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usb: phy: ab8500-usb: add regulator support

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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>
This commit is contained in:
Fabio Baltieri 2013-04-03 10:45:06 +02:00 committed by Felipe Balbi
parent c2a0ab6bd5
commit e65b36c026
1 changed files with 36 additions and 0 deletions
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36
drivers/usb/phy/phy-ab8500-usb.c
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@ -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 ab8500_usb {
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 @@ static int ab8500_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
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 @@ static int ab8500_usb_probe(struct platform_device *pdev)
/* 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;