[PATCH 0/7] irqchip: Use devm_platform_ioremap_resource()

[PATCH 0/7] irqchip: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

Hi All,

This is just a minor change to promote using of this api
devm_platform_ioremap_resource() and nothing else functional
change it does.

Also, there are patches where only ioremap is used without requesting
the mem region so this devm_platform_ioremap_resource() take cares all
of that in single call.


Mukesh Ojha (7):
  irqchip/irq-uniphier-aidet: Use devm_platform_ioremap_resource()
  irqchip/irq-imgpdc.c: Use devm_platform_ioremap_resource()
  irqchip/irq-ts4800.c: Use devm_platform_ioremap_resource()
  irqchip/irq-mbigen.c: Use devm_platform_ioremap_resource()
  irqchip/irq-mvebu-icu: Use devm_platform_ioremap_resource()
  irqchip/irq-mvebu-pic: Use devm_platform_ioremap_resource()
  irqchip/irq-mvebu-sei: Use devm_platform_ioremap_resource()

 drivers/irqchip/irq-imgpdc.c         | 10 +---------
 drivers/irqchip/irq-ls-scfg-msi.c    |  4 +---
 drivers/irqchip/irq-mbigen.c         |  9 +--------
 drivers/irqchip/irq-mvebu-icu.c      |  4 +---
 drivers/irqchip/irq-mvebu-pic.c      |  4 +---
 drivers/irqchip/irq-mvebu-sei.c      |  3 +--
 drivers/irqchip/irq-ts4800.c         |  4 +---
 drivers/irqchip/irq-uniphier-aidet.c |  4 +---
 8 files changed, 8 insertions(+), 34 deletions(-)

-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH 0/7] irqchip: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

Hi All,

This is just a minor change to promote using of this api
devm_platform_ioremap_resource() and nothing else functional
change it does.

Also, there are patches where only ioremap is used without requesting
the mem region so this devm_platform_ioremap_resource() take cares all
of that in single call.


Mukesh Ojha (7):
  irqchip/irq-uniphier-aidet: Use devm_platform_ioremap_resource()
  irqchip/irq-imgpdc.c: Use devm_platform_ioremap_resource()
  irqchip/irq-ts4800.c: Use devm_platform_ioremap_resource()
  irqchip/irq-mbigen.c: Use devm_platform_ioremap_resource()
  irqchip/irq-mvebu-icu: Use devm_platform_ioremap_resource()
  irqchip/irq-mvebu-pic: Use devm_platform_ioremap_resource()
  irqchip/irq-mvebu-sei: Use devm_platform_ioremap_resource()

 drivers/irqchip/irq-imgpdc.c         | 10 +---------
 drivers/irqchip/irq-ls-scfg-msi.c    |  4 +---
 drivers/irqchip/irq-mbigen.c         |  9 +--------
 drivers/irqchip/irq-mvebu-icu.c      |  4 +---
 drivers/irqchip/irq-mvebu-pic.c      |  4 +---
 drivers/irqchip/irq-mvebu-sei.c      |  3 +--
 drivers/irqchip/irq-ts4800.c         |  4 +---
 drivers/irqchip/irq-uniphier-aidet.c |  4 +---
 8 files changed, 8 insertions(+), 34 deletions(-)

-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH 1/7] irqchip/irq-uniphier-aidet: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-uniphier-aidet.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-uniphier-aidet.c b/drivers/irqchip/irq-uniphier-aidet.c
index 7ba7f25..1a77268 100644
--- a/drivers/irqchip/irq-uniphier-aidet.c
+++ b/drivers/irqchip/irq-uniphier-aidet.c
@@ -174,7 +174,6 @@ static int uniphier_aidet_probe(struct platform_device *pdev)
 	struct device_node *parent_np;
 	struct irq_domain *parent_domain;
 	struct uniphier_aidet_priv *priv;
-	struct resource *res;
 
 	parent_np = of_irq_find_parent(dev->of_node);
 	if (!parent_np)
@@ -189,8 +188,7 @@ static int uniphier_aidet_probe(struct platform_device *pdev)
 	if (!priv)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->reg_base = devm_ioremap_resource(dev, res);
+	priv->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(priv->reg_base))
 		return PTR_ERR(priv->reg_base);
 
