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Tegra114 requires different PLL rates. Modify the code to know about this. On Tegra114 only for now, use regular clk_get() rather than clk_get_sys() to retrieve clocks. This assumes that the clocks will be represented in device tree. We can assure that from the start of any Tegra114 audio support. For older chips, I'll add the required clocks properties to the device trees this kernel cycle, and switch this code to only support the "new_clocks" path next cycle. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/*
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* tegra_asoc_utils.h - Definitions for Tegra DAS driver
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*
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* Author: Stephen Warren <swarren@nvidia.com>
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* Copyright (C) 2010,2012 - NVIDIA, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __TEGRA_ASOC_UTILS_H__
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#define __TEGRA_ASOC_UTILS_H_
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struct clk;
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struct device;
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enum tegra_asoc_utils_soc {
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TEGRA_ASOC_UTILS_SOC_TEGRA20,
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TEGRA_ASOC_UTILS_SOC_TEGRA30,
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TEGRA_ASOC_UTILS_SOC_TEGRA114,
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};
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struct tegra_asoc_utils_data {
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struct device *dev;
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enum tegra_asoc_utils_soc soc;
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struct clk *clk_pll_a;
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struct clk *clk_pll_a_out0;
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struct clk *clk_cdev1;
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int set_baseclock;
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int set_mclk;
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};
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int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
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int mclk);
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int tegra_asoc_utils_set_ac97_rate(struct tegra_asoc_utils_data *data);
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int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
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struct device *dev);
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void tegra_asoc_utils_fini(struct tegra_asoc_utils_data *data);
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#endif
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