Hi Russell,
在 2015/5/9 18:26, Russell King 写道:
Introduce dw_hdmi_set_sample_rate(), which allows us to configure the audio sample rate, setting the CTS/N values appropriately.
Signed-off-by: Russell King rmk+kernel@arm.linux.org.uk
Test on RK3288 platform, it works wells (like patch 03/13 reply)
Test-by: ykk@rock-chips.com
Yakir Yang
drivers/gpu/drm/bridge/dw_hdmi.c | 10 ++++++++++ include/drm/bridge/dw_hdmi.h | 5 +++++ 2 files changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index 75728ba552d0..0369fab5c695 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c @@ -366,6 +366,16 @@ 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
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h index de13bfc35634..763af51e1d60 100644 --- a/include/drm/bridge/dw_hdmi.h +++ b/include/drm/bridge/dw_hdmi.h @@ -12,6 +12,8 @@
#include <drm/drmP.h>
+struct dw_hdmi;
- enum { DW_HDMI_RES_8, DW_HDMI_RES_10,
@@ -59,4 +61,7 @@ int dw_hdmi_bind(struct device *dev, struct device *master, void *data, struct drm_encoder *encoder, struct resource *iores, int irq, const struct dw_hdmi_plat_data *plat_data);
+void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate);
- #endif /* __IMX_HDMI_H__ */