linux-toradex.git/drivers/watchdog, branch v3.18-rc5 Linux kernel for Apalis and Colibri modules watchdog: meson: remove magic value for reboot 2014-10-20T19:09:17+00:00 Carlo Caione carlo@caione.org 2014-10-09T19:59:16+00:00 06980b24cf9bfcc753a07ee362976169bb869869 This patch removes the magic value used for rebooting the board. This value is useless and leads to a static checker warning as reported by Dan Carpenter. Signed-off-by: Carlo Caione <carlo@caione.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 
This patch removes the magic value used for rebooting the board. This
value is useless and leads to a static checker warning as reported by
Dan Carpenter.

Signed-off-by: Carlo Caione <carlo@caione.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
watchdog: Let XILINX_WATCHDOG and TEGRA_WATCHDOG depend on HAS_IOMEM 2014-10-20T19:08:53+00:00 Chen Gang gang.chen.5i5j@gmail.com 2014-10-05T01:28:33+00:00 71fd380a6b87f384002feceda39fd670ede7ea5f They need HAS_IOMEM, so let them depend on it, the related error (with allmodconfig under um): MODPOST 1205 modules ERROR: "devm_ioremap_resource" [drivers/watchdog/tegra_wdt.ko] undefined! ERROR: "devm_ioremap_resource" [drivers/watchdog/of_xilinx_wdt.ko] undefined! Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 
They need HAS_IOMEM, so let them depend on it, the related error (with
allmodconfig under um):

    MODPOST 1205 modules
  ERROR: "devm_ioremap_resource" [drivers/watchdog/tegra_wdt.ko] undefined!
  ERROR: "devm_ioremap_resource" [drivers/watchdog/of_xilinx_wdt.ko] undefined!

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
watchdog: sunxi: Add A31 watchdog support 2014-10-20T19:07:14+00:00 Chen-Yu Tsai wens@csie.org 2014-09-21T16:05:19+00:00 c5ec618fbf83045b9d51679d809ddd45f990fe0a This patch adds support for the watchdog hardware found in A31 and newer SoCs. This new hardware has registers at different offsets, and the system reset control has been split out of the "mode" register into a new "configuration" register. Differences not supported by this driver include separate interrupt lines for each watchdog, instead of sharing an interrupt line and registers with the timer block. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 
This patch adds support for the watchdog hardware found in A31 and
newer SoCs. This new hardware has registers at different offsets, and
the system reset control has been split out of the "mode" register
into a new "configuration" register.

Differences not supported by this driver include separate interrupt
lines for each watchdog, instead of sharing an interrupt line and
registers with the timer block.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
watchdog: sunxi: support parameterized compatible strings 2014-10-20T19:06:59+00:00 Chen-Yu Tsai wens@csie.org 2014-09-21T16:05:18+00:00 f2147de334703c7c44372f013d7d466d756e6943 This patch adds support for hardware parameters tied to compatible strings, so similar hardware can reuse the driver. This will be used to support the newer watchdog found in A31 and later SoCs. Differences in the new hardware include separate interrupt lines for each watchdog, and corresponding interrupt control/status registers. Watchdog control registers were also slightly rearranged. Also replace ioread32()/iowrite32() with readl()/writel() in various places changed. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
This patch adds support for hardware parameters tied to compatible
strings, so similar hardware can reuse the driver.

This will be used to support the newer watchdog found in A31 and
later SoCs. Differences in the new hardware include separate
interrupt lines for each watchdog, and corresponding interrupt
control/status registers. Watchdog control registers were also
slightly rearranged.

Also replace ioread32()/iowrite32() with readl()/writel() in various
places changed.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
watchdog: imx2_wdt: add restart handler support 2014-10-20T19:04:50+00:00 Jingchang Lu jingchang.lu@freescale.com 2014-09-12T07:24:36+00:00 334a9d8131254e06685b2af0c0f3cc7b3ec5bd04 Register the watchdog as the system restart function to the new introducing kernel restart call chain in the driver instead of providing the restart in machine desc. This restart handler function is from the mxc_restart() in arch/arm/mach-imx/system.c Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 
  Register the watchdog as the system restart function
to the new introducing kernel restart call chain in the
driver instead of providing the restart in machine desc.
  This restart handler function is from the mxc_restart()
in arch/arm/mach-imx/system.c

Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
watchdog: qcom: register a restart notifier 2014-10-20T19:04:19+00:00 Josh Cartwright joshc@codeaurora.org 2014-09-25T22:51:04+00:00 05e487d905ab29b5756d6d1e47e27eefa6693fb3 The WDT's BITE_TIME warm-reset behavior can be leveraged as a last resort mechanism for triggering chip reset. Usually, other restart methods (such as PS_HOLD) are preferrable for issuing a more complete reset of the chip. As such, keep the priority of the watchdog notifier low. Signed-off-by: Josh Cartwright <joshc@codeaurora.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 
The WDT's BITE_TIME warm-reset behavior can be leveraged as a last
resort mechanism for triggering chip reset.  Usually, other restart
methods (such as PS_HOLD) are preferrable for issuing a more complete
reset of the chip.  As such, keep the priority of the watchdog notifier
low.

Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
watchdog: s3c2410: add restart handler 2014-10-20T19:03:37+00:00 Heiko Stuebner heiko@sntech.de 2014-08-20T00:45:36+00:00 f286e1335f579dfd970c7fc3f62b248773a47a5c On a lot of Samsung systems the watchdog is responsible for restarting the system and until now this code was contained in plat-samsung/watchdog-reset.c. With the introduction of the restart handlers, this code can now move into driver itself, removing the need for arch-specific code. Tested on a S3C2442 based GTA02 Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 
On a lot of Samsung systems the watchdog is responsible for restarting the
system and until now this code was contained in plat-samsung/watchdog-reset.c.

With the introduction of the restart handlers, this code can now move into
driver itself, removing the need for arch-specific code.

Tested on a S3C2442 based GTA02

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
watchdog: dw_wdt: add restart handler support 2014-10-20T19:03:06+00:00 Jisheng Zhang jszhang@marvell.com 2014-09-23T07:42:12+00:00 31228f43ab528628c9b5f1351604361aa1d78533 The kernel core now provides an API to trigger a system restart. Register with it to support restarting the system via. watchdog. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 
The kernel core now provides an API to trigger a system restart.
Register with it to support restarting the system via. watchdog.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
ARM: meson: add watchdog driver 2014-10-20T18:57:16+00:00 Carlo Caione carlo@caione.org 2014-09-20T17:06:50+00:00 22e1b8f60f913cf71e688af9b64317b515303f4c This patch adds the watchdog driver for the Amlogic Meson SoCs used also to reboot the device. Signed-off-by: Carlo Caione <carlo@caione.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 
This patch adds the watchdog driver for the Amlogic Meson SoCs used also
to reboot the device.

Signed-off-by: Carlo Caione <carlo@caione.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
stmp3xxx_rtc_wdt: Add suspend/resume PM support 2014-10-20T18:55:54+00:00 Janusz Uzycki j.uzycki@elproma.com.pl 2014-09-22T20:55:47+00:00 3281b85c8697938e344d67144ca8ba520fa54d2b There is no conflict with rtc/rtc-stmp3xxx.c parent because modified registers in PM functions of stmp3xxx_rtc_wdt are different. Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> 
There is no conflict with rtc/rtc-stmp3xxx.c parent
because modified registers in PM functions of stmp3xxx_rtc_wdt
are different.

Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>