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ASoC: tegra-alt: Support dynamic pinmux for spdif

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Support dynamic pinmux settings for dspk, this change will help
to runtime configure the pinmux register to use pinmuxed path.

Change-Id: Ice8236e17e55f9fb58566f65a638b750fc7bdd00
Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
Reviewed-on: http://git-master/r/1181863
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Ravindra Lokhande <rlokhande@nvidia.com>
This commit is contained in:
Mohan Kumar
2016-07-15 11:29:56 +05:30
committed by Sameer Pujar
parent 0b8798133d
commit 3b4c46e6f1
1 changed files with 58 additions and 2 deletions
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60
sound/soc/tegra-alt/tegra210_spdif_alt.c
View File

@@ -31,6 +31,7 @@
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <linux/of_device.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pinctrl/pinconf-tegra.h>
#include "tegra210_xbar_alt.h"
@@ -59,10 +60,19 @@ static const struct reg_default tegra210_spdif_reg_defaults[] = {
static int tegra210_spdif_runtime_suspend(struct device *dev)
{
struct tegra210_spdif *spdif = dev_get_drvdata(dev);
int ret;
regcache_cache_only(spdif->regmap, true);
regcache_mark_dirty(spdif->regmap);
if (!(tegra_platform_is_unit_fpga() || tegra_platform_is_fpga())) {
if (!IS_ERR(spdif->pin_idle_state) && spdif->is_pinctrl) {
ret = pinctrl_select_state(
spdif->pinctrl, spdif->pin_idle_state);
if (ret < 0)
dev_err(dev,
"setting dap pinctrl idle state failed\n");
}
clk_disable_unprepare(spdif->clk_spdif_out);
clk_disable_unprepare(spdif->clk_spdif_in);
}
@@ -84,6 +94,14 @@ static int tegra210_spdif_runtime_resume(struct device *dev)
}
if (!(tegra_platform_is_unit_fpga() || tegra_platform_is_fpga())) {
if (!IS_ERR(spdif->pin_active_state) && spdif->is_pinctrl) {
ret = pinctrl_select_state(spdif->pinctrl,
spdif->pin_active_state);
if (ret < 0)
dev_err(dev,
"setting dap pinctrl active state failed\n");
}
ret = clk_prepare_enable(spdif->clk_spdif_out);
if (ret) {
dev_err(dev, "spdif_out_clk_enable failed: %d\n", ret);
@@ -540,9 +558,47 @@ static int tegra210_spdif_platform_probe(struct platform_device *pdev)
goto err_suspend;
}
if (of_property_read_string(np, "prod-name", &prod_name) == 0)
tegra_pinctrl_config_prod(&pdev->dev, prod_name);
if (of_property_read_string(np, "prod-name", &prod_name) == 0) {
ret = tegra_pinctrl_config_prod(&pdev->dev, prod_name);
if (ret < 0)
dev_warn(&pdev->dev, "Failed to set %s setting\n",
prod_name);
}
if (of_property_read_u32(np, "nvidia,is-pinctrl",
&spdif->is_pinctrl) < 0)
spdif->is_pinctrl = 0;
if (spdif->is_pinctrl) {
spdif->pinctrl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR(spdif->pinctrl)) {
dev_warn(&pdev->dev, "Missing pinctrl device\n");
goto err_dap;
}
spdif->pin_active_state = pinctrl_lookup_state(spdif->pinctrl,
"dap_active");
if (IS_ERR(spdif->pin_active_state)) {
dev_warn(&pdev->dev, "Missing dap-active state\n");
goto err_dap;
}
spdif->pin_idle_state = pinctrl_lookup_state(spdif->pinctrl,
"dap_inactive");
if (IS_ERR(spdif->pin_idle_state)) {
dev_warn(&pdev->dev, "Missing dap-inactive state\n");
goto err_dap;
}
ret = pinctrl_select_state(spdif->pinctrl,
spdif->pin_idle_state);
if (ret < 0) {
dev_err(&pdev->dev, "setting state failed\n");
goto err_dap;
}
}
err_dap:
dev_set_drvdata(&pdev->dev, spdif);
return 0;