This is a note to let you know that I've just added the patch titled
i2c: imx: If pm_runtime_get_sync() returned 1 device access is possible
to the 5.19-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:
i2c-imx-if-pm_runtime_get_sync-returned-1-device-acc.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 781d3e29dee94bb45b04de2492dd3bf4d40d2790
Author: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Date: Mon Sep 12 15:20:40 2022 +0200
i2c: imx: If pm_runtime_get_sync() returned 1 device access is possible
[ Upstream commit 085aacaa73163f4b8a89dec24ecb32cfacd34017 ]
pm_runtime_get_sync() returning 1 also means the device is powered. So
resetting the chip registers in .remove() is possible and should be
done.
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Fixes: d98bdd3a5b50 ("i2c: imx: Make sure to unregister adapter on remove()")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Acked-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index e47fa3465671..3082183bd66a 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1583,7 +1583,7 @@ static int i2c_imx_remove(struct platform_device *pdev)
if (i2c_imx->dma)
i2c_imx_dma_free(i2c_imx);
- if (ret == 0) {
+ if (ret >= 0) {
/* setup chip registers to defaults */
imx_i2c_write_reg(0, i2c_imx, IMX_I2C_IADR);
imx_i2c_write_reg(0, i2c_imx, IMX_I2C_IFDR);
