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authorFabrice Gasnier <fabrice.gasnier@foss.st.com>2023-04-12 19:17:34 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-04-20 12:04:47 +0300
commit511b74e7c0b8ecd78b8175f5ee84dc0b6e014c19 (patch)
treedeaf2e592822d0a8dfe91db46304c4c6453647c3 /drivers/usb
parentdac3b192107b978198e89ec0f77375738352e0c8 (diff)
downloadlinux-511b74e7c0b8ecd78b8175f5ee84dc0b6e014c19.tar.xz
usb: typec: ucsi: don't print PPM init deferred errors
ucsi_init() may be deferred as usb_role_sw may be deferred in ucsi_register_port(). This results in several PPM init failed (-517) messages maybe printed several times upon boot, like on stm32mp135f-dk board, until the role_switch driver gets probed. [ 19.880945] dwc2 49000000.usb: supply vusb_d not found, using dummy regulator [ 19.887136] dwc2 49000000.usb: supply vusb_a not found, using dummy regulator [ 19.975432] ucsi-stm32g0-i2c 0-0053: PPM init failed (-517) [ 20.155746] dwc2 49000000.usb: EPs: 9, dedicated fifos, 952 entries in SPRAM [ 20.175429] ucsi-stm32g0-i2c 0-0053: PPM init failed (-517) [ 20.184242] dwc2 49000000.usb: DWC OTG Controller Adopt dev_err_probe() instead of dev_err(), to only print other errors. Also print an error in case the wait count has expired. Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://lore.kernel.org/r/20230412161734.3425090-1-fabrice.gasnier@foss.st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/typec/ucsi/ucsi.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 8d1baf28df55..2b472ec01dc4 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -1444,11 +1444,13 @@ static void ucsi_init_work(struct work_struct *work)
ret = ucsi_init(ucsi);
if (ret)
- dev_err(ucsi->dev, "PPM init failed (%d)\n", ret);
+ dev_err_probe(ucsi->dev, ret, "PPM init failed\n");
if (ret == -EPROBE_DEFER) {
- if (ucsi->work_count++ > UCSI_ROLE_SWITCH_WAIT_COUNT)
+ if (ucsi->work_count++ > UCSI_ROLE_SWITCH_WAIT_COUNT) {
+ dev_err(ucsi->dev, "PPM init failed, stop trying\n");
return;
+ }
queue_delayed_work(system_long_wq, &ucsi->work,
UCSI_ROLE_SWITCH_INTERVAL);