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From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Mark Brown <broonie@kernel.org>, Takashi Iwai <tiwai@suse.com>,
	Jaroslav Kysela <perex@perex.cz>,
	Liam Girdwood <lgirdwood@gmail.com>, Agneli <poczt@protonmail.ch>,
	Rob Herring <robh+dt@kernel.org>
Cc: linux-tegra@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: [PATCH v1 08/20] ASoC: tegra20: spdif: Improve driver's code
Date: Thu, 25 Nov 2021 01:00:45 +0300	[thread overview]
Message-ID: <20211124220057.15763-9-digetx@gmail.com> (raw)
In-Reply-To: <20211124220057.15763-1-digetx@gmail.com>

- Clean up whitespaces, defines and variables.

- Remove obsolete code.

- Adhere to upstream coding style.

- Don't override returned error code.

- Replace pr_err with dev_err.

No functional changes are made by this patch. This is a minor code's
refactoring that will ease further maintenance of the driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 sound/soc/tegra/tegra20_spdif.c | 49 ++++++++++++---------------------
 1 file changed, 18 insertions(+), 31 deletions(-)

diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c
index 6650875d2555..9383683aa4e9 100644
--- a/sound/soc/tegra/tegra20_spdif.c
+++ b/sound/soc/tegra/tegra20_spdif.c
@@ -23,8 +23,6 @@
 
 #include "tegra20_spdif.h"
 
-#define DRV_NAME "tegra20-spdif"
-
 static __maybe_unused int tegra20_spdif_runtime_suspend(struct device *dev)
 {
 	struct tegra20_spdif *spdif = dev_get_drvdata(dev);
@@ -49,11 +47,10 @@ static __maybe_unused int tegra20_spdif_runtime_resume(struct device *dev)
 }
 
 static int tegra20_spdif_hw_params(struct snd_pcm_substream *substream,
-				struct snd_pcm_hw_params *params,
-				struct snd_soc_dai *dai)
+				   struct snd_pcm_hw_params *params,
+				   struct snd_soc_dai *dai)
 {
-	struct device *dev = dai->dev;
-	struct tegra20_spdif *spdif = snd_soc_dai_get_drvdata(dai);
+	struct tegra20_spdif *spdif = dev_get_drvdata(dai->dev);
 	unsigned int mask = 0, val = 0;
 	int ret, spdifclock;
 
@@ -106,7 +103,7 @@ static int tegra20_spdif_hw_params(struct snd_pcm_substream *substream,
 
 	ret = clk_set_rate(spdif->clk_spdif_out, spdifclock);
 	if (ret) {
-		dev_err(dev, "Can't set SPDIF clock rate: %d\n", ret);
+		dev_err(dai->dev, "Can't set SPDIF clock rate: %d\n", ret);
 		return ret;
 	}
 
@@ -127,9 +124,9 @@ static void tegra20_spdif_stop_playback(struct tegra20_spdif *spdif)
 }
 
 static int tegra20_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
-				struct snd_soc_dai *dai)
+				 struct snd_soc_dai *dai)
 {
-	struct tegra20_spdif *spdif = snd_soc_dai_get_drvdata(dai);
+	struct tegra20_spdif *spdif = dev_get_drvdata(dai->dev);
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
@@ -151,7 +148,7 @@ static int tegra20_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
 
 static int tegra20_spdif_probe(struct snd_soc_dai *dai)
 {
-	struct tegra20_spdif *spdif = snd_soc_dai_get_drvdata(dai);
+	struct tegra20_spdif *spdif = dev_get_drvdata(dai->dev);
 
 	dai->capture_dma_data = NULL;
 	dai->playback_dma_data = &spdif->playback_dma_data;
@@ -160,26 +157,26 @@ static int tegra20_spdif_probe(struct snd_soc_dai *dai)
 }
 
 static const struct snd_soc_dai_ops tegra20_spdif_dai_ops = {
-	.hw_params	= tegra20_spdif_hw_params,
-	.trigger	= tegra20_spdif_trigger,
+	.hw_params = tegra20_spdif_hw_params,
+	.trigger = tegra20_spdif_trigger,
 };
 
 static struct snd_soc_dai_driver tegra20_spdif_dai = {
-	.name = DRV_NAME,
+	.name = "tegra20-spdif",
 	.probe = tegra20_spdif_probe,
 	.playback = {
 		.stream_name = "Playback",
 		.channels_min = 2,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
-				SNDRV_PCM_RATE_48000,
+			 SNDRV_PCM_RATE_48000,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,
 	},
 	.ops = &tegra20_spdif_dai_ops,
 };
 
 static const struct snd_soc_component_driver tegra20_spdif_component = {
-	.name		= DRV_NAME,
+	.name = "tegra20-spdif",
 };
 
 static bool tegra20_spdif_wr_rd_reg(struct device *dev, unsigned int reg)
@@ -260,7 +257,7 @@ static const struct regmap_config tegra20_spdif_regmap_config = {
 static int tegra20_spdif_platform_probe(struct platform_device *pdev)
 {
 	struct tegra20_spdif *spdif;
-	struct resource *mem, *dmareq;
+	struct resource *mem;
 	void __iomem *regs;
 	int ret;
 
