[PATCH 1/2] ASoC: SOF: imx: drop usage of the imx8_*_clocks API

[Laurentiu Mihalcea]

From: Laurentiu Mihalcea <laurentiu.mihalcea@xxxxxxx>

Currently, the driver has to keep track of all the clocks
it uses via an array of "struct clk_bulk_data", which doesn't
scale well and is unnecessary. As such, replace the usage of
the imx8_*_clocks with "devm_clk_bulk_get_all()" and friends.

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@xxxxxxx>
Reviewed-by: Iuliana Prodan <iuliana.prodan@xxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Daniel Baluta <daniel.baluta@xxxxxxx>
---
 sound/soc/sof/imx/imx8.c    | 41 +++++++++++++++---------------------
 sound/soc/sof/imx/imx8m.c   | 40 +++++++++++++++--------------------
 sound/soc/sof/imx/imx8ulp.c | 42 +++++++++++++++++--------------------
 3 files changed, 53 insertions(+), 70 deletions(-)

diff --git a/sound/soc/sof/imx/imx8.c b/sound/soc/sof/imx/imx8.c
index 07f51489d6c9..d65e09a927f6 100644
--- a/sound/soc/sof/imx/imx8.c
+++ b/sound/soc/sof/imx/imx8.c
@@ -41,13 +41,6 @@
 #define MBOX_OFFSET	0x800000
 #define MBOX_SIZE	0x1000
 
-/* DSP clocks */
-static struct clk_bulk_data imx8_dsp_clks[] = {
-	{ .id = "ipg" },
-	{ .id = "ocram" },
-	{ .id = "core" },
-};
-
 struct imx8_priv {
 	struct device *dev;
 	struct snd_sof_dev *sdev;
@@ -64,7 +57,8 @@ struct imx8_priv {
 	struct device **pd_dev;
 	struct device_link **link;
 
-	struct imx_clocks *clks;
+	struct clk_bulk_data *clks;
+	int clk_num;
 };
 
 static int imx8_get_mailbox_offset(struct snd_sof_dev *sdev)
@@ -196,10 +190,6 @@ static int imx8_probe(struct snd_sof_dev *sdev)
 	if (!priv)
 		return -ENOMEM;
 
-	priv->clks = devm_kzalloc(&pdev->dev, sizeof(*priv->clks), GFP_KERNEL);
-	if (!priv->clks)
-		return -ENOMEM;
-
 	sdev->num_cores = 1;
 	sdev->pdata->hw_pdata = priv;
 	priv->dev = sdev->dev;
@@ -313,17 +303,18 @@ static int imx8_probe(struct snd_sof_dev *sdev)
 	/* set default mailbox offset for FW ready message */
 	sdev->dsp_box.offset = MBOX_OFFSET;
 
-	/* init clocks info */
-	priv->clks->dsp_clks = imx8_dsp_clks;
-	priv->clks->num_dsp_clks = ARRAY_SIZE(imx8_dsp_clks);
-
-	ret = imx8_parse_clocks(sdev, priv->clks);
-	if (ret < 0)
+	ret = devm_clk_bulk_get_all(sdev->dev, &priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to fetch clocks: %d\n", ret);
 		goto exit_pdev_unregister;
+	}
+	priv->clk_num = ret;
 
-	ret = imx8_enable_clocks(sdev, priv->clks);
-	if (ret < 0)
+	ret = clk_bulk_prepare_enable(priv->clk_num, priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to enable clocks: %d\n", ret);
 		goto exit_pdev_unregister;
+	}
 
 	return 0;
 
@@ -343,7 +334,7 @@ static void imx8_remove(struct snd_sof_dev *sdev)
 	struct imx8_priv *priv = sdev->pdata->hw_pdata;
 	int i;
 
-	imx8_disable_clocks(sdev, priv->clks);
+	clk_bulk_disable_unprepare(priv->clk_num, priv->clks);
 	platform_device_unregister(priv->ipc_dev);
 
 	for (i = 0; i < priv->num_domains; i++) {
@@ -373,7 +364,7 @@ static void imx8_suspend(struct snd_sof_dev *sdev)
 	for (i = 0; i < DSP_MU_CHAN_NUM; i++)
 		imx_dsp_free_channel(priv->dsp_ipc, i);
 
