[PATCH] usb: twl6030-usb: make driver DT only

[PATCH] usb: twl6030-usb: make driver DT only

[Nicolae Rosia]

All users are DT-only and it makes no sense to keep
unused code

Signed-off-by: Nicolae Rosia <Nicolae_Rosia-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org>
---
 drivers/usb/phy/Kconfig           |  1 +
 drivers/usb/phy/phy-twl6030-usb.c | 23 ++++++-----------------
 2 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index b9c409a..61cef75 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -84,6 +84,7 @@ config SAMSUNG_USBPHY
 config TWL6030_USB
 	tristate "TWL6030 USB Transceiver Driver"
 	depends on TWL4030_CORE && OMAP_USB2 && USB_MUSB_OMAP2PLUS
+	depends on OF
 	help
 	  Enable this to support the USB OTG transceiver on TWL6030
 	  family chips. This TWL6030 transceiver has the VBUS and ID GND
diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c
index a72e8d6..628b600 100644
--- a/drivers/usb/phy/phy-twl6030-usb.c
+++ b/drivers/usb/phy/phy-twl6030-usb.c
@@ -108,7 +108,6 @@ struct twl6030_usb {
 	enum musb_vbus_id_status linkstat;
 	u8			asleep;
 	bool			vbus_enable;
-	const char		*regulator;
 };
 
 #define	comparator_to_twl(x) container_of((x), struct twl6030_usb, comparator)
@@ -166,7 +165,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
 	/* Program MISC2 register and set bit VUSB_IN_VBAT */
 	twl6030_writeb(twl, TWL6030_MODULE_ID0, 0x10, TWL6030_MISC2);
 
-	twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
+	twl->usb3v3 = regulator_get(twl->dev, "usb");
 	if (IS_ERR(twl->usb3v3))
 		return -ENODEV;
 
@@ -341,7 +340,11 @@ static int twl6030_usb_probe(struct platform_device *pdev)
 	int			status, err;
 	struct device_node	*np = pdev->dev.of_node;
 	struct device		*dev = &pdev->dev;
-	struct twl4030_usb_data	*pdata = dev_get_platdata(dev);
+
+	if (!np) {
+		dev_err(dev, "no DT info\n");
+		return -EINVAL;
+	}
 
 	twl = devm_kzalloc(dev, sizeof(*twl), GFP_KERNEL);
 	if (!twl)
@@ -361,18 +364,6 @@ static int twl6030_usb_probe(struct platform_device *pdev)
 		return -EPROBE_DEFER;
 	}
 
-	if (np) {
-		twl->regulator = "usb";
-	} else if (pdata) {
-		if (pdata->features & TWL6032_SUBCLASS)
-			twl->regulator = "ldousb";
-		else
-			twl->regulator = "vusb";
-	} else {
-		dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
-		return -EINVAL;
-	}

Re: [PATCH] usb: twl6030-usb: make driver DT only

[Felipe Balbi]

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Hi,

Nicolae Rosia <Nicolae_Rosia-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org> writes:
> All users are DT-only and it makes no sense to keep
> unused code
>
> Signed-off-by: Nicolae Rosia <Nicolae_Rosia-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org>

I need an Acked-by from either Tony, Roger or Bin

> ---
>  drivers/usb/phy/Kconfig           |  1 +
>  drivers/usb/phy/phy-twl6030-usb.c | 23 ++++++-----------------
>  2 files changed, 7 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
> index b9c409a..61cef75 100644
> --- a/drivers/usb/phy/Kconfig
> +++ b/drivers/usb/phy/Kconfig
> @@ -84,6 +84,7 @@ config SAMSUNG_USBPHY
>  config TWL6030_USB
>  	tristate "TWL6030 USB Transceiver Driver"
>  	depends on TWL4030_CORE && OMAP_USB2 && USB_MUSB_OMAP2PLUS
> +	depends on OF
>  	help
>  	  Enable this to support the USB OTG transceiver on TWL6030
>  	  family chips. This TWL6030 transceiver has the VBUS and ID GND
> diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c
> index a72e8d6..628b600 100644
> --- a/drivers/usb/phy/phy-twl6030-usb.c
> +++ b/drivers/usb/phy/phy-twl6030-usb.c
> @@ -108,7 +108,6 @@ struct twl6030_usb {
>  	enum musb_vbus_id_status linkstat;
>  	u8			asleep;
>  	bool			vbus_enable;
> -	const char		*regulator;
>  };
>  
>  #define	comparator_to_twl(x) container_of((x), struct twl6030_usb, comparator)
> @@ -166,7 +165,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
>  	/* Program MISC2 register and set bit VUSB_IN_VBAT */
>  	twl6030_writeb(twl, TWL6030_MODULE_ID0, 0x10, TWL6030_MISC2);
>  
> -	twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
> +	twl->usb3v3 = regulator_get(twl->dev, "usb");
>  	if (IS_ERR(twl->usb3v3))
>  		return -ENODEV;
>  
> @@ -341,7 +340,11 @@ static int twl6030_usb_probe(struct platform_device *pdev)
>  	int			status, err;
>  	struct device_node	*np = pdev->dev.of_node;
>  	struct device		*dev = &pdev->dev;
> -	struct twl4030_usb_data	*pdata = dev_get_platdata(dev);
> +
> +	if (!np) {
> +		dev_err(dev, "no DT info\n");
> +		return -EINVAL;
> +	}
>  
>  	twl = devm_kzalloc(dev, sizeof(*twl), GFP_KERNEL);
>  	if (!twl)
> @@ -361,18 +364,6 @@ static int twl6030_usb_probe(struct platform_device *pdev)
>  		return -EPROBE_DEFER;
>  	}
>  
> -	if (np) {
> -		twl->regulator = "usb";
> -	} else if (pdata) {
> -		if (pdata->features & TWL6032_SUBCLASS)
> -			twl->regulator = "ldousb";
> -		else
> -			twl->regulator = "vusb";
> -	} else {
> -		dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
> -		return -EINVAL;
> -	}
> -
>  	/* init spinlock for workqueue */
>  	spin_lock_init(&twl->lock);
>  
> @@ -436,13 +427,11 @@ static int twl6030_usb_remove(struct platform_device *pdev)
>  	return 0;
>  }
>  
> -#ifdef CONFIG_OF
>  static const struct of_device_id twl6030_usb_id_table[] = {
>  	{ .compatible = "ti,twl6030-usb" },
>  	{}
>  };
>  MODULE_DEVICE_TABLE(of, twl6030_usb_id_table);
> -#endif
>  
>  static struct platform_driver twl6030_usb_driver = {
>  	.probe		= twl6030_usb_probe,
> -- 
> 2.5.5
>
> --
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-- 
balbi

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Re: [PATCH] usb: twl6030-usb: make driver DT only

[Tony Lindgren]

* Felipe Balbi <balbi-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> [161114 00:51]:
> 
> Hi,
> 
> Nicolae Rosia <Nicolae_Rosia-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org> writes:
> > All users are DT-only and it makes no sense to keep
> > unused code
> >
> > Signed-off-by: Nicolae Rosia <Nicolae_Rosia-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org>
> 
> I need an Acked-by from either Tony, Roger or Bin

We've had omap4 booting in device tree only mode for years now, so:

Acked-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
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