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH 1/7] irqchip/irq-uniphier-aidet: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-uniphier-aidet.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-uniphier-aidet.c b/drivers/irqchip/irq-uniphier-aidet.c
index 7ba7f25..1a77268 100644
--- a/drivers/irqchip/irq-uniphier-aidet.c
+++ b/drivers/irqchip/irq-uniphier-aidet.c
@@ -174,7 +174,6 @@ static int uniphier_aidet_probe(struct platform_device *pdev)
 	struct device_node *parent_np;
 	struct irq_domain *parent_domain;
 	struct uniphier_aidet_priv *priv;
-	struct resource *res;
 
 	parent_np = of_irq_find_parent(dev->of_node);
 	if (!parent_np)
@@ -189,8 +188,7 @@ static int uniphier_aidet_probe(struct platform_device *pdev)
 	if (!priv)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->reg_base = devm_ioremap_resource(dev, res);
+	priv->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(priv->reg_base))
 		return PTR_ERR(priv->reg_base);
 
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH 2/7] irqchip/irq-imgpdc.c: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-imgpdc.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
index d00489a..8904a5f 100644
--- a/drivers/irqchip/irq-imgpdc.c
+++ b/drivers/irqchip/irq-imgpdc.c
@@ -307,13 +307,6 @@ static int pdc_intc_probe(struct platform_device *pdev)
 	if (!node)
 		return -ENOENT;
 
-	/* Get registers */
-	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res_regs == NULL) {
-		dev_err(&pdev->dev, "cannot find registers resource\n");
-		return -ENOENT;
-	}
-
 	/* Allocate driver data */
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv) {
@@ -324,8 +317,7 @@ static int pdc_intc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, priv);
 
 	/* Ioremap the registers */
-	priv->pdc_base = devm_ioremap(&pdev->dev, res_regs->start,
-				      resource_size(res_regs));
+	priv->pdc_base = devm_platform_ioremap_resource(pdev, 0);
 	if (!priv->pdc_base)
 		return -EIO;
 
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH 2/7] irqchip/irq-imgpdc.c: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-imgpdc.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
index d00489a..8904a5f 100644
--- a/drivers/irqchip/irq-imgpdc.c
+++ b/drivers/irqchip/irq-imgpdc.c
@@ -307,13 +307,6 @@ static int pdc_intc_probe(struct platform_device *pdev)
 	if (!node)
 		return -ENOENT;
 
-	/* Get registers */
-	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res_regs == NULL) {
-		dev_err(&pdev->dev, "cannot find registers resource\n");
-		return -ENOENT;
-	}
-
 	/* Allocate driver data */
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv) {
@@ -324,8 +317,7 @@ static int pdc_intc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, priv);
 
 	/* Ioremap the registers */
-	priv->pdc_base = devm_ioremap(&pdev->dev, res_regs->start,
-				      resource_size(res_regs));
+	priv->pdc_base = devm_platform_ioremap_resource(pdev, 0);
 	if (!priv->pdc_base)
 		return -EIO;
 
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH 3/7] irqchip/irq-ts4800.c: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-ts4800.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-ts4800.c b/drivers/irqchip/irq-ts4800.c
index 2325fb3..589a8a1 100644
--- a/drivers/irqchip/irq-ts4800.c
+++ b/drivers/irqchip/irq-ts4800.c
@@ -94,15 +94,13 @@ static int ts4800_ic_probe(struct platform_device *pdev)
 	struct device_node *node = pdev->dev.of_node;
 	struct ts4800_irq_data *data;
 	struct irq_chip *irq_chip;
-	struct resource *res;
 	int parent_irq;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	data->base = devm_ioremap_resource(&pdev->dev, res);
+	data->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(data->base))
 		return PTR_ERR(data->base);
 
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH 3/7] irqchip/irq-ts4800.c: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-ts4800.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-ts4800.c b/drivers/irqchip/irq-ts4800.c
index 2325fb3..589a8a1 100644
--- a/drivers/irqchip/irq-ts4800.c
+++ b/drivers/irqchip/irq-ts4800.c
@@ -94,15 +94,13 @@ static int ts4800_ic_probe(struct platform_device *pdev)
 	struct device_node *node = pdev->dev.of_node;
 	struct ts4800_irq_data *data;
 	struct irq_chip *irq_chip;
-	struct resource *res;
 	int parent_irq;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	data->base = devm_ioremap_resource(&pdev->dev, res);
+	data->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(data->base))
 		return PTR_ERR(data->base);
 
