[PATCH v6 0/7] phy: qcom-qmp: provide DP phy support for sm8250

[PATCH v6 0/7] phy: qcom-qmp: provide DP phy support for sm8250

[Dmitry Baryshkov]

Changes since v5:
 - Rebase on top of phy-next
 - Rework 'move DP functions to callbacks' patch to leave most of the
   code in place, using function prototypes.

Changes since v4:
 - Fix typo in the qcom,sc7180-qmp-usb3-phy name in the first patch

Changes since v3:
 - Move qcom,sc7180-qmp-usb3-phy and qcom,sdm845-qmp-usb3-phy from
   qcom,qmp-usb3-dp.yaml to qcom,qmp-phy.yaml
 - Do not touch qcom,sm8250-qmp-usb3-phy compatible

Changes since v2:
 - Drop unused qmp_v4_usb3_rx_tbl

Changes since v1:
 - Provide dt bindings
 - Split register renaming from sm8250-dp-phy patch
 - Add respective changes to sm8250 device tree

[PATCH v6 1/7] dt-bindings: phy: qcom,qmp-usb3-dp-phy: move usb3 compatibles back to qcom,qmp-phy.yaml

[Dmitry Baryshkov]

The commit 724fabf5df13 ("dt-bindings: phy: qcom,qmp-usb3-dp: Add DP phy
information") has support for DP part of USB3+DP combo PHYs. However
this change is not backwards compatible, placing additional requirements
onto qcom,sc7180-qmp-usb3-phy and qcom,sdm845-qmp-usb3-phy device nodes
(to include separate DP part, etc). However the aforementioned nodes do
not inclue DP part, they strictly follow the schema defined in the
qcom,qmp-phy.yaml file. Move those compatibles, leaving
qcom,qmp-usb3-dp-phy.yaml to describe only real "combo" USB3+DP device nodes.

Fixes: 724fabf5df13 ("dt-bindings: phy: qcom,qmp-usb3-dp: Add DP phy information")
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml         | 2 ++
 Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
index 626447fee092..7808ec8bc712 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
@@ -25,11 +25,13 @@ properties:
       - qcom,msm8998-qmp-pcie-phy
       - qcom,msm8998-qmp-ufs-phy
       - qcom,msm8998-qmp-usb3-phy
+      - qcom,sc7180-qmp-usb3-phy
       - qcom,sc8180x-qmp-ufs-phy
       - qcom,sc8180x-qmp-usb3-phy
       - qcom,sdm845-qhp-pcie-phy
       - qcom,sdm845-qmp-pcie-phy
       - qcom,sdm845-qmp-ufs-phy
+      - qcom,sdm845-qmp-usb3-phy
       - qcom,sdm845-qmp-usb3-uni-phy
       - qcom,sm8150-qmp-ufs-phy
       - qcom,sm8150-qmp-usb3-phy
diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
index 33974ad10afe..62c0179d1765 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
@@ -14,9 +14,7 @@ properties:
   compatible:
     enum:
       - qcom,sc7180-qmp-usb3-dp-phy
-      - qcom,sc7180-qmp-usb3-phy
       - qcom,sdm845-qmp-usb3-dp-phy
-      - qcom,sdm845-qmp-usb3-phy
   reg:
     items:
       - description: Address and length of PHY's USB serdes block.
-- 
2.30.2

[PATCH v6 2/7] dt-bindings: phy: qcom,qmp-usb3-dp: Add support for SM8250

[Dmitry Baryshkov]

Add compatible for SM8250 in QMP USB3 DP PHY bindings.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
index 62c0179d1765..217aa6c91893 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
@@ -15,6 +15,7 @@ properties:
     enum:
       - qcom,sc7180-qmp-usb3-dp-phy
       - qcom,sdm845-qmp-usb3-dp-phy
+      - qcom,sm8250-qmp-usb3-dp-phy
   reg:
     items:
       - description: Address and length of PHY's USB serdes block.
-- 
2.30.2

[PATCH v6 3/7] phy: qcom-qmp: move DP functions to callbacks

[Dmitry Baryshkov]

In preparation to adding support for V4 DP PHY move DP functions to
callbacks at struct qmp_phy_cfg.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c | 73 ++++++++++++++++++++---------
 1 file changed, 51 insertions(+), 22 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 1c79a713780d..854f6ff7faef 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -2268,6 +2268,8 @@ static const struct qmp_phy_init_tbl sm8350_usb3_uniphy_pcs_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21),
 };
 
+struct qmp_phy;
+
 /* struct qmp_phy_cfg - per-PHY initialization config */
 struct qmp_phy_cfg {
 	/* phy-type - PCIE/UFS/USB */
@@ -2307,6 +2309,12 @@ struct qmp_phy_cfg {
 	const struct qmp_phy_init_tbl *serdes_tbl_hbr3;
 	int serdes_tbl_hbr3_num;
 
+	/* DP PHY callbacks */
+	int (*configure_dp_phy)(struct qmp_phy *qphy);
+	void (*configure_dp_tx)(struct qmp_phy *qphy);
+	int (*calibrate_dp_phy)(struct qmp_phy *qphy);
+	void (*dp_aux_init)(struct qmp_phy *qphy);
+
 	/* clock ids to be requested */
 	const char * const *clk_list;
 	int num_clks;
@@ -2423,6 +2431,11 @@ struct qcom_qmp {
 	struct reset_control *ufs_reset;
 };
 
+static void qcom_qmp_v3_phy_dp_aux_init(struct qmp_phy *qphy);
+static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy);
+static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy);
+static int qcom_qmp_v3_dp_phy_calibrate(struct qmp_phy *qphy);
+
 static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val)
 {
 	u32 reg;
@@ -2871,6 +2884,11 @@ static const struct qmp_phy_cfg sc7180_dpphy_cfg = {
 
