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Message-Id: <20211124220057.15763-9-digetx@gmail.com>
Date: Thu, 25 Nov 2021 01:00:45 +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
Subject: [PATCH v1 08/20] ASoC: tegra20: spdif: Improve driver's code
- 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@...il.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@...dia.com>");
--
2.33.1
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