linux-kernel - [PATCH v3 07/20] ASoC: tegra20: spdif: Support device-tree

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Date:   Thu,  2 Dec 2021 19:23:28 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Liam Girdwood <lgirdwood@...il.com>,
        Agneli <poczt@...tonmail.ch>, Rob Herring <robh+dt@...nel.org>
Cc:     linux-tegra@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: [PATCH v3 07/20] 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@...il.com>
---
 sound/soc/tegra/tegra20_spdif.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c
index e45e371edc42..801784915004 100644
--- 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@...dia.com>");
 MODULE_DESCRIPTION("Tegra20 SPDIF ASoC driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
-- 
2.33.1