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mmc: sirf: fix sdhci_pltfm_init sequence

PATCH New Arnd Bergmann 4 participants 4 messages Jun 3, 2013 – Jun 27, 2013

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#0 lore raw

PATCH 1/1 mmc: sirf: fix sdhci_pltfm_init sequence

Patch "mmc: sdhci: Add size for caller in init+register" changed the interface for sdhci_pltfm_init, while patch "mmc: sdhci-sirf: add mmc host sdhci-pltfm based driver for SiRF SoCs" added a new driver with the old interface.

This changes the sirf driver to use the new interface, avoiding one warning, and simplifying the init sequence. Since we're here already, this also adds an error path for failed clk_prepare_enable.

Cc Christian Daudt <[email protected]>
Cc Barry Song <[email protected]>
Cc Chris Ball <[email protected]>

----
This needs an Ack from Barry before it can get applied.

drivers/mmc/host/sdhci-sirf.c +23 -28
index 09805af..cc80f26 100644
@@ -24,7 +24,7 @@ struct sdhci_sirf_priv {
 static unsigned int sdhci_sirf_get_max_clk(struct sdhci_host *host)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = pltfm_host->priv;
+	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
 	return clk_get_rate(priv->clk);
 }
 
@@ -47,6 +47,8 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_sirf_priv *priv;
 	struct pinctrl *pinctrl;
+	struct clk *clk;
+	int gpio_cd;
 	int ret;
 
 	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
@@ -55,38 +57,31 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
 		return PTR_ERR(pinctrl);
 	}
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_sirf_priv),
-		GFP_KERNEL);
-	if (!priv) {
-		dev_err(&pdev->dev, "unable to allocate private data");
-		return -ENOMEM;
-	}
-
-	priv->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(priv->clk)) {
+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "unable to get clock");
-		return PTR_ERR(priv->clk);
+		return PTR_ERR(clk);
 	}
 
-	if (pdev->dev.of_node) {
-		priv->gpio_cd = of_get_named_gpio(pdev->dev.of_node,
-			"cd-gpios", 0);
-	} else {
-		priv->gpio_cd = -EINVAL;
-	}
+	if (pdev->dev.of_node)
+		gpio_cd = of_get_named_gpio(pdev->dev.of_node, "cd-gpios", 0);
+	else
+		gpio_cd = -EINVAL;
 
-	host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata);
-	if (IS_ERR(host)) {
-		ret = PTR_ERR(host);
-		goto err_sdhci_pltfm_init;
-	}
+	host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata, sizeof(struct sdhci_sirf_priv));
+	if (IS_ERR(host))
+		return PTR_ERR(host);
 
 	pltfm_host = sdhci_priv(host);
-	pltfm_host->priv = priv;
+	priv = sdhci_pltfm_priv(pltfm_host);
+	priv->clk = clk;
+	priv->gpio_cd = gpio_cd;
 
 	sdhci_get_of_property(pdev);
 
-	clk_prepare_enable(priv->clk);
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		goto err_clk_prepare;
 
 	ret = sdhci_add_host(host);
 	if (ret)
@@ -111,8 +106,8 @@ err_request_cd:
 	sdhci_remove_host(host, 0);
 err_sdhci_add:
 	clk_disable_unprepare(priv->clk);
+err_clk_prepare:
 	sdhci_pltfm_free(pdev);
-err_sdhci_pltfm_init:
 	return ret;
 }
 
@@ -120,7 +115,7 @@ static int sdhci_sirf_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = pltfm_host->priv;
+	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
 
 	sdhci_pltfm_unregister(pdev);
 
@@ -136,7 +131,7 @@ static int sdhci_sirf_suspend(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = pltfm_host->priv;
+	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
 	ret = sdhci_suspend_host(host);
@@ -152,7 +147,7 @@ static int sdhci_sirf_resume(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = pltfm_host->priv;
+	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
 	ret = clk_enable(priv->clk);
#1 lore raw

PATCH 1/1 mmc: sirf: fix sdhci_pltfm_init sequence

Hi Arnd,

2013/6/4 Arnd Bergmann <[email protected]>:

Quoted 9 lines

Patch "mmc: sdhci: Add size for caller in init+register" changed the interface for sdhci_pltfm_init, while patch "mmc: sdhci-sirf: add mmc host sdhci-pltfm based driver for SiRF SoCs" added a new driver with the old interface.

This changes the sirf driver to use the new interface, avoiding one warning, and simplifying the init sequence. Since we're here already, this also adds an error path for failed clk_prepare_enable.

Quoted 6 lines
Cc Christian Daudt <[email protected]>
Cc Barry Song <[email protected]>
Cc Chris Ball <[email protected]>

----
This needs an Ack from Barry before it can get applied.

would this patch be rebased againest "[PATCH v2] mmc: sdhci-sirf: let device core setup the default pin configuration" at:

http://lists.infradead.org/pipermail/linux-arm-kernel/2013-May/168073.html

i hope Chris apply that one at first, then handle this one.

