diff options
| author | Sumit Bhattacharya <sumitb@nvidia.com> | 2012-02-03 19:03:19 +0530 |
|---|---|---|
| committer | Lokesh Pathak <lpathak@nvidia.com> | 2012-02-10 08:36:43 -0800 |
| commit | 23020fcc789f595cabb41beea625910fef227b09 (patch) | |
| tree | e965503d9cc15c5222f8f6ca30726869b27a83da /drivers/video/tegra/dc/hdmi.c | |
| parent | a471aa8e3b4139cc9fc593ddcb89e67c19315f42 (diff) | |
video: tegra: hdmi: Enable HDA NULL sample inject support
When HDMI NULL sample injection is enabled codec inserts null samples
into the audio FIFO for each Azalia frame in which it did not receive
any samples. This support is needed to prevent audio loss for HDMI
devices from some vendor(e.g. sony).
Bug 924926
Signed-off-by: Sumit Bhattacharya <sumitb@nvidia.com>
Reviewed-on: http://git-master/r/79227
(cherry picked from commit 898fd83d94506de3bd604f75d25084d9bcb6dd9e)
Change-Id: I81f55cab52c92377b49ab94635c8e8aa394b6739
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
Reviewed-on: http://git-master/r/82724
Reviewed-by: Automatic_Commit_Validation_User
Tested-by: Sumit Bhattacharya <sumitb@nvidia.com>
Reviewed-by: Sumit Bhattacharya <sumitb@nvidia.com>
Reviewed-by: Varun Wadekar <vwadekar@nvidia.com>
Tested-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-by: Scott Peterson <speterson@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Diffstat (limited to 'drivers/video/tegra/dc/hdmi.c')
| -rw-r--r-- | drivers/video/tegra/dc/hdmi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/tegra/dc/hdmi.c b/drivers/video/tegra/dc/hdmi.c index d8c0c289ee66..58af4c9891b6 100644 --- a/drivers/video/tegra/dc/hdmi.c +++ b/drivers/video/tegra/dc/hdmi.c @@ -1262,7 +1262,7 @@ static int tegra_dc_hdmi_setup_audio(struct tegra_dc *dc, unsigned audio_freq, a_source = AUDIO_CNTRL0_SOURCE_SELECT_SPDIF; #if !defined(CONFIG_ARCH_TEGRA_2x_SOC) - tegra_hdmi_writel(hdmi,a_source, + tegra_hdmi_writel(hdmi,a_source | AUDIO_CNTRL0_INJECT_NULLSMPL, HDMI_NV_PDISP_SOR_AUDIO_CNTRL0_0); tegra_hdmi_writel(hdmi, AUDIO_CNTRL0_ERROR_TOLERANCE(6) | |