --- /dev/null +++ b/drivers/tty/serial/serial_mctrl_gpio.c @@ -0,0 +1,112 @@ +/* + * Helpers for controlling modem lines via GPIO + * + * Copyright (C) 2014 Paratronic S.A. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/device.h> +#include <linux/gpio/consumer.h> +#include <uapi/asm-generic/termios.h> + +#include "serial_mctrl_gpio.h" + +static const struct { + const char *name; + unsigned int mctrl; + bool dir_out; +} mctrl_gpios_desc[] = { + { "cts", TIOCM_CTS, false, }, + { "dsr", TIOCM_DSR, false, }, + { "dcd", TIOCM_CD, false, }, + { "ri", TIOCM_RI, false, }, + { "rts", TIOCM_RTS, true, }, + { "dtr", TIOCM_DTR, true, }, + { "out1", TIOCM_OUT1, true, }, + { "out2", TIOCM_OUT2, true, }, +}; + +void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl) +{ + enum mctrl_gpio_idx i; + + for (i = 0; i < UART_GPIO_MAX; i++) + if (!IS_ERR_OR_NULL(gpios->gpio[i]) && + mctrl_gpios_desc[i].dir_out) + gpiod_set_value(gpios->gpio[i], + !!(mctrl & mctrl_gpios_desc[i].mctrl)); +} +EXPORT_SYMBOL_GPL(mctrl_gpio_set); + +unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl) +{ + enum mctrl_gpio_idx i; + + for (i = 0; i < UART_GPIO_MAX; i++) { + if (!IS_ERR_OR_NULL(gpios->gpio[i]) && + !mctrl_gpios_desc[i].dir_out) { + if (gpiod_get_value(gpios->gpio[i])) + *mctrl |= mctrl_gpios_desc[i].mctrl; + else + *mctrl &= ~mctrl_gpios_desc[i].mctrl; + } + } + + return *mctrl; +} +EXPORT_SYMBOL_GPL(mctrl_gpio_get); + +int mctrl_gpio_init(struct device *dev, struct mctrl_gpios *gpios) +{ + enum mctrl_gpio_idx i; + int err = 0; + int ret = 0; + + for (i = 0; i < UART_GPIO_MAX; i++) { + gpios->gpio[i] = devm_gpiod_get(dev, mctrl_gpios_desc[i].name); + + /* + * The GPIOs are maybe not all filled, + * this is not an error. + */ + if (IS_ERR_OR_NULL(gpios->gpio[i])) + continue; + + if (mctrl_gpios_desc[i].dir_out) + err = gpiod_direction_output(gpios->gpio[i], 0); + else + err = gpiod_direction_input(gpios->gpio[i]); + if (err) { + dev_err(dev, "Unable to set direction for %s GPIO", + mctrl_gpios_desc[i].name); + devm_gpiod_put(dev, gpios->gpio[i]); + gpios->gpio[i] = NULL; + ret--; + } + } + + return ret; +} +EXPORT_SYMBOL_GPL(mctrl_gpio_init); + +void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios) +{ + enum mctrl_gpio_idx i; + + for (i = 0; i < UART_GPIO_MAX; i++) + if (!IS_ERR_OR_NULL(gpios->gpio[i])) { + devm_gpiod_put(dev, gpios->gpio[i]); + gpios->gpio[i] = NULL; + } +} +EXPORT_SYMBOL_GPL(mctrl_gpio_free); diff --git a/drivers/tty/serial/serial_mctrl_gpio.h b/drivers/tty/serial/serial_mctrl_gpio.h new file mode 100644 index 000000000000..e9797323d531 --- /dev/null +++ b/drivers/tty/serial/serial_mctrl_gpio.h @@ -0,0 +1,92 @@ +/* + * Helpers for controlling modem lines via GPIO + * + * Copyright (C) 2014 Paratronic S.A. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __SERIAL_MCTRL_GPIO__ +#define __SERIAL_MCTRL_GPIO__ + +#include <linux/gpio/consumer.h> + +enum mctrl_gpio_idx { + UART_GPIO_CTS, + UART_GPIO_DSR, + UART_GPIO_DCD, + UART_GPIO_RI, + UART_GPIO_RTS, + UART_GPIO_DTR, + UART_GPIO_OUT1, + UART_GPIO_OUT2, + UART_GPIO_MAX, +}; + +struct mctrl_gpios { + struct gpio_desc *gpio[UART_GPIO_MAX]; +}; + +#ifdef CONFIG_GPIOLIB + +/* + * Set state of the modem control output lines via GPIOs. + */ +void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl); + +/* + * Get state of the modem control output lines from GPIOs. + * The mctrl flags are updated and returned. + */ +unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl); + +/* + * Request and set direction of modem control lines GPIOs. + * devm_* functions are