From: Pin-yen Lin Date: Fri, 31 Mar 2023 03:02:04 +0000 (+0800) Subject: drm/bridge: ps8640: Use constant sleep time for polling hpd X-Git-Tag: v6.4-rc1~162^2~10^2~18 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4224011374d1b4228a59b73149320c61eeb700b3;p=thirdparty%2Flinux.git drm/bridge: ps8640: Use constant sleep time for polling hpd The default hpd_wait_us in panel_edp.c is 2 seconds. This makes the sleep time in the polling of _ps8640_wait_hpd_asserted become 200ms. Change it to a constant 20ms to speed up the function. Signed-off-by: Pin-yen Lin Reviewed-by: Douglas Anderson Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20230331030204.1179524-1-treapking@chromium.org --- diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c b/drivers/gpu/drm/bridge/parade-ps8640.c index b823e55650b10..c3eb45179405c 100644 --- a/drivers/gpu/drm/bridge/parade-ps8640.c +++ b/drivers/gpu/drm/bridge/parade-ps8640.c @@ -184,7 +184,7 @@ static int _ps8640_wait_hpd_asserted(struct ps8640 *ps_bridge, unsigned long wai * actually connected to GPIO9). */ ret = regmap_read_poll_timeout(map, PAGE2_GPIO_H, status, - status & PS_GPIO9, wait_us / 10, wait_us); + status & PS_GPIO9, 20000, wait_us); /* * The first time we see HPD go high after a reset we delay an extra