diff options
Diffstat (limited to 'drivers/gpu/drm/panel/panel-simple.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-simple.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index e236ff7f5ca23..e8634c1462704 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -382,6 +382,7 @@ static int panel_simple_prepare(struct drm_panel *panel) unsigned int delay; int err; int hpd_asserted; + unsigned long hpd_wait_us; if (p->prepared_time != 0) return 0; @@ -409,9 +410,14 @@ static int panel_simple_prepare(struct drm_panel *panel) goto error; } + if (p->desc->delay.hpd_absent_delay) + hpd_wait_us = p->desc->delay.hpd_absent_delay * 1000UL; + else + hpd_wait_us = 2000000; + err = readx_poll_timeout(gpiod_get_value_cansleep, p->hpd_gpio, hpd_asserted, hpd_asserted, - 1000, 2000000); + 1000, hpd_wait_us); if (hpd_asserted < 0) err = hpd_asserted; |