 	.has_phy_dp_com_ctrl	= true,
 	.is_dual_lane_phy	= true,
+
+	.dp_aux_init = qcom_qmp_v3_phy_dp_aux_init,
+	.configure_dp_tx = qcom_qmp_v3_phy_configure_dp_tx,
+	.configure_dp_phy = qcom_qmp_v3_phy_configure_dp_phy,
+	.calibrate_dp_phy = qcom_qmp_v3_dp_phy_calibrate,
 };
 
 static const struct qmp_phy_combo_cfg sc7180_usb3dpphy_cfg = {
@@ -3332,7 +3350,7 @@ static int qcom_qmp_phy_serdes_init(struct qmp_phy *qphy)
 	return 0;
 }
 
-static void qcom_qmp_phy_dp_aux_init(struct qmp_phy *qphy)
+static void qcom_qmp_v3_phy_dp_aux_init(struct qmp_phy *qphy)
 {
 	writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN |
 	       DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN,
@@ -3403,7 +3421,7 @@ static const u8 qmp_dp_v3_voltage_swing_hbr_rbr[4][4] = {
 	{ 0x1f, 0xff, 0xff, 0xff }
 };
 
-static void qcom_qmp_phy_configure_dp_tx(struct qmp_phy *qphy)
+static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy)
 {
 	const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts;
 	unsigned int v_level = 0, p_level = 0;
@@ -3451,21 +3469,7 @@ static void qcom_qmp_phy_configure_dp_tx(struct qmp_phy *qphy)
 	writel(bias_en, qphy->tx2 + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN);
 }
 
-static int qcom_qmp_dp_phy_configure(struct phy *phy, union phy_configure_opts *opts)
-{
-	const struct phy_configure_opts_dp *dp_opts = &opts->dp;
-	struct qmp_phy *qphy = phy_get_drvdata(phy);
-
-	memcpy(&qphy->dp_opts, dp_opts, sizeof(*dp_opts));
-	if (qphy->dp_opts.set_voltages) {
-		qcom_qmp_phy_configure_dp_tx(qphy);
-		qphy->dp_opts.set_voltages = 0;
-	}
-
-	return 0;
-}
-
-static int qcom_qmp_phy_configure_dp_phy(struct qmp_phy *qphy)
+static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy)
 {
 	const struct qmp_phy_dp_clks *dp_clks = qphy->dp_clks;
 	const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts;
@@ -3561,9 +3565,8 @@ static int qcom_qmp_phy_configure_dp_phy(struct qmp_phy *qphy)
  * We need to calibrate the aux setting here as many times
  * as the caller tries
  */
-static int qcom_qmp_dp_phy_calibrate(struct phy *phy)
+static int qcom_qmp_v3_dp_phy_calibrate(struct qmp_phy *qphy)
 {
-	struct qmp_phy *qphy = phy_get_drvdata(phy);
 	static const u8 cfg1_settings[] = { 0x13, 0x23, 0x1d };
 	u8 val;
 
@@ -3576,6 +3579,32 @@ static int qcom_qmp_dp_phy_calibrate(struct phy *phy)
 	return 0;
 }
 
+static int qcom_qmp_dp_phy_configure(struct phy *phy, union phy_configure_opts *opts)
+{
+	const struct phy_configure_opts_dp *dp_opts = &opts->dp;
+	struct qmp_phy *qphy = phy_get_drvdata(phy);
+	const struct qmp_phy_cfg *cfg = qphy->cfg;
+
+	memcpy(&qphy->dp_opts, dp_opts, sizeof(*dp_opts));
+	if (qphy->dp_opts.set_voltages) {
+		cfg->configure_dp_tx(qphy);
+		qphy->dp_opts.set_voltages = 0;
+	}
+
+	return 0;
+}
+
+static int qcom_qmp_dp_phy_calibrate(struct phy *phy)
+{
+	struct qmp_phy *qphy = phy_get_drvdata(phy);
+	const struct qmp_phy_cfg *cfg = qphy->cfg;
+
+	if (cfg->calibrate_dp_phy)
+		return cfg->calibrate_dp_phy(qphy);
+
+	return 0;
+}
+
 static int qcom_qmp_phy_com_init(struct qmp_phy *qphy)
 {
 	struct qcom_qmp *qmp = qphy->qmp;
@@ -3748,7 +3777,7 @@ static int qcom_qmp_phy_init(struct phy *phy)
 		return ret;
 
 	if (cfg->type == PHY_TYPE_DP)
-		qcom_qmp_phy_dp_aux_init(qphy);
+		cfg->dp_aux_init(qphy);
 
 	return 0;
 }
@@ -3802,7 +3831,7 @@ static int qcom_qmp_phy_power_on(struct phy *phy)
 
 	/* Configure special DP tx tunings */
 	if (cfg->type == PHY_TYPE_DP)
-		qcom_qmp_phy_configure_dp_tx(qphy);
+		cfg->configure_dp_tx(qphy);
 
 	qcom_qmp_phy_configure_lane(rx, cfg->regs,
 				    cfg->rx_tbl, cfg->rx_tbl_num, 1);
@@ -3821,7 +3850,7 @@ static int qcom_qmp_phy_power_on(struct phy *phy)
 
 	/* Configure link rate, swing, etc. */
 	if (cfg->type == PHY_TYPE_DP) {
-		qcom_qmp_phy_configure_dp_phy(qphy);
+		cfg->configure_dp_phy(qphy);
 	} else {
 		qcom_qmp_phy_configure(pcs, cfg->regs, cfg->pcs_tbl, cfg->pcs_tbl_num);
 		if (cfg->pcs_tbl_sec)
-- 
2.30.2

