ASoC: tegra20: spdif: Support device-tree

Tegra20 S/PDIF driver was added in a pre-DT era and was never used since
that time. Revive driver by adding device-tree support.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20211204143725.31646-8-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c
index e45e371..8017849 100644 (file)
--- a/sound/soc/tegra/tegra20_spdif.c
+++ b/sound/soc/tegra/tegra20_spdif.c
@@ -10,6 +10,7 @@
 #include <linux/device.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
@@ -270,7 +271,7 @@ static int tegra20_spdif_platform_probe(struct platform_device *pdev)
 
        dev_set_drvdata(&pdev->dev, spdif);
 
-       spdif->clk_spdif_out = devm_clk_get(&pdev->dev, "spdif_out");
+       spdif->clk_spdif_out = devm_clk_get(&pdev->dev, "out");
        if (IS_ERR(spdif->clk_spdif_out)) {
                pr_err("Can't retrieve spdif clock\n");
                ret = PTR_ERR(spdif->clk_spdif_out);
@@ -340,10 +341,17 @@ static const struct dev_pm_ops tegra20_spdif_pm_ops = {
                           tegra20_spdif_runtime_resume, NULL)
 };
 
+static const struct of_device_id tegra20_spdif_of_match[] = {
+       { .compatible = "nvidia,tegra20-spdif", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, tegra20_spdif_of_match);
+
 static struct platform_driver tegra20_spdif_driver = {
        .driver = {
                .name = DRV_NAME,
                .pm = &tegra20_spdif_pm_ops,
+               .of_match_table = tegra20_spdif_of_match,
        },
        .probe = tegra20_spdif_platform_probe,
        .remove = tegra20_spdif_platform_remove,
@@ -354,4 +362,3 @@ module_platform_driver(tegra20_spdif_driver);
 MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
 MODULE_DESCRIPTION("Tegra20 SPDIF ASoC driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);