diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-03-27 12:50:58 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-08-18 11:27:15 +0100 |
| commit | b5814fff27c6d0212b86306bdd01fe3aea99cabb (patch) | |
| tree | edc2ebd40a0847df99649a1949136bd49847c251 /drivers/gpu/drm/bridge | |
| parent | b91eee8cd8a547e43e271e5908e16c4a53c9416d (diff) | |
drm: bridge/dw_hdmi: introduce interface to setting sample rate
Introduce dw_hdmi_set_sample_rate(), which allows us to configure the
audio sample rate, setting the CTS/N values appropriately.
Tested-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/dw_hdmi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index eeb01693812a..0ed8c49f1c6e 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c @@ -365,6 +365,16 @@ static void hdmi_clk_regenerator_update_pixel_clock(struct dw_hdmi *hdmi) mutex_unlock(&hdmi->audio_mutex); } +void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate) +{ + mutex_lock(&hdmi->audio_mutex); + hdmi->sample_rate = rate; + hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock, + hdmi->sample_rate, hdmi->ratio); + mutex_unlock(&hdmi->audio_mutex); +} +EXPORT_SYMBOL_GPL(dw_hdmi_set_sample_rate); + /* * this submodule is responsible for the video data synchronization. * for example, for RGB 4:4:4 input, the data map is defined as |