[PATCH v3 1/6] phy: realtek: usb2: introduce vstatus/new_reg_req variables to driver data

Rustam Adilov posted 6 patches 4 hours ago
[PATCH v3 1/6] phy: realtek: usb2: introduce vstatus/new_reg_req variables to driver data
Posted by Rustam Adilov 4 hours ago
In RTL9607C SoC, the vstatus register is located at a certain offset from
the base and so introduce the vstatus_offset to handle it.

Busy bit of the vstatus and new_reg_req bit are also different and so
introduce these variables to the driver data as well.

Add these variables to the pre-existing phy cfg structs for RTD SoCs and
assign them the default values.

Co-developed-by: Michael Zavertkin <misha.zavertkin@mail.ru>
Signed-off-by: Michael Zavertkin <misha.zavertkin@mail.ru>
Signed-off-by: Rustam Adilov <adilov@disroot.org>
---
 drivers/phy/realtek/phy-rtk-usb2.c | 59 ++++++++++++++++++++++++------
 1 file changed, 48 insertions(+), 11 deletions(-)

diff --git a/drivers/phy/realtek/phy-rtk-usb2.c b/drivers/phy/realtek/phy-rtk-usb2.c
index 248550ef98ca..f5d2f0c3376a 100644
--- a/drivers/phy/realtek/phy-rtk-usb2.c
+++ b/drivers/phy/realtek/phy-rtk-usb2.c
@@ -64,6 +64,9 @@ struct phy_reg {
 	void __iomem *reg_wrap_vstatus;
 	void __iomem *reg_gusb2phyacc0;
 	int vstatus_index;
+	int vstatus_offset;
+	int vstatus_busy;
+	int new_reg_req;
 };
 
 struct phy_data {
@@ -96,6 +99,9 @@ struct phy_cfg {
 	bool do_toggle_driving;
 	bool use_default_parameter;
 	bool is_double_sensitivity_mode;
+	int vstatus_offset;
+	int vstatus_busy;
+	int new_reg_req;
 };
 
 struct phy_parameter {
@@ -162,21 +168,21 @@ static char rtk_phy_read(struct phy_reg *phy_reg, char addr)
 	addr -= OFFEST_PHY_READ;
 
 	/* polling until VBusy == 0 */
-	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, phy_reg->vstatus_busy, 0);
 	if (ret)
 		return (char)ret;
 
 	/* VCtrl = low nibble of addr, and set PHY_NEW_REG_REQ */
-	val = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+	val = phy_reg->new_reg_req | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
 	writel(val, reg_gusb2phyacc0);
-	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, phy_reg->vstatus_busy, 0);
 	if (ret)
 		return (char)ret;
 
 	/* VCtrl = high nibble of addr, and set PHY_NEW_REG_REQ */
-	val = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+	val = phy_reg->new_reg_req | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
 	writel(val, reg_gusb2phyacc0);
-	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, phy_reg->vstatus_busy, 0);
 	if (ret)
 		return (char)ret;
 
@@ -194,25 +200,25 @@ static int rtk_phy_write(struct phy_reg *phy_reg, char addr, char data)
 	int ret = 0;
 
 	/* write data to VStatusOut2 (data output to phy) */
-	writel((u32)data << shift_bits, reg_wrap_vstatus);
+	writel((u32)data << shift_bits, reg_wrap_vstatus + phy_reg->vstatus_offset);
 
-	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, phy_reg->vstatus_busy, 0);
 	if (ret)
 		return ret;
 
 	/* VCtrl = low nibble of addr, set PHY_NEW_REG_REQ */
-	val = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+	val = phy_reg->new_reg_req | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
 
 	writel(val, reg_gusb2phyacc0);
-	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, phy_reg->vstatus_busy, 0);
 	if (ret)
 		return ret;
 
 	/* VCtrl = high nibble of addr, set PHY_NEW_REG_REQ */
-	val = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+	val = phy_reg->new_reg_req | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
 
 	writel(val, reg_gusb2phyacc0);
-	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, phy_reg->vstatus_busy, 0);
 	if (ret)
 		return ret;
 
@@ -957,6 +963,7 @@ static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy,
 
 static int parse_phy_data(struct rtk_phy *rtk_phy)
 {
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
 	struct device *dev = rtk_phy->dev;
 	struct device_node *np = dev->of_node;
 	struct phy_parameter *phy_parameter;
@@ -974,6 +981,9 @@ static int parse_phy_data(struct rtk_phy *rtk_phy)
 		phy_parameter->phy_reg.reg_wrap_vstatus = of_iomap(np, 0);
 		phy_parameter->phy_reg.reg_gusb2phyacc0 = of_iomap(np, 1) + index;
 		phy_parameter->phy_reg.vstatus_index = index;
+		phy_parameter->phy_reg.vstatus_offset = phy_cfg->vstatus_offset;
+		phy_parameter->phy_reg.vstatus_busy = phy_cfg->vstatus_busy;
+		phy_parameter->phy_reg.new_reg_req = phy_cfg->new_reg_req;
 
 		if (of_property_read_bool(np, "realtek,inverse-hstx-sync-clock"))
 			phy_parameter->inverse_hstx_sync_clock = true;
@@ -1085,6 +1095,9 @@ static const struct phy_cfg rtd1295_phy_cfg = {
 	.driving_updated_for_dev_dis = 0xf,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = false,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct phy_cfg rtd1395_phy_cfg = {
@@ -1109,6 +1122,9 @@ static const struct phy_cfg rtd1395_phy_cfg = {
 	.driving_updated_for_dev_dis = 0xf,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = false,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct phy_cfg rtd1395_phy_cfg_2port = {
@@ -1133,6 +1149,9 @@ static const struct phy_cfg rtd1395_phy_cfg_2port = {
 	.driving_updated_for_dev_dis = 0xf,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = false,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct phy_cfg rtd1619_phy_cfg = {
@@ -1155,6 +1174,9 @@ static const struct phy_cfg rtd1619_phy_cfg = {
 	.driving_updated_for_dev_dis = 0xf,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = false,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct phy_cfg rtd1319_phy_cfg = {
@@ -1181,6 +1203,9 @@ static const struct phy_cfg rtd1319_phy_cfg = {
 	.driving_updated_for_dev_dis = 0xf,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = true,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct phy_cfg rtd1312c_phy_cfg = {
@@ -1206,6 +1231,9 @@ static const struct phy_cfg rtd1312c_phy_cfg = {
 	.driving_updated_for_dev_dis = 0xf,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = true,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct phy_cfg rtd1619b_phy_cfg = {
@@ -1231,6 +1259,9 @@ static const struct phy_cfg rtd1619b_phy_cfg = {
 	.driving_updated_for_dev_dis = 0x8,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = true,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct phy_cfg rtd1319d_phy_cfg = {
@@ -1256,6 +1287,9 @@ static const struct phy_cfg rtd1319d_phy_cfg = {
 	.driving_updated_for_dev_dis = 0x8,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = true,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct phy_cfg rtd1315e_phy_cfg = {
@@ -1282,6 +1316,9 @@ static const struct phy_cfg rtd1315e_phy_cfg = {
 	.driving_updated_for_dev_dis = 0x8,
 	.use_default_parameter = false,
 	.is_double_sensitivity_mode = true,
+	.vstatus_offset = 0,
+	.vstatus_busy = PHY_VSTS_BUSY,
+	.new_reg_req = PHY_NEW_REG_REQ,
 };
 
 static const struct of_device_id usbphy_rtk_dt_match[] = {
-- 
2.53.0