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH 4/7] irqchip/irq-mbigen.c: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-ls-scfg-msi.c | 4 +---
 drivers/irqchip/irq-mbigen.c      | 9 +--------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c
index c671b32..aec5a2f 100644
--- a/drivers/irqchip/irq-ls-scfg-msi.c
+++ b/drivers/irqchip/irq-ls-scfg-msi.c
@@ -336,7 +336,6 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
 {
 	const struct of_device_id *match;
 	struct ls_scfg_msi *msi_data;
-	struct resource *res;
 	int i, ret;
 
 	match = of_match_device(ls_scfg_msi_id, &pdev->dev);
@@ -349,8 +348,7 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
 
 	msi_data->cfg = (struct ls_scfg_msi_cfg *) match->data;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	msi_data->regs = devm_ioremap_resource(&pdev->dev, res);
+	msi_data->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(msi_data->regs)) {
 		dev_err(&pdev->dev, "failed to initialize 'regs'\n");
 		return PTR_ERR(msi_data->regs);
diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c
index 98b6e1d..c9aedfb 100644
--- a/drivers/irqchip/irq-mbigen.c
+++ b/drivers/irqchip/irq-mbigen.c
@@ -327,7 +327,6 @@ static inline int mbigen_acpi_create_domain(struct platform_device *pdev,
 static int mbigen_device_probe(struct platform_device *pdev)
 {
 	struct mbigen_device *mgn_chip;
-	struct resource *res;
 	int err;
 
 	mgn_chip = devm_kzalloc(&pdev->dev, sizeof(*mgn_chip), GFP_KERNEL);
@@ -335,13 +334,7 @@ static int mbigen_device_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mgn_chip->pdev = pdev;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -EINVAL;
-
-	mgn_chip->base = devm_ioremap(&pdev->dev, res->start,
-				      resource_size(res));
+	mgn_chip->base = devm_platform_ioremap_resource(pdev, 0);
 	if (!mgn_chip->base) {
 		dev_err(&pdev->dev, "failed to ioremap %pR\n", res);
 		return -ENOMEM;
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH 4/7] irqchip/irq-mbigen.c: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-ls-scfg-msi.c | 4 +---
 drivers/irqchip/irq-mbigen.c      | 9 +--------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c
index c671b32..aec5a2f 100644
--- a/drivers/irqchip/irq-ls-scfg-msi.c
+++ b/drivers/irqchip/irq-ls-scfg-msi.c
@@ -336,7 +336,6 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
 {
 	const struct of_device_id *match;
 	struct ls_scfg_msi *msi_data;
-	struct resource *res;
 	int i, ret;
 
 	match = of_match_device(ls_scfg_msi_id, &pdev->dev);
@@ -349,8 +348,7 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
 
 	msi_data->cfg = (struct ls_scfg_msi_cfg *) match->data;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	msi_data->regs = devm_ioremap_resource(&pdev->dev, res);
+	msi_data->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(msi_data->regs)) {
 		dev_err(&pdev->dev, "failed to initialize 'regs'\n");
 		return PTR_ERR(msi_data->regs);
diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c
index 98b6e1d..c9aedfb 100644
--- a/drivers/irqchip/irq-mbigen.c
+++ b/drivers/irqchip/irq-mbigen.c
@@ -327,7 +327,6 @@ static inline int mbigen_acpi_create_domain(struct platform_device *pdev,
 static int mbigen_device_probe(struct platform_device *pdev)
 {
 	struct mbigen_device *mgn_chip;
-	struct resource *res;
 	int err;
 
 	mgn_chip = devm_kzalloc(&pdev->dev, sizeof(*mgn_chip), GFP_KERNEL);
@@ -335,13 +334,7 @@ static int mbigen_device_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mgn_chip->pdev = pdev;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -EINVAL;
-
-	mgn_chip->base = devm_ioremap(&pdev->dev, res->start,
-				      resource_size(res));
+	mgn_chip->base = devm_platform_ioremap_resource(pdev, 0);
 	if (!mgn_chip->base) {
 		dev_err(&pdev->dev, "failed to ioremap %pR\n", res);
 		return -ENOMEM;
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH 5/7] irqchip/irq-mvebu-icu: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-mvebu-icu.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c
index 547045d..a54e4cd 100644
--- a/drivers/irqchip/irq-mvebu-icu.c
+++ b/drivers/irqchip/irq-mvebu-icu.c
@@ -347,7 +347,6 @@ static int mvebu_icu_subset_probe(struct platform_device *pdev)
 static int mvebu_icu_probe(struct platform_device *pdev)
 {
 	struct mvebu_icu *icu;
-	struct resource *res;
 	int i;
 
