Remove usb phy control module access from platform glue.
The same is now done using amxxxx phy driver and phy-omap-control.
Signed-off-by: George Cherian <george.cherian@xxxxxx>
---
drivers/usb/musb/musb_dsps.c | 105 +++++++++++++++----------------------------
1 file changed, 36 insertions(+), 69 deletions(-)
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 41f135a..8f4e04a 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -123,49 +123,11 @@ struct dsps_glue {
const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */
struct timer_list timer[2]; /* otg_workaround timer */
unsigned long last_timer[2]; /* last timer data for each instance */
- u32 __iomem *usb_ctrl[2];
};
-#define DSPS_AM33XX_CONTROL_MODULE_PHYS_0 0x44e10620
-#define DSPS_AM33XX_CONTROL_MODULE_PHYS_1 0x44e10628
+#define glue_to_musb(g, i) platform_get_drvdata(g->musb[i])
-static const resource_size_t dsps_control_module_phys[] = {
- DSPS_AM33XX_CONTROL_MODULE_PHYS_0,
- DSPS_AM33XX_CONTROL_MODULE_PHYS_1,
-};
-
-#define USBPHY_CM_PWRDN (1 << 0)
-#define USBPHY_OTG_PWRDN (1 << 1)
-#define USBPHY_OTGVDET_EN (1 << 19)
-#define USBPHY_OTGSESSEND_EN (1 << 20)
-
-/**
- * musb_dsps_phy_control - phy on/off
- * @glue: struct dsps_glue *
- * @id: musb instance
- * @on: flag for phy to be switched on or off
- *
- * This is to enable the PHY using usb_ctrl register in system control
- * module space.
- *
- * XXX: This function will be removed once we have a seperate driver for
- * control module
- */
-static void musb_dsps_phy_control(struct dsps_glue *glue, u8 id, u8 on)
-{
- u32 usbphycfg;
- usbphycfg = readl(glue->usb_ctrl[id]);
-
- if (on) {
- usbphycfg &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN);
- usbphycfg |= USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN;
- } else {
- usbphycfg |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN;
- }
-
- writel(usbphycfg, glue->usb_ctrl[id]);
-}
/**
* dsps_musb_enable - enable interrupts
*/
@@ -411,16 +373,31 @@ static int dsps_musb_init(struct musb *musb)
void __iomem *reg_base = musb->ctrl_base;
u32 rev, val;
int status;
+ char phyname[12];
/* mentor core register starts at offset of 0x400 from musb base */
musb->mregs += wrp->musb_core_offset;
- /* NOP driver needs change if supporting dual instance */
- usb_nop_xceiv_register();
- musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
+ if (dev->parent->of_node) {
+ snprintf(phyname , 12, "am335x-usb%d", pdev->id);
+ musb->phy = devm_phy_get(dev->parent, phyname);
+ musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent,
+ "phys", pdev->id);
+ } else {
+ snprintf(phyname , 12, "am335x-usb%d", pdev->id);
+ musb->phy = devm_phy_get(dev, musb->phy_label);
+ musb->xceiv = devm_usb_get_phy_dev(dev, pdev->id);
+ }
+
if (IS_ERR_OR_NULL(musb->xceiv))
return -EPROBE_DEFER;
+ if (IS_ERR_OR_NULL(musb->phy)) {
+ pr_err("no PHY configured\n");
+ return -EPROBE_DEFER;
+ }
+
+
/* Returns zero if e.g. not clocked */
rev = dsps_readl(reg_base, wrp->revision);
if (!rev) {
@@ -434,7 +411,8 @@ static int dsps_musb_init(struct musb *musb)
dsps_writel(reg_base, wrp->control, (1 << wrp->reset));
/* Start the on-chip PHY and its PLL. */
- musb_dsps_phy_control(glue, pdev->id, 1);
+ phy_init(musb->phy);
+ phy_power_on(musb->phy);
musb->isr = dsps_interrupt;
@@ -448,8 +426,7 @@ static int dsps_musb_init(struct musb *musb)
return 0;
err0:
- usb_put_phy(musb->xceiv);
- usb_nop_xceiv_unregister();
+ devm_phy_put(dev->parent, musb->phy);
return status;
}
@@ -462,11 +439,8 @@ static int dsps_musb_exit(struct musb *musb)
del_timer_sync(&glue->timer[pdev->id]);
/* Shutdown the on-chip PHY and its PLL. */
- musb_dsps_phy_control(glue, pdev->id, 0);
-
- /* NOP driver needs change if supporting dual instance */
- usb_put_phy(musb->xceiv);
- usb_nop_xceiv_unregister();
+ phy_power_off(musb->phy);
+ phy_exit(musb->phy);
return 0;
}
@@ -496,16 +470,6 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
char res_name[11];
int ret;
- resources[0].start = dsps_control_module_phys[id];
- resources[0].end = resources[0].start + SZ_4 - 1;
- resources[0].flags = IORESOURCE_MEM;
-
- glue->usb_ctrl[id] = devm_ioremap_resource(&pdev->dev, resources);
- if (IS_ERR(glue->usb_ctrl[id])) {
- ret = PTR_ERR(glue->usb_ctrl[id]);
- goto err0;
- }
-
/* first resource is for usbss, so start index from 1 */
res = platform_get_resource(pdev, IORESOURCE_MEM, id + 1);
if (!res) {
@@ -692,26 +656,29 @@ static int dsps_remove(struct platform_device *pdev)
#ifdef CONFIG_PM_SLEEP
static int dsps_suspend(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev->parent);
- struct dsps_glue *glue = platform_get_drvdata(pdev);
+ struct dsps_glue *glue = dev_get_drvdata(dev);
const struct dsps_musb_wrapper *wrp = glue->wrp;
+ struct musb *musb;
int i;
- for (i = 0; i < wrp->instances; i++)
- musb_dsps_phy_control(glue, i, 0);
-
+ for (i = 0; i < wrp->instances; i++) {
+ musb = glue_to_musb(glue, i);
+ phy_power_off(musb->phy);
+ }
return 0;
}
static int dsps_resume(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev->parent);
- struct dsps_glue *glue = platform_get_drvdata(pdev);
+ struct dsps_glue *glue = dev_get_drvdata(dev);
const struct dsps_musb_wrapper *wrp = glue->wrp;
+ struct musb *musb;
int i;
- for (i = 0; i < wrp->instances; i++)
- musb_dsps_phy_control(glue, i, 1);
+ for (i = 0; i < wrp->instances; i++) {
+ musb = glue_to_musb(glue, i);
+ phy_power_on(musb->phy);
+ }
return 0;
}
--
1.8.1.4
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