used, so there's no need to call mctrl_gpio_free(). + * Returns 0 if ok, -nb_err if setting direction failed. + */ +int mctrl_gpio_init(struct device *dev, struct mctrl_gpios *gpios); + +/* + * Free all modem control lines GPIOs. + * Normally, this function will not be called, as the GPIOs will + * be disposed of by the resource management code. + */ +void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios); + +#else /* GPIOLIB */ + +static inline +void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl) +{ +} + +static inline +unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl) +{ + return 0; +} + +static inline +int mctrl_gpio_init(struct device *dev, struct mctrl_gpios *gpios) +{ + return -UART_GPIO_MAX; +} + +static inline +void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios) +{ +} + +#endif /* GPIOLIB */ + +#endif -- 1.8.5
WARNING: multiple messages have this Message-ID (diff)
From: richard.genoud@gmail.com (Richard Genoud) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 1/7] tty/serial: Add GPIOLIB helpers for controlling modem lines Date: Mon, 17 Feb 2014 17:57:21 +0100 [thread overview] Message-ID: <1392656247-3351-2-git-send-email-richard.genoud@gmail.com> (raw) In-Reply-To: <1392656247-3351-1-git-send-email-richard.genoud@gmail.com> This patch add some helpers to control modem lines (CTS/RTS/DSR...) via GPIO. This will be useful for many boards which have a serial controller that only handle CTS/RTS pins (or even just RX/TX). Signed-off-by: Richard Genoud <richard.genoud@gmail.com> --- Documentation/serial/driver | 21 +++++++ drivers/tty/serial/Kconfig | 3 + drivers/tty/serial/Makefile | 3 + drivers/tty/serial/serial_mctrl_gpio.c | 112 +++++++++++++++++++++++++++++++++ drivers/tty/serial/serial_mctrl_gpio.h | 92 +++++++++++++++++++++++++++ 5 files changed, 231 insertions(+) create mode 100644 drivers/tty/serial/serial_mctrl_gpio.c create mode 100644 drivers/tty/serial/serial_mctrl_gpio.h diff --git a/Documentation/serial/driver b/Documentation/serial/driver index c3a7689a90e6..23aa32667d68 100644 --- a/Documentation/serial/driver +++ b/Documentation/serial/driver @@ -429,3 +429,24 @@ thus: struct uart_port port; int my_stuff; }; + +Modem control lines via GPIO +---------------------------- + +Some helpers are provided in order to set/get modem control lines via GPIO. + +mctrl_gpio_init(dev, gpios): + This will get the {cts,rts,...}-gpios from device tree if they are + present and request them, set direction etc. devm_* functions are + used, so there's no need to call mctrl_gpio_free(). + +mctrl_gpio_free(dev, gpios): + This will free the requested gpios in mctrl_gpio_init(). + As devm_* function are used, there's generally no need to call + this function. + +mctrl_gpio_set(gpios, mctrl): + This will sets the gpios according to the mctrl state. + +mctrl_gpio_get(gpios, mctrl): + This will update mctrl with the gpios values. diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index a3815eaed421..4fe8ca16f492 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1509,4 +1509,7 @@ config SERIAL_ST_ASC_CONSOLE endmenu +config SERIAL_MCTRL_GPIO + tristate + endif # TTY diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile index 3680854fef41..bcf31da267dd 100644 --- a/drivers/tty/serial/Makefile +++ b/drivers/tty/serial/Makefile @@ -87,3 +87,6 @@ obj-$(CONFIG_SERIAL_EFM32_UART) += efm32-uart.o obj-$(CONFIG_SERIAL_ARC) += arc_uart.o obj-$(CONFIG_SERIAL_RP2) += rp2.o obj-$(CONFIG_SERIAL_FSL_LPUART) += fsl_lpuart.o + +# GPIOLIB helpers for modem control lines +obj-$(CONFIG_SERIAL_MCTRL_GPIO) += serial_mctrl_gpio.o diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c new file mode 100644 index 000000000000..bd8e4a7c981c --- /dev/null +++ b/drivers/tty/serial/serial_mctrl_gpio.c @@ -0,0 +1,112 @@ +/* + * Helpers for controlling modem lines via GPIO + * + * Copyright (C) 2014 Paratronic S.A. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/device.h> +#include <linux/gpio/consumer.h> +#include <uapi/asm-generic/termios.h> + +#include "serial_mctrl_gpio.h" + +static const struct { + const char *name; + unsigned int mctrl; + bool dir_out; +} mctrl_gpios_desc[] = { + { "cts", TIOCM_CTS, false, }, + { "dsr", TIOCM_DSR, false, }, + { "dcd", TIOCM_CD, false, }, + { "ri", TIOCM_RI, false, }, + { "rts", TIOCM_RTS, true, }, + { "dtr", TIOCM_DTR, true, }, + { "out1", TIOCM_OUT1, true, }, + { "out2", TIOCM_OUT2, true, }, +}; + +void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl) +{ + enum mctrl_gpio_idx i; + + for (i = 0; i < UART_GPIO_MAX; i++) + if (!IS_ERR_OR_NULL(gpios->gpio[i]) && + mctrl_gpios_desc[i].dir_out) + gpiod_set_value(gpios->gpio[i], + !!(mctrl & mctrl_gpios_desc[i].mctrl)); +} +EXPORT_SYMBOL_GPL(mctrl_gpio_set); + +unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl) +{ + enum mctrl_gpio_idx i; + + for (i = 0; i < UART_GPIO_MAX; i++) { + if (!IS_ERR_OR_NULL(gpios->gpio[i]) && + !mctrl_gpios_desc[i].dir_out) { + if (gpiod_get_value(gpios->gpio[i])) + *mctrl |= mctrl_gpios_desc[i].mctrl; + else + *mctrl &= ~mctrl_gpios_desc[i].mctrl; + } + } + + return *mctrl; +} +EXPORT_SYMBOL_GPL(mctrl_gpio_get); + +int mctrl_gpio_init(struct device *dev, struct mctrl_gpios *gpios) +{ + enum mctrl_gpio_idx i; + int err = 0; + int ret = 0; + + for (i = 0; i < UART_GPIO_MAX; i++) { + gpios->gpio[i] = devm_gpiod_get(dev, mctrl_gpios_desc[i].name); + + /* + * The GPIOs are maybe not all filled, + * this is not an error. + */ + if (IS_ERR_OR_NULL(gpios->gpio[i])) + continue; + + if (mctrl_gpios_desc[i].dir_out) + err = gpiod_direction_output(gpios->gpio[i], 0); + else + err = gpiod_direction_input(gpios->gpio[i]); + if (err) { + dev_err(dev, "Unable to set direction for %s GPIO", + mctrl_gpios_desc[i].name); + devm_gpiod_put(dev, gpios->gpio[i]); + gpios->gpio[i] = NULL; + ret--; + } + } + + return ret; +} +EXPORT_SYMBOL_GPL(mctrl_gpio_init); + +void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios) +{ + enum mctrl_gpio_idx i; + + for (i = 0; i < UART_GPIO_MAX; i++) + if (!IS_ERR_OR_NULL(gpios->gpio[i])) { + devm_gpiod_put(dev, gpios->gpio[i]); + gpios->gpio[i] = NULL; + } +} +EXPORT_SYMBOL_GPL(mctrl_gpio_free); diff --git a/drivers/tty/serial/serial_mctrl_gpio.h b/drivers/tty/serial/serial_mctrl_gpio.h new file mode 100644 index 000000000000..e9797323d531 --- /dev/null +++ b/drivers/tty/serial/serial_mctrl_gpio.h @@ -0,0 +1,92 @@ +/* + * Helpers for controlling modem lines via GPIO + * + * Copyright (C) 2014 Paratronic S.A. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __SERIAL_MCTRL_GPIO__ +#define __SERIAL_MCTRL_GPIO__ + +#include <linux/gpio/consumer.h> + +enum mctrl_gpio_idx { + UART_GPIO_CTS, + UART_GPIO_DSR, + UART_GPIO_DCD, + UART_GPIO_RI, + UART_GPIO_RTS, + UART_GPIO_DTR, + UART_GPIO_OUT1, + UART_GPIO_OUT2, + UART_GPIO_MAX, +}; + +struct mctrl_gpios { + struct gpio_desc *gpio[UART_GPIO_MAX]; +}; + +#ifdef CONFIG_GPIOLIB + +/* + * Set state of the modem control output lines via GPIOs. + */ +void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl); + +/* + * Get state of the modem control output lines from GPIOs. + * The mctrl flags are updated and returned. + */ +unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl); + +/* + * Request and set direction of modem control lines GPIOs. + * devm_* functions are used, so there's no need to call mctrl_gpio_free(). + * Returns 0 if ok, -nb_err if setting direction failed. + */ +int mctrl_gpio_init(struct device *dev, struct mctrl_gpios *gpios); + +/* + * Free all modem control lines GPIOs. + * Normally, this function will not be called, as the GPIOs will + * be disposed of by the resource management code. + */ +void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios); + +#else /* GPIOLIB */ + +static inline +void mctrl_gpio_set(struct mctrl_gpios *gpios, unsigned int mctrl) +{ +} + +static inline +unsigned int mctrl_gpio_get(struct mctrl_gpios *gpios, unsigned int *mctrl) +{ + return 0; +} + +static inline +int mctrl_gpio_init(struct device *dev, struct mctrl_gpios *gpios) +{ + return -UART_GPIO_MAX; +} + +static inline +void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios) +{ +} + +#endif /* GPIOLIB */ + +#endif -- 1.8.5
next prev parent reply other threads:[~2014-02-17 16:58 UTC|newest] Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-02-17 16:57 [PATCH v3 0/7] tty/serial: Add helpers to use GPIOs to control modem lines and implement atmel_serial.c Richard Genoud 2014-02-17 16:57 ` Richard Genoud 2014-02-17 16:57 ` Richard Genoud [this message] 2014-02-17 16:57 ` [PATCH v3 1/7] tty/serial: Add GPIOLIB helpers for controlling modem lines Richard Genoud 2014-02-17 18:37 ` Alexander Shiyan 2014-02-17 18:37 ` Alexander Shiyan 2014-02-18 9:59 ` Richard Genoud 2014-02-18 9:59 ` Richard Genoud 2014-02-18 15:26 ` Alexander Shiyan 2014-02-18 15:26 ` Alexander Shiyan 2014-02-20 11:20 ` Richard Genoud 2014-02-20 11:20 ` Richard Genoud 2014-02-17 16:57 ` [PATCH v3 2/7] tty/serial: at91: use dev_err instead of printk Richard Genoud 2014-02-17 16:57 ` Richard Genoud 2014-02-17 16:57 ` [PATCH v3 3/7] tty/serial: at91: remove unused open/close hooks Richard Genoud 2014-02-17 16:57 ` Richard Genoud 2014-02-17 16:57 ` [PATCH v3 4/7] tty/serial: at91: use mctrl_gpio helpers Richard Genoud 2014-02-17 16:57 ` Richard Genoud 2014-02-18 15:04 ` Alexander Shiyan 2014-02-18 15:04 ` Alexander Shiyan 2014-02-18 15:09 ` Richard Genoud 2014-02-18 15:09 ` Richard Genoud 2014-02-17 16:57 ` [PATCH v3 5/7] ARM: at91: gpio: implement get_direction Richard Genoud 2014-02-17 16:57 ` Richard Genoud 2014-02-24 14:42 ` Linus Walleij 2014-02-24 14:42 ` Linus Walleij 2014-02-17 16:57 ` [PATCH v3 6/7] pinctrl: at91: " Richard Genoud 2014-02-17 16:57 ` Richard Genoud 2014-02-24 14:44 ` Linus Walleij 2014-02-24 14:44 ` Linus Walleij 2014-02-24 14:56 ` Richard Genoud 2014-02-24 14:56 ` Richard Genoud 2014-02-25 9:34 ` Linus Walleij 2014-02-25 9:34 ` Linus Walleij 2014-02-17 16:57 ` [PATCH v3 7/7] tty/serial: at91: add interrupts for modem control lines Richard Genoud 2014-02-17 16:57 ` Richard Genoud 2014-02-17 17:53 ` [PATCH v3 0/7] tty/serial: Add helpers to use GPIOs to control modem lines and implement atmel_serial.c Alexander Shiyan 2014-02-17 17:53 ` Alexander Shiyan 2014-02-18 9:59 ` Richard Genoud 2014-02-18 9:59 ` Richard Genoud
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1392656247-3351-2-git-send-email-richard.genoud@gmail.com \ --to=richard.genoud@gmail.com \ --cc=gregkh@linuxfoundation.org \ --cc=linus.walleij@linaro.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-serial@vger.kernel.org \ --cc=nicolas.ferre@atmel.com \ --cc=shc_work@mail.ru \ --cc=u.kleine-koenig@pengutronix.de \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.