 	icu = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_icu),
@@ -357,8 +356,7 @@ static int mvebu_icu_probe(struct platform_device *pdev)
 
 	icu->dev = &pdev->dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	icu->base = devm_ioremap_resource(&pdev->dev, res);
+	icu->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(icu->base)) {
 		dev_err(&pdev->dev, "Failed to map icu base address.\n");
 		return PTR_ERR(icu->base);
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH 5/7] irqchip/irq-mvebu-icu: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-mvebu-icu.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c
index 547045d..a54e4cd 100644
--- a/drivers/irqchip/irq-mvebu-icu.c
+++ b/drivers/irqchip/irq-mvebu-icu.c
@@ -347,7 +347,6 @@ static int mvebu_icu_subset_probe(struct platform_device *pdev)
 static int mvebu_icu_probe(struct platform_device *pdev)
 {
 	struct mvebu_icu *icu;
-	struct resource *res;
 	int i;
 
 	icu = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_icu),
@@ -357,8 +356,7 @@ static int mvebu_icu_probe(struct platform_device *pdev)
 
 	icu->dev = &pdev->dev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	icu->base = devm_ioremap_resource(&pdev->dev, res);
+	icu->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(icu->base)) {
 		dev_err(&pdev->dev, "Failed to map icu base address.\n");
 		return PTR_ERR(icu->base);
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH 6/7] irqchip/irq-mvebu-pic: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-mvebu-pic.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-mvebu-pic.c b/drivers/irqchip/irq-mvebu-pic.c
index eec6395..d6ade62 100644
--- a/drivers/irqchip/irq-mvebu-pic.c
+++ b/drivers/irqchip/irq-mvebu-pic.c
@@ -124,14 +124,12 @@ static int mvebu_pic_probe(struct platform_device *pdev)
 	struct device_node *node = pdev->dev.of_node;
 	struct mvebu_pic *pic;
 	struct irq_chip *irq_chip;
-	struct resource *res;
 
 	pic = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_pic), GFP_KERNEL);
 	if (!pic)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pic->base = devm_ioremap_resource(&pdev->dev, res);
+	pic->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(pic->base))
 		return PTR_ERR(pic->base);
 
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH 6/7] irqchip/irq-mvebu-pic: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-mvebu-pic.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-mvebu-pic.c b/drivers/irqchip/irq-mvebu-pic.c
index eec6395..d6ade62 100644
--- a/drivers/irqchip/irq-mvebu-pic.c
+++ b/drivers/irqchip/irq-mvebu-pic.c
@@ -124,14 +124,12 @@ static int mvebu_pic_probe(struct platform_device *pdev)
 	struct device_node *node = pdev->dev.of_node;
 	struct mvebu_pic *pic;
 	struct irq_chip *irq_chip;
-	struct resource *res;
 
 	pic = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_pic), GFP_KERNEL);
 	if (!pic)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pic->base = devm_ioremap_resource(&pdev->dev, res);
+	pic->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(pic->base))
 		return PTR_ERR(pic->base);
 
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH 7/7] irqchip/irq-mvebu-sei: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-mvebu-sei.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c
index 18832cc..0a09dcc 100644
--- a/drivers/irqchip/irq-mvebu-sei.c
+++ b/drivers/irqchip/irq-mvebu-sei.c
@@ -382,8 +382,7 @@ static int mvebu_sei_probe(struct platform_device *pdev)
 	mutex_init(&sei->cp_msi_lock);
 	raw_spin_lock_init(&sei->mask_lock);
 
-	sei->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	sei->base = devm_ioremap_resource(sei->dev, sei->res);
+	sei->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(sei->base)) {
 		dev_err(sei->dev, "Failed to remap SEI resource\n");
 		return PTR_ERR(sei->base);
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH 7/7] irqchip/irq-mvebu-sei: Use devm_platform_ioremap_resource()

[Mukesh Ojha]

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
---
 drivers/irqchip/irq-mvebu-sei.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c
index 18832cc..0a09dcc 100644
--- a/drivers/irqchip/irq-mvebu-sei.c
+++ b/drivers/irqchip/irq-mvebu-sei.c
@@ -382,8 +382,7 @@ static int mvebu_sei_probe(struct platform_device *pdev)
 	mutex_init(&sei->cp_msi_lock);
 	raw_spin_lock_init(&sei->mask_lock);
 
