kernel.git/drivers/regulator/stm32-vrefbuf.c, branch linux-5.18.y

regulator: stm32-vrefbuf: Fix W=1 build warning when CONFIG_OF=n

2020-08-21T16:28:18Z

Fix below warning when CONFIG_OF=n: drivers/regulator/stm32-vrefbuf.c:287:34: warning: ‘stm32_vrefbuf_of_match’ defined but not used [-Wunused-const-variable=] 287 | static const struct of_device_id stm32_vrefbuf_of_match[] = { | ^~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Jisheng Zhang Acked-by: Fabrice Gasnier Link: https://lore.kernel.org/r/20200821111755.4c461039@xhacker.debian Signed-off-by: Mark Brown

regulator: stm32-vrefbuf: fix a possible overshoot when re-enabling

2020-03-04T13:57:28Z

There maybe an overshoot, when disabling, then re-enabling vrefbuf too quickly. VREFBUF is used by ADC/DAC on some boards. When re-enabling too quickly, an overshoot on the reference voltage make the conversions inaccurate for a short period of time. - Don't put the VREFBUF in HiZ when disabling, to force an active discharge. - Enforce a 1ms OFF/ON delay Fixes: 0cdbf481e927 ("regulator: Add support for stm32-vrefbuf") Signed-off-by: Fabrice Gasnier Message-Id: <1583312132-20932-1-git-send-email-fabrice.gasnier@st.com> Signed-off-by: Mark Brown

regulator: stm32-vrefbuf: use devm_platform_ioremap_resource() to simplify code

2019-10-09T17:16:56Z

Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Signed-off-by: YueHaibing Link: https://lore.kernel.org/r/20191009150138.11640-1-yuehaibing@huawei.com Signed-off-by: Mark Brown

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194

2019-05-30T18:29:22Z

Based on 1 normalized pattern(s): license terms gnu general public license gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 161 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Reviewed-by: Steve Winslow Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.447718015@linutronix.de Signed-off-by: Greg Kroah-Hartman

regulator: stm32-vrefbuf: add power management support

2019-02-28T14:20:48Z

Add support for suspend/resume and runtime PM to stm32-vrefbuf driver. Signed-off-by: Fabrice Gasnier Signed-off-by: Mark Brown

regulator: stm32-vrefbuf: fix check on ready flag

2018-02-08T15:28:35Z

stm32_vrefbuf_enable() wrongly checks VRR bit: 0 stands for not ready, 1 for ready. It currently checks the opposite. This makes enable routine to exit immediately without waiting for ready flag. Fixes: 0cdbf481e927 ("regulator: Add support for stm32-vrefbuf") Signed-off-by: Fabrice Gasnier Signed-off-by: Mark Brown Cc: stable@vger.kernel.org

regulator: Add support for stm32-vrefbuf

2017-08-30T17:28:35Z

Add regulator driver for STM32 voltage reference buffer which can be used as voltage reference for ADCs, DACs and external components through dedicated VREF+ pin. Signed-off-by: Fabrice Gasnier Signed-off-by: Mark Brown