[PATCH v7 05/14] usb: dwc3: use the phy bulk API to get phys

Chunfeng Yun
2020-04-29T06:05:21Z

Get a group of phys by the phy bulk API

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Weijie Gao <weijie.gao@mediatek.com>
---
v7: use new API of phy bulk

v6: add Reviewed-by Weijie

v5: no changes

v4: new patch
---
drivers/usb/dwc3/core.c | 87 ++++++---------------------------
drivers/usb/dwc3/dwc3-generic.c | 7 ++-
include/dwc3-uboot.h | 11 ++---
3 files changed, 24 insertions(+), 81 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 4ec3f6df6a..a8982bdc09 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -838,87 +838,32 @@ MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver");

#if CONFIG_IS_ENABLED(PHY) && CONFIG_IS_ENABLED(DM_USB)
-int dwc3_setup_phy(struct udevice *dev, struct phy **array, int *num_phys)
+int dwc3_setup_phy(struct udevice *dev, struct phy_bulk *phys)
{
- int i, ret, count;
- struct phy *usb_phys;
-
- /* Return if no phy declared */
- if (!dev_read_prop(dev, "phys", NULL))
- return 0;
- count = dev_count_phandle_with_args(dev, "phys", "#phy-cells");
- if (count <= 0)
- return count;
-
- usb_phys = devm_kcalloc(dev, count, sizeof(struct phy),
- GFP_KERNEL);
- if (!usb_phys)
- return -ENOMEM;
-
- for (i = 0; i < count; i++) {
- ret = generic_phy_get_by_index(dev, i, &usb_phys[i]);
- if (ret && ret != -ENOENT) {
- pr_err("Failed to get USB PHY%d for %s\n",
- i, dev->name);
- return ret;
- }
- }
-
- for (i = 0; i < count; i++) {
- ret = generic_phy_init(&usb_phys[i]);
- if (ret) {
- pr_err("Can't init USB PHY%d for %s\n",
- i, dev->name);
- goto phys_init_err;
- }
- }
-
- for (i = 0; i < count; i++) {
- ret = generic_phy_power_on(&usb_phys[i]);
- if (ret) {
- pr_err("Can't power USB PHY%d for %s\n",
- i, dev->name);
- goto phys_poweron_err;
- }
- }
-
- *array = usb_phys;
- *num_phys = count;
- return 0;
-
-phys_poweron_err:
- for (i = count - 1; i >= 0; i--)
- generic_phy_power_off(&usb_phys[i]);
+ int ret;

- for (i = 0; i < count; i++)
- generic_phy_exit(&usb_phys[i]);
+ ret = generic_phy_get_bulk(dev, phys);
+ if (ret)
+ return ret;

- return ret;
+ ret = generic_phy_init_bulk(phys);
+ if (ret)
+ return ret;

-phys_init_err:
- for (; i >= 0; i--)
- generic_phy_exit(&usb_phys[i]);
+ ret = generic_phy_power_on_bulk(phys);
+ if (ret)
+ generic_phy_exit_bulk(phys);

return ret;
}

-int dwc3_shutdown_phy(struct udevice *dev, struct phy *usb_phys, int num_phys)
+int dwc3_shutdown_phy(struct udevice *dev, struct phy_bulk *phys)
{
- int i, ret;
-
- for (i = 0; i < num_phys; i++) {
- if (!generic_phy_valid(&usb_phys[i]))
- continue;
-
- ret = generic_phy_power_off(&usb_phys[i]);
- ret |= generic_phy_exit(&usb_phys[i]);
- if (ret) {
- pr_err("Can't shutdown USB PHY%d for %s\n",
- i, dev->name);
- }
- }
+ int ret;

- return 0;
+ ret = generic_phy_power_off_bulk(phys);
+ ret |= generic_phy_exit_bulk(phys);
+ return ret;
}
#endif

diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
index febcfc0f54..eabd53a36d 100644
--- a/drivers/usb/dwc3/dwc3-generic.c
+++ b/drivers/usb/dwc3/dwc3-generic.c
@@ -33,8 +33,7 @@ struct dwc3_generic_plat {
struct dwc3_generic_priv {
void *base;
struct dwc3 dwc3;
- struct phy *phys;
- int num_phys;
+ struct phy_bulk phys;
};

struct dwc3_generic_host_priv {
@@ -56,7 +55,7 @@ static int dwc3_generic_probe(struct udevice *dev,
dwc3_of_parse(dwc3);
#endif

- rc = dwc3_setup_phy(dev, &priv->phys, &priv->num_phys);
+ rc = dwc3_setup_phy(dev, &priv->phys);
if (rc)
return rc;

@@ -79,7 +78,7 @@ static int dwc3_generic_remove(struct udevice *dev,
struct dwc3 *dwc3 = &priv->dwc3;

dwc3_remove(dwc3);
- dwc3_shutdown_phy(dev, priv->phys, priv->num_phys);
+ dwc3_shutdown_phy(dev, &priv->phys);
unmap_physmem(dwc3->regs, MAP_NOCACHE);

return 0;
diff --git a/include/dwc3-uboot.h b/include/dwc3-uboot.h
index 3c9e204cf0..ce835fd1b2 100644
--- a/include/dwc3-uboot.h
+++ b/include/dwc3-uboot.h
@@ -9,6 +9,7 @@
#ifndef __DWC3_UBOOT_H_
#define __DWC3_UBOOT_H_

+#include <generic-phy.h>
#include <linux/usb/otg.h>
#include <linux/usb/phy.h>

@@ -43,17 +44,15 @@ void dwc3_uboot_handle_interrupt(int index);

struct phy;
#if CONFIG_IS_ENABLED(PHY) && CONFIG_IS_ENABLED(DM_USB)
-int dwc3_setup_phy(struct udevice *dev, struct phy **array, int *num_phys);
-int dwc3_shutdown_phy(struct udevice *dev, struct phy *usb_phys, int num_phys);
+int dwc3_setup_phy(struct udevice *dev, struct phy_bulk *phys);
+int dwc3_shutdown_phy(struct udevice *dev, struct phy_bulk *phys);
#else
-static inline int dwc3_setup_phy(struct udevice *dev, struct phy **array,
- int *num_phys)
+static inline int dwc3_setup_phy(struct udevice *dev, struct phy_bulk *phys)
{
return -ENOTSUPP;
}

-static inline int dwc3_shutdown_phy(struct udevice *dev, struct phy *usb_phys,
- int num_phys)
+static inline int dwc3_shutdown_phy(struct udevice *dev, struct phy_bulk *phys)
{
return -ENOTSUPP;
}
--
2.25.1