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* driver: replace dev_request_mem_region with dev_request_mem_resourceSascha Hauer2016-03-071-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_request_mem_region doesn't work properly one some SoCs on which PTR_ERR() values clash with valid return values from dev_request_mem_region. Replace them with dev_request_mem_resource where possible. This patch has been generated with the following semantic patch: // <smpl> @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) { ... - return PTR_ERR(io); -} + return PTR_ERR(iores); +} +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) - return PTR_ERR(io); -} + return PTR_ERR(iores); +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); -if (IS_ERR(io)) { - ret = PTR_ERR(io); +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) { + ret = PTR_ERR(iores); ... } +io = IOMEM(iores->start); ...+> } @@ expression d; expression n; expression io; identifier func; @@ func(...) { +struct resource *iores; <+... -io = dev_request_mem_region(d, n); +iores = dev_request_mem_resource(d, n); +if (IS_ERR(iores)) + return PTR_ERR(iores); +io = IOMEM(iores->start); ...+> } @@ identifier func; @@ func(...) { <+... struct resource *iores; -struct resource *iores; ...+> } // </smpl> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* watchdog: Give watchdogs a nameSascha Hauer2015-08-271-0/+1
| | | | | | | This adds a dev and name member to struct watchdog which helps distinguishing between different watchdogs. Also add some debugging aids. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM/MXS/i.MX28: recognize watchdog resetSteffen Trumtrar2015-03-301-0/+7
| | | | | | | | | | | When a watchdog timeout is set in the linux kernel, the FORCE_UPDATE bit is set. Use this to recognize a system reset that was triggered by the watchdog. Since only the wdt part of the kernel driver sets this bit, this is a safe distinguishing feature. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* resource: Let dev_request_mem_region return an error pointerSascha Hauer2014-09-161-0/+3
| | | | | | For all users fix or add the error check. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* reset_source: rename set_reset_source to reset_source_setSascha Hauer2014-01-291-4/+4
| | | | | | | To get all reset source related functions into the same function namespace. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM/MXS: add more ROM code related documentationJuergen Beisert2013-04-091-1/+74
| | | | | | | | | | | Commit 17176c2e2bba606190d9ae51943acb5701063573 adds a test of a new RTC register flag to distinguish a system reset and a wake up event. Shame on me, I have forgotten to define the newly used flag yet. While already here, I also try to document the other flags the RTC provides. Signed-off-by: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Use new device_platform_driver() macro for driversAlexander Shiyan2013-02-131-8/+1
| | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM/MXS/i.MX28: distinguish POR and wake-up event correctlyJuergen Beisert2012-12-031-0/+11
| | | | | | | | | | | When the built-in RTC in the i.MX28 is programmed to wake-up the SoC, the RTC reports two events: RST and WAKE. RST is okay in this case, because the PMIC was really powered down. But the real event is the WAKE from the RTC and should have precedence over the RST event. So, report the WAKE event for this special case. Signed-off-by: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* switch all platform_bus device/driver registering to ↵Jean-Christophe PLAGNIOL-VILLARD2012-10-041-1/+1
| | | | | | | | platform_driver/device_register now register_driver and register_device are for bus only usage. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* ARM/MXS: add reset cause detectionJuergen Beisert2012-07-181-0/+25
| | | | | Signed-off-by: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM/MXS: add a watchdog driver for i.MX28Juergen Beisert2012-06-291-0/+124
Signed-off-by: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-19 01:18:39 +0000