From: Leilk Liu <leilk.liu@mediatek.com>
To: Mark Brown <broonie@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-spi@vger.kernel.org>, <linux-mediatek@lists.infradead.org>,
Leilk Liu <leilk.liu@mediatek.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Subject: [PATCH V6 3/3] spi: mediatek: support hclk
Date: Mon, 21 Mar 2022 09:39:22 +0800 [thread overview]
Message-ID: <20220321013922.24067-4-leilk.liu@mediatek.com> (raw)
In-Reply-To: <20220321013922.24067-1-leilk.liu@mediatek.com>
this patch adds hclk support.
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/spi/spi-mt65xx.c | 85 ++++++++++++++++++++++++++++++++--------
1 file changed, 69 insertions(+), 16 deletions(-)
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 0f91c176b878..99ce570a88a7 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -129,7 +129,7 @@ struct mtk_spi {
u32 state;
int pad_num;
u32 *pad_sel;
- struct clk *parent_clk, *sel_clk, *spi_clk;
+ struct clk *parent_clk, *sel_clk, *spi_clk, *spi_hclk;
struct spi_transfer *cur_transfer;
u32 xfer_len;
u32 num_xfered;
@@ -1204,25 +1204,40 @@ static int mtk_spi_probe(struct platform_device *pdev)
goto err_put_master;
}
+ mdata->spi_hclk = devm_clk_get_optional(&pdev->dev, "hclk");
+ if (IS_ERR(mdata->spi_hclk)) {
+ ret = PTR_ERR(mdata->spi_hclk);
+ dev_err(&pdev->dev, "failed to get hclk: %d\n", ret);
+ goto err_put_master;
+ }
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to enable hclk (%d)\n", ret);
+ goto err_put_master;
+ }
+
ret = clk_prepare_enable(mdata->spi_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to enable spi_clk (%d)\n", ret);
- goto err_put_master;
+ goto err_disable_spi_hclk;
}
ret = clk_set_parent(mdata->sel_clk, mdata->parent_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to clk_set_parent (%d)\n", ret);
- clk_disable_unprepare(mdata->spi_clk);
- goto err_put_master;
+ goto err_disable_spi_clk;
}
mdata->spi_clk_hz = clk_get_rate(mdata->spi_clk);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_disable(mdata->spi_clk);
- else
+ clk_disable(mdata->spi_hclk);
+ } else {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
pm_runtime_enable(&pdev->dev);
@@ -1262,6 +1277,10 @@ static int mtk_spi_probe(struct platform_device *pdev)
err_disable_runtime_pm:
pm_runtime_disable(&pdev->dev);
+err_disable_spi_clk:
+ clk_disable_unprepare(mdata->spi_clk);
+err_disable_spi_hclk:
+ clk_disable_unprepare(mdata->spi_hclk);
err_put_master:
spi_master_put(master);
@@ -1277,8 +1296,10 @@ static int mtk_spi_remove(struct platform_device *pdev)
mtk_spi_reset(mdata);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_unprepare(mdata->spi_clk);
+ clk_unprepare(mdata->spi_hclk);
+ }
return 0;
}
@@ -1294,8 +1315,10 @@ static int mtk_spi_suspend(struct device *dev)
if (ret)
return ret;
- if (!pm_runtime_suspended(dev))
+ if (!pm_runtime_suspended(dev)) {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return ret;
}
@@ -1312,11 +1335,20 @@ static int mtk_spi_resume(struct device *dev)
dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
return ret;
}
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_hclk (%d)\n", ret);
+ clk_disable_unprepare(mdata->spi_clk);
+ return ret;
+ }
}
ret = spi_master_resume(master);
- if (ret < 0)
+ if (ret < 0) {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return ret;
}
@@ -1328,10 +1360,13 @@ static int mtk_spi_runtime_suspend(struct device *dev)
struct spi_master *master = dev_get_drvdata(dev);
struct mtk_spi *mdata = spi_master_get_devdata(master);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_disable(mdata->spi_clk);
- else
+ clk_disable(mdata->spi_hclk);
+ } else {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return 0;
