This is a note to let you know that I've just added the patch titled
mmc: renesas_sdhi: Get the reset handle early in the probe
to the 5.18-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:
mmc-renesas_sdhi-get-the-reset-handle-early-in-the-p.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a59b0afa39ee0e26995422c59b371a6f5e506a05
Author: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Date: Fri Jun 24 19:14:37 2022 +0100
mmc: renesas_sdhi: Get the reset handle early in the probe
[ Upstream commit 0dac1e498f8130fdacfdd5289e3a7ac87ec1b9ad ]
In case of devm_reset_control_get_optional_exclusive() failure we returned
directly instead of jumping to the error path to roll back initialization.
This patch moves devm_reset_control_get_optional_exclusive() early in the
probe so that we have the reset handle prior to initialization of the
hardware.
Fixes: b4d86f37eacb7 ("mmc: renesas_sdhi: do hard reset if possible")
Reported-by: Pavel Machek <pavel@xxxxxxx>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220624181438.4355-2-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index ddb5ca2f559e..4fb49306275e 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -940,6 +940,10 @@ int renesas_sdhi_probe(struct platform_device *pdev,
if (IS_ERR(priv->clk_cd))
return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk_cd), "cannot get cd clock");
+ priv->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
+ if (IS_ERR(priv->rstc))
+ return PTR_ERR(priv->rstc);
+
priv->pinctrl = devm_pinctrl_get(&pdev->dev);
if (!IS_ERR(priv->pinctrl)) {
priv->pins_default = pinctrl_lookup_state(priv->pinctrl,
@@ -1032,10 +1036,6 @@ int renesas_sdhi_probe(struct platform_device *pdev,
if (ret)
goto efree;
- priv->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
- if (IS_ERR(priv->rstc))
- return PTR_ERR(priv->rstc);
-
ver = sd_ctrl_read16(host, CTL_VERSION);
/* GEN2_SDR104 is first known SDHI to use 32bit block count */
if (ver < SDHI_VER_GEN2_SDR104 && mmc_data->max_blk_count > U16_MAX)