[PATCH v6 4/7] phy: qcom-qmp: rename common registers

[Dmitry Baryshkov]

A plenty of DP PHY registers are common between V3 and V4. To simplify
V4 code, rename all common registers.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c | 50 ++++++++++++++---------------
 drivers/phy/qualcomm/phy-qcom-qmp.h | 37 ++++++++++-----------
 2 files changed, 44 insertions(+), 43 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 854f6ff7faef..e1dbc9d936e7 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -3354,20 +3354,20 @@ static void qcom_qmp_v3_phy_dp_aux_init(struct qmp_phy *qphy)
 {
 	writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN |
 	       DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN,
-	       qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL);
+	       qphy->pcs + QSERDES_DP_PHY_PD_CTL);
 
 	/* Turn on BIAS current for PHY/PLL */
 	writel(QSERDES_V3_COM_BIAS_EN | QSERDES_V3_COM_BIAS_EN_MUX |
 	       QSERDES_V3_COM_CLKBUF_L_EN | QSERDES_V3_COM_EN_SYSCLK_TX_SEL,
 	       qphy->serdes + QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN);
 
-	writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL);
+	writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_DP_PHY_PD_CTL);
 
 	writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN |
 	       DP_PHY_PD_CTL_LANE_0_1_PWRDN |
 	       DP_PHY_PD_CTL_LANE_2_3_PWRDN | DP_PHY_PD_CTL_PLL_PWRDN |
 	       DP_PHY_PD_CTL_DP_CLAMP_EN,
-	       qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL);
+	       qphy->pcs + QSERDES_DP_PHY_PD_CTL);
 
 	writel(QSERDES_V3_COM_BIAS_EN |
 	       QSERDES_V3_COM_BIAS_EN_MUX | QSERDES_V3_COM_CLKBUF_R_EN |
@@ -3375,16 +3375,16 @@ static void qcom_qmp_v3_phy_dp_aux_init(struct qmp_phy *qphy)
 	       QSERDES_V3_COM_CLKBUF_RX_DRIVE_L,
 	       qphy->serdes + QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN);
 
-	writel(0x00, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG0);
-	writel(0x13, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1);
-	writel(0x24, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG2);
-	writel(0x00, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG3);
-	writel(0x0a, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG4);
-	writel(0x26, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG5);
-	writel(0x0a, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG6);
-	writel(0x03, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG7);
-	writel(0xbb, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG8);
-	writel(0x03, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG9);
+	writel(0x00, qphy->pcs + QSERDES_DP_PHY_AUX_CFG0);
+	writel(0x13, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1);
+	writel(0x24, qphy->pcs + QSERDES_DP_PHY_AUX_CFG2);
+	writel(0x00, qphy->pcs + QSERDES_DP_PHY_AUX_CFG3);
+	writel(0x0a, qphy->pcs + QSERDES_DP_PHY_AUX_CFG4);
+	writel(0x26, qphy->pcs + QSERDES_DP_PHY_AUX_CFG5);
+	writel(0x0a, qphy->pcs + QSERDES_DP_PHY_AUX_CFG6);
+	writel(0x03, qphy->pcs + QSERDES_DP_PHY_AUX_CFG7);
+	writel(0xbb, qphy->pcs + QSERDES_DP_PHY_AUX_CFG8);
+	writel(0x03, qphy->pcs + QSERDES_DP_PHY_AUX_CFG9);
 	qphy->dp_aux_cfg = 0;
 
 	writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK |
@@ -3494,9 +3494,9 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy)
 	 *	writel(0x4c, qphy->pcs + QSERDES_V3_DP_PHY_MODE);
 	 */
 	val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN;
-	writel(val, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL);
+	writel(val, qphy->pcs + QSERDES_DP_PHY_PD_CTL);
 
-	writel(0x5c, qphy->pcs + QSERDES_V3_DP_PHY_MODE);
+	writel(0x5c, qphy->pcs + QSERDES_DP_PHY_MODE);
 	writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX0_TX1_LANE_CTL);
 	writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX2_TX3_LANE_CTL);
 
@@ -3526,11 +3526,11 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy)
 	clk_set_rate(dp_clks->dp_link_hw.clk, dp_opts->link_rate * 100000);
 	clk_set_rate(dp_clks->dp_pixel_hw.clk, pixel_freq);
 
-	writel(0x04, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG2);
-	writel(0x01, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
-	writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
-	writel(0x01, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
-	writel(0x09, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
+	writel(0x04, qphy->pcs + QSERDES_DP_PHY_AUX_CFG2);
+	writel(0x01, qphy->pcs + QSERDES_DP_PHY_CFG);
+	writel(0x05, qphy->pcs + QSERDES_DP_PHY_CFG);
+	writel(0x01, qphy->pcs + QSERDES_DP_PHY_CFG);
+	writel(0x09, qphy->pcs + QSERDES_DP_PHY_CFG);
 
 	writel(0x20, qphy->serdes + QSERDES_V3_COM_RESETSM_CNTRL);
 
@@ -3541,7 +3541,7 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy)
 			10000))
 		return -ETIMEDOUT;
 
-	writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
+	writel(0x19, qphy->pcs + QSERDES_DP_PHY_CFG);
 
 	if (readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS,
 			status,
@@ -3550,9 +3550,9 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy)
 			10000))
 		return -ETIMEDOUT;
 
-	writel(0x18, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
+	writel(0x18, qphy->pcs + QSERDES_DP_PHY_CFG);
 	udelay(2000);
-	writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
+	writel(0x19, qphy->pcs + QSERDES_DP_PHY_CFG);
 
 	return readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS,
 			status,
@@ -3574,7 +3574,7 @@ static int qcom_qmp_v3_dp_phy_calibrate(struct qmp_phy *qphy)
 	qphy->dp_aux_cfg %= ARRAY_SIZE(cfg1_settings);
 	val = cfg1_settings[qphy->dp_aux_cfg];
 
