usb: phy: ab8500-usb: add regulator support
Add initial regulator support to ab8500-usb by introducing necessary
devm_regulator_get().
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 441b295..1bc24d4 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -32,6 +32,7 @@
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/usb/musb-ux500.h>
+#include <linux/regulator/consumer.h>
/* Bank AB8500_SYS_CTRL2_BLOCK */
#define AB8500_MAIN_WD_CTRL_REG 0x01
@@ -126,6 +127,9 @@
struct work_struct phy_dis_work;
unsigned long link_status_wait;
enum ab8500_usb_mode mode;
+ struct regulator *v_ape;
+ struct regulator *v_musb;
+ struct regulator *v_ulpi;
int previous_link_status_state;
};
@@ -590,6 +594,34 @@
return 0;
}
+static int ab8500_usb_regulator_get(struct ab8500_usb *ab)
+{
+ int err;
+
+ ab->v_ape = devm_regulator_get(ab->dev, "v-ape");
+ if (IS_ERR(ab->v_ape)) {
+ dev_err(ab->dev, "Could not get v-ape supply\n");
+ err = PTR_ERR(ab->v_ape);
+ return err;
+ }
+
+ ab->v_ulpi = devm_regulator_get(ab->dev, "vddulpivio18");
+ if (IS_ERR(ab->v_ulpi)) {
+ dev_err(ab->dev, "Could not get vddulpivio18 supply\n");
+ err = PTR_ERR(ab->v_ulpi);
+ return err;
+ }
+
+ ab->v_musb = devm_regulator_get(ab->dev, "musb_1v8");
+ if (IS_ERR(ab->v_musb)) {
+ dev_err(ab->dev, "Could not get musb_1v8 supply\n");
+ err = PTR_ERR(ab->v_musb);
+ return err;
+ }
+
+ return 0;
+}
+
static int ab8500_usb_irq_setup(struct platform_device *pdev,
struct ab8500_usb *ab)
{
@@ -687,6 +719,10 @@
/* all: Disable phy when called from set_host and set_peripheral */
INIT_WORK(&ab->phy_dis_work, ab8500_usb_phy_disable_work);
+ err = ab8500_usb_regulator_get(ab);
+ if (err)
+ return err;
+
err = ab8500_usb_irq_setup(pdev, ab);
if (err < 0)
return err;