@@ -273,27 +270,19 @@ static int tegra20_spdif_platform_probe(struct platform_device *pdev)
 
 	spdif->clk_spdif_out = devm_clk_get(&pdev->dev, "spdif_out");
 	if (IS_ERR(spdif->clk_spdif_out)) {
-		pr_err("Can't retrieve spdif clock\n");
-		ret = PTR_ERR(spdif->clk_spdif_out);
-		return ret;
+		dev_err(&pdev->dev, "Could not retrieve spdif clock\n");
+		return PTR_ERR(spdif->clk_spdif_out);
 	}
 
 	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 
-	dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0);
-	if (!dmareq) {
-		dev_err(&pdev->dev, "No DMA resource\n");
-		return -ENODEV;
-	}
-
 	spdif->regmap = devm_regmap_init_mmio(&pdev->dev, regs,
-					    &tegra20_spdif_regmap_config);
+					      &tegra20_spdif_regmap_config);
 	if (IS_ERR(spdif->regmap)) {
 		dev_err(&pdev->dev, "regmap init failed\n");
-		ret = PTR_ERR(spdif->regmap);
-		return ret;
+		return PTR_ERR(spdif->regmap);
 	}
 
 	spdif->playback_dma_data.addr = mem->start + TEGRA20_SPDIF_DATA_OUT;
@@ -306,7 +295,6 @@ static int tegra20_spdif_platform_probe(struct platform_device *pdev)
 					 &tegra20_spdif_dai, 1);
 	if (ret) {
 		dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
-		ret = -ENOMEM;
 		goto err_pm_disable;
 	}
 
@@ -349,14 +337,13 @@ MODULE_DEVICE_TABLE(of, tegra20_spdif_of_match);
 
 static struct platform_driver tegra20_spdif_driver = {
 	.driver = {
-		.name = DRV_NAME,
+		.name = "tegra20-spdif",
 		.pm = &tegra20_spdif_pm_ops,
 		.of_match_table = tegra20_spdif_of_match,
 	},
 	.probe = tegra20_spdif_platform_probe,
 	.remove = tegra20_spdif_platform_remove,
 };
-
 module_platform_driver(tegra20_spdif_driver);
 
 MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
-- 
2.33.1


  parent reply	other threads:[~2021-11-24 22:07 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-24 22:00 [PATCH v1 00/20] Support HDMI audio on NVIDIA Tegra20 Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 01/20] ASoC: dt-bindings: Add binding for Tegra20 S/PDIF Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 02/20] ASoC: dt-bindings: tegra20-i2s: Convert to schema Dmitry Osipenko
2021-11-25 21:26   ` Rob Herring
2021-11-26  1:08     ` Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 03/20] ASoC: dt-bindings: tegra20-i2s: Document new nvidia,fixed-parent-rate property Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 04/20] dt-bindings: host1x: Document optional HDMI sound-dai-cells Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 05/20] ASoC: tegra20-spdif: stop setting slave_id Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 06/20] ASoC: tegra20: spdif: Support device-tree Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 07/20] ASoC: tegra20: spdif: Set FIFO trigger level Dmitry Osipenko
2021-11-25 12:02   ` Mark Brown
2021-11-25 12:04     ` Dmitry Osipenko
2021-11-25 12:28       ` Mark Brown
2021-11-25 12:53         ` Dmitry Osipenko
2021-11-25 13:18           ` Mark Brown
2021-11-25 13:36             ` Dmitry Osipenko
2021-11-24 22:00 ` Dmitry Osipenko [this message]
2021-11-24 22:00 ` [PATCH v1 09/20] ASoC: tegra20: spdif: Use more resource-managed helpers Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 10/20] ASoC: tegra20: spdif: Reset hardware Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 11/20] ASoC: tegra20: spdif: Support system suspend Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 12/20] ASoC: tegra20: spdif: Filter out unsupported rates Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 13/20] ASoC: tegra20: i2s: " Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 14/20] drm/tegra: hdmi: Unwind tegra_hdmi_init() errors Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 15/20] drm/tegra: hdmi: Register audio CODEC on Tegra20 Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 16/20] ARM: tegra_defconfig: Enable S/PDIF driver Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 17/20] ARM: tegra: Add S/PDIF node to Tegra20 device-tree Dmitry Osipenko
2021-11-25 11:43   ` Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 18/20] ARM: tegra: Add HDMI audio graph " Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 19/20] ARM: tegra: acer-a500: Enable S/PDIF and HDMI audio Dmitry Osipenko
2021-11-24 22:00 ` [PATCH v1 20/20] ARM: tegra: paz00: " Dmitry Osipenko

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