-	writel(val, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1);
+	writel(val, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1);
 
 	return 0;
 }
@@ -3922,7 +3922,7 @@ static int qcom_qmp_phy_power_off(struct phy *phy)
 
 	if (cfg->type == PHY_TYPE_DP) {
 		/* Assert DP PHY power down */
-		writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL);
+		writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_DP_PHY_PD_CTL);
 	} else {
 		/* PHY reset */
 		if (!cfg->no_pcs_sw_reset)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.h b/drivers/phy/qualcomm/phy-qcom-qmp.h
index 71ce3aa174ae..981d8ee891c0 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.h
@@ -349,13 +349,13 @@
 #define QPHY_V3_PCS_MISC_OSC_DTCT_MODE2_CONFIG4		0x5c
 #define QPHY_V3_PCS_MISC_OSC_DTCT_MODE2_CONFIG5		0x60
 
-/* Only for QMP V3 PHY - DP PHY registers */
-#define QSERDES_V3_DP_PHY_REVISION_ID0			0x000
-#define QSERDES_V3_DP_PHY_REVISION_ID1			0x004
-#define QSERDES_V3_DP_PHY_REVISION_ID2			0x008
-#define QSERDES_V3_DP_PHY_REVISION_ID3			0x00c
-#define QSERDES_V3_DP_PHY_CFG				0x010
-#define QSERDES_V3_DP_PHY_PD_CTL			0x018
+/* QMP PHY - DP PHY registers */
+#define QSERDES_DP_PHY_REVISION_ID0			0x000
+#define QSERDES_DP_PHY_REVISION_ID1			0x004
+#define QSERDES_DP_PHY_REVISION_ID2			0x008
+#define QSERDES_DP_PHY_REVISION_ID3			0x00c
+#define QSERDES_DP_PHY_CFG				0x010
+#define QSERDES_DP_PHY_PD_CTL				0x018
 # define DP_PHY_PD_CTL_PWRDN				0x001
 # define DP_PHY_PD_CTL_PSR_PWRDN			0x002
 # define DP_PHY_PD_CTL_AUX_PWRDN			0x004
@@ -363,18 +363,19 @@
 # define DP_PHY_PD_CTL_LANE_2_3_PWRDN			0x010
 # define DP_PHY_PD_CTL_PLL_PWRDN			0x020
 # define DP_PHY_PD_CTL_DP_CLAMP_EN			0x040
-#define QSERDES_V3_DP_PHY_MODE				0x01c
-#define QSERDES_V3_DP_PHY_AUX_CFG0			0x020
-#define QSERDES_V3_DP_PHY_AUX_CFG1			0x024
-#define QSERDES_V3_DP_PHY_AUX_CFG2			0x028
-#define QSERDES_V3_DP_PHY_AUX_CFG3			0x02c
-#define QSERDES_V3_DP_PHY_AUX_CFG4			0x030
-#define QSERDES_V3_DP_PHY_AUX_CFG5			0x034
-#define QSERDES_V3_DP_PHY_AUX_CFG6			0x038
-#define QSERDES_V3_DP_PHY_AUX_CFG7			0x03c
-#define QSERDES_V3_DP_PHY_AUX_CFG8			0x040
-#define QSERDES_V3_DP_PHY_AUX_CFG9			0x044
+#define QSERDES_DP_PHY_MODE				0x01c
+#define QSERDES_DP_PHY_AUX_CFG0				0x020
+#define QSERDES_DP_PHY_AUX_CFG1				0x024
+#define QSERDES_DP_PHY_AUX_CFG2				0x028
+#define QSERDES_DP_PHY_AUX_CFG3				0x02c
+#define QSERDES_DP_PHY_AUX_CFG4				0x030
+#define QSERDES_DP_PHY_AUX_CFG5				0x034
+#define QSERDES_DP_PHY_AUX_CFG6				0x038
+#define QSERDES_DP_PHY_AUX_CFG7				0x03c
+#define QSERDES_DP_PHY_AUX_CFG8				0x040
+#define QSERDES_DP_PHY_AUX_CFG9				0x044
 
+/* Only for QMP V3 PHY - DP PHY registers */
 #define QSERDES_V3_DP_PHY_AUX_INTERRUPT_MASK		0x048
 # define PHY_AUX_STOP_ERR_MASK				0x01
 # define PHY_AUX_DEC_ERR_MASK				0x02
-- 
2.30.2

[PATCH v6 5/7] phy: qcom-qmp: add support for sm8250-usb3-dp phy

[Dmitry Baryshkov]

Add support for QMP V4 Combo USB3+DP PHY (for SM8250 platform).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c | 394 ++++++++++++++++++++++++++--
 drivers/phy/qualcomm/phy-qcom-qmp.h |  40 ++-
 2 files changed, 412 insertions(+), 22 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index e1dbc9d936e7..7877f70cf86f 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -1840,6 +1840,86 @@ static const struct qmp_phy_init_tbl sm8250_usb3_uniphy_pcs_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21),
 };
 
