[PATCH v3 05/14] phy: qcom: qmp-usbc: Add DP-related fields for USB/DP switchable PHY

[Xiangxu Yin <xiangxu.yin@oss.qualcomm.com>]

Extend qmp_usbc_offsets and qmp_phy_cfg with DP-specific fields,
including register offsets, init tables, and callback hooks. Also
update qmp_usbc struct to track DP-related resources and state.
This enables support for USB/DP switchable Type-C PHYs that operate
in either mode.

Signed-off-by: Xiangxu Yin <xiangxu.yin@oss.qualcomm.com>
---
 drivers/phy/qualcomm/phy-qcom-qmp-usbc.c | 73 ++++++++++++++++++++++++--------
 1 file changed, 55 insertions(+), 18 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c b/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c
index 5afe090b546977a11265bbffa7c355feb8c72dfa..6b0e86ec43ded3d850f68f248a74c39f74ecb5bb 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-usbc.c
@@ -298,14 +298,19 @@ struct qmp_usbc_offsets {
 	/* for PHYs with >= 2 lanes */
 	u16 tx2;
 	u16 rx2;
+
+	u16 dp_serdes;
+	u16 dp_txa;
+	u16 dp_txb;
+	u16 dp_dp_phy;
 };
 
-/* struct qmp_phy_cfg - per-PHY initialization config */
+struct qmp_usbc;
 struct qmp_phy_cfg {
 	const struct qmp_usbc_offsets *offsets;
 	const enum qmp_phy_usbc_type type;
 
-	/* Init sequence for PHY blocks - serdes, tx, rx, pcs */
+	/* Init sequence for USB PHY blocks - serdes, tx, rx, pcs */
 	const struct qmp_phy_init_tbl *serdes_tbl;
 	int serdes_tbl_num;
 	const struct qmp_phy_init_tbl *tx_tbl;
@@ -315,6 +320,27 @@ struct qmp_phy_cfg {
 	const struct qmp_phy_init_tbl *pcs_tbl;
 	int pcs_tbl_num;
 
+	/* Init sequence for DP PHY blocks - serdes, tx, rbr, hbr, hbr2 */
+	const struct qmp_phy_init_tbl *dp_serdes_tbl;
+	int dp_serdes_tbl_num;
+	const struct qmp_phy_init_tbl *dp_tx_tbl;
+	int dp_tx_tbl_num;
+	const struct qmp_phy_init_tbl *serdes_tbl_rbr;
+	int serdes_tbl_rbr_num;
+	const struct qmp_phy_init_tbl *serdes_tbl_hbr;
+	int serdes_tbl_hbr_num;
+	const struct qmp_phy_init_tbl *serdes_tbl_hbr2;
+	int serdes_tbl_hbr2_num;
+
+	const u8 (*swing_tbl)[4][4];
+	const u8 (*pre_emphasis_tbl)[4][4];
+
+	/* DP PHY callbacks */
+	void (*dp_aux_init)(struct qmp_usbc *qmp);
+	void (*configure_dp_tx)(struct qmp_usbc *qmp);
+	int (*configure_dp_phy)(struct qmp_usbc *qmp);
+	int (*calibrate_dp_phy)(struct qmp_usbc *qmp);
+
 	/* regulators to be requested */
 	const char * const *vreg_list;
 	int num_vregs;
@@ -335,25 +361,36 @@ struct qmp_usbc {
 	void __iomem *rx;
 	void __iomem *tx2;
 	void __iomem *rx2;
-
-	struct regmap *tcsr_map;
-	u32 vls_clamp_reg;
+	void __iomem *dp_dp_phy;
+	void __iomem *dp_tx;
+	void __iomem *dp_tx2;
+	void __iomem *dp_serdes;
 
 	struct clk *pipe_clk;
+	struct clk_fixed_rate pipe_clk_fixed;
+
+	struct clk_hw dp_link_hw;
+	struct clk_hw dp_pixel_hw;
 	struct clk_bulk_data *clks;
 	int num_clks;
 	int num_resets;
 	struct reset_control_bulk_data *resets;
 	struct regulator_bulk_data *vregs;
 
+	struct regmap *tcsr_map;
+	u32 vls_clamp_reg;
+	u32 dp_phy_mode_reg;
+
 	struct mutex phy_mutex;
 
+	struct phy *usb_phy;
 	enum phy_mode mode;
 	unsigned int usb_init_count;
 
-	struct phy *phy;
-
-	struct clk_fixed_rate pipe_clk_fixed;
+	struct phy *dp_phy;
+	unsigned int dp_aux_cfg;
+	struct phy_configure_opts_dp dp_opts;
+	unsigned int dp_init_count;
 
 	struct typec_switch_dev *sw;
 	enum typec_orientation orientation;
@@ -699,7 +736,7 @@ static int __maybe_unused qmp_usbc_runtime_suspend(struct device *dev)
 
 	dev_vdbg(dev, "Suspending QMP phy, mode:%d\n", qmp->mode);
 
-	if (!qmp->phy->init_count) {
+	if (!qmp->usb_init_count && !qmp->dp_init_count) {
 		dev_vdbg(dev, "PHY not initialized, bailing out\n");
 		return 0;
 	}
@@ -719,7 +756,7 @@ static int __maybe_unused qmp_usbc_runtime_resume(struct device *dev)
 
 	dev_vdbg(dev, "Resuming QMP phy, mode:%d\n", qmp->mode);
 
-	if (!qmp->phy->init_count) {
+	if (!qmp->usb_init_count && !qmp->dp_init_count) {
 		dev_vdbg(dev, "PHY not initialized, bailing out\n");
 		return 0;
 	}
@@ -874,11 +911,11 @@ static int qmp_usbc_typec_switch_set(struct typec_switch_dev *sw,
 	qmp->orientation = orientation;
 
 	if (qmp->usb_init_count) {
-		qmp_usbc_usb_power_off(qmp->phy);
-		qmp_usbc_com_exit(qmp->phy);
+		qmp_usbc_usb_power_off(qmp->usb_phy);
+		qmp_usbc_com_exit(qmp->usb_phy);
 
-		qmp_usbc_com_init(qmp->phy);
-		qmp_usbc_usb_power_on(qmp->phy);
+		qmp_usbc_com_init(qmp->usb_phy);
+		qmp_usbc_usb_power_on(qmp->usb_phy);
 	}
 
 	mutex_unlock(&qmp->phy_mutex);
@@ -1106,14 +1143,14 @@ static int qmp_usbc_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_node_put;
 
-	qmp->phy = devm_phy_create(dev, np, &qmp_usbc_usb_phy_ops);
-	if (IS_ERR(qmp->phy)) {
-		ret = PTR_ERR(qmp->phy);
+	qmp->usb_phy = devm_phy_create(dev, np, &qmp_usbc_usb_phy_ops);
+	if (IS_ERR(qmp->usb_phy)) {
+		ret = PTR_ERR(qmp->usb_phy);
 		dev_err(dev, "failed to create PHY: %d\n", ret);
 		goto err_node_put;
 	}
 
-	phy_set_drvdata(qmp->phy, qmp);
+	phy_set_drvdata(qmp->usb_phy, qmp);
 
 	of_node_put(np);
 

-- 
2.34.1