Quoted 107 lines
drivers/mmc/host/sdhci-sirf.c +22 -27
index 09805af..cc80f26 100644
@@ -24,7 +24,7 @@ struct sdhci_sirf_priv {
 static unsigned int sdhci_sirf_get_max_clk(struct sdhci_host *host)
 {
        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-       struct sdhci_sirf_priv *priv = pltfm_host->priv;
+       struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
        return clk_get_rate(priv->clk);
 }
 
@@ -47,6 +47,8 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
        struct sdhci_pltfm_host *pltfm_host;
        struct sdhci_sirf_priv *priv;
        struct pinctrl *pinctrl;
+       struct clk *clk;
+       int gpio_cd;
        int ret;
 
        pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
@@ -55,38 +57,31 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
                return PTR_ERR(pinctrl);
        }
 
-       priv = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_sirf_priv),
-               GFP_KERNEL);
-       if (!priv) {
-               dev_err(&pdev->dev, "unable to allocate private data");
-               return -ENOMEM;
-       }
-
-       priv->clk = devm_clk_get(&pdev->dev, NULL);
-       if (IS_ERR(priv->clk)) {
+       clk = devm_clk_get(&pdev->dev, NULL);
+       if (IS_ERR(clk)) {
                dev_err(&pdev->dev, "unable to get clock");
-               return PTR_ERR(priv->clk);
+               return PTR_ERR(clk);
        }
 
-       if (pdev->dev.of_node) {
-               priv->gpio_cd = of_get_named_gpio(pdev->dev.of_node,
-                       "cd-gpios", 0);
-       } else {
-               priv->gpio_cd = -EINVAL;
-       }
+       if (pdev->dev.of_node)
+               gpio_cd = of_get_named_gpio(pdev->dev.of_node, "cd-gpios", 0);
+       else
+               gpio_cd = -EINVAL;
 
-       host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata);
-       if (IS_ERR(host)) {
-               ret = PTR_ERR(host);
-               goto err_sdhci_pltfm_init;
-       }
+       host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata, sizeof(struct sdhci_sirf_priv));
+       if (IS_ERR(host))
+               return PTR_ERR(host);
 
        pltfm_host = sdhci_priv(host);
-       pltfm_host->priv = priv;
+       priv = sdhci_pltfm_priv(pltfm_host);
+       priv->clk = clk;
+       priv->gpio_cd = gpio_cd;
 
        sdhci_get_of_property(pdev);
 
-       clk_prepare_enable(priv->clk);
+       ret = clk_prepare_enable(priv->clk);
+       if (ret)
+               goto err_clk_prepare;
 
        ret = sdhci_add_host(host);
        if (ret)
@@ -111,8 +106,8 @@ err_request_cd:
        sdhci_remove_host(host, 0);
 err_sdhci_add:
        clk_disable_unprepare(priv->clk);
+err_clk_prepare:
        sdhci_pltfm_free(pdev);
-err_sdhci_pltfm_init:
        return ret;
 }
 
@@ -120,7 +115,7 @@ static int sdhci_sirf_remove(struct platform_device *pdev)
 {
        struct sdhci_host *host = platform_get_drvdata(pdev);
        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-       struct sdhci_sirf_priv *priv = pltfm_host->priv;
+       struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
 
        sdhci_pltfm_unregister(pdev);
 
@@ -136,7 +131,7 @@ static int sdhci_sirf_suspend(struct device *dev)
 {
        struct sdhci_host *host = dev_get_drvdata(dev);
        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-       struct sdhci_sirf_priv *priv = pltfm_host->priv;
+       struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
        int ret;
 
        ret = sdhci_suspend_host(host);

drivers/mmc/host/sdhci-sirf.c static int sdhci_sirf_resume(struct device *dev) · line 153

Quoted 8 lines
drivers/mmc/host/sdhci-sirf.c +1 -1
@@ -152,7 +147,7 @@ static int sdhci_sirf_resume(struct device *dev)
 {
        struct sdhci_host *host = dev_get_drvdata(dev);
        struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-       struct sdhci_sirf_priv *priv = pltfm_host->priv;
+       struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
        int ret;
 
        ret = clk_enable(priv->clk);

-barry

#2 lore raw

PATCH 1/1 mmc: sirf: fix sdhci_pltfm_init sequence

In reply to Arnd Bergmann
Quoted 124 lines · Arnd Bergmann

Patch "mmc: sdhci: Add size for caller in init+register" changed the interface for sdhci_pltfm_init, while patch "mmc: sdhci-sirf: add mmc host sdhci-pltfm based driver for SiRF SoCs" added a new driver with the old interface.

This changes the sirf driver to use the new interface, avoiding one warning, and simplifying the init sequence. Since we're here already, this also adds an error path for failed clk_prepare_enable.

