[U-Boot] [RFC 33/35] phy: sun4i-usb: Use CLK and RESET support

[Jagan Teki]

Now clock and reset drivers are available for respective
SoC's so use clk and reset ops on phy driver.

Cc: Marek Vasut <marex at denx.de>
Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
---
 drivers/phy/allwinner/phy-sun4i-usb.c | 63 ++++++++++++++++++---------
 1 file changed, 42 insertions(+), 21 deletions(-)

diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
index 81fcd1f910..36db435e37 100644
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -11,10 +11,12 @@
  */
 
 #include <common.h>
+#include <clk.h>
 #include <dm.h>
 #include <dm/device.h>
 #include <generic-phy.h>
 #include <phy-sun4i-usb.h>
+#include <reset.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
@@ -88,38 +90,26 @@ struct sun4i_usb_phy_info {
 	const char *gpio_vbus;
 	const char *gpio_vbus_det;
 	const char *gpio_id_det;
-	int rst_mask;
 } phy_info[] = {
 	{
 		.gpio_vbus = CONFIG_USB0_VBUS_PIN,
 		.gpio_vbus_det = CONFIG_USB0_VBUS_DET,
 		.gpio_id_det = CONFIG_USB0_ID_DET,
-		.rst_mask = (CCM_USB_CTRL_PHY0_RST | CCM_USB_CTRL_PHY0_CLK),
 	},
 	{
 		.gpio_vbus = CONFIG_USB1_VBUS_PIN,
 		.gpio_vbus_det = NULL,
 		.gpio_id_det = NULL,
-		.rst_mask = (CCM_USB_CTRL_PHY1_RST | CCM_USB_CTRL_PHY1_CLK),
 	},
 	{
 		.gpio_vbus = CONFIG_USB2_VBUS_PIN,
 		.gpio_vbus_det = NULL,
 		.gpio_id_det = NULL,
-#ifdef CONFIG_MACH_SUN8I_A83T
-		.rst_mask = (CCM_USB_CTRL_HSIC_RST | CCM_USB_CTRL_HSIC_CLK |
-			     CCM_USB_CTRL_12M_CLK),
-#else
-		.rst_mask = (CCM_USB_CTRL_PHY2_RST | CCM_USB_CTRL_PHY2_CLK),
-#endif
 	},
 	{
 		.gpio_vbus = CONFIG_USB3_VBUS_PIN,
 		.gpio_vbus_det = NULL,
 		.gpio_id_det = NULL,
-#ifdef CONFIG_MACH_SUNXI_H3_H5
-		.rst_mask = (CCM_USB_CTRL_PHY3_RST | CCM_USB_CTRL_PHY3_CLK),
-#endif
 	},
 };
 
@@ -129,13 +119,13 @@ struct sun4i_usb_phy_plat {
 	int gpio_vbus;
 	int gpio_vbus_det;
 	int gpio_id_det;
-	int rst_mask;
+	struct clk clocks;
+	struct reset_ctl resets;
 	int id;
 };
 
 struct sun4i_usb_phy_data {
 	void __iomem *base;
-	struct sunxi_ccm_reg *ccm;
 	const struct sun4i_usb_phy_cfg *cfg;
 	struct sun4i_usb_phy_plat *usb_phy;
 };
@@ -269,8 +259,19 @@ static int sun4i_usb_phy_init(struct phy *phy)
 	struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev);
 	struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id];
 	u32 val;
+	int ret;
 
-	setbits_le32(&data->ccm->usb_clk_cfg, usb_phy->rst_mask);
+	ret = clk_enable(&usb_phy->clocks);
+	if (ret) {
+		dev_err(dev, "failed to enable usb_%ldphy clock\n", phy->id);
+		return ret;
+	}
+
+	ret = reset_deassert(&usb_phy->resets);
+	if (ret) {
+		dev_err(dev, "failed to deassert usb_%ldreset reset\n", phy->id);
+		return ret;
+	}
 
 	if (data->cfg->type == sun8i_a83t_phy) {
 		if (phy->id == 0) {
@@ -311,6 +312,7 @@ static int sun4i_usb_phy_exit(struct phy *phy)
 {
 	struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev);
 	struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id];
+	int ret;
 
 	if (phy->id == 0) {
 		if (data->cfg->type == sun8i_a83t_phy) {
@@ -323,7 +325,17 @@ static int sun4i_usb_phy_exit(struct phy *phy)
 
 	sun4i_usb_phy_passby(phy, false);
 
-	clrbits_le32(&data->ccm->usb_clk_cfg, usb_phy->rst_mask);
+	ret = clk_disable(&usb_phy->clocks);
+	if (ret) {
+		dev_err(dev, "failed to disable usb_%ldphy clock\n", phy->id);
+		return ret;
+	}
+
+	ret = reset_assert(&usb_phy->resets);
+	if (ret) {
+		dev_err(dev, "failed to assert usb_%ldreset reset\n", phy->id);
+		return ret;
+	}
 
 	return 0;
 }
@@ -410,10 +422,6 @@ static int sun4i_usb_phy_probe(struct udevice *dev)
 	if (IS_ERR(data->base))
 		return PTR_ERR(data->base);
 
-	data->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
-	if (IS_ERR(data->ccm))
-		return PTR_ERR(data->ccm);
-
 	data->usb_phy = plat;
 	for (i = 0; i < data->cfg->num_phys; i++) {
 		struct sun4i_usb_phy_plat *phy = &plat[i];
@@ -451,6 +459,20 @@ static int sun4i_usb_phy_probe(struct udevice *dev)
 			sunxi_gpio_set_pull(phy->gpio_id_det, SUNXI_GPIO_PULL_UP);
 		}
 
+		snprintf(name, sizeof(name), "usb%d_phy", i);
+		ret = clk_get_by_name(dev, name, &phy->clocks);
+		if (ret) {
+			dev_err(dev, "failed to get usb%d_phy clock phandle\n", i);
+			return ret;
+		}
+
+		snprintf(name, sizeof(name), "usb%d_reset", i);
+		ret = reset_get_by_name(dev, name, &phy->resets);
+		if (ret) {
+			dev_err(dev, "failed to get usb%d_reset reset phandle\n", i);
+			return ret;
+		}
+
 		if (i || data->cfg->phy0_dual_route) {
 			snprintf(name, sizeof(name), "pmu%d", i);
 			phy->pmu = (void __iomem *)devfdt_get_addr_name(dev, name);
@@ -459,7 +481,6 @@ static int sun4i_usb_phy_probe(struct udevice *dev)
 		}
 
 		phy->id = i;
-		phy->rst_mask = info->rst_mask;
 	};
 
 	debug("Allwinner Sun4I USB PHY driver loaded\n");
-- 
2.17.1