-	sei->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	sei->base = devm_ioremap_resource(sei->dev, sei->res);
+	sei->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(sei->base)) {
 		dev_err(sei->dev, "Failed to remap SEI resource\n");
 		return PTR_ERR(sei->base);
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Re: [PATCH 2/7] irqchip/irq-imgpdc.c: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 04/04/2019 08:20, Mukesh Ojha wrote:
> devm_platform_ioremap_resource() internally have platform_get_resource()
> and devm_ioremap_resource() in it. So instead of calling them separately
> use devm_platform_ioremap_resource() directly.
> 
> Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
> ---
>  drivers/irqchip/irq-imgpdc.c | 10 +---------
>  1 file changed, 1 insertion(+), 9 deletions(-)
> 
> diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
> index d00489a..8904a5f 100644
> --- a/drivers/irqchip/irq-imgpdc.c
> +++ b/drivers/irqchip/irq-imgpdc.c
> @@ -307,13 +307,6 @@ static int pdc_intc_probe(struct platform_device *pdev)
>  	if (!node)
>  		return -ENOENT;
>  
> -	/* Get registers */
> -	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (res_regs == NULL) {
> -		dev_err(&pdev->dev, "cannot find registers resource\n");
> -		return -ENOENT;
> -	}
> -
>  	/* Allocate driver data */
>  	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
>  	if (!priv) {
> @@ -324,8 +317,7 @@ static int pdc_intc_probe(struct platform_device *pdev)
>  	platform_set_drvdata(pdev, priv);
>  
>  	/* Ioremap the registers */
> -	priv->pdc_base = devm_ioremap(&pdev->dev, res_regs->start,
> -				      resource_size(res_regs));
> +	priv->pdc_base = devm_platform_ioremap_resource(pdev, 0);
>  	if (!priv->pdc_base)
>  		return -EIO;
>  
> 

What happens to the res_regs variable then?

Also, and more importantly, devm_platform_ioremap_resource doesn't
return NULL on error, but an ERR_PTR. Yes, the bug was already there,
but since you're changing it, you might as well fix the thing.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

Re: [PATCH 2/7] irqchip/irq-imgpdc.c: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 04/04/2019 08:20, Mukesh Ojha wrote:
> devm_platform_ioremap_resource() internally have platform_get_resource()
> and devm_ioremap_resource() in it. So instead of calling them separately
> use devm_platform_ioremap_resource() directly.
> 
> Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
> ---
>  drivers/irqchip/irq-imgpdc.c | 10 +---------
>  1 file changed, 1 insertion(+), 9 deletions(-)
> 
> diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
> index d00489a..8904a5f 100644
> --- a/drivers/irqchip/irq-imgpdc.c
> +++ b/drivers/irqchip/irq-imgpdc.c
> @@ -307,13 +307,6 @@ static int pdc_intc_probe(struct platform_device *pdev)
>  	if (!node)
>  		return -ENOENT;
>  
> -	/* Get registers */
> -	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (res_regs == NULL) {
> -		dev_err(&pdev->dev, "cannot find registers resource\n");
> -		return -ENOENT;
> -	}
> -
>  	/* Allocate driver data */
>  	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
>  	if (!priv) {
> @@ -324,8 +317,7 @@ static int pdc_intc_probe(struct platform_device *pdev)
>  	platform_set_drvdata(pdev, priv);
>  
>  	/* Ioremap the registers */
> -	priv->pdc_base = devm_ioremap(&pdev->dev, res_regs->start,
> -				      resource_size(res_regs));
> +	priv->pdc_base = devm_platform_ioremap_resource(pdev, 0);
>  	if (!priv->pdc_base)
>  		return -EIO;
>  
> 

What happens to the res_regs variable then?

Also, and more importantly, devm_platform_ioremap_resource doesn't
return NULL on error, but an ERR_PTR. Yes, the bug was already there,
but since you're changing it, you might as well fix the thing.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Re: [PATCH 4/7] irqchip/irq-mbigen.c: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 04/04/2019 08:20, Mukesh Ojha wrote:
> devm_platform_ioremap_resource() internally have platform_get_resource()
> and devm_ioremap_resource() in it. So instead of calling them separately
> use devm_platform_ioremap_resource() directly.
> 
> Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
> ---
>  drivers/irqchip/irq-ls-scfg-msi.c | 4 +---
>  drivers/irqchip/irq-mbigen.c      | 9 +--------
>  2 files changed, 2 insertions(+), 11 deletions(-)

You're changing two drivers, and yet only mention one. Bad.