-	imx8_disable_clocks(sdev, priv->clks);
+	clk_bulk_disable_unprepare(priv->clk_num, priv->clks);
 }
 
 static int imx8_resume(struct snd_sof_dev *sdev)
@@ -382,9 +373,11 @@ static int imx8_resume(struct snd_sof_dev *sdev)
 	int ret;
 	int i;
 
-	ret = imx8_enable_clocks(sdev, priv->clks);
-	if (ret < 0)
+	ret = clk_bulk_prepare_enable(priv->clk_num, priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to enable clocks: %d\n", ret);
 		return ret;
+	}
 
 	for (i = 0; i < DSP_MU_CHAN_NUM; i++)
 		imx_dsp_request_channel(priv->dsp_ipc, i);
diff --git a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c
index 222cd1467da6..3e0b88002b4f 100644
--- a/sound/soc/sof/imx/imx8m.c
+++ b/sound/soc/sof/imx/imx8m.c
@@ -26,12 +26,6 @@
 #define MBOX_OFFSET	0x800000
 #define MBOX_SIZE	0x1000
 
-static struct clk_bulk_data imx8m_dsp_clks[] = {
-	{ .id = "ipg" },
-	{ .id = "ocram" },
-	{ .id = "core" },
-};
-
 /* DAP registers */
 #define IMX8M_DAP_DEBUG                0x28800000
 #define IMX8M_DAP_DEBUG_SIZE   (64 * 1024)
@@ -54,7 +48,8 @@ struct imx8m_priv {
 	struct imx_dsp_ipc *dsp_ipc;
 	struct platform_device *ipc_dev;
 
-	struct imx_clocks *clks;
+	struct clk_bulk_data *clks;
+	int clk_num;
 
 	void __iomem *dap;
 	struct regmap *regmap;
@@ -163,10 +158,6 @@ static int imx8m_probe(struct snd_sof_dev *sdev)
 	if (!priv)
 		return -ENOMEM;
 
-	priv->clks = devm_kzalloc(&pdev->dev, sizeof(*priv->clks), GFP_KERNEL);
-	if (!priv->clks)
-		return -ENOMEM;
-
 	sdev->num_cores = 1;
 	sdev->pdata->hw_pdata = priv;
 	priv->dev = sdev->dev;
@@ -250,17 +241,18 @@ static int imx8m_probe(struct snd_sof_dev *sdev)
 		goto exit_pdev_unregister;
 	}
 
-	/* init clocks info */
-	priv->clks->dsp_clks = imx8m_dsp_clks;
-	priv->clks->num_dsp_clks = ARRAY_SIZE(imx8m_dsp_clks);
-
-	ret = imx8_parse_clocks(sdev, priv->clks);
-	if (ret < 0)
+	ret = devm_clk_bulk_get_all(sdev->dev, &priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to fetch clocks: %d\n", ret);
 		goto exit_pdev_unregister;
+	}
+	priv->clk_num = ret;
 
-	ret = imx8_enable_clocks(sdev, priv->clks);
-	if (ret < 0)
+	ret = clk_bulk_prepare_enable(priv->clk_num, priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to enable clocks: %d\n", ret);
 		goto exit_pdev_unregister;
+	}
 
 	return 0;
 
@@ -273,7 +265,7 @@ static void imx8m_remove(struct snd_sof_dev *sdev)
 {
 	struct imx8m_priv *priv = sdev->pdata->hw_pdata;
 
-	imx8_disable_clocks(sdev, priv->clks);
+	clk_bulk_disable_unprepare(priv->clk_num, priv->clks);
 	platform_device_unregister(priv->ipc_dev);
 }
 
@@ -336,9 +328,11 @@ static int imx8m_resume(struct snd_sof_dev *sdev)
 	int ret;
 	int i;
 
-	ret = imx8_enable_clocks(sdev, priv->clks);
-	if (ret < 0)
+	ret = clk_bulk_prepare_enable(priv->clk_num, priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to enable clocks: %d\n", ret);
 		return ret;
+	}
 
 	for (i = 0; i < DSP_MU_CHAN_NUM; i++)
 		imx_dsp_request_channel(priv->dsp_ipc, i);
@@ -354,7 +348,7 @@ static void imx8m_suspend(struct snd_sof_dev *sdev)
 	for (i = 0; i < DSP_MU_CHAN_NUM; i++)
 		imx_dsp_free_channel(priv->dsp_ipc, i);
 
