From edd46a2a54fcd604871bd18e858bbcf28bfcaea1 Mon Sep 17 00:00:00 2001 From: Sandeep Gangadharaiah Date: Mon, 13 Sep 2021 23:15:27 -0400 Subject: [PATCH] disp: msm: dp: retry the request to set USB mode during bootup DP driver is requesting USB to release SS lanes very early during bootup even before USB has fully initialized. As a result USB driver is returning -11 which will abort DP state machine. This change will allow DP driver to retry USB request whenever this error code is received. Change-Id: I144d16ef4b07016569ba9c04df15610fe3b5e6fc Signed-off-by: Sandeep Gangadharaiah --- msm/dp/dp_altmode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/msm/dp/dp_altmode.c b/msm/dp/dp_altmode.c index b6df1b5e76..d670303190 100644 --- a/msm/dp/dp_altmode.c +++ b/msm/dp/dp_altmode.c @@ -43,7 +43,7 @@ enum dp_altmode_pin_assignment { static int dp_altmode_set_usb_dp_mode(struct dp_altmode_private *altmode) { - int rc; + int rc = 0; struct device_node *np; struct device_node *usb_node; struct platform_device *usb_pdev; @@ -71,7 +71,7 @@ static int dp_altmode_set_usb_dp_mode(struct dp_altmode_private *altmode) while (timeout) { rc = dwc3_msm_set_dp_mode(&usb_pdev->dev, altmode->connected, altmode->lanes); - if (rc != -EBUSY) + if (rc != -EBUSY && rc != -EAGAIN) break; DP_WARN("USB busy, retry\n");