RE: [PATCH Resend] drm/exynos: Use devm_clk_get in exynos_drm_fimd.c

The subject mentions just only 'use devm_clk_get in exynos_dev_fimd.c' but this patch removes unnecessary clk_disable calls also. Just separate this patch into two as you mentioned. For this, already applied old one. So could you send another one? Sorry for inconvenient. :)

Thanks, Inki Dae

-----Original Message----- From: Sachin Kamat [mailto:sachin.kamat@linaro.org] Sent: Friday, November 23, 2012 5:43 PM To: dri-devel@lists.freedesktop.org Cc: inki.dae@samsung.com; sachin.kamat@linaro.org; patches@linaro.org Subject: [PATCH Resend] drm/exynos: Use devm_clk_get in exynos_drm_fimd.c

devm_clk_get is device managed and makes error handling and exit code simpler.

Signed-off-by: Sachin Kamat sachin.kamat@linaro.org

drivers/gpu/drm/exynos/exynos_drm_fimd.c | 31

++++++--------------------

---

1 files changed, 7 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index ad04edd..00bd266 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -846,18 +846,16 @@ static int __devinit fimd_probe(struct platform_device *pdev) if (!ctx) return -ENOMEM;

• ctx->bus_clk = clk_get(dev, "fimd");

• ctx->bus_clk = devm_clk_get(dev, "fimd"); if (IS_ERR(ctx->bus_clk)) { dev_err(dev, "failed to get bus clock\n");

• ret = PTR_ERR(ctx->bus_clk);
  

• goto err_clk_get;
  

• return PTR_ERR(ctx->bus_clk);
  

  }

• ctx->lcd_clk = clk_get(dev, "sclk_fimd");

• ctx->lcd_clk = devm_clk_get(dev, "sclk_fimd"); if (IS_ERR(ctx->lcd_clk)) { dev_err(dev, "failed to get lcd clock\n");

• ret = PTR_ERR(ctx->lcd_clk);
  

• goto err_bus_clk;
  

• return PTR_ERR(ctx->lcd_clk);
  

  }

  res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

@@ -865,14 +863,13 @@ static int __devinit fimd_probe(struct platform_device *pdev) ctx->regs = devm_request_and_ioremap(&pdev->dev, res); if (!ctx->regs) { dev_err(dev, "failed to map registers\n");

• ret = -ENXIO;
  

• goto err_clk;
  

• return -ENXIO;
  

  }

  res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { dev_err(dev, "irq request failed.\n");

• goto err_clk;
  

• return -ENXIO;
  

  }

  ctx->irq = res->start;

@@ -881,7 +878,7 @@ static int __devinit fimd_probe(struct platform_device *pdev) 0, "drm_fimd", ctx); if (ret) { dev_err(dev, "irq request failed.\n");

• goto err_clk;
  

• return ret;
  

  }

  ctx->vidcon0 = pdata->vidcon0;

@@ -915,17 +912,6 @@ static int __devinit fimd_probe(struct platform_device *pdev) exynos_drm_subdrv_register(subdrv);

return 0;

-err_clk:

• clk_disable(ctx->lcd_clk);
• clk_put(ctx->lcd_clk);

-err_bus_clk:

• clk_disable(ctx->bus_clk);
• clk_put(ctx->bus_clk);

-err_clk_get:

• return ret;

}

static int __devexit fimd_remove(struct platform_device *pdev) @@ -949,9 +935,6 @@ static int __devexit fimd_remove(struct platform_device *pdev) out: pm_runtime_disable(dev);

• clk_put(ctx->lcd_clk);
• clk_put(ctx->bus_clk);
• return 0;

}

-- 1.7.4.1