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path: root/drivers/regulator/rt4801-regulator.c
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2023-03-20regulator: Set PROBE_PREFER_ASYNCHRONOUS for drivers between 5.4 and 5.10Gravatar Douglas Anderson 1-0/+1
This follows on the change ("regulator: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in 4.14") but changes regulators didn't exist in Linux 5.4 but did exist in Linux 5.10. Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20230316125351.4.I01f21c98901641a009890590ddc1354c0f294e5e@changeid Signed-off-by: Mark Brown <broonie@kernel.org>
2022-04-25regulator: richtek,rt4801: parse GPIOs per regulatorGravatar Krzysztof Kozlowski 1-11/+38
Having one enable-gpios property for all regulators is discouraged and instead, similarly to regulator core ena_gpiod feature, each GPIO should be present in each regulator node. Add support for parsing such GPIOs, keeping backwards compatibility. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Tested-by: ChiYuan Huang <cy_huang@richtek.com> Link: https://lore.kernel.org/r/20220425072455.27356-3-krzysztof.kozlowski@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-03regulator: rt4801: Fix NULL pointer dereference if priv->enable_gpios is NULLGravatar Axel Lin 1-2/+2
devm_gpiod_get_array_optional may return NULL if no GPIO was assigned. Signed-off-by: Axel Lin <axel.lin@ingics.com> Link: https://lore.kernel.org/r/20210603094944.1114156-1-axel.lin@ingics.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-24regulator: rt4801: Fix W=1 build warning when CONFIG_OF=nGravatar ChiYuan Huang 1-1/+1
Fix below warning when CONFIG_OF=n: drivers/regulator/rt4801-regulator.c:206:34: warning: unused variable 'rt4801_of_id' [-Wunused-const-variable] 206 | static const struct of_device_id rt4801_of_id[] = { | ^~~~~~~~~~~~ Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/1598234713-8532-1-git-send-email-u0084500@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-18regulator: rt4801: Add support for RT4801 Display Bias regulator driverGravatar ChiYuan Huang 1-0/+223
Adds support for the RT4801 DSV. It has two regulators (DSVP/DSVN) with an I2C interface. DSVP/DSVN can provide the display panel module for the positive/negative voltage range from (+/-)4V to (+/-)6V. Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Link: https://lore.kernel.org/r/1597461262-25878-1-git-send-email-u0084500@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>