Cc Christian Daudt <[email protected]>
Cc Barry Song <[email protected]>
Cc Chris Ball <[email protected]>

----
This needs an Ack from Barry before it can get applied.

drivers/mmc/host/sdhci-sirf.c +22 -27
index 09805af..cc80f26 100644
@@ -24,7 +24,7 @@ struct sdhci_sirf_priv {
  static unsigned int sdhci_sirf_get_max_clk(struct sdhci_host *host)
  {
  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = pltfm_host->priv;
+	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
  	return clk_get_rate(priv->clk);
  }
 
@@ -47,6 +47,8 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
  	struct sdhci_pltfm_host *pltfm_host;
  	struct sdhci_sirf_priv *priv;
  	struct pinctrl *pinctrl;
+	struct clk *clk;
+	int gpio_cd;
  	int ret;
 
  	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
@@ -55,38 +57,31 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
  		return PTR_ERR(pinctrl);
  	}
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_sirf_priv),
-		GFP_KERNEL);
-	if (!priv) {
-		dev_err(&pdev->dev, "unable to allocate private data");
-		return -ENOMEM;
-	}
-
-	priv->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(priv->clk)) {
+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
  		dev_err(&pdev->dev, "unable to get clock");
-		return PTR_ERR(priv->clk);
+		return PTR_ERR(clk);
  	}
 
-	if (pdev->dev.of_node) {
-		priv->gpio_cd = of_get_named_gpio(pdev->dev.of_node,
-			"cd-gpios", 0);
-	} else {
-		priv->gpio_cd = -EINVAL;
-	}
+	if (pdev->dev.of_node)
+		gpio_cd = of_get_named_gpio(pdev->dev.of_node, "cd-gpios", 0);
+	else
+		gpio_cd = -EINVAL;
 
-	host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata);
-	if (IS_ERR(host)) {
-		ret = PTR_ERR(host);
-		goto err_sdhci_pltfm_init;
-	}
+	host = sdhci_pltfm_init(pdev, &sdhci_sirf_pdata, sizeof(struct sdhci_sirf_priv));
+	if (IS_ERR(host))
+		return PTR_ERR(host);
 
  	pltfm_host = sdhci_priv(host);
-	pltfm_host->priv = priv;
+	priv = sdhci_pltfm_priv(pltfm_host);
+	priv->clk = clk;
+	priv->gpio_cd = gpio_cd;
 
  	sdhci_get_of_property(pdev);
 
-	clk_prepare_enable(priv->clk);
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		goto err_clk_prepare;
 
  	ret = sdhci_add_host(host);
  	if (ret)
@@ -111,8 +106,8 @@ err_request_cd:
  	sdhci_remove_host(host, 0);
  err_sdhci_add:
  	clk_disable_unprepare(priv->clk);
+err_clk_prepare:
  	sdhci_pltfm_free(pdev);
-err_sdhci_pltfm_init:
  	return ret;
  }
 
@@ -120,7 +115,7 @@ static int sdhci_sirf_remove(struct platform_device *pdev)
  {
  	struct sdhci_host *host = platform_get_drvdata(pdev);
  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = pltfm_host->priv;
+	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
 
  	sdhci_pltfm_unregister(pdev);
 
@@ -136,7 +131,7 @@ static int sdhci_sirf_suspend(struct device *dev)
  {
  	struct sdhci_host *host = dev_get_drvdata(dev);
  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = pltfm_host->priv;
+	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
  	int ret;
 
  	ret = sdhci_suspend_host(host);

drivers/mmc/host/sdhci-sirf.c static int sdhci_sirf_resume(struct device *dev) · line 153

Quoted 8 lines
drivers/mmc/host/sdhci-sirf.c +1 -1
@@ -152,7 +147,7 @@ static int sdhci_sirf_resume(struct device *dev)
  {
  	struct sdhci_host *host = dev_get_drvdata(dev);
  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = pltfm_host->priv;
+	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
  	int ret;
 
  	ret = clk_enable(priv->clk);
#3 lore raw

PATCH 1/1 mmc: sirf: fix sdhci_pltfm_init sequence

In reply to Arnd Bergmann

Hi Arnd,

Quoted 5 lines · Arnd Bergmann

Patch "mmc: sdhci: Add size for caller in init+register" changed the interface for sdhci_pltfm_init, while patch "mmc: sdhci-sirf: add mmc host sdhci-pltfm based driver for SiRF SoCs" added a new driver with the old interface.

Quoted 8 lines

This changes the sirf driver to use the new interface, avoiding one warning, and simplifying the init sequence. Since we're here already, this also adds an error path for failed clk_prepare_enable.

Cc Christian Daudt <[email protected]>
Cc Barry Song <[email protected]>
Cc Chris Ball <[email protected]>

Thanks, fixed the conflict and pushed to mmc-next for 3.11; sorry for the delay.

- Chris.

Signature · 2 lines
Chris Ball   <[email protected]>   <http://printf.net/>
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