> 
> diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c
> index c671b32..aec5a2f 100644
> --- a/drivers/irqchip/irq-ls-scfg-msi.c
> +++ b/drivers/irqchip/irq-ls-scfg-msi.c
> @@ -336,7 +336,6 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
>  {
>  	const struct of_device_id *match;
>  	struct ls_scfg_msi *msi_data;
> -	struct resource *res;
>  	int i, ret;
>  
>  	match = of_match_device(ls_scfg_msi_id, &pdev->dev);
> @@ -349,8 +348,7 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
>  
>  	msi_data->cfg = (struct ls_scfg_msi_cfg *) match->data;
>  
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	msi_data->regs = devm_ioremap_resource(&pdev->dev, res);
> +	msi_data->regs = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(msi_data->regs)) {
>  		dev_err(&pdev->dev, "failed to initialize 'regs'\n");
>  		return PTR_ERR(msi_data->regs);
> diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c
> index 98b6e1d..c9aedfb 100644
> --- a/drivers/irqchip/irq-mbigen.c
> +++ b/drivers/irqchip/irq-mbigen.c
> @@ -327,7 +327,6 @@ static inline int mbigen_acpi_create_domain(struct platform_device *pdev,
>  static int mbigen_device_probe(struct platform_device *pdev)
>  {
>  	struct mbigen_device *mgn_chip;
> -	struct resource *res;
>  	int err;
>  
>  	mgn_chip = devm_kzalloc(&pdev->dev, sizeof(*mgn_chip), GFP_KERNEL);
> @@ -335,13 +334,7 @@ static int mbigen_device_probe(struct platform_device *pdev)
>  		return -ENOMEM;
>  
>  	mgn_chip->pdev = pdev;
> -
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (!res)
> -		return -EINVAL;
> -
> -	mgn_chip->base = devm_ioremap(&pdev->dev, res->start,
> -				      resource_size(res));
> +	mgn_chip->base = devm_platform_ioremap_resource(pdev, 0);
>  	if (!mgn_chip->base) {

Now you are introducing a bug, as devm_ioremap and
devm_platform_ioremap_resource do not return the same thing.

>  		dev_err(&pdev->dev, "failed to ioremap %pR\n", res);
>  		return -ENOMEM;
> 

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

Re: [PATCH 4/7] irqchip/irq-mbigen.c: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 04/04/2019 08:20, Mukesh Ojha wrote:
> devm_platform_ioremap_resource() internally have platform_get_resource()
> and devm_ioremap_resource() in it. So instead of calling them separately
> use devm_platform_ioremap_resource() directly.
> 
> Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
> ---
>  drivers/irqchip/irq-ls-scfg-msi.c | 4 +---
>  drivers/irqchip/irq-mbigen.c      | 9 +--------
>  2 files changed, 2 insertions(+), 11 deletions(-)

You're changing two drivers, and yet only mention one. Bad.

> 
> diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c
> index c671b32..aec5a2f 100644
> --- a/drivers/irqchip/irq-ls-scfg-msi.c
> +++ b/drivers/irqchip/irq-ls-scfg-msi.c
> @@ -336,7 +336,6 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
>  {
>  	const struct of_device_id *match;
>  	struct ls_scfg_msi *msi_data;
> -	struct resource *res;
>  	int i, ret;
>  
>  	match = of_match_device(ls_scfg_msi_id, &pdev->dev);
> @@ -349,8 +348,7 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
>  
>  	msi_data->cfg = (struct ls_scfg_msi_cfg *) match->data;
>  
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	msi_data->regs = devm_ioremap_resource(&pdev->dev, res);
> +	msi_data->regs = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(msi_data->regs)) {
>  		dev_err(&pdev->dev, "failed to initialize 'regs'\n");
>  		return PTR_ERR(msi_data->regs);
> diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c
> index 98b6e1d..c9aedfb 100644
> --- a/drivers/irqchip/irq-mbigen.c
> +++ b/drivers/irqchip/irq-mbigen.c
> @@ -327,7 +327,6 @@ static inline int mbigen_acpi_create_domain(struct platform_device *pdev,
>  static int mbigen_device_probe(struct platform_device *pdev)
>  {
>  	struct mbigen_device *mgn_chip;
> -	struct resource *res;
>  	int err;
>  
>  	mgn_chip = devm_kzalloc(&pdev->dev, sizeof(*mgn_chip), GFP_KERNEL);
> @@ -335,13 +334,7 @@ static int mbigen_device_probe(struct platform_device *pdev)
>  		return -ENOMEM;
>  
>  	mgn_chip->pdev = pdev;
> -
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (!res)
> -		return -EINVAL;
> -
> -	mgn_chip->base = devm_ioremap(&pdev->dev, res->start,
> -				      resource_size(res));
> +	mgn_chip->base = devm_platform_ioremap_resource(pdev, 0);
>  	if (!mgn_chip->base) {

Now you are introducing a bug, as devm_ioremap and
devm_platform_ioremap_resource do not return the same thing.

