On Tue, 2022-07-26 at 11:30 +0800, Xin Ji wrote:
> 1. Support HDMI_I2S audio format.
> 2. Return 0 if there is no sink connection in .hw_param callback.
>
> Signed-off-by: Xin Ji <xji@xxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/bridge/analogix/anx7625.c | 23 +++++++++++++++++--
> ----
> 1 file changed, 17 insertions(+), 6 deletions(-)
>
Acked-by: Jiaxin Yu<jiaxin.yu@xxxxxxxxxxxx>
> diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c
> b/drivers/gpu/drm/bridge/analogix/anx7625.c
> index 79fc7a50b497..c74b5df4cade 100644
> --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> @@ -1797,8 +1797,13 @@ static int anx7625_audio_hw_params(struct
> device *dev, void *data,
> int wl, ch, rate;
> int ret = 0;
>
> - if (fmt->fmt != HDMI_DSP_A) {
> - DRM_DEV_ERROR(dev, "only supports DSP_A\n");
> + if (anx7625_sink_detect(ctx) == connector_status_disconnected)
> {
> + DRM_DEV_DEBUG_DRIVER(dev, "DP not connected\n");
> + return 0;
> + }
> +
> + if (fmt->fmt != HDMI_DSP_A && fmt->fmt != HDMI_I2S) {
> + DRM_DEV_ERROR(dev, "only supports DSP_A & I2S\n");
> return -EINVAL;
> }
>
> @@ -1806,10 +1811,16 @@ static int anx7625_audio_hw_params(struct
> device *dev, void *data,
> params->sample_rate, params->sample_width,
> params->cea.channels);
>
> - ret |= anx7625_write_and_or(ctx, ctx->i2c.tx_p2_client,
> - AUDIO_CHANNEL_STATUS_6,
> - ~I2S_SLAVE_MODE,
> - TDM_SLAVE_MODE);
> + if (fmt->fmt == HDMI_DSP_A)
> + ret = anx7625_write_and_or(ctx, ctx->i2c.tx_p2_client,
> + AUDIO_CHANNEL_STATUS_6,
> + ~I2S_SLAVE_MODE,
> + TDM_SLAVE_MODE);
> + else
> + ret = anx7625_write_and_or(ctx, ctx->i2c.tx_p2_client,
> + AUDIO_CHANNEL_STATUS_6,
> + ~TDM_SLAVE_MODE,
> + I2S_SLAVE_MODE);
>
> /* Word length */
> switch (params->sample_width) {