+static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SVS_MODE_CLK_SEL, 0x05),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0x3b),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYS_CLK_CTRL, 0x02),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_ENABLE1, 0x0c),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_BUF_ENABLE, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_SELECT, 0x30),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_IVCO, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE0, 0x36),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE0, 0x16),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE0, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_CONFIG, 0x02),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_INTEGLOOP_GAIN0_MODE0, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_INTEGLOOP_GAIN1_MODE0, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_MAP, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START1_MODE0, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BG_TIMER, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORECLK_DIV_MODE0, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_CTRL, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIAS_EN_CLKBUFLR_EN, 0x17),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORE_CLK_EN, 0x1f),
+};
+
+static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_rbr[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x05),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x69),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0x80),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x6f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x08),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x04),
+};
+
+static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x03),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x69),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0x80),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x0e),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x08),
+};
+
+static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr2[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x01),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x8c),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x1f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x1c),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x08),
+};
+
+static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr3[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x69),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0x80),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x2f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x2a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x08),
+};
+
+static const struct qmp_phy_init_tbl qmp_v4_dp_tx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_VMODE_CTRL1, 0x40),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_PRE_STALL_LDO_BOOST_EN, 0x30),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_INTERFACE_SELECT, 0x3b),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_CLKBUF_ENABLE, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_RESET_TSYNC_EN, 0x03),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_TRAN_DRVR_EMP_EN, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_PARRATE_REC_DETECT_IDLE_EN, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_INTERFACE_MODE, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_TX, 0x11),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_RX, 0x11),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_BAND, 0x4),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_POL_INV, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_DRV_LVL, 0x2a),
+	QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_EMP_POST1_LVL, 0x20),
+};
+
 static const struct qmp_phy_init_tbl sm8250_qmp_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0x08),
 	QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_SELECT, 0x34),
@@ -2436,6 +2516,11 @@ static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy);
 static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy);
 static int qcom_qmp_v3_dp_phy_calibrate(struct qmp_phy *qphy);
 
+static void qcom_qmp_v4_phy_dp_aux_init(struct qmp_phy *qphy);
+static void qcom_qmp_v4_phy_configure_dp_tx(struct qmp_phy *qphy);
+static int qcom_qmp_v4_phy_configure_dp_phy(struct qmp_phy *qphy);
+static int qcom_qmp_v4_dp_phy_calibrate(struct qmp_phy *qphy);
+
 static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val)
 {
 	u32 reg;
@@ -3141,6 +3226,46 @@ static const struct qmp_phy_cfg sm8250_usb3_uniphy_cfg = {
 	.pwrdn_delay_max	= POWER_DOWN_DELAY_US_MAX,
 };
 
+static const struct qmp_phy_cfg sm8250_dpphy_cfg = {
+	.type			= PHY_TYPE_DP,
+	.nlanes			= 1,
+
+	.serdes_tbl		= qmp_v4_dp_serdes_tbl,
+	.serdes_tbl_num		= ARRAY_SIZE(qmp_v4_dp_serdes_tbl),
+	.tx_tbl			= qmp_v4_dp_tx_tbl,
+	.tx_tbl_num		= ARRAY_SIZE(qmp_v4_dp_tx_tbl),
+
+	.serdes_tbl_rbr		= qmp_v4_dp_serdes_tbl_rbr,
+	.serdes_tbl_rbr_num	= ARRAY_SIZE(qmp_v4_dp_serdes_tbl_rbr),
+	.serdes_tbl_hbr		= qmp_v4_dp_serdes_tbl_hbr,
+	.serdes_tbl_hbr_num	= ARRAY_SIZE(qmp_v4_dp_serdes_tbl_hbr),
+	.serdes_tbl_hbr2	= qmp_v4_dp_serdes_tbl_hbr2,
+	.serdes_tbl_hbr2_num	= ARRAY_SIZE(qmp_v4_dp_serdes_tbl_hbr2),
+	.serdes_tbl_hbr3	= qmp_v4_dp_serdes_tbl_hbr3,
+	.serdes_tbl_hbr3_num	= ARRAY_SIZE(qmp_v4_dp_serdes_tbl_hbr3),
+
+	.clk_list		= qmp_v4_phy_clk_l,
+	.num_clks		= ARRAY_SIZE(qmp_v4_phy_clk_l),
+	.reset_list		= msm8996_usb3phy_reset_l,
+	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.regs			= qmp_v4_usb3phy_regs_layout,
+
+	.has_phy_dp_com_ctrl	= true,
+	.is_dual_lane_phy	= true,
+
+	.dp_aux_init = qcom_qmp_v4_phy_dp_aux_init,
+	.configure_dp_tx = qcom_qmp_v4_phy_configure_dp_tx,
+	.configure_dp_phy = qcom_qmp_v4_phy_configure_dp_phy,
+	.calibrate_dp_phy = qcom_qmp_v4_dp_phy_calibrate,
+};
+
+static const struct qmp_phy_combo_cfg sm8250_usb3dpphy_cfg = {
+	.usb_cfg		= &sm8250_usb3phy_cfg,
+	.dp_cfg			= &sm8250_dpphy_cfg,
+};
+
 static const struct qmp_phy_cfg sdx55_usb3_uniphy_cfg = {
 	.type			= PHY_TYPE_USB3,
 	.nlanes			= 1,
@@ -3421,11 +3546,11 @@ static const u8 qmp_dp_v3_voltage_swing_hbr_rbr[4][4] = {
 	{ 0x1f, 0xff, 0xff, 0xff }
 };
 
-static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy)
+static int qcom_qmp_phy_configure_dp_swing(struct qmp_phy *qphy,
+		unsigned int drv_lvl_reg, unsigned int emp_post_reg)
 {
 	const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts;
 	unsigned int v_level = 0, p_level = 0;
-	u32 bias_en, drvr_en;
 	u8 voltage_swing_cfg, pre_emphasis_cfg;
 	int i;
 
@@ -3434,14 +3559,6 @@ static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy)
 		p_level = max(p_level, dp_opts->pre[i]);
 	}
 
