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-rw-r--r--drivers/usb/gadget/s3c-hsotg.c55
1 files changed, 39 insertions, 16 deletions
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 50b57b21d130..f39daf7a7dce 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -30,6 +30,8 @@
30#include <linux/clk.h> 30#include <linux/clk.h>
31#include <linux/regulator/consumer.h> 31#include <linux/regulator/consumer.h>
32#include <linux/of_platform.h> 32#include <linux/of_platform.h>
33#include <linux/phy/phy.h>
34#include <linux/usb/phy.h>
33 35
34#include <linux/usb/ch9.h> 36#include <linux/usb/ch9.h>
35#include <linux/usb/gadget.h> 37#include <linux/usb/gadget.h>
@@ -138,6 +140,7 @@ struct s3c_hsotg_ep {
138 * @dev: The parent device supplied to the probe function 140 * @dev: The parent device supplied to the probe function
139 * @driver: USB gadget driver 141 * @driver: USB gadget driver
140 * @phy: The otg phy transceiver structure for phy control. 142 * @phy: The otg phy transceiver structure for phy control.
143 * @uphy: The otg phy transceiver structure for old USB phy control.
141 * @plat: The platform specific configuration data. This can be removed once 144 * @plat: The platform specific configuration data. This can be removed once
142 * all SoCs support usb transceiver. 145 * all SoCs support usb transceiver.
143 * @regs: The memory area mapped for accessing registers. 146 * @regs: The memory area mapped for accessing registers.
@@ -159,7 +162,8 @@ struct s3c_hsotg_ep {
159struct s3c_hsotg { 162struct s3c_hsotg {
160 struct device *dev; 163 struct device *dev;
161 struct usb_gadget_driver *driver; 164 struct usb_gadget_driver *driver;
162 struct usb_phy *phy; 165 struct phy *phy;
166 struct usb_phy *uphy;
163 struct s3c_hsotg_plat *plat; 167 struct s3c_hsotg_plat *plat;
164 168
165 spinlock_t lock; 169 spinlock_t lock;
@@ -2909,8 +2913,11 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg)
2909 2913
2910 dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev); 2914 dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev);
2911 2915
2912 if (hsotg->phy) 2916 if (hsotg->phy) {
2913 usb_phy_init(hsotg->phy); 2917 phy_init(hsotg->phy);
2918 phy_power_on(hsotg->phy);
2919 } else if (hsotg->uphy)
2920 usb_phy_init(hsotg->uphy);
2914 else if (hsotg->plat->phy_init) 2921 else if (hsotg->plat->phy_init)
2915 hsotg->plat->phy_init(pdev, hsotg->plat->phy_type); 2922 hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
2916} 2923}
@@ -2926,8 +2933,11 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg)
2926{ 2933{
2927 struct platform_device *pdev = to_platform_device(hsotg->dev); 2934 struct platform_device *pdev = to_platform_device(hsotg->dev);
2928 2935
2929 if (hsotg->phy) 2936 if (hsotg->phy) {
2930 usb_phy_shutdown(hsotg->phy); 2937 phy_power_off(hsotg->phy);
2938 phy_exit(hsotg->phy);
2939 } else if (hsotg->uphy)
2940 usb_phy_shutdown(hsotg->uphy);
2931 else if (hsotg->plat->phy_exit) 2941 else if (hsotg->plat->phy_exit)
2932 hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type); 2942 hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
2933} 2943}
@@ -3534,7 +3544,8 @@ static void s3c_hsotg_delete_debug(struct s3c_hsotg *hsotg)
3534static int s3c_hsotg_probe(struct platform_device *pdev) 3544static int s3c_hsotg_probe(struct platform_device *pdev)
3535{ 3545{
3536 struct s3c_hsotg_plat *plat = dev_get_platdata(&pdev->dev); 3546 struct s3c_hsotg_plat *plat = dev_get_platdata(&pdev->dev);
3537 struct usb_phy *phy; 3547 struct phy *phy;
3548 struct usb_phy *uphy;
3538 struct device *dev = &pdev->dev; 3549 struct device *dev = &pdev->dev;
3539 struct s3c_hsotg_ep *eps; 3550 struct s3c_hsotg_ep *eps;
3540 struct s3c_hsotg *hsotg; 3551 struct s3c_hsotg *hsotg;
@@ -3549,19 +3560,26 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
3549 return -ENOMEM; 3560 return -ENOMEM;
3550 } 3561 }
3551 3562
3552 phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); 3563 /*
3564 * Attempt to find a generic PHY, then look for an old style
3565 * USB PHY, finally fall back to pdata
3566 */
3567 phy = devm_phy_get(&pdev->dev, "usb2-phy");
3553 if (IS_ERR(phy)) { 3568 if (IS_ERR(phy)) {
3554 /* Fallback for pdata */ 3569 uphy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
3555 plat = dev_get_platdata(&pdev->dev); 3570 if (IS_ERR(uphy)) {
3556 if (!plat) { 3571 /* Fallback for pdata */
3557 dev_err(&pdev->dev, "no platform data or transceiver defined\n"); 3572 plat = dev_get_platdata(&pdev->dev);
3558 return -EPROBE_DEFER; 3573 if (!plat) {
3559 } else { 3574 dev_err(&pdev->dev,
3575 "no platform data or transceiver defined\n");
3576 return -EPROBE_DEFER;
3577 }
3560 hsotg->plat = plat; 3578 hsotg->plat = plat;
3561 } 3579 } else
3562 } else { 3580 hsotg->uphy = uphy;
3581 } else
3563 hsotg->phy = phy; 3582 hsotg->phy = phy;
3564 }
3565 3583
3566 hsotg->dev = dev; 3584 hsotg->dev = dev;
3567 3585
@@ -3628,6 +3646,9 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
3628 goto err_supplies; 3646 goto err_supplies;
3629 } 3647 }
3630 3648
3649 if (hsotg->phy)
3650 phy_init(hsotg->phy);
3651
3631 /* usb phy enable */ 3652 /* usb phy enable */
3632 s3c_hsotg_phy_enable(hsotg); 3653 s3c_hsotg_phy_enable(hsotg);
3633 3654
@@ -3721,6 +3742,8 @@ static int s3c_hsotg_remove(struct platform_device *pdev)
3721 } 3742 }
3722 3743
3723 s3c_hsotg_phy_disable(hsotg); 3744 s3c_hsotg_phy_disable(hsotg);
3745 if (hsotg->phy)
3746 phy_exit(hsotg->phy);
3724 clk_disable_unprepare(hsotg->clk); 3747 clk_disable_unprepare(hsotg->clk);
3725 3748
3726 return 0; 3749 return 0;