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 <xji@xxxxxxxxxxxxxxxx>
---
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 9aab879a8851..963eaf73ecab 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -919,12 +919,20 @@ 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_info(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);
--
2.25.1
