This is a note to let you know that I've just added the patch titled
phy: ti: tusb1210: Don't check for write errors when powering on
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:
phy-ti-tusb1210-don-t-check-for-write-errors-when-po.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 7bf39e9cbcacbd69756d6a37b77c283962624689
Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Mon Jun 13 19:08:48 2022 +0300
phy: ti: tusb1210: Don't check for write errors when powering on
[ Upstream commit d4a0a189b72a7c98e4256292b18b67c69fbc9343 ]
On some platforms, like Intel Merrifield, the writing values during power on
may timeout:
tusb1210 dwc3.0.auto.ulpi: error -110 writing val 0x41 to reg 0x80
phy phy-dwc3.0.auto.ulpi.0: phy poweron failed --> -110
dwc3 dwc3.0.auto: error -ETIMEDOUT: failed to initialize core
dwc3: probe of dwc3.0.auto failed with error -110
which effectively fails the probe of the USB controller.
Drop the check as it was before the culprit commit (see Fixes tag).
Fixes: 09a3512681b3 ("phy: ti: tusb1210: Improve ulpi_read()/_write() error checking")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Acked-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Tested-by: Ferry Toth <fntoth@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220613160848.82746-1-andriy.shevchenko@xxxxxxxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/phy/ti/phy-tusb1210.c b/drivers/phy/ti/phy-tusb1210.c
index c3ab4b69ea68..669c13d6e402 100644
--- a/drivers/phy/ti/phy-tusb1210.c
+++ b/drivers/phy/ti/phy-tusb1210.c
@@ -105,8 +105,9 @@ static int tusb1210_power_on(struct phy *phy)
msleep(TUSB1210_RESET_TIME_MS);
/* Restore the optional eye diagram optimization value */
- return tusb1210_ulpi_write(tusb, TUSB1210_VENDOR_SPECIFIC2,
- tusb->vendor_specific2);
+ tusb1210_ulpi_write(tusb, TUSB1210_VENDOR_SPECIFIC2, tusb->vendor_specific2);
+
+ return 0;
}
static int tusb1210_power_off(struct phy *phy)
