2013-05-10 08:17:04

by Wolfram Sang

[permalink] [raw]
Subject: [RFC 18/42] drivers/pinctrl: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <[email protected]>
---
drivers/pinctrl/pinctrl-at91.c | 7 +------
drivers/pinctrl/pinctrl-coh901.c | 5 -----
drivers/pinctrl/pinctrl-exynos5440.c | 5 -----
drivers/pinctrl/pinctrl-samsung.c | 5 -----
drivers/pinctrl/pinctrl-xway.c | 4 ----
5 files changed, 1 insertion(+), 25 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 5d7529e..b90a3a0 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1543,12 +1543,6 @@ static int at91_gpio_probe(struct platform_device *pdev)
goto err;
}

- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- ret = -ENOENT;
- goto err;
- }
-
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ret = irq;
@@ -1561,6 +1555,7 @@ static int at91_gpio_probe(struct platform_device *pdev)
goto err;
}

+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
at91_chip->regbase = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(at91_chip->regbase)) {
ret = PTR_ERR(at91_chip->regbase);
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index edde3ac..a67af41 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -713,11 +713,6 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
gpio->dev = &pdev->dev;

memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!memres) {
- dev_err(gpio->dev, "could not get GPIO memory resource\n");
- return -ENODEV;
- }
-
gpio->base = devm_ioremap_resource(&pdev->dev, memres);
if (IS_ERR(gpio->base))
return PTR_ERR(gpio->base);
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
index 6038503..32a48f4 100644
--- a/drivers/pinctrl/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -1000,11 +1000,6 @@ static int exynos5440_pinctrl_probe(struct platform_device *pdev)
}

res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "cannot find IO resource\n");
- return -ENOENT;
- }
-
priv->reg_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(priv->reg_base))
return PTR_ERR(priv->reg_base);
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index 9763668..055d016 100644
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -932,11 +932,6 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
drvdata->dev = dev;

res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "cannot find IO resource\n");
- return -ENOENT;
- }
-
drvdata->virt_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(drvdata->virt_base))
return PTR_ERR(drvdata->virt_base);
diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
index f2977cf..e92132c 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -716,10 +716,6 @@ static int pinmux_xway_probe(struct platform_device *pdev)

/* get and remap our register range */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "Failed to get resource\n");
- return -ENOENT;
- }
xway_info.membase[0] = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(xway_info.membase[0]))
return PTR_ERR(xway_info.membase[0]);
--
1.7.10.4


Subject: Re: [RFC 18/42] drivers/pinctrl: don't check resource with devm_ioremap_resource

On 10:17 Fri 10 May , Wolfram Sang wrote:
> devm_ioremap_resource does sanity checks on the given resource. No need to
> duplicate this in the driver.
>
> Signed-off-by: Wolfram Sang <[email protected]>
> ---
> drivers/pinctrl/pinctrl-at91.c | 7 +------
for at91
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]>

> drivers/pinctrl/pinctrl-coh901.c | 5 -----
> drivers/pinctrl/pinctrl-exynos5440.c | 5 -----
> drivers/pinctrl/pinctrl-samsung.c | 5 -----
> drivers/pinctrl/pinctrl-xway.c | 4 ----
> 5 files changed, 1 insertion(+), 25 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
> index 5d7529e..b90a3a0 100644
> --- a/drivers/pinctrl/pinctrl-at91.c
> +++ b/drivers/pinctrl/pinctrl-at91.c
> @@ -1543,12 +1543,6 @@ static int at91_gpio_probe(struct platform_device *pdev)
> goto err;
> }
>
> - res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - ret = -ENOENT;
> - goto err;
> - }
> -
> irq = platform_get_irq(pdev, 0);
> if (irq < 0) {
> ret = irq;
> @@ -1561,6 +1555,7 @@ static int at91_gpio_probe(struct platform_device *pdev)
> goto err;
> }
>
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> at91_chip->regbase = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(at91_chip->regbase)) {
> ret = PTR_ERR(at91_chip->regbase);
> diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
> index edde3ac..a67af41 100644
> --- a/drivers/pinctrl/pinctrl-coh901.c
> +++ b/drivers/pinctrl/pinctrl-coh901.c
> @@ -713,11 +713,6 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
> gpio->dev = &pdev->dev;
>
> memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!memres) {
> - dev_err(gpio->dev, "could not get GPIO memory resource\n");
> - return -ENODEV;
> - }
> -
> gpio->base = devm_ioremap_resource(&pdev->dev, memres);
> if (IS_ERR(gpio->base))
> return PTR_ERR(gpio->base);
> diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
> index 6038503..32a48f4 100644
> --- a/drivers/pinctrl/pinctrl-exynos5440.c
> +++ b/drivers/pinctrl/pinctrl-exynos5440.c
> @@ -1000,11 +1000,6 @@ static int exynos5440_pinctrl_probe(struct platform_device *pdev)
> }
>
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - dev_err(dev, "cannot find IO resource\n");
> - return -ENOENT;
> - }
> -
> priv->reg_base = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(priv->reg_base))
> return PTR_ERR(priv->reg_base);
> diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
> index 9763668..055d016 100644
> --- a/drivers/pinctrl/pinctrl-samsung.c
> +++ b/drivers/pinctrl/pinctrl-samsung.c
> @@ -932,11 +932,6 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
> drvdata->dev = dev;
>
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - dev_err(dev, "cannot find IO resource\n");
> - return -ENOENT;
> - }
> -
> drvdata->virt_base = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(drvdata->virt_base))
> return PTR_ERR(drvdata->virt_base);
> diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
> index f2977cf..e92132c 100644
> --- a/drivers/pinctrl/pinctrl-xway.c
> +++ b/drivers/pinctrl/pinctrl-xway.c
> @@ -716,10 +716,6 @@ static int pinmux_xway_probe(struct platform_device *pdev)
>
> /* get and remap our register range */
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - dev_err(&pdev->dev, "Failed to get resource\n");
> - return -ENOENT;
> - }
> xway_info.membase[0] = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(xway_info.membase[0]))
> return PTR_ERR(xway_info.membase[0]);
> --
> 1.7.10.4
>

2013-05-14 12:19:33

by Linus Walleij

[permalink] [raw]
Subject: Re: [RFC 18/42] drivers/pinctrl: don't check resource with devm_ioremap_resource

On Fri, May 10, 2013 at 10:17 AM, Wolfram Sang <[email protected]> wrote:

> devm_ioremap_resource does sanity checks on the given resource. No need to
> duplicate this in the driver.
>
> Signed-off-by: Wolfram Sang <[email protected]>

Patch applied with Jean-Christophe's ACK.

Thanks!
Linus Walleij

Subject: Re: [RFC 18/42] drivers/pinctrl: don't check resource with devm_ioremap_resource

On 10:17 Fri 10 May , Wolfram Sang wrote:
> devm_ioremap_resource does sanity checks on the given resource. No need to
> duplicate this in the driver.
>
> Signed-off-by: Wolfram Sang <[email protected]>
> ---
> drivers/pinctrl/pinctrl-at91.c | 7 +------
for at91

Acked-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]>

Best Regards,
J.
> drivers/pinctrl/pinctrl-coh901.c | 5 -----
> drivers/pinctrl/pinctrl-exynos5440.c | 5 -----
> drivers/pinctrl/pinctrl-samsung.c | 5 -----
> drivers/pinctrl/pinctrl-xway.c | 4 ----
> 5 files changed, 1 insertion(+), 25 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
> index 5d7529e..b90a3a0 100644
> --- a/drivers/pinctrl/pinctrl-at91.c
> +++ b/drivers/pinctrl/pinctrl-at91.c
> @@ -1543,12 +1543,6 @@ static int at91_gpio_probe(struct platform_device *pdev)
> goto err;
> }
>
> - res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - ret = -ENOENT;
> - goto err;
> - }
> -
> irq = platform_get_irq(pdev, 0);
> if (irq < 0) {
> ret = irq;
> @@ -1561,6 +1555,7 @@ static int at91_gpio_probe(struct platform_device *pdev)
> goto err;
> }
>
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> at91_chip->regbase = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(at91_chip->regbase)) {
> ret = PTR_ERR(at91_chip->regbase);
> diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
> index edde3ac..a67af41 100644
> --- a/drivers/pinctrl/pinctrl-coh901.c
> +++ b/drivers/pinctrl/pinctrl-coh901.c
> @@ -713,11 +713,6 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
> gpio->dev = &pdev->dev;
>
> memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!memres) {
> - dev_err(gpio->dev, "could not get GPIO memory resource\n");
> - return -ENODEV;
> - }
> -
> gpio->base = devm_ioremap_resource(&pdev->dev, memres);
> if (IS_ERR(gpio->base))
> return PTR_ERR(gpio->base);
> diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
> index 6038503..32a48f4 100644
> --- a/drivers/pinctrl/pinctrl-exynos5440.c
> +++ b/drivers/pinctrl/pinctrl-exynos5440.c
> @@ -1000,11 +1000,6 @@ static int exynos5440_pinctrl_probe(struct platform_device *pdev)
> }
>
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - dev_err(dev, "cannot find IO resource\n");
> - return -ENOENT;
> - }
> -
> priv->reg_base = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(priv->reg_base))
> return PTR_ERR(priv->reg_base);
> diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
> index 9763668..055d016 100644
> --- a/drivers/pinctrl/pinctrl-samsung.c
> +++ b/drivers/pinctrl/pinctrl-samsung.c
> @@ -932,11 +932,6 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
> drvdata->dev = dev;
>
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - dev_err(dev, "cannot find IO resource\n");
> - return -ENOENT;
> - }
> -
> drvdata->virt_base = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(drvdata->virt_base))
> return PTR_ERR(drvdata->virt_base);
> diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
> index f2977cf..e92132c 100644
> --- a/drivers/pinctrl/pinctrl-xway.c
> +++ b/drivers/pinctrl/pinctrl-xway.c
> @@ -716,10 +716,6 @@ static int pinmux_xway_probe(struct platform_device *pdev)
>
> /* get and remap our register range */
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - if (!res) {
> - dev_err(&pdev->dev, "Failed to get resource\n");
> - return -ENOENT;
> - }
> xway_info.membase[0] = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(xway_info.membase[0]))
> return PTR_ERR(xway_info.membase[0]);
> --
> 1.7.10.4
>