[PATCH 3/7] usb: phy: omap-usb3: Don't use omap_get_control_dev()
From: Roger Quadros <hidden>
Date: 2013-08-01 14:05:36
Also in:
linux-omap, lkml
Subsystem:
omap usb support, the rest, usb subsystem · Maintainers:
Linus Torvalds, Greg Kroah-Hartman
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 <redacted> --- drivers/usb/phy/phy-omap-usb3.c | 20 +++++++++++++++++--- 1 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c
index 4a7f27c..bad032e 100644
--- a/drivers/usb/phy/phy-omap-usb3.c
+++ b/drivers/usb/phy/phy-omap-usb3.c@@ -26,6 +26,7 @@ #include <linux/pm_runtime.h> #include <linux/delay.h> #include <linux/usb/omap_control_usb.h> +#include <linux/of_platform.h> #define PLL_STATUS 0x00000004 #define PLL_GO 0x00000008
@@ -198,6 +199,12 @@ static int omap_usb3_probe(struct platform_device *pdev) { struct omap_usb *phy; struct resource *res; + struct device_node *node = pdev->dev.of_node; + struct device_node *control_node; + struct platform_device *control_pdev; + + if (!node) + return -ENODEV; phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); if (!phy) {
@@ -239,11 +246,18 @@ static int omap_usb3_probe(struct platform_device *pdev) return -EINVAL; } - 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; omap_control_usb_phy_power(phy->control_dev, 0); usb_add_phy_dev(&phy->phy);
--
1.7.4.1