usb: musb: dsps: remove the hardcoded phy pieces
dsps uses a nop driver which is added in dsps itself and does the PHY
on/off calls within dsps. Since those calls are now moved the nop driver
itself, we can now request the phy proper phy and remove those calls.
Currently only the first musb interface is used so we only add one phy
node for now.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index e7a2cd1..7433332 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -120,49 +120,8 @@
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
-
-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
*/
@@ -407,8 +366,7 @@
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);
+ musb->xceiv = devm_usb_get_phy_by_phandle(glue->dev, "phys", 0);
if (IS_ERR_OR_NULL(musb->xceiv))
return -EPROBE_DEFER;
@@ -426,9 +384,6 @@
/* Reset the 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);
-
musb->isr = dsps_interrupt;
/* reset the otgdisable bit, needed for host mode to work */
@@ -438,8 +393,6 @@
return 0;
err0:
- usb_put_phy(musb->xceiv);
- usb_nop_xceiv_unregister();
return status;
}
@@ -451,14 +404,7 @@
del_timer_sync(&glue->timer[pdev->id]);
- /* Shutdown the on-chip PHY and its PLL. */
- musb_dsps_phy_control(glue, pdev->id, 0);
usb_phy_shutdown(musb->xceiv);
-
- /* NOP driver needs change if supporting dual instance */
- usb_put_phy(musb->xceiv);
- usb_nop_xceiv_unregister();
-
return 0;
}
@@ -487,16 +433,6 @@
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) {
@@ -680,36 +616,6 @@
return 0;
}
-#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);
- const struct dsps_musb_wrapper *wrp = glue->wrp;
- int i;
-
- for (i = 0; i < wrp->instances; i++)
- musb_dsps_phy_control(glue, i, 0);
-
- 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);
- const struct dsps_musb_wrapper *wrp = glue->wrp;
- int i;
-
- for (i = 0; i < wrp->instances; i++)
- musb_dsps_phy_control(glue, i, 1);
-
- return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(dsps_pm_ops, dsps_suspend, dsps_resume);
-
static const struct dsps_musb_wrapper am33xx_driver_data = {
.revision = 0x00,
.control = 0x14,
@@ -752,7 +658,6 @@
.remove = dsps_remove,
.driver = {
.name = "musb-dsps",
- .pm = &dsps_pm_ops,
.of_match_table = of_match_ptr(musb_dsps_of_match),
},
};