-	if (dp_opts->lanes == 1) {
-		bias_en = 0x3e;
-		drvr_en = 0x13;
-	} else {
-		bias_en = 0x3f;
-		drvr_en = 0x10;
-	}
-
 	if (dp_opts->link_rate <= 2700) {
 		voltage_swing_cfg = qmp_dp_v3_voltage_swing_hbr_rbr[v_level][p_level];
 		pre_emphasis_cfg = qmp_dp_v3_pre_emphasis_hbr_rbr[v_level][p_level];
@@ -3452,16 +3569,37 @@ static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy)
 
 	/* TODO: Move check to config check */
 	if (voltage_swing_cfg == 0xFF && pre_emphasis_cfg == 0xFF)
-		return;
+		return -EINVAL;
 
 	/* Enable MUX to use Cursor values from these registers */
 	voltage_swing_cfg |= DP_PHY_TXn_TX_DRV_LVL_MUX_EN;
 	pre_emphasis_cfg |= DP_PHY_TXn_TX_EMP_POST1_LVL_MUX_EN;
 
-	writel(voltage_swing_cfg, qphy->tx + QSERDES_V3_TX_TX_DRV_LVL);
-	writel(pre_emphasis_cfg, qphy->tx + QSERDES_V3_TX_TX_EMP_POST1_LVL);
-	writel(voltage_swing_cfg, qphy->tx2 + QSERDES_V3_TX_TX_DRV_LVL);
-	writel(pre_emphasis_cfg, qphy->tx2 + QSERDES_V3_TX_TX_EMP_POST1_LVL);
+	writel(voltage_swing_cfg, qphy->tx + drv_lvl_reg);
+	writel(pre_emphasis_cfg, qphy->tx + emp_post_reg);
+	writel(voltage_swing_cfg, qphy->tx2 + drv_lvl_reg);
+	writel(pre_emphasis_cfg, qphy->tx2 + emp_post_reg);
+
+	return 0;
+}
+
+static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy)
+{
+	const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts;
+	u32 bias_en, drvr_en;
+
+	if (qcom_qmp_phy_configure_dp_swing(qphy,
+				QSERDES_V3_TX_TX_DRV_LVL,
+				QSERDES_V3_TX_TX_EMP_POST1_LVL) < 0)
+		return;
+
+	if (dp_opts->lanes == 1) {
+		bias_en = 0x3e;
+		drvr_en = 0x13;
+	} else {
+		bias_en = 0x3f;
+		drvr_en = 0x10;
+	}
 
 	writel(drvr_en, qphy->tx + QSERDES_V3_TX_HIGHZ_DRVR_EN);
 	writel(bias_en, qphy->tx + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN);
@@ -3469,12 +3607,10 @@ static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy)
 	writel(bias_en, qphy->tx2 + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN);
 }
 
-static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy)
+static bool qcom_qmp_phy_configure_dp_mode(struct qmp_phy *qphy)
 {
-	const struct qmp_phy_dp_clks *dp_clks = qphy->dp_clks;
-	const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts;
-	u32 val, phy_vco_div, status;
-	unsigned long pixel_freq;
+	u32 val;
+	bool reverse = false;
 
 	val = DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN |
 	      DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN;
@@ -3497,6 +3633,19 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy)
 	writel(val, qphy->pcs + QSERDES_DP_PHY_PD_CTL);
 
 	writel(0x5c, qphy->pcs + QSERDES_DP_PHY_MODE);
+
+	return reverse;
+}
+
+static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy)
+{
+	const struct qmp_phy_dp_clks *dp_clks = qphy->dp_clks;
+	const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts;
+	u32 phy_vco_div, status;
+	unsigned long pixel_freq;
+
+	qcom_qmp_phy_configure_dp_mode(qphy);
+
 	writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX0_TX1_LANE_CTL);
 	writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX2_TX3_LANE_CTL);
 
@@ -3579,6 +3728,204 @@ static int qcom_qmp_v3_dp_phy_calibrate(struct qmp_phy *qphy)
 	return 0;
 }
 
