diff mbox series

[1/3] drm/bridge: sii902x: fix missing reference to mclk clock

Message ID 1562082426-14876-2-git-send-email-olivier.moysan@st.com (mailing list archive)
State New, archived
Headers show
Series drm/bridge: sii902x: fix audio mclk management | expand

Commit Message

Olivier MOYSAN July 2, 2019, 3:47 p.m. UTC
Add devm_clk_get call to retrieve reference to master clock.

Fixes: ff5781634c41 ("drm/bridge: sii902x: Implement HDMI audio support")

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
---
 drivers/gpu/drm/bridge/sii902x.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Jyri Sarha July 4, 2019, 8:03 a.m. UTC | #1
On 02/07/2019 18:47, Olivier Moysan wrote:
> Add devm_clk_get call to retrieve reference to master clock.
> 
> Fixes: ff5781634c41 ("drm/bridge: sii902x: Implement HDMI audio support")
> 
> Signed-off-by: Olivier Moysan <olivier.moysan@st.com>

Reviewed-by: Jyri Sarha <jsarha@ti.com>

I wonder how that line was dropped and how the code past my final test.
Any way, this fix is definitely needed.

Thanks,
Jyri

> ---
>  drivers/gpu/drm/bridge/sii902x.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
> index dd7aa466b280..36acc256e67e 100644
> --- a/drivers/gpu/drm/bridge/sii902x.c
> +++ b/drivers/gpu/drm/bridge/sii902x.c
> @@ -750,6 +750,7 @@ static int sii902x_audio_codec_init(struct sii902x *sii902x,
>  		sii902x->audio.i2s_fifo_sequence[i] |= audio_fifo_id[i] |
>  			i2s_lane_id[lanes[i]] |	SII902X_TPI_I2S_FIFO_ENABLE;
>  
> +	sii902x->audio.mclk = devm_clk_get(dev, "mclk");
>  	if (IS_ERR(sii902x->audio.mclk)) {
>  		dev_err(dev, "%s: No clock (audio mclk) found: %ld\n",
>  			__func__, PTR_ERR(sii902x->audio.mclk));
>
Philippe CORNU July 5, 2019, 12:24 p.m. UTC | #2
Hi Olivier,
and many thanks for your patch.
I do not see how audio could work without your patch, so:
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Philippe :-)

On 7/2/19 5:47 PM, Olivier Moysan wrote:
> Add devm_clk_get call to retrieve reference to master clock.
> 
> Fixes: ff5781634c41 ("drm/bridge: sii902x: Implement HDMI audio support")
> 
> Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
> ---
>   drivers/gpu/drm/bridge/sii902x.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
> index dd7aa466b280..36acc256e67e 100644
> --- a/drivers/gpu/drm/bridge/sii902x.c
> +++ b/drivers/gpu/drm/bridge/sii902x.c
> @@ -750,6 +750,7 @@ static int sii902x_audio_codec_init(struct sii902x *sii902x,
>   		sii902x->audio.i2s_fifo_sequence[i] |= audio_fifo_id[i] |
>   			i2s_lane_id[lanes[i]] |	SII902X_TPI_I2S_FIFO_ENABLE;
>   
> +	sii902x->audio.mclk = devm_clk_get(dev, "mclk");
>   	if (IS_ERR(sii902x->audio.mclk)) {
>   		dev_err(dev, "%s: No clock (audio mclk) found: %ld\n",
>   			__func__, PTR_ERR(sii902x->audio.mclk));
>
Andrzej Hajda July 12, 2019, 10:31 a.m. UTC | #3
On 02.07.2019 17:47, Olivier Moysan wrote:
> Add devm_clk_get call to retrieve reference to master clock.
>
> Fixes: ff5781634c41 ("drm/bridge: sii902x: Implement HDMI audio support")
>
> Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
> ---
>  drivers/gpu/drm/bridge/sii902x.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
> index dd7aa466b280..36acc256e67e 100644
> --- a/drivers/gpu/drm/bridge/sii902x.c
> +++ b/drivers/gpu/drm/bridge/sii902x.c
> @@ -750,6 +750,7 @@ static int sii902x_audio_codec_init(struct sii902x *sii902x,
>  		sii902x->audio.i2s_fifo_sequence[i] |= audio_fifo_id[i] |
>  			i2s_lane_id[lanes[i]] |	SII902X_TPI_I2S_FIFO_ENABLE;
>  
> +	sii902x->audio.mclk = devm_clk_get(dev, "mclk");
>  	if (IS_ERR(sii902x->audio.mclk)) {
>  		dev_err(dev, "%s: No clock (audio mclk) found: %ld\n",
>  			__func__, PTR_ERR(sii902x->audio.mclk));

Acked-by: Andrzej Hajda <a.hajda@samsung.com>

 --
Regards
Andrzej
diff mbox series

Patch

diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
index dd7aa466b280..36acc256e67e 100644
--- a/drivers/gpu/drm/bridge/sii902x.c
+++ b/drivers/gpu/drm/bridge/sii902x.c
@@ -750,6 +750,7 @@  static int sii902x_audio_codec_init(struct sii902x *sii902x,
 		sii902x->audio.i2s_fifo_sequence[i] |= audio_fifo_id[i] |
 			i2s_lane_id[lanes[i]] |	SII902X_TPI_I2S_FIFO_ENABLE;
 
+	sii902x->audio.mclk = devm_clk_get(dev, "mclk");
 	if (IS_ERR(sii902x->audio.mclk)) {
 		dev_err(dev, "%s: No clock (audio mclk) found: %ld\n",
 			__func__, PTR_ERR(sii902x->audio.mclk));