}
@@ -1342,13 +1377,31 @@ static int mtk_spi_runtime_resume(struct device *dev)
struct mtk_spi *mdata = spi_master_get_devdata(master);
int ret;
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
ret = clk_enable(mdata->spi_clk);
- else
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
+ return ret;
+ }
+ ret = clk_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_hclk (%d)\n", ret);
+ clk_disable(mdata->spi_clk);
+ return ret;
+ }
+ } else {
ret = clk_prepare_enable(mdata->spi_clk);
- if (ret < 0) {
- dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
- return ret;
+ if (ret < 0) {
+ dev_err(dev, "failed to prepare_enable spi_clk (%d)\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to prepare_enable spi_hclk (%d)\n", ret);
+ clk_disable_unprepare(mdata->spi_clk);
+ return ret;
+ }
}
return 0;
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Leilk Liu <leilk.liu@mediatek.com>
To: Mark Brown <broonie@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-spi@vger.kernel.org>, <linux-mediatek@lists.infradead.org>,
Leilk Liu <leilk.liu@mediatek.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Subject: [PATCH V6 3/3] spi: mediatek: support hclk
Date: Mon, 21 Mar 2022 09:39:22 +0800 [thread overview]
Message-ID: <20220321013922.24067-4-leilk.liu@mediatek.com> (raw)
In-Reply-To: <20220321013922.24067-1-leilk.liu@mediatek.com>
this patch adds hclk support.
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/spi/spi-mt65xx.c | 85 ++++++++++++++++++++++++++++++++--------
1 file changed, 69 insertions(+), 16 deletions(-)
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 0f91c176b878..99ce570a88a7 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -129,7 +129,7 @@ struct mtk_spi {
u32 state;
int pad_num;
u32 *pad_sel;
- struct clk *parent_clk, *sel_clk, *spi_clk;
+ struct clk *parent_clk, *sel_clk, *spi_clk, *spi_hclk;
struct spi_transfer *cur_transfer;
u32 xfer_len;
u32 num_xfered;
@@ -1204,25 +1204,40 @@ static int mtk_spi_probe(struct platform_device *pdev)
goto err_put_master;
}
+ mdata->spi_hclk = devm_clk_get_optional(&pdev->dev, "hclk");
+ if (IS_ERR(mdata->spi_hclk)) {
+ ret = PTR_ERR(mdata->spi_hclk);
+ dev_err(&pdev->dev, "failed to get hclk: %d\n", ret);
+ goto err_put_master;
+ }
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to enable hclk (%d)\n", ret);
+ goto err_put_master;
+ }
+
ret = clk_prepare_enable(mdata->spi_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to enable spi_clk (%d)\n", ret);
- goto err_put_master;
+ goto err_disable_spi_hclk;
}
ret = clk_set_parent(mdata->sel_clk, mdata->parent_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to clk_set_parent (%d)\n", ret);
- clk_disable_unprepare(mdata->spi_clk);
- goto err_put_master;
+ goto err_disable_spi_clk;
}
mdata->spi_clk_hz = clk_get_rate(mdata->spi_clk);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_disable(mdata->spi_clk);
- else
+ clk_disable(mdata->spi_hclk);
+ } else {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
pm_runtime_enable(&pdev->dev);
@@ -1262,6 +1277,10 @@ static int mtk_spi_probe(struct platform_device *pdev)
err_disable_runtime_pm:
pm_runtime_disable(&pdev->dev);
+err_disable_spi_clk:
+ clk_disable_unprepare(mdata->spi_clk);
+err_disable_spi_hclk:
+ clk_disable_unprepare(mdata->spi_hclk);
err_put_master:
spi_master_put(master);
@@ -1277,8 +1296,10 @@ static int mtk_spi_remove(struct platform_device *pdev)
mtk_spi_reset(mdata);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_unprepare(mdata->spi_clk);
+ clk_unprepare(mdata->spi_hclk);
+ }
return 0;
}
@@ -1294,8 +1315,10 @@ static int mtk_spi_suspend(struct device *dev)
if (ret)
return ret;
- if (!pm_runtime_suspended(dev))
