[PATCH v2 1/5] ALSA: hda/tegra: Use clk_bulk helpers

From: Dmitry Osipenko
Date: Fri Jan 15 2021 - 09:03:05 EST


Use clk_bulk helpers to make code cleaner.

Tested-by: Peter Geis <pgwipeout@xxxxxxxxx>
Tested-by: Nicolas Chauvet <kwizart@xxxxxxxxx>
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
sound/pci/hda/hda_tegra.c | 68 ++++++---------------------------------
1 file changed, 9 insertions(+), 59 deletions(-)

diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index 361cf2041911..a25bf7083c28 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -70,9 +70,8 @@
struct hda_tegra {
struct azx chip;
struct device *dev;
- struct clk *hda_clk;
- struct clk *hda2codec_2x_clk;
- struct clk *hda2hdmi_clk;
+ struct clk_bulk_data clocks[3];
+ unsigned int nclocks;
void __iomem *regs;
struct work_struct probe_work;
};
@@ -113,36 +112,6 @@ static void hda_tegra_init(struct hda_tegra *hda)
writel(v, hda->regs + HDA_IPFS_INTR_MASK);
}

-static int hda_tegra_enable_clocks(struct hda_tegra *data)
-{
- int rc;
-
- rc = clk_prepare_enable(data->hda_clk);
- if (rc)
- return rc;
- rc = clk_prepare_enable(data->hda2codec_2x_clk);
- if (rc)
- goto disable_hda;
- rc = clk_prepare_enable(data->hda2hdmi_clk);
- if (rc)
- goto disable_codec_2x;
-
- return 0;
-
-disable_codec_2x:
- clk_disable_unprepare(data->hda2codec_2x_clk);
-disable_hda:
- clk_disable_unprepare(data->hda_clk);
- return rc;
-}
-
-static void hda_tegra_disable_clocks(struct hda_tegra *data)
-{
- clk_disable_unprepare(data->hda2hdmi_clk);
- clk_disable_unprepare(data->hda2codec_2x_clk);
- clk_disable_unprepare(data->hda_clk);
-}
-
/*
* power management
*/
@@ -186,7 +155,7 @@ static int __maybe_unused hda_tegra_runtime_suspend(struct device *dev)
azx_stop_chip(chip);
azx_enter_link_reset(chip);
}
- hda_tegra_disable_clocks(hda);
+ clk_bulk_disable_unprepare(hda->nclocks, hda->clocks);

return 0;
}
@@ -198,7 +167,7 @@ static int __maybe_unused hda_tegra_runtime_resume(struct device *dev)
struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
int rc;

- rc = hda_tegra_enable_clocks(hda);
+ rc = clk_bulk_prepare_enable(hda->nclocks, hda->clocks);
if (rc != 0)
return rc;
if (chip && chip->running) {
@@ -268,29 +237,6 @@ static int hda_tegra_init_chip(struct azx *chip, struct platform_device *pdev)
return 0;
}

-static int hda_tegra_init_clk(struct hda_tegra *hda)
-{
- struct device *dev = hda->dev;
-
- hda->hda_clk = devm_clk_get(dev, "hda");
- if (IS_ERR(hda->hda_clk)) {
- dev_err(dev, "failed to get hda clock\n");
- return PTR_ERR(hda->hda_clk);
- }
- hda->hda2codec_2x_clk = devm_clk_get(dev, "hda2codec_2x");
- if (IS_ERR(hda->hda2codec_2x_clk)) {
- dev_err(dev, "failed to get hda2codec_2x clock\n");
- return PTR_ERR(hda->hda2codec_2x_clk);
- }
- hda->hda2hdmi_clk = devm_clk_get(dev, "hda2hdmi");
- if (IS_ERR(hda->hda2hdmi_clk)) {
- dev_err(dev, "failed to get hda2hdmi clock\n");
- return PTR_ERR(hda->hda2hdmi_clk);
- }
-
- return 0;
-}
-
static int hda_tegra_first_init(struct azx *chip, struct platform_device *pdev)
{
struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
@@ -495,7 +441,11 @@ static int hda_tegra_probe(struct platform_device *pdev)
return err;
}

- err = hda_tegra_init_clk(hda);
+ hda->clocks[hda->nclocks++].id = "hda";
+ hda->clocks[hda->nclocks++].id = "hda2hdmi";
+ hda->clocks[hda->nclocks++].id = "hda2codec_2x";
+
+ err = devm_clk_bulk_get(&pdev->dev, hda->nclocks, hda->clocks);
if (err < 0)
goto out_free;

--
2.29.2