diff options
| author | ScottPeterson <speterson@nvidia.com> | 2012-01-17 17:32:11 -0800 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2012-01-30 13:28:18 -0800 |
| commit | 2e3c724c167ec5da8b1ed5ab07cda55232ecdf13 (patch) | |
| tree | d82c4c6da45dd46de1aa0c75393869470fe033e3 /sound/soc/tegra/tegra30_ahub.c | |
| parent | 6814bf677b18c10cee192e813d3d468b01229a25 (diff) | |
asoc:tegra: Support I2S slave mode
Support I2S slave mode. Disable pll_p_out1 and
pll_a to reduce power when in slave mode.
Slave mode disabled by default.
Reviewed-on: http://git-master/r/76046
Change-Id: I873a11d54f1e037d99c86ff4cec06ee83064902a
Signed-off-by: ScottPeterson <speterson@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/77765
Reviewed-by: Automatic_Commit_Validation_User
Diffstat (limited to 'sound/soc/tegra/tegra30_ahub.c')
| -rw-r--r-- | sound/soc/tegra/tegra30_ahub.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c index 3fceda143da8..710d9465b4b0 100644 --- a/sound/soc/tegra/tegra30_ahub.c +++ b/sound/soc/tegra/tegra30_ahub.c @@ -487,6 +487,7 @@ static int __devinit tegra30_ahub_probe(struct platform_device *pdev) #ifdef CONFIG_PM int i = 0, cache_idx_rsvd; #endif + int clkm_rate; if (ahub) return -ENODEV; @@ -505,6 +506,11 @@ static int __devinit tegra30_ahub_probe(struct platform_device *pdev) ret = PTR_ERR(ahub->clk_d_audio); goto err_free; } + clkm_rate = clk_get_rate(clk_get_parent(ahub->clk_d_audio)); + while (clkm_rate > 12000000) + clkm_rate >>= 1; + + clk_set_rate(ahub->clk_d_audio,clkm_rate); ahub->clk_apbif = clk_get(&pdev->dev, "apbif"); if (IS_ERR(ahub->clk_apbif)) { |