+static void qcom_qmp_v4_phy_dp_aux_init(struct qmp_phy *qphy)
+{
+	writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_PSR_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN |
+	       DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN,
+	       qphy->pcs + QSERDES_DP_PHY_PD_CTL);
+
+	/* Turn on BIAS current for PHY/PLL */
+	writel(0x17, qphy->serdes + QSERDES_V4_COM_BIAS_EN_CLKBUFLR_EN);
+
+	writel(0x00, qphy->pcs + QSERDES_DP_PHY_AUX_CFG0);
+	writel(0x13, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1);
+	writel(0xa4, qphy->pcs + QSERDES_DP_PHY_AUX_CFG2);
+	writel(0x00, qphy->pcs + QSERDES_DP_PHY_AUX_CFG3);
+	writel(0x0a, qphy->pcs + QSERDES_DP_PHY_AUX_CFG4);
+	writel(0x26, qphy->pcs + QSERDES_DP_PHY_AUX_CFG5);
+	writel(0x0a, qphy->pcs + QSERDES_DP_PHY_AUX_CFG6);
+	writel(0x03, qphy->pcs + QSERDES_DP_PHY_AUX_CFG7);
+	writel(0xb7, qphy->pcs + QSERDES_DP_PHY_AUX_CFG8);
+	writel(0x03, qphy->pcs + QSERDES_DP_PHY_AUX_CFG9);
+	qphy->dp_aux_cfg = 0;
+
+	writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK |
+	       PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK |
+	       PHY_AUX_REQ_ERR_MASK,
+	       qphy->pcs + QSERDES_V4_DP_PHY_AUX_INTERRUPT_MASK);
+}
+
+static void qcom_qmp_v4_phy_configure_dp_tx(struct qmp_phy *qphy)
+{
+	/* Program default values before writing proper values */
+	writel(0x27, qphy->tx + QSERDES_V4_TX_TX_DRV_LVL);
+	writel(0x27, qphy->tx2 + QSERDES_V4_TX_TX_DRV_LVL);
+
+	writel(0x20, qphy->tx + QSERDES_V4_TX_TX_EMP_POST1_LVL);
+	writel(0x20, qphy->tx2 + QSERDES_V4_TX_TX_EMP_POST1_LVL);
+
+	qcom_qmp_phy_configure_dp_swing(qphy,
+			QSERDES_V4_TX_TX_DRV_LVL,
+			QSERDES_V4_TX_TX_EMP_POST1_LVL);
+}
+
+static int qcom_qmp_v4_phy_configure_dp_phy(struct qmp_phy *qphy)
+{
+	const struct qmp_phy_dp_clks *dp_clks = qphy->dp_clks;
+	const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts;
+	u32 phy_vco_div, status;
+	unsigned long pixel_freq;
+	u32 bias0_en, drvr0_en, bias1_en, drvr1_en;
+	bool reverse;
+
+	writel(0x0f, qphy->pcs + QSERDES_V4_DP_PHY_CFG_1);
+
+	reverse = qcom_qmp_phy_configure_dp_mode(qphy);
+
+	writel(0x13, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1);
+	writel(0xa4, qphy->pcs + QSERDES_DP_PHY_AUX_CFG2);
+
+	writel(0x05, qphy->pcs + QSERDES_V4_DP_PHY_TX0_TX1_LANE_CTL);
+	writel(0x05, qphy->pcs + QSERDES_V4_DP_PHY_TX2_TX3_LANE_CTL);
+
+	switch (dp_opts->link_rate) {
+	case 1620:
+		phy_vco_div = 0x1;
+		pixel_freq = 1620000000UL / 2;
+		break;
+	case 2700:
+		phy_vco_div = 0x1;
+		pixel_freq = 2700000000UL / 2;
+		break;
+	case 5400:
+		phy_vco_div = 0x2;
+		pixel_freq = 5400000000UL / 4;
+		break;
+	case 8100:
+		phy_vco_div = 0x0;
+		pixel_freq = 8100000000UL / 6;
+		break;
+	default:
+		/* Other link rates aren't supported */
+		return -EINVAL;
+	}
+	writel(phy_vco_div, qphy->pcs + QSERDES_V4_DP_PHY_VCO_DIV);
+
+	clk_set_rate(dp_clks->dp_link_hw.clk, dp_opts->link_rate * 100000);
+	clk_set_rate(dp_clks->dp_pixel_hw.clk, pixel_freq);
+
+	writel(0x01, qphy->pcs + QSERDES_DP_PHY_CFG);
+	writel(0x05, qphy->pcs + QSERDES_DP_PHY_CFG);
+	writel(0x01, qphy->pcs + QSERDES_DP_PHY_CFG);
+	writel(0x09, qphy->pcs + QSERDES_DP_PHY_CFG);
+
+	writel(0x20, qphy->serdes + QSERDES_V4_COM_RESETSM_CNTRL);
+
+	if (readl_poll_timeout(qphy->serdes + QSERDES_V4_COM_C_READY_STATUS,
+			status,
+			((status & BIT(0)) > 0),
+			500,
+			10000))
+		return -ETIMEDOUT;
+
+	if (readl_poll_timeout(qphy->serdes + QSERDES_V4_COM_CMN_STATUS,
+			status,
+			((status & BIT(0)) > 0),
+			500,
+			10000))
+		return -ETIMEDOUT;
+
+	if (readl_poll_timeout(qphy->serdes + QSERDES_V4_COM_CMN_STATUS,
+			status,
+			((status & BIT(1)) > 0),
+			500,
+			10000))
+		return -ETIMEDOUT;
+
+	writel(0x19, qphy->pcs + QSERDES_DP_PHY_CFG);
+
+	if (readl_poll_timeout(qphy->pcs + QSERDES_V4_DP_PHY_STATUS,
+			status,
+			((status & BIT(0)) > 0),
+			500,
+			10000))
+		return -ETIMEDOUT;
+
+	if (readl_poll_timeout(qphy->pcs + QSERDES_V4_DP_PHY_STATUS,
+			status,
+			((status & BIT(1)) > 0),
+			500,
+			10000))
+		return -ETIMEDOUT;
+
+	/*
+	 * At least for 7nm DP PHY this has to be done after enabling link
+	 * clock.
+	 */
+
+	if (dp_opts->lanes == 1) {
+		bias0_en = reverse ? 0x3e : 0x15;
+		bias1_en = reverse ? 0x15 : 0x3e;
+		drvr0_en = reverse ? 0x13 : 0x10;
+		drvr1_en = reverse ? 0x10 : 0x13;
+	} else if (dp_opts->lanes == 2) {
+		bias0_en = reverse ? 0x3f : 0x15;
+		bias1_en = reverse ? 0x15 : 0x3f;
+		drvr0_en = 0x10;
+		drvr1_en = 0x10;
+	} else {
+		bias0_en = 0x3f;
+		bias1_en = 0x3f;
+		drvr0_en = 0x10;
+		drvr1_en = 0x10;
+	}
+
+	writel(drvr0_en, qphy->tx + QSERDES_V4_TX_HIGHZ_DRVR_EN);
+	writel(bias0_en, qphy->tx + QSERDES_V4_TX_TRANSCEIVER_BIAS_EN);
+	writel(drvr1_en, qphy->tx2 + QSERDES_V4_TX_HIGHZ_DRVR_EN);
+	writel(bias1_en, qphy->tx2 + QSERDES_V4_TX_TRANSCEIVER_BIAS_EN);
+
+	writel(0x18, qphy->pcs + QSERDES_DP_PHY_CFG);
+	udelay(2000);
+	writel(0x19, qphy->pcs + QSERDES_DP_PHY_CFG);
+
+	if (readl_poll_timeout(qphy->pcs + QSERDES_V4_DP_PHY_STATUS,
+			status,
+			((status & BIT(1)) > 0),
+			500,
+			10000))
+		return -ETIMEDOUT;
+
+	writel(0x0a, qphy->tx + QSERDES_V4_TX_TX_POL_INV);
+	writel(0x0a, qphy->tx2 + QSERDES_V4_TX_TX_POL_INV);
+
+	writel(0x27, qphy->tx + QSERDES_V4_TX_TX_DRV_LVL);
+	writel(0x27, qphy->tx2 + QSERDES_V4_TX_TX_DRV_LVL);
+
+	writel(0x20, qphy->tx + QSERDES_V4_TX_TX_EMP_POST1_LVL);
+	writel(0x20, qphy->tx2 + QSERDES_V4_TX_TX_EMP_POST1_LVL);
+
+	return 0;
+}
+
+/*
+ * We need to calibrate the aux setting here as many times
+ * as the caller tries
+ */
+static int qcom_qmp_v4_dp_phy_calibrate(struct qmp_phy *qphy)
+{
+	static const u8 cfg1_settings[] = { 0x20, 0x13, 0x23, 0x1d };
+	u8 val;
+
+	qphy->dp_aux_cfg++;
+	qphy->dp_aux_cfg %= ARRAY_SIZE(cfg1_settings);
+	val = cfg1_settings[qphy->dp_aux_cfg];
+
+	writel(val, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1);
+
+	return 0;
+}
+
 static int qcom_qmp_dp_phy_configure(struct phy *phy, union phy_configure_opts *opts)
 {
 	const struct phy_configure_opts_dp *dp_opts = &opts->dp;
@@ -4625,6 +4972,9 @@ static const struct of_device_id qcom_qmp_phy_of_match_table[] = {
 	}, {
 		.compatible = "qcom,sm8250-qmp-usb3-phy",
 		.data = &sm8250_usb3phy_cfg,
+	}, {
+		.compatible = "qcom,sm8250-qmp-usb3-dp-phy",
+		/* It's a combo phy */
 	}, {
 		.compatible = "qcom,sm8250-qmp-usb3-uni-phy",
 		.data = &sm8250_usb3_uniphy_cfg,
@@ -4659,6 +5009,10 @@ static const struct of_device_id qcom_qmp_combo_phy_of_match_table[] = {
 		.compatible = "qcom,sc7180-qmp-usb3-dp-phy",
 		.data = &sc7180_usb3dpphy_cfg,
 	},
+	{
+		.compatible = "qcom,sm8250-qmp-usb3-dp-phy",
+		.data = &sm8250_usb3dpphy_cfg,
+	},
 	{ }
 };
 
