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path: root/drivers/power/reset/syscon-poweroff.c
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2024-02-13power: reset: syscon-poweroff: Use devm_register_sys_off_handler(POWER_OFF)Andrew Davis
Use device life-cycle managed register function to simplify probe and exit paths. This also makes our data struct per-device and not global, which allows for more than one instance of this device. Signed-off-by: Andrew Davis <afd@ti.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240212162831.67838-20-afd@ti.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2024-02-13power: reset: syscon-poweroff: Move device data into a structAndrew Davis
Currently all these device data elements are top level global variables. Move these into a struct. This will be used in the next patch when the global variable usage is removed. Doing this in two steps makes the patches easier to read. Signed-off-by: Andrew Davis <afd@ti.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240212162831.67838-19-afd@ti.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2023-11-15power: reset: syscon-poweroff: Convert to platform remove callback returning ↵Uwe Kleine-König
void The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20231104211501.3676352-29-u.kleine-koenig@pengutronix.de Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2023-09-12power: reset: syscon-poweroff: get regmap from parent nodeKrzysztof Kozlowski
Just like syscon-reboot device, the syscon-poweroff is supposed to be a child of syscon node, thus we can take the same approach as syscon-poweroff: deprecate the 'regmap' field in favor of taking it from the parent's node. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230901120057.47018-3-krzysztof.kozlowski@linaro.org Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2023-09-12power: reset: syscon-poweroff: simplify pdev->dev usageKrzysztof Kozlowski
Make the probe() code a bit simpler and shorter by storing all the '&pdev->dev' as 'dev'. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230901120057.47018-2-krzysztof.kozlowski@linaro.org Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2023-09-12power: reset: syscon-poweroff: use builtin_platform_driver() to simplify codeYang Yingliang
The syscon_poweroff_register() doesn't do anything special, so it can use the builtin_platform_driver() macro to eliminate boilerplate code. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20230807131951.3443880-6-yangyingliang@huawei.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2023-07-19power: Explicitly include correct DT includesRob Herring
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: David Lechner <david@lechnology.com> Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-11-30power: reset: Use printk format symbol resolverHelge Deller
Instead of looking up a symbol name by hand, use the %ps printk format specifier. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner
Based on 3 normalized pattern(s): 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 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 [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-14power: reset: syscon-poweroff: add a mask propertyGuy Shapiro
Make the syscon-poweroff driver accept value and mask instead of just value. Prior to this patch, the property name for the value was 'mask'. If only the mask property is defined on a node, maintain compatibility by using it as the value. Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2016-06-10power/reset: make syscon_poweroff() staticBen Dooks
The syscon_poweroff() function is not exported or declared for usage elsewhere, so make it static to avoid the folloiwing warning: drivers/power/reset/syscon-poweroff.c:33:6: warning: symbol 'syscon_poweroff' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-04-06power: reset: Add generic SYSCON register mapped poweroff.Moritz Fischer
Add a generic SYSCON register mapped poweroff mechanism. Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>