diff mbox

[2/7] usb: phy: omap-usb2: Don't use omap_get_control_dev()

Message ID 1375365915-21380-3-git-send-email-rogerq@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Roger Quadros Aug. 1, 2013, 2:05 p.m. UTC
omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.

As we don't support non-DT boot, we just bail out on probe
if device node is not present.

Signed-off-by: Roger Quadros <rogerq@ti.com>
---
 drivers/usb/phy/phy-omap-usb2.c |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)

Comments

Kishon Vijay Abraham I Aug. 6, 2013, 11:47 a.m. UTC | #1
On Thursday 01 August 2013 07:35 PM, Roger Quadros wrote:
> omap_get_control_dev() is being deprecated as it doesn't support
> multiple instances. As control device is present only from OMAP4
> onwards which supports DT only, we use phandles to get the
> reference to the control device.
>
> As we don't support non-DT boot, we just bail out on probe
> if device node is not present.
>
> Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
>   drivers/usb/phy/phy-omap-usb2.c |   16 +++++++++++++---
>   1 files changed, 13 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/phy/phy-omap-usb2.c b/drivers/usb/phy/phy-omap-usb2.c
> index 376b367..77e0cf4 100644
> --- a/drivers/usb/phy/phy-omap-usb2.c
> +++ b/drivers/usb/phy/phy-omap-usb2.c
> @@ -28,6 +28,7 @@
>   #include <linux/pm_runtime.h>
>   #include <linux/delay.h>
>   #include <linux/usb/omap_control_usb.h>
> +#include <linux/of_platform.h>
>
>   /**
>    * omap_usb2_set_comparator - links the comparator present in the sytem with
> @@ -124,6 +125,8 @@ static int omap_usb2_probe(struct platform_device *pdev)
>   	struct omap_usb			*phy;
>   	struct usb_otg			*otg;
>   	struct device_node *node = pdev->dev.of_node;
> +	struct device_node *control_node;
> +	struct platform_device *control_pdev;
>
>   	if (!node)
>   		return -ENODEV;
> @@ -148,11 +151,18 @@ static int omap_usb2_probe(struct platform_device *pdev)
>   	phy->phy.otg		= otg;
>   	phy->phy.type		= USB_PHY_TYPE_USB2;
>
> -	phy->control_dev = omap_get_control_dev();
> -	if (IS_ERR(phy->control_dev)) {
> -		dev_dbg(&pdev->dev, "Failed to get control device\n");
> +	control_node = of_parse_phandle(node, "ctrl-module", 0);
> +	if (!control_node) {
> +		dev_err(&pdev->dev, "Failed to get control device phandle\n");
>   		return -ENODEV;
>   	}
> +	control_pdev = of_find_device_by_node(control_node);
> +	if (!control_pdev) {
> +		dev_err(&pdev->dev, "Failed to get control device\n");
> +		return -ENODEV;
> +	}
> +
> +	phy->control_dev = &control_pdev->dev;
>
>   	phy->is_suspended	= 1;
>   	omap_control_usb_phy_power(phy->control_dev, 0);
>

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diff mbox

Patch

diff --git a/drivers/usb/phy/phy-omap-usb2.c b/drivers/usb/phy/phy-omap-usb2.c
index 376b367..77e0cf4 100644
--- a/drivers/usb/phy/phy-omap-usb2.c
+++ b/drivers/usb/phy/phy-omap-usb2.c
@@ -28,6 +28,7 @@ 
 #include <linux/pm_runtime.h>
 #include <linux/delay.h>
 #include <linux/usb/omap_control_usb.h>
+#include <linux/of_platform.h>
 
 /**
  * omap_usb2_set_comparator - links the comparator present in the sytem with
@@ -124,6 +125,8 @@  static int omap_usb2_probe(struct platform_device *pdev)
 	struct omap_usb			*phy;
 	struct usb_otg			*otg;
 	struct device_node *node = pdev->dev.of_node;
+	struct device_node *control_node;
+	struct platform_device *control_pdev;
 
 	if (!node)
 		return -ENODEV;
@@ -148,11 +151,18 @@  static int omap_usb2_probe(struct platform_device *pdev)
 	phy->phy.otg		= otg;
 	phy->phy.type		= USB_PHY_TYPE_USB2;
 
-	phy->control_dev = omap_get_control_dev();
-	if (IS_ERR(phy->control_dev)) {
-		dev_dbg(&pdev->dev, "Failed to get control device\n");
+	control_node = of_parse_phandle(node, "ctrl-module", 0);
+	if (!control_node) {
+		dev_err(&pdev->dev, "Failed to get control device phandle\n");
 		return -ENODEV;
 	}
+	control_pdev = of_find_device_by_node(control_node);
+	if (!control_pdev) {
+		dev_err(&pdev->dev, "Failed to get control device\n");
+		return -ENODEV;
+	}
+
+	phy->control_dev = &control_pdev->dev;
 
 	phy->is_suspended	= 1;
 	omap_control_usb_phy_power(phy->control_dev, 0);