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| author | Xin Ji <xji@analogixsemi.com> | 2022-03-22 16:02:12 +0800 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2022-03-28 15:15:44 +0200 |
| commit | 27f26359de9b63131a4990ec341dba969860f2fa (patch) | |
| tree | 98600a2173502d49507b7f3bbc1f9891544724df /drivers/gpu/drm/bridge/analogix/anx7625.c | |
| parent | 3ccd59f93004c369cc4c0f0939f80cb069f0fc2d (diff) | |
| download | linux-stable-27f26359de9b63131a4990ec341dba969860f2fa.tar.gz linux-stable-27f26359de9b63131a4990ec341dba969860f2fa.tar.bz2 linux-stable-27f26359de9b63131a4990ec341dba969860f2fa.zip | |
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 <xji@analogixsemi.com>
Reviewed-by: Pin-Yen Lin <treapking@chromium.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220322080213.1487134-1-xji@analogixsemi.com
Diffstat (limited to 'drivers/gpu/drm/bridge/analogix/anx7625.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/analogix/anx7625.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 9a2a19ad4202..dcf3275a00fe 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); |