From: Dmitry Osipenko Date: Wed, 25 Mar 2026 10:57:42 +0000 (+0300) Subject: media: synopsys: hdmirx: Fix HPD lane hold time X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=d1162a5adbb5e95953d460b5bde3a04cd4473fe9;p=thirdparty%2Fkernel%2Flinux.git media: synopsys: hdmirx: Fix HPD lane hold time Increase time of holding HPD lane low by 50ms. This fixes EDID change not detected by source/display side. Fixes: 7b59b132ad43 ("media: platform: synopsys: Add support for HDMI input driver") Cc: stable@vger.kernel.org Reported-by: Ross Cawston Closes: https://lore.kernel.org/linux-rockchip/20260209061654.54757-1-ross@r-sc.ca/ Signed-off-by: Dmitry Osipenko Signed-off-by: Hans Verkuil --- diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c index 61ad20b18b8d6..4c8957505a50d 100644 --- a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c +++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c @@ -506,9 +506,9 @@ static void hdmirx_hpd_ctrl(struct snps_hdmirx_dev *hdmirx_dev, bool en) hdmirx_writel(hdmirx_dev, CORE_CONFIG, hdmirx_dev->hpd_trigger_level_high ? en : !en); - /* 100ms delay as per HDMI spec */ + /* 100ms delay as per HDMI spec + extra 50ms to cover internal delay */ if (!en) - msleep(100); + msleep(100 + 50); } static void hdmirx_write_edid_data(struct snps_hdmirx_dev *hdmirx_dev,