Signed-off-by: Axel Lin <[email protected]>
---
drivers/pwm/pwm-imx.c | 57 +++++++++----------------------------------------
1 file changed, 10 insertions(+), 47 deletions(-)
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 900d145..2a0b353 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -159,18 +159,16 @@ static int __devinit imx_pwm_probe(struct platform_device *pdev)
struct resource *r;
int ret = 0;
- imx = kzalloc(sizeof(*imx), GFP_KERNEL);
+ imx = devm_kzalloc(&pdev->dev, sizeof(*imx), GFP_KERNEL);
if (imx == NULL) {
dev_err(&pdev->dev, "failed to allocate memory\n");
return -ENOMEM;
}
- imx->clk = clk_get(&pdev->dev, "pwm");
+ imx->clk = devm_clk_get(&pdev->dev, "pwm");
- if (IS_ERR(imx->clk)) {
- ret = PTR_ERR(imx->clk);
- goto err_free;
- }
+ if (IS_ERR(imx->clk))
+ return PTR_ERR(imx->clk);
imx->chip.ops = &imx_pwm_ops;
imx->chip.dev = &pdev->dev;
@@ -182,65 +180,30 @@ static int __devinit imx_pwm_probe(struct platform_device *pdev)
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (r == NULL) {
dev_err(&pdev->dev, "no memory resource defined\n");
- ret = -ENODEV;
- goto err_free_clk;
- }
-
- r = request_mem_region(r->start, resource_size(r), pdev->name);
- if (r == NULL) {
- dev_err(&pdev->dev, "failed to request memory resource\n");
- ret = -EBUSY;
- goto err_free_clk;
+ return -ENODEV;
}
- imx->mmio_base = ioremap(r->start, resource_size(r));
- if (imx->mmio_base == NULL) {
- dev_err(&pdev->dev, "failed to ioremap() registers\n");
- ret = -ENODEV;
- goto err_free_mem;
- }
+ imx->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+ if (imx->mmio_base == NULL)
+ return -EADDRNOTAVAIL;
ret = pwmchip_add(&imx->chip);
if (ret < 0)
- goto err_iounmap;
+ return ret;
platform_set_drvdata(pdev, imx);
return 0;
-
-err_iounmap:
- iounmap(imx->mmio_base);
-err_free_mem:
- release_mem_region(r->start, resource_size(r));
-err_free_clk:
- clk_put(imx->clk);
-err_free:
- kfree(imx);
- return ret;
}
static int __devexit imx_pwm_remove(struct platform_device *pdev)
{
struct imx_chip *imx;
- struct resource *r;
- int ret;
imx = platform_get_drvdata(pdev);
if (imx == NULL)
return -ENODEV;
- ret = pwmchip_remove(&imx->chip);
- if (ret)
- return ret;
-
- iounmap(imx->mmio_base);
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(r->start, resource_size(r));
-
- clk_put(imx->clk);
-
- kfree(imx);
- return 0;
+ return pwmchip_remove(&imx->chip);
}
static struct platform_driver imx_pwm_driver = {
--
1.7.9.5
Signed-off-by: Axel Lin <[email protected]>
---
drivers/pwm/pwm-pxa.c | 52 +++++++++++--------------------------------------
1 file changed, 11 insertions(+), 41 deletions(-)
diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c
index d5c6ce5..bd5867a 100644
--- a/drivers/pwm/pwm-pxa.c
+++ b/drivers/pwm/pwm-pxa.c
@@ -1,5 +1,5 @@
/*
- * linux/arch/arm/mach-pxa/pwm.c
+ * drivers/pwm/pwm-pxa.c
*
* simple driver for PWM (Pulse Width Modulator) controller
*
@@ -145,17 +145,16 @@ static int __devinit pwm_probe(struct platform_device *pdev)
struct resource *r;
int ret = 0;
- pwm = kzalloc(sizeof(*pwm), GFP_KERNEL);
+ pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL);
if (pwm == NULL) {
dev_err(&pdev->dev, "failed to allocate memory\n");
return -ENOMEM;
}
- pwm->clk = clk_get(&pdev->dev, NULL);
- if (IS_ERR(pwm->clk)) {
- ret = PTR_ERR(pwm->clk);
- goto err_free;
- }
+ pwm->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(pwm->clk))
+ return PTR_ERR(pwm->clk);
+
pwm->clk_enabled = 0;
pwm->chip.dev = &pdev->dev;
@@ -166,23 +165,12 @@ static int __devinit pwm_probe(struct platform_device *pdev)
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (r == NULL) {
dev_err(&pdev->dev, "no memory resource defined\n");
- ret = -ENODEV;
- goto err_free_clk;
- }
-
- r = request_mem_region(r->start, resource_size(r), pdev->name);
- if (r == NULL) {
- dev_err(&pdev->dev, "failed to request memory resource\n");
- ret = -EBUSY;
- goto err_free_clk;
+ return -ENODEV;
}
- pwm->mmio_base = ioremap(r->start, resource_size(r));
- if (pwm->mmio_base == NULL) {
- dev_err(&pdev->dev, "failed to ioremap() registers\n");
- ret = -ENODEV;
- goto err_free_mem;
- }
+ pwm->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
+ if (pwm->mmio_base == NULL)
+ return -EADDRNOTAVAIL;
ret = pwmchip_add(&pwm->chip);
if (ret < 0) {
@@ -192,35 +180,17 @@ static int __devinit pwm_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, pwm);
return 0;
-
-err_free_mem:
- release_mem_region(r->start, resource_size(r));
-err_free_clk:
- clk_put(pwm->clk);
-err_free:
- kfree(pwm);
- return ret;
}
static int __devexit pwm_remove(struct platform_device *pdev)
{
struct pxa_pwm_chip *chip;
- struct resource *r;
chip = platform_get_drvdata(pdev);
if (chip == NULL)
return -ENODEV;
- pwmchip_remove(&chip->chip);
-
- iounmap(chip->mmio_base);
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(r->start, resource_size(r));
-
- clk_put(chip->clk);
- kfree(chip);
- return 0;
+ return pwmchip_remove(&chip->chip);
}
static struct platform_driver pwm_driver = {
--
1.7.9.5
Signed-off-by: Axel Lin <[email protected]>
---
drivers/pwm/pwm-vt8500.c | 47 ++++++++--------------------------------------
1 file changed, 8 insertions(+), 39 deletions(-)
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index 3db0746..5480214 100644
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -1,5 +1,5 @@
/*
- * arch/arm/mach-vt8500/pwm.c
+ * drivers/pwm/pwm-vt8500.c
*
* Copyright (C) 2010 Alexey Charkov <[email protected]>
*
@@ -113,7 +113,7 @@ static int __devinit pwm_probe(struct platform_device *pdev)
struct resource *r;
int ret;
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
if (chip == NULL) {
dev_err(&pdev->dev, "failed to allocate memory\n");
return -ENOMEM;
@@ -127,61 +127,30 @@ static int __devinit pwm_probe(struct platform_device *pdev)
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (r == NULL) {
dev_err(&pdev->dev, "no memory resource defined\n");
- ret = -ENODEV;
- goto err_free;
+ return -ENODEV;
}
- r = request_mem_region(r->start, resource_size(r), pdev->name);
- if (r == NULL) {
- dev_err(&pdev->dev, "failed to request memory resource\n");
- ret = -EBUSY;
- goto err_free;
- }
-
- chip->base = ioremap(r->start, resource_size(r));
- if (chip->base == NULL) {
- dev_err(&pdev->dev, "failed to ioremap() registers\n");
- ret = -ENODEV;
- goto err_free_mem;
- }
+ chip->base = devm_request_and_ioremap(&pdev->dev, r);
+ if (chip->base == NULL)
+ return -EADDRNOTAVAIL;
ret = pwmchip_add(&chip->chip);
if (ret < 0)
- goto err_unmap;
+ return ret;
platform_set_drvdata(pdev, chip);
return ret;
-
-err_unmap:
- iounmap(chip->base);
-err_free_mem:
- release_mem_region(r->start, resource_size(r));
-err_free:
- kfree(chip);
- return ret;
}
static int __devexit pwm_remove(struct platform_device *pdev)
{
struct vt8500_chip *chip;
- struct resource *r;
- int err;
chip = platform_get_drvdata(pdev);
if (chip == NULL)
return -ENODEV;
- err = pwmchip_remove(&chip->chip);
- if (err < 0)
- return err;
-
- iounmap(chip->base);
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(r->start, resource_size(r));
-
- kfree(chip);
- return 0;
+ return pwmchip_remove(&chip->chip);
}
static struct platform_driver pwm_driver = {
--
1.7.9.5