-	imx8_disable_clocks(sdev, priv->clks);
+	clk_bulk_disable_unprepare(priv->clk_num, priv->clks);
 }
 
 static int imx8m_dsp_runtime_resume(struct snd_sof_dev *sdev)
diff --git a/sound/soc/sof/imx/imx8ulp.c b/sound/soc/sof/imx/imx8ulp.c
index 7b527ffde488..296fbf11f6d0 100644
--- a/sound/soc/sof/imx/imx8ulp.c
+++ b/sound/soc/sof/imx/imx8ulp.c
@@ -40,13 +40,6 @@
 #define MBOX_OFFSET		0x800000
 #define MBOX_SIZE		0x1000
 
-static struct clk_bulk_data imx8ulp_dsp_clks[] = {
-	{ .id = "core" },
-	{ .id = "ipg" },
-	{ .id = "ocram" },
-	{ .id = "mu" },
-};
-
 struct imx8ulp_priv {
 	struct device *dev;
 	struct snd_sof_dev *sdev;
@@ -56,7 +49,8 @@ struct imx8ulp_priv {
 	struct platform_device *ipc_dev;
 
 	struct regmap *regmap;
-	struct imx_clocks *clks;
+	struct clk_bulk_data *clks;
+	int clk_num;
 };
 
 static void imx8ulp_sim_lpav_start(struct imx8ulp_priv *priv)
@@ -175,10 +169,6 @@ static int imx8ulp_probe(struct snd_sof_dev *sdev)
 	if (!priv)
 		return -ENOMEM;
 
-	priv->clks = devm_kzalloc(&pdev->dev, sizeof(*priv->clks), GFP_KERNEL);
-	if (!priv->clks)
-		return -ENOMEM;
-
 	sdev->num_cores = 1;
 	sdev->pdata->hw_pdata = priv;
 	priv->dev = sdev->dev;
@@ -259,16 +249,18 @@ static int imx8ulp_probe(struct snd_sof_dev *sdev)
 		goto exit_pdev_unregister;
 	}
 
-	priv->clks->dsp_clks = imx8ulp_dsp_clks;
-	priv->clks->num_dsp_clks = ARRAY_SIZE(imx8ulp_dsp_clks);
-
-	ret = imx8_parse_clocks(sdev, priv->clks);
-	if (ret < 0)
+	ret = devm_clk_bulk_get_all(sdev->dev, &priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to fetch clocks: %d\n", ret);
 		goto exit_pdev_unregister;
+	}
+	priv->clk_num = ret;
 
-	ret = imx8_enable_clocks(sdev, priv->clks);
-	if (ret < 0)
+	ret = clk_bulk_prepare_enable(priv->clk_num, priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to enable clocks: %d\n", ret);
 		goto exit_pdev_unregister;
+	}
 
 	return 0;
 
@@ -282,7 +274,7 @@ static void imx8ulp_remove(struct snd_sof_dev *sdev)
 {
 	struct imx8ulp_priv *priv = sdev->pdata->hw_pdata;
 
-	imx8_disable_clocks(sdev, priv->clks);
+	clk_bulk_disable_unprepare(priv->clk_num, priv->clks);
 	platform_device_unregister(priv->ipc_dev);
 }
 
@@ -303,7 +295,7 @@ static int imx8ulp_suspend(struct snd_sof_dev *sdev)
 	for (i = 0; i < DSP_MU_CHAN_NUM; i++)
 		imx_dsp_free_channel(priv->dsp_ipc, i);
 
-	imx8_disable_clocks(sdev, priv->clks);
+	clk_bulk_disable_unprepare(priv->clk_num, priv->clks);
 
 	return 0;
 }
@@ -311,9 +303,13 @@ static int imx8ulp_suspend(struct snd_sof_dev *sdev)
 static int imx8ulp_resume(struct snd_sof_dev *sdev)
 {
 	struct imx8ulp_priv *priv = (struct imx8ulp_priv *)sdev->pdata->hw_pdata;
-	int i;
+	int i, ret;
 
-	imx8_enable_clocks(sdev, priv->clks);
+	ret = clk_bulk_prepare_enable(priv->clk_num, priv->clks);
+	if (ret < 0) {
+		dev_err(sdev->dev, "failed to enable clocks: %d\n", ret);
+		return ret;
+	}
 
 	for (i = 0; i < DSP_MU_CHAN_NUM; i++)
 		imx_dsp_request_channel(priv->dsp_ipc, i);
-- 
2.34.1