+ if (!pm_runtime_suspended(dev)) {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return ret;
}
@@ -1312,11 +1335,20 @@ static int mtk_spi_resume(struct device *dev)
dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
return ret;
}
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_hclk (%d)\n", ret);
+ clk_disable_unprepare(mdata->spi_clk);
+ return ret;
+ }
}
ret = spi_master_resume(master);
- if (ret < 0)
+ if (ret < 0) {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return ret;
}
@@ -1328,10 +1360,13 @@ static int mtk_spi_runtime_suspend(struct device *dev)
struct spi_master *master = dev_get_drvdata(dev);
struct mtk_spi *mdata = spi_master_get_devdata(master);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_disable(mdata->spi_clk);
- else
+ clk_disable(mdata->spi_hclk);
+ } else {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return 0;
}
@@ -1342,13 +1377,31 @@ static int mtk_spi_runtime_resume(struct device *dev)
struct mtk_spi *mdata = spi_master_get_devdata(master);
int ret;
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
ret = clk_enable(mdata->spi_clk);
- else
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
+ return ret;
+ }
+ ret = clk_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_hclk (%d)\n", ret);
+ clk_disable(mdata->spi_clk);
+ return ret;
+ }
+ } else {
ret = clk_prepare_enable(mdata->spi_clk);
- if (ret < 0) {
- dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
- return ret;
+ if (ret < 0) {
+ dev_err(dev, "failed to prepare_enable spi_clk (%d)\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to prepare_enable spi_hclk (%d)\n", ret);
+ clk_disable_unprepare(mdata->spi_clk);
+ return ret;
+ }
}
return 0;
--
2.25.1
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: Leilk Liu <leilk.liu@mediatek.com>
To: Mark Brown <broonie@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-spi@vger.kernel.org>, <linux-mediatek@lists.infradead.org>,
Leilk Liu <leilk.liu@mediatek.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Subject: [PATCH V6 3/3] spi: mediatek: support hclk
Date: Mon, 21 Mar 2022 09:39:22 +0800 [thread overview]
Message-ID: <20220321013922.24067-4-leilk.liu@mediatek.com> (raw)
In-Reply-To: <20220321013922.24067-1-leilk.liu@mediatek.com>
this patch adds hclk support.
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/spi/spi-mt65xx.c | 85 ++++++++++++++++++++++++++++++++--------
1 file changed, 69 insertions(+), 16 deletions(-)
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 0f91c176b878..99ce570a88a7 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -129,7 +129,7 @@ struct mtk_spi {
u32 state;
int pad_num;
u32 *pad_sel;
- struct clk *parent_clk, *sel_clk, *spi_clk;
+ struct clk *parent_clk, *sel_clk, *spi_clk, *spi_hclk;
struct spi_transfer *cur_transfer;
u32 xfer_len;
u32 num_xfered;
@@ -1204,25 +1204,40 @@ static int mtk_spi_probe(struct platform_device *pdev)
goto err_put_master;
}
+ mdata->spi_hclk = devm_clk_get_optional(&pdev->dev, "hclk");
+ if (IS_ERR(mdata->spi_hclk)) {
+ ret = PTR_ERR(mdata->spi_hclk);
+ dev_err(&pdev->dev, "failed to get hclk: %d\n", ret);
+ goto err_put_master;
+ }
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to enable hclk (%d)\n", ret);
+ goto err_put_master;
+ }
+
ret = clk_prepare_enable(mdata->spi_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to enable spi_clk (%d)\n", ret);
- goto err_put_master;
+ goto err_disable_spi_hclk;
}
ret = clk_set_parent(mdata->sel_clk, mdata->parent_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to clk_set_parent (%d)\n", ret);
- clk_disable_unprepare(mdata->spi_clk);
- goto err_put_master;
+ goto err_disable_spi_clk;
}
