summaryrefslogtreecommitdiff
path: root/sound/soc/tegra/tegra_asoc_utils.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/tegra/tegra_asoc_utils.c')
-rw-r--r--sound/soc/tegra/tegra_asoc_utils.c37
1 files changed, 32 insertions, 5 deletions
diff --git a/sound/soc/tegra/tegra_asoc_utils.c b/sound/soc/tegra/tegra_asoc_utils.c
index f8428e410e05..9515ce58ea02 100644
--- a/sound/soc/tegra/tegra_asoc_utils.c
+++ b/sound/soc/tegra/tegra_asoc_utils.c
@@ -2,7 +2,7 @@
* tegra_asoc_utils.c - Harmony machine ASoC driver
*
* Author: Stephen Warren <swarren@nvidia.com>
- * Copyright (C) 2010 - NVIDIA, Inc.
+ * Copyright (C) 2010,2012 - NVIDIA, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -25,6 +25,7 @@
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/of.h>
#include "tegra_asoc_utils.h"
@@ -40,7 +41,10 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
case 22050:
case 44100:
case 88200:
- new_baseclock = 56448000;
+ if (data->soc == TEGRA_ASOC_UTILS_SOC_TEGRA20)
+ new_baseclock = 56448000;
+ else
+ new_baseclock = 564480000;
break;
case 8000:
case 16000:
@@ -48,7 +52,10 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
case 48000:
case 64000:
case 96000:
- new_baseclock = 73728000;
+ if (data->soc == TEGRA_ASOC_UTILS_SOC_TEGRA20)
+ new_baseclock = 73728000;
+ else
+ new_baseclock = 552960000;
break;
default:
return -EINVAL;
@@ -78,7 +85,7 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
return err;
}
- /* Don't set cdev1 rate; its locked to pll_a_out0 */
+ /* Don't set cdev1/extern1 rate; it's locked to pll_a_out0 */
err = clk_enable(data->clk_pll_a);
if (err) {
@@ -112,6 +119,17 @@ int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
data->dev = dev;
+ if (of_machine_is_compatible("nvidia,tegra20"))
+ data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA20;
+ else if (of_machine_is_compatible("nvidia,tegra30"))
+ data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA30;
+ else if (!dev->of_node)
+ /* non-DT is always Tegra20 */
+ data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA20;
+ else
+ /* DT boot, but unknown SoC */
+ return -EINVAL;
+
data->clk_pll_a = clk_get_sys(NULL, "pll_a");
if (IS_ERR(data->clk_pll_a)) {
dev_err(data->dev, "Can't retrieve clk pll_a\n");
@@ -126,15 +144,24 @@ int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
goto err_put_pll_a;
}
- data->clk_cdev1 = clk_get_sys(NULL, "cdev1");
+ if (data->soc == TEGRA_ASOC_UTILS_SOC_TEGRA20)
+ data->clk_cdev1 = clk_get_sys(NULL, "cdev1");
+ else
+ data->clk_cdev1 = clk_get_sys("extern1", NULL);
if (IS_ERR(data->clk_cdev1)) {
dev_err(data->dev, "Can't retrieve clk cdev1\n");
ret = PTR_ERR(data->clk_cdev1);
goto err_put_pll_a_out0;
}
+ ret = tegra_asoc_utils_set_rate(data, 44100, 256 * 44100);
+ if (ret)
+ goto err_put_cdev1;
+
return 0;
+err_put_cdev1:
+ clk_put(data->clk_cdev1);
err_put_pll_a_out0:
clk_put(data->clk_pll_a_out0);
err_put_pll_a: