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ASoC: rockchip: spdif: Handle clk by pm runtime 

This patch handle the clk by pm runtime mechanism to simplify
the clk management.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Link: https://lore.kernel.org/r/1594635960-67855-1-git-send-email-sugar.zhang@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sugar Zhang 2020-07-13 18:26:00 +08:00 committed by Mark Brown
parent 1c62ec5f1a
commit f50d67f9ef
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 17 additions and 42 deletions
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59
sound/soc/rockchip/rockchip_spdif.c
View File

@ -306,44 +306,22 @@ static int rk_spdif_probe(struct platform_device *pdev)
return -ENOMEM;
spdif->hclk = devm_clk_get(&pdev->dev, "hclk");
if (IS_ERR(spdif->hclk)) {
dev_err(&pdev->dev, "Can't retrieve rk_spdif bus clock\n");
if (IS_ERR(spdif->hclk))
return PTR_ERR(spdif->hclk);
}
ret = clk_prepare_enable(spdif->hclk);
if (ret) {
dev_err(spdif->dev, "hclock enable failed %d\n", ret);
return ret;
}
spdif->mclk = devm_clk_get(&pdev->dev, "mclk");
if (IS_ERR(spdif->mclk)) {
dev_err(&pdev->dev, "Can't retrieve rk_spdif master clock\n");
ret = PTR_ERR(spdif->mclk);
goto err_disable_hclk;
}
ret = clk_prepare_enable(spdif->mclk);
if (ret) {
dev_err(spdif->dev, "clock enable failed %d\n", ret);
goto err_disable_clocks;
}
if (IS_ERR(spdif->mclk))
return PTR_ERR(spdif->mclk);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(regs)) {
ret = PTR_ERR(regs);
goto err_disable_clocks;
}
if (IS_ERR(regs))
return PTR_ERR(regs);
spdif->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "hclk", regs,
&rk_spdif_regmap_config);
if (IS_ERR(spdif->regmap)) {
dev_err(&pdev->dev,
"Failed to initialise managed register map\n");
ret = PTR_ERR(spdif->regmap);
goto err_disable_clocks;
}
if (IS_ERR(spdif->regmap))
return PTR_ERR(spdif->regmap);
spdif->playback_dma_data.addr = res->start + SPDIF_SMPDR;
spdif->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
@ -352,47 +330,44 @@ static int rk_spdif_probe(struct platform_device *pdev)
spdif->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, spdif);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
pm_request_idle(&pdev->dev);
if (!pm_runtime_enabled(&pdev->dev)) {
ret = rk_spdif_runtime_resume(&pdev->dev);
if (ret)
goto err_pm_runtime;
}
ret = devm_snd_soc_register_component(&pdev->dev,
&rk_spdif_component,
&rk_spdif_dai, 1);
if (ret) {
dev_err(&pdev->dev, "Could not register DAI\n");
goto err_pm_runtime;
goto err_pm_suspend;
}
ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
if (ret) {
dev_err(&pdev->dev, "Could not register PCM\n");
goto err_pm_runtime;
goto err_pm_suspend;
}
return 0;
err_pm_suspend:
if (!pm_runtime_status_suspended(&pdev->dev))
rk_spdif_runtime_suspend(&pdev->dev);
err_pm_runtime:
pm_runtime_disable(&pdev->dev);
err_disable_clocks:
clk_disable_unprepare(spdif->mclk);
err_disable_hclk:
clk_disable_unprepare(spdif->hclk);
return ret;
}
static int rk_spdif_remove(struct platform_device *pdev)
{
struct rk_spdif_dev *spdif = dev_get_drvdata(&pdev->dev);
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
rk_spdif_runtime_suspend(&pdev->dev);
clk_disable_unprepare(spdif->mclk);
clk_disable_unprepare(spdif->hclk);
return 0;
}