mdata->spi_clk_hz = clk_get_rate(mdata->spi_clk);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_disable(mdata->spi_clk);
- else
+ clk_disable(mdata->spi_hclk);
+ } else {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
pm_runtime_enable(&pdev->dev);
@@ -1262,6 +1277,10 @@ static int mtk_spi_probe(struct platform_device *pdev)
err_disable_runtime_pm:
pm_runtime_disable(&pdev->dev);
+err_disable_spi_clk:
+ clk_disable_unprepare(mdata->spi_clk);
+err_disable_spi_hclk:
+ clk_disable_unprepare(mdata->spi_hclk);
err_put_master:
spi_master_put(master);
@@ -1277,8 +1296,10 @@ static int mtk_spi_remove(struct platform_device *pdev)
mtk_spi_reset(mdata);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_unprepare(mdata->spi_clk);
+ clk_unprepare(mdata->spi_hclk);
+ }
return 0;
}
@@ -1294,8 +1315,10 @@ static int mtk_spi_suspend(struct device *dev)
if (ret)
return ret;
- if (!pm_runtime_suspended(dev))
+ if (!pm_runtime_suspended(dev)) {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return ret;
}
@@ -1312,11 +1335,20 @@ static int mtk_spi_resume(struct device *dev)
dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
return ret;
}
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_hclk (%d)\n", ret);
+ clk_disable_unprepare(mdata->spi_clk);
+ return ret;
+ }
}
ret = spi_master_resume(master);
- if (ret < 0)
+ if (ret < 0) {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return ret;
}
@@ -1328,10 +1360,13 @@ static int mtk_spi_runtime_suspend(struct device *dev)
struct spi_master *master = dev_get_drvdata(dev);
struct mtk_spi *mdata = spi_master_get_devdata(master);
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
clk_disable(mdata->spi_clk);
- else
+ clk_disable(mdata->spi_hclk);
+ } else {
clk_disable_unprepare(mdata->spi_clk);
+ clk_disable_unprepare(mdata->spi_hclk);
+ }
return 0;
}
@@ -1342,13 +1377,31 @@ static int mtk_spi_runtime_resume(struct device *dev)
struct mtk_spi *mdata = spi_master_get_devdata(master);
int ret;
- if (mdata->dev_comp->no_need_unprepare)
+ if (mdata->dev_comp->no_need_unprepare) {
ret = clk_enable(mdata->spi_clk);
- else
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
+ return ret;
+ }
+ ret = clk_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable spi_hclk (%d)\n", ret);
+ clk_disable(mdata->spi_clk);
+ return ret;
+ }
+ } else {
ret = clk_prepare_enable(mdata->spi_clk);
- if (ret < 0) {
- dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
- return ret;
+ if (ret < 0) {
+ dev_err(dev, "failed to prepare_enable spi_clk (%d)\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(mdata->spi_hclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to prepare_enable spi_hclk (%d)\n", ret);
+ clk_disable_unprepare(mdata->spi_clk);
+ return ret;
+ }
}
return 0;
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-03-21 1:39 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-21 1:39 [PATCH V6 0/3] spi: mediatek: add single/quad mode support Leilk Liu
2022-03-21 1:39 ` Leilk Liu
2022-03-21 1:39 ` Leilk Liu
2022-03-21 1:39 ` [PATCH V6 1/3] spi: mediatek: add spi memory support for ipm design Leilk Liu
2022-03-21 1:39 ` Leilk Liu
2022-03-21 1:39 ` Leilk Liu
2022-03-21 1:39 ` [PATCH V6 2/3] dt-bindings: spi: support hclk Leilk Liu
2022-03-21 1:39 ` Leilk Liu
2022-03-21 1:39 ` Leilk Liu
2022-03-21 23:30 ` Rob Herring
2022-03-21 23:30 ` Rob Herring
2022-03-21 23:30 ` Rob Herring
2022-03-21 1:39 ` Leilk Liu [this message]
2022-03-21 1:39 ` [PATCH V6 3/3] spi: mediatek: " Leilk Liu
2022-03-21 1:39 ` Leilk Liu
2022-04-05 9:32 ` [PATCH V6 0/3] spi: mediatek: add single/quad mode support Mark Brown
2022-04-05 9:32 ` Mark Brown
2022-04-05 9:32 ` Mark Brown
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