6.6-stable review patch. If anyone has any objections, please let me know.
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From: Aaro Koskinen aaro.koskinen@iki.fi
[ Upstream commit 894ad61b85d6ba8efd4274aa8719d9ff1c89ea54 ]
Commit e519f0bb64ef ("ARM/mmc: Convert old mmci-omap to GPIO descriptors") moved Nokia N810 MMC power up/down from the board file into the MMC driver.
The change removed some delays, and ordering without a valid reason. Restore power up/down to match the original code. This matters only on N810 where the 2nd GPIO is in use. Other boards will see an additional delay but that should be a lesser concern than omitting delays altogether.
Fixes: e519f0bb64ef ("ARM/mmc: Convert old mmci-omap to GPIO descriptors") Signed-off-by: Aaro Koskinen aaro.koskinen@iki.fi Message-ID: 20240223181439.1099750-6-aaro.koskinen@iki.fi Reviewed-by: Linus Walleij linus.walleij@linaro.org Acked-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/host/omap.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index 50408771ae01c..13fa8588e38c1 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -1119,10 +1119,25 @@ static void mmc_omap_set_power(struct mmc_omap_slot *slot, int power_on,
host = slot->host;
- if (slot->vsd) - gpiod_set_value(slot->vsd, power_on); - if (slot->vio) - gpiod_set_value(slot->vio, power_on); + if (power_on) { + if (slot->vsd) { + gpiod_set_value(slot->vsd, power_on); + msleep(1); + } + if (slot->vio) { + gpiod_set_value(slot->vio, power_on); + msleep(1); + } + } else { + if (slot->vio) { + gpiod_set_value(slot->vio, power_on); + msleep(50); + } + if (slot->vsd) { + gpiod_set_value(slot->vsd, power_on); + msleep(50); + } + }
if (slot->pdata->set_power != NULL) slot->pdata->set_power(mmc_dev(slot->mmc), slot->id, power_on,