>  		dev_err(&pdev->dev, "failed to ioremap %pR\n", res);
>  		return -ENOMEM;
> 

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

_______________________________________________
linux-arm-kernel mailing list
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Re: [PATCH 7/7] irqchip/irq-mvebu-sei: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 04/04/2019 08:20, Mukesh Ojha wrote:
> devm_platform_ioremap_resource() internally have platform_get_resource()
> and devm_ioremap_resource() in it. So instead of calling them separately
> use devm_platform_ioremap_resource() directly.
> 
> Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
> ---
>  drivers/irqchip/irq-mvebu-sei.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c
> index 18832cc..0a09dcc 100644
> --- a/drivers/irqchip/irq-mvebu-sei.c
> +++ b/drivers/irqchip/irq-mvebu-sei.c
> @@ -382,8 +382,7 @@ static int mvebu_sei_probe(struct platform_device *pdev)
>  	mutex_init(&sei->cp_msi_lock);
>  	raw_spin_lock_init(&sei->mask_lock);
>  
> -	sei->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	sei->base = devm_ioremap_resource(sei->dev, sei->res);
> +	sei->base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(sei->base)) {
>  		dev_err(sei->dev, "Failed to remap SEI resource\n");
>  		return PTR_ERR(sei->base);
> 

Again, what about sei->res?

	M.
-- 
Jazz is not dead. It just smells funny...

Re: [PATCH 7/7] irqchip/irq-mvebu-sei: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 04/04/2019 08:20, Mukesh Ojha wrote:
> devm_platform_ioremap_resource() internally have platform_get_resource()
> and devm_ioremap_resource() in it. So instead of calling them separately
> use devm_platform_ioremap_resource() directly.
> 
> Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
> ---
>  drivers/irqchip/irq-mvebu-sei.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c
> index 18832cc..0a09dcc 100644
> --- a/drivers/irqchip/irq-mvebu-sei.c
> +++ b/drivers/irqchip/irq-mvebu-sei.c
> @@ -382,8 +382,7 @@ static int mvebu_sei_probe(struct platform_device *pdev)
>  	mutex_init(&sei->cp_msi_lock);
>  	raw_spin_lock_init(&sei->mask_lock);
>  
> -	sei->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	sei->base = devm_ioremap_resource(sei->dev, sei->res);
> +	sei->base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(sei->base)) {
>  		dev_err(sei->dev, "Failed to remap SEI resource\n");
>  		return PTR_ERR(sei->base);
> 

Again, what about sei->res?

	M.
-- 
Jazz is not dead. It just smells funny...

_______________________________________________
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Re: [PATCH 2/7] irqchip/irq-imgpdc.c: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 29/04/2019 09:13, Marc Zyngier wrote:
> On 04/04/2019 08:20, Mukesh Ojha wrote:
>> devm_platform_ioremap_resource() internally have platform_get_resource()
>> and devm_ioremap_resource() in it. So instead of calling them separately
>> use devm_platform_ioremap_resource() directly.
>>
>> Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
>> ---
>>  drivers/irqchip/irq-imgpdc.c | 10 +---------
>>  1 file changed, 1 insertion(+), 9 deletions(-)
>>
>> diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
>> index d00489a..8904a5f 100644
>> --- a/drivers/irqchip/irq-imgpdc.c
>> +++ b/drivers/irqchip/irq-imgpdc.c
>> @@ -307,13 +307,6 @@ static int pdc_intc_probe(struct platform_device *pdev)
>>  	if (!node)
>>  		return -ENOENT;
>>  
>> -	/* Get registers */
>> -	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> -	if (res_regs == NULL) {
>> -		dev_err(&pdev->dev, "cannot find registers resource\n");
>> -		return -ENOENT;
>> -	}
>> -
>>  	/* Allocate driver data */
>>  	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
>>  	if (!priv) {
>> @@ -324,8 +317,7 @@ static int pdc_intc_probe(struct platform_device *pdev)
>>  	platform_set_drvdata(pdev, priv);
>>  
>>  	/* Ioremap the registers */
>> -	priv->pdc_base = devm_ioremap(&pdev->dev, res_regs->start,
>> -				      resource_size(res_regs));
>> +	priv->pdc_base = devm_platform_ioremap_resource(pdev, 0);
>>  	if (!priv->pdc_base)
>>  		return -EIO;
>>  
>>
> 
> What happens to the res_regs variable then?
> 
> Also, and more importantly, devm_platform_ioremap_resource doesn't
> return NULL on error, but an ERR_PTR. Yes, the bug was already there,
> but since you're changing it, you might as well fix the thing.

