From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kRjZb-0004xv-Kp for barebox@lists.infradead.org; Sun, 11 Oct 2020 22:12:13 +0000 From: Ahmad Fatoum Date: Mon, 12 Oct 2020 00:11:55 +0200 Message-Id: <20201011221200.9023-6-a.fatoum@pengutronix.de> In-Reply-To: <20201011221200.9023-1-a.fatoum@pengutronix.de> References: <20201011221200.9023-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 06/11] sandbox: poweroff: migrate to driver probed from device tree To: barebox@lists.infradead.org Cc: Ahmad Fatoum Follow-up will extend the poweroff driver to support system reset source. Set the stage by renaming the driver to power (as it does reset as well) and make it probe from device tree, so it can point at the system reset source syscon via phandle. Signed-off-by: Ahmad Fatoum --- arch/sandbox/board/Makefile | 2 +- arch/sandbox/board/power.c | 61 +++++++++++++++++++++++++++++++++++ arch/sandbox/board/poweroff.c | 42 ------------------------ arch/sandbox/dts/sandbox.dts | 4 +++ 4 files changed, 66 insertions(+), 43 deletions(-) create mode 100644 arch/sandbox/board/power.c delete mode 100644 arch/sandbox/board/poweroff.c diff --git a/arch/sandbox/board/Makefile b/arch/sandbox/board/Makefile index 26f6cb192269..e50d2ca0f148 100644 --- a/arch/sandbox/board/Makefile +++ b/arch/sandbox/board/Makefile @@ -4,7 +4,7 @@ obj-y += hostfile.o obj-y += console.o obj-y += devices.o obj-y += dtb.o -obj-y += poweroff.o +obj-y += power.o obj-y += dev-random.o extra-y += barebox.lds diff --git a/arch/sandbox/board/power.c b/arch/sandbox/board/power.c new file mode 100644 index 000000000000..ffd8692845ef --- /dev/null +++ b/arch/sandbox/board/power.c @@ -0,0 +1,61 @@ +#include +#include +#include +#include +#include +#include + +struct sandbox_power { + struct restart_handler rst_hang, rst_reexec; +}; + +static void sandbox_poweroff(struct poweroff_handler *poweroff) +{ + linux_exit(); +} + +static void sandbox_rst_hang(struct restart_handler *rst) +{ + linux_hang(); +} + +static void sandbox_rst_reexec(struct restart_handler *rst) +{ + linux_reexec(); +} + +static int sandbox_power_probe(struct device_d *dev) +{ + struct sandbox_power *power = xzalloc(sizeof(*power)); + + poweroff_handler_register_fn(sandbox_poweroff); + + power->rst_hang = (struct restart_handler) { + .name = "hang", + .restart = sandbox_rst_hang + }; + + power->rst_reexec = (struct restart_handler) { + .name = "reexec", .priority = 200, + .restart = sandbox_rst_reexec, + }; + + restart_handler_register(&power->rst_hang); + + if (IS_ENABLED(CONFIG_SANDBOX_REEXEC)) + restart_handler_register(&power->rst_reexec); + + return 0; +} + +static __maybe_unused struct of_device_id sandbox_power_dt_ids[] = { + { .compatible = "barebox,sandbox-power" }, + { /* sentinel */ } +}; + +static struct driver_d sandbox_power_drv = { + .name = "sandbox-power", + .of_compatible = sandbox_power_dt_ids, + .probe = sandbox_power_probe, +}; +coredevice_platform_driver(sandbox_power_drv); diff --git a/arch/sandbox/board/poweroff.c b/arch/sandbox/board/poweroff.c deleted file mode 100644 index 8ce739af72c1..000000000000 --- a/arch/sandbox/board/poweroff.c +++ /dev/null @@ -1,42 +0,0 @@ -#include -#include -#include -#include -#include - -static void sandbox_poweroff(struct poweroff_handler *poweroff) -{ - linux_exit(); -} - -static void sandbox_rst_hang(struct restart_handler *rst) -{ - linux_hang(); -} - -static struct restart_handler rst_hang = { - .name = "hang", - .restart = sandbox_rst_hang -}; - -static void sandbox_rst_reexec(struct restart_handler *rst) -{ - linux_reexec(); -} - -static struct restart_handler rst_reexec = { - .name = "reexec", .priority = 200, - .restart = sandbox_rst_reexec, -}; - -static int poweroff_register_feature(void) -{ - poweroff_handler_register_fn(sandbox_poweroff); - restart_handler_register(&rst_hang); - - if (IS_ENABLED(CONFIG_SANDBOX_REEXEC)) - restart_handler_register(&rst_reexec); - - return 0; -} -coredevice_initcall(poweroff_register_feature); diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts index afca02d41014..d32999292eb3 100644 --- a/arch/sandbox/dts/sandbox.dts +++ b/arch/sandbox/dts/sandbox.dts @@ -37,4 +37,8 @@ }; }; }; + + power { + compatible = "barebox,sandbox-power"; + }; }; -- 2.28.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox