Patch "regulator: stm32-vrefbuf: fix check on ready flag" has been added to the 4.14-stable tree

Patch "regulator: stm32-vrefbuf: fix check on ready flag" has been added to the 4.14-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    regulator: stm32-vrefbuf: fix check on ready flag

to the 4.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     regulator-stm32-vrefbuf-fix-check-on-ready-flag.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From f63248fac563125fd5a2f0bc780ce7a299872cab Mon Sep 17 00:00:00 2001
From: Fabrice Gasnier <fabrice.gasnier@st.com>
Date: Thu, 8 Feb 2018 14:43:05 +0100
Subject: regulator: stm32-vrefbuf: fix check on ready flag

From: Fabrice Gasnier <fabrice.gasnier@st.com>

commit f63248fac563125fd5a2f0bc780ce7a299872cab upstream.

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 <fabrice.gasnier@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/regulator/stm32-vrefbuf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/regulator/stm32-vrefbuf.c
+++ b/drivers/regulator/stm32-vrefbuf.c
@@ -51,7 +51,7 @@ static int stm32_vrefbuf_enable(struct r
 	 * arbitrary timeout.
 	 */
 	ret = readl_poll_timeout(priv->base + STM32_VREFBUF_CSR, val,
-				 !(val & STM32_VRR), 650, 10000);
+				 val & STM32_VRR, 650, 10000);
 	if (ret) {
 		dev_err(&rdev->dev, "stm32 vrefbuf timed out!\n");
 		val = readl_relaxed(priv->base + STM32_VREFBUF_CSR);


Patches currently in stable-queue which might be from fabrice.gasnier@st.com are

queue-4.14/regulator-stm32-vrefbuf-fix-check-on-ready-flag.patch