Actually, the current code is right, and you're actively breaking it. Boo.

	M.
-- 
Jazz is not dead. It just smells funny...

Re: [PATCH 2/7] irqchip/irq-imgpdc.c: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 29/04/2019 09:13, Marc Zyngier wrote:
> On 04/04/2019 08:20, Mukesh Ojha wrote:
>> devm_platform_ioremap_resource() internally have platform_get_resource()
>> and devm_ioremap_resource() in it. So instead of calling them separately
>> use devm_platform_ioremap_resource() directly.
>>
>> Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
>> ---
>>  drivers/irqchip/irq-imgpdc.c | 10 +---------
>>  1 file changed, 1 insertion(+), 9 deletions(-)
>>
>> diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
>> index d00489a..8904a5f 100644
>> --- a/drivers/irqchip/irq-imgpdc.c
>> +++ b/drivers/irqchip/irq-imgpdc.c
>> @@ -307,13 +307,6 @@ static int pdc_intc_probe(struct platform_device *pdev)
>>  	if (!node)
>>  		return -ENOENT;
>>  
>> -	/* Get registers */
>> -	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> -	if (res_regs == NULL) {
>> -		dev_err(&pdev->dev, "cannot find registers resource\n");
>> -		return -ENOENT;
>> -	}
>> -
>>  	/* Allocate driver data */
>>  	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
>>  	if (!priv) {
>> @@ -324,8 +317,7 @@ static int pdc_intc_probe(struct platform_device *pdev)
>>  	platform_set_drvdata(pdev, priv);
>>  
>>  	/* Ioremap the registers */
>> -	priv->pdc_base = devm_ioremap(&pdev->dev, res_regs->start,
>> -				      resource_size(res_regs));
>> +	priv->pdc_base = devm_platform_ioremap_resource(pdev, 0);
>>  	if (!priv->pdc_base)
>>  		return -EIO;
>>  
>>
> 
> What happens to the res_regs variable then?
> 
> Also, and more importantly, devm_platform_ioremap_resource doesn't
> return NULL on error, but an ERR_PTR. Yes, the bug was already there,
> but since you're changing it, you might as well fix the thing.

Actually, the current code is right, and you're actively breaking it. Boo.

	M.
-- 
Jazz is not dead. It just smells funny...

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Re: [PATCH 0/7] irqchip: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 04/04/2019 08:20, Mukesh Ojha wrote:
> Hi All,
> 
> This is just a minor change to promote using of this api
> devm_platform_ioremap_resource() and nothing else functional
> change it does.
> 
> Also, there are patches where only ioremap is used without requesting
> the mem region so this devm_platform_ioremap_resource() take cares all
> of that in single call.

This series has a number of problems:

- It seems to introduce bugs rather than fixing anything
- It doesn't do a complete job of cleaning up the drivers
- Patch 4 does more than it is advertises doing
- You haven't cc'd the authors of these drivers, which would be common
courtesy

For a series that is a "minor change", that's a bit much. Please do not
send such blanket changes without understanding what you are doing.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

Re: [PATCH 0/7] irqchip: Use devm_platform_ioremap_resource()

[Marc Zyngier]

On 04/04/2019 08:20, Mukesh Ojha wrote:
> Hi All,
> 
> This is just a minor change to promote using of this api
> devm_platform_ioremap_resource() and nothing else functional
> change it does.
> 
> Also, there are patches where only ioremap is used without requesting
> the mem region so this devm_platform_ioremap_resource() take cares all
> of that in single call.

This series has a number of problems:

- It seems to introduce bugs rather than fixing anything
- It doesn't do a complete job of cleaning up the drivers
- Patch 4 does more than it is advertises doing
- You haven't cc'd the authors of these drivers, which would be common
courtesy

For a series that is a "minor change", that's a bit much. Please do not
send such blanket changes without understanding what you are doing.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel