diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/tegra/tegra_asoc_utils.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/soc/tegra/tegra_asoc_utils.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/ANDROID_3.4.5/sound/soc/tegra/tegra_asoc_utils.c b/ANDROID_3.4.5/sound/soc/tegra/tegra_asoc_utils.c deleted file mode 100644 index f8428e41..00000000 --- a/ANDROID_3.4.5/sound/soc/tegra/tegra_asoc_utils.c +++ /dev/null @@ -1,157 +0,0 @@ -/* - * tegra_asoc_utils.c - Harmony machine ASoC driver - * - * Author: Stephen Warren <swarren@nvidia.com> - * Copyright (C) 2010 - NVIDIA, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/clk.h> -#include <linux/device.h> -#include <linux/err.h> -#include <linux/kernel.h> -#include <linux/module.h> - -#include "tegra_asoc_utils.h" - -int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate, - int mclk) -{ - int new_baseclock; - bool clk_change; - int err; - - switch (srate) { - case 11025: - case 22050: - case 44100: - case 88200: - new_baseclock = 56448000; - break; - case 8000: - case 16000: - case 32000: - case 48000: - case 64000: - case 96000: - new_baseclock = 73728000; - break; - default: - return -EINVAL; - } - - clk_change = ((new_baseclock != data->set_baseclock) || - (mclk != data->set_mclk)); - if (!clk_change) - return 0; - - data->set_baseclock = 0; - data->set_mclk = 0; - - clk_disable(data->clk_cdev1); - clk_disable(data->clk_pll_a_out0); - clk_disable(data->clk_pll_a); - - err = clk_set_rate(data->clk_pll_a, new_baseclock); - if (err) { - dev_err(data->dev, "Can't set pll_a rate: %d\n", err); - return err; - } - - err = clk_set_rate(data->clk_pll_a_out0, mclk); - if (err) { - dev_err(data->dev, "Can't set pll_a_out0 rate: %d\n", err); - return err; - } - - /* Don't set cdev1 rate; its locked to pll_a_out0 */ - - err = clk_enable(data->clk_pll_a); - if (err) { - dev_err(data->dev, "Can't enable pll_a: %d\n", err); - return err; - } - - err = clk_enable(data->clk_pll_a_out0); - if (err) { - dev_err(data->dev, "Can't enable pll_a_out0: %d\n", err); - return err; - } - - err = clk_enable(data->clk_cdev1); - if (err) { - dev_err(data->dev, "Can't enable cdev1: %d\n", err); - return err; - } - - data->set_baseclock = new_baseclock; - data->set_mclk = mclk; - - return 0; -} -EXPORT_SYMBOL_GPL(tegra_asoc_utils_set_rate); - -int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data, - struct device *dev) -{ - int ret; - - data->dev = dev; - - 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"); - ret = PTR_ERR(data->clk_pll_a); - goto err; - } - - data->clk_pll_a_out0 = clk_get_sys(NULL, "pll_a_out0"); - if (IS_ERR(data->clk_pll_a_out0)) { - dev_err(data->dev, "Can't retrieve clk pll_a_out0\n"); - ret = PTR_ERR(data->clk_pll_a_out0); - goto err_put_pll_a; - } - - data->clk_cdev1 = clk_get_sys(NULL, "cdev1"); - 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; - } - - return 0; - -err_put_pll_a_out0: - clk_put(data->clk_pll_a_out0); -err_put_pll_a: - clk_put(data->clk_pll_a); -err: - return ret; -} -EXPORT_SYMBOL_GPL(tegra_asoc_utils_init); - -void tegra_asoc_utils_fini(struct tegra_asoc_utils_data *data) -{ - clk_put(data->clk_cdev1); - clk_put(data->clk_pll_a_out0); - clk_put(data->clk_pll_a); -} -EXPORT_SYMBOL_GPL(tegra_asoc_utils_fini); - -MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); -MODULE_DESCRIPTION("Tegra ASoC utility code"); -MODULE_LICENSE("GPL"); |