diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2012-06-26 16:58:10 +0800 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@avionic-design.de> | 2012-07-23 13:23:55 +0200 |
| commit | 22d260bd88452ae81c80514810434d4cc98b7978 (patch) | |
| tree | 140608da1bb4111bfa84a88e12961b49d38e99db /drivers/pwm/pwm-mxs.c | |
| parent | 01bf32e94968fd13804062859cfd935efebc11e9 (diff) | |
| download | linux-22d260bd88452ae81c80514810434d4cc98b7978.tar.bz2 | |
pwm: pwm-mxs: use devm_* managed functions
Use devm_* managed functions to have a clean fail-out.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Diffstat (limited to 'drivers/pwm/pwm-mxs.c')
| -rw-r--r-- | drivers/pwm/pwm-mxs.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c index 23e524bbee03..3b7f3ab116e3 100644 --- a/drivers/pwm/pwm-mxs.c +++ b/drivers/pwm/pwm-mxs.c @@ -129,21 +129,21 @@ static int mxs_pwm_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct mxs_pwm_chip *mxs; + struct resource *res; int ret; mxs = devm_kzalloc(&pdev->dev, sizeof(*mxs), GFP_KERNEL); if (!mxs) return -ENOMEM; - mxs->base = of_iomap(np, 0); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + mxs->base = devm_request_and_ioremap(&pdev->dev, res); if (!mxs->base) return -EADDRNOTAVAIL; - mxs->clk = clk_get(&pdev->dev, NULL); - if (IS_ERR(mxs->clk)) { - ret = PTR_ERR(mxs->clk); - goto iounmap; - } + mxs->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(mxs->clk)) + return PTR_ERR(mxs->clk); mxs->chip.dev = &pdev->dev; mxs->chip.ops = &mxs_pwm_ops; @@ -151,13 +151,13 @@ static int mxs_pwm_probe(struct platform_device *pdev) ret = of_property_read_u32(np, "fsl,pwm-number", &mxs->chip.npwm); if (ret < 0) { dev_err(&pdev->dev, "failed to get pwm number: %d\n", ret); - goto clk_put; + return ret; } ret = pwmchip_add(&mxs->chip); if (ret < 0) { dev_err(&pdev->dev, "failed to add pwm chip %d\n", ret); - goto clk_put; + return ret; } mxs->dev = &pdev->dev; @@ -166,12 +166,6 @@ static int mxs_pwm_probe(struct platform_device *pdev) stmp_reset_block(mxs->base); return 0; - -clk_put: - clk_put(mxs->clk); -iounmap: - iounmap(mxs->base); - return ret; } static int __devexit mxs_pwm_remove(struct platform_device *pdev) @@ -179,8 +173,6 @@ static int __devexit mxs_pwm_remove(struct platform_device *pdev) struct mxs_pwm_chip *mxs = platform_get_drvdata(pdev); pwmchip_remove(&mxs->chip); - clk_put(mxs->clk); - iounmap(mxs->base); return 0; } |