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* watchdog: pic32-wdt: Convert to use device managed functions and other ↵Guenter Roeck2019-05-051-34/+24
| | | | | | | | | | | | | | | | | | | | | | | improvements Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. Other improvements as listed below. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Drop assignments to otherwise unused variables - Drop empty remove function - Use devm_add_action_or_reset() for calls to clk_disable_unprepare - Introduce local variable 'struct device *dev' and use it instead of dereferencing it repeatedly - Use devm_watchdog_register_driver() to register watchdog device Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
* watchdog: Convert to use devm_platform_ioremap_resourceGuenter Roeck2019-05-051-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use devm_platform_ioremap_resource to reduce source code size, improve readability, and reduce the likelyhood of bugs. The conversion was done automatically with coccinelle using the following semantic patch. @r@ identifier res, pdev; expression a; expression index; expression e; @@ <+... - res = platform_get_resource(pdev, IORESOURCE_MEM, index); - a = devm_ioremap_resource(e, res); + a = devm_platform_ioremap_resource(pdev, index); ...+> @depends on r@ identifier r.res; @@ - struct resource *res; ... when != res @@ identifier res, pdev; expression index; expression a; @@ - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, index); - a = devm_ioremap_resource(&pdev->dev, res); + a = devm_platform_ioremap_resource(pdev, index); Cc: Joel Stanley <joel@jms.id.au> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Baruch Siach <baruch@tkos.co.il> Cc: Keguang Zhang <keguang.zhang@gmail.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Avi Fishman <avifishman70@gmail.com> Cc: Nancy Yuen <yuenn@google.com> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Barry Song <baohua@kernel.org> Cc: Orson Zhai <orsonzhai@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Marc Gonzalez <marc.w.gonzalez@free.fr> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Acked-by: Michal Simek <michal.simek@xilinx.com> (cadence/xilinx wdts) Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
* watchdog: pic32-wdt: Fix return value check in pic32_wdt_drv_probe()Wei Yongjun2016-07-251-2/+2
| | | | | | | | | | | In case of error, the function devm_ioremap() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: pic32-wdt: Remove .owner field for driverWei Yongjun2016-07-251-1/+0
| | | | | | | | | | | Remove .owner field if calls are used which set it automatically. Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: pic32-wdt: Fix return value check in pic32_wdt_drv_probe()Wei Yongjun2016-07-171-2/+2
| | | | | | | | | | | In case of error, the function devm_kzalloc() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* watchdog: pic32-wdt: Add PIC32 watchdog driverJoshua Henderson2016-05-131-0/+263
Add support for the watchdog peripheral found on PIC32 class devices. Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com> Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12701/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>