From 27f26359de9b63131a4990ec341dba969860f2fa Mon Sep 17 00:00:00 2001 From: Xin Ji Date: Tue, 22 Mar 2022 16:02:12 +0800 Subject: [PATCH] drm/bridge: anx7625: Set downstream sink into normal status As downstream sink was set into standby mode while bridge disabled, this patch used for setting downstream sink into normal status while enable bridge. Signed-off-by: Xin Ji Reviewed-by: Pin-Yen Lin Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20220322080213.1487134-1-xji@analogixsemi.com --- drivers/gpu/drm/bridge/analogix/anx7625.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 9a2a19a..dcf3275 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -924,12 +924,20 @@ static void anx7625_dp_start(struct anx7625_data *ctx) { int ret; struct device *dev = &ctx->client->dev; + u8 data; if (!ctx->display_timing_valid) { DRM_DEV_ERROR(dev, "mipi not set display timing yet.\n"); return; } + dev_dbg(dev, "set downstream sink into normal\n"); + /* Downstream sink enter into normal mode */ + data = 1; + ret = anx7625_aux_trans(ctx, DP_AUX_NATIVE_WRITE, 0x000600, 1, &data); + if (ret < 0) + dev_err(dev, "IO error : set sink into normal mode fail\n"); + /* Disable HDCP */ anx7625_write_and(ctx, ctx->i2c.rx_p1_client, 0xee, 0x9f); -- 2.7.4