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path: root/drivers/soc/loongson/loongson2_guts.c
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2024-11-01soc: Switch back to struct platform_driver::remove()Uwe Kleine-König
After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/soc to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. On the way do a few whitespace changes to make indention consistent. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Herve Codina <herve.codina@bootlin.com> # for fsl/qe/{qmc,tsa}.c Acked-by: Bjorn Andersson <andersson@kernel.org> # qcom parts Acked-by: Gabriel Somlo <gsomlo@gmail.com> Acked-by: Andrew Jeffery <andrew@codeconstruct.com.au> # aspeed Link: https://lore.kernel.org/r/20241029074859.509587-2-u.kleine-koenig@baylibre.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-10-16Merge tag 'platform-remove-void-soc-for-6.7-rc' of ↵Arnd Bergmann
https://git.pengutronix.de/git/ukl/linux into soc/drivers Convert drivers/soc to struct platform_driver::remove_new() This PR contains the patches I sent in the series available at https://lore.kernel.org/all/20230925095532.1984344-1-u.kleine-koenig@pengutronix.de that were not yet picked up in next as of next-20231013. It converts all drivers below drivers/soc to let their remove callback return void. See commit 5c5a7680e67b ("platform: Provide a remove callback that returns no value") for the rationale. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-10-14soc/loongson: loongson2_guts: Convert to platform remove callback returning voidUwe Kleine-König
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. Link: https://lore.kernel.org/r/20230925095532.1984344-14-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2023-09-27soc: loongson: loongson2_guts: Remove unneeded semicolonMingtong Bao
No functional modification involved. ./drivers/soc/loongson/loongson2_guts.c:73:2-3: Unneeded semicolon. Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Mingtong Bao <baomingtong001@208suo.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-09-27soc: loongson: loongson2_guts: Convert to devm_platform_ioremap_resource()Dongliang Mu
Use devm_platform_ioremap_resource() to simplify code. Signed-off-by: Dongliang Mu <dzm91@hust.edu.cn> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-11-14soc: loongson: add GUTS driver for loongson-2 platformsYinbo Zhu
The global utilities block controls PCIE device enabling, alternate function selection for multiplexed signals, consistency of HDA, USB and PCIE, configuration of memory controller, rtc controller, lio controller, and clock control. This patch adds a driver to manage and access global utilities block for LoongArch architecture Loongson-2 SoCs. Initially only reading SVR and registering soc device are supported. Other guts accesses, such as reading firmware configuration by default, should eventually be added into this driver as well. Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>