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.h b/drivers/phy/qualcomm/phy-qcom-qmp.h
index 981d8ee891c0..67bd2dd0d8c5 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.h
@@ -397,6 +397,7 @@
 #define QSERDES_V3_DP_PHY_STATUS			0x0c0
 
 /* Only for QMP V4 PHY - QSERDES COM registers */
+#define QSERDES_V4_COM_BG_TIMER				0x00c
 #define QSERDES_V4_COM_SSC_EN_CENTER			0x010
 #define QSERDES_V4_COM_SSC_PER1				0x01c
 #define QSERDES_V4_COM_SSC_PER2				0x020
@@ -404,7 +405,9 @@
 #define QSERDES_V4_COM_SSC_STEP_SIZE2_MODE0		0x028
 #define QSERDES_V4_COM_SSC_STEP_SIZE1_MODE1		0x030
 #define QSERDES_V4_COM_SSC_STEP_SIZE2_MODE1		0x034
+#define QSERDES_V4_COM_BIAS_EN_CLKBUFLR_EN		0x044
 #define QSERDES_V4_COM_CLK_ENABLE1			0x048
+#define QSERDES_V4_COM_SYS_CLK_CTRL			0x04c
 #define QSERDES_V4_COM_SYSCLK_BUF_ENABLE		0x050
 #define QSERDES_V4_COM_PLL_IVCO				0x058
 #define QSERDES_V4_COM_CMN_IPTRIM			0x060
@@ -415,6 +418,7 @@
 #define QSERDES_V4_COM_PLL_CCTRL_MODE0			0x084
 #define QSERDES_V4_COM_PLL_CCTRL_MODE1			0x088
 #define QSERDES_V4_COM_SYSCLK_EN_SEL			0x094
+#define QSERDES_V4_COM_RESETSM_CNTRL			0x09c
 #define QSERDES_V4_COM_LOCK_CMP_EN			0x0a4
 #define QSERDES_V4_COM_LOCK_CMP1_MODE0			0x0ac
 #define QSERDES_V4_COM_LOCK_CMP2_MODE0			0x0b0
@@ -428,16 +432,24 @@
 #define QSERDES_V4_COM_DIV_FRAC_START1_MODE1		0x0d8
 #define QSERDES_V4_COM_DIV_FRAC_START2_MODE1		0x0dc
 #define QSERDES_V4_COM_DIV_FRAC_START3_MODE1		0x0e0
+#define QSERDES_V4_COM_INTEGLOOP_GAIN0_MODE0		0x0ec
+#define QSERDES_V4_COM_INTEGLOOP_GAIN1_MODE0		0x0f0
+#define QSERDES_V4_COM_VCO_TUNE_CTRL			0x108
 #define QSERDES_V4_COM_VCO_TUNE_MAP			0x10c
 #define QSERDES_V4_COM_VCO_TUNE1_MODE0			0x110
 #define QSERDES_V4_COM_VCO_TUNE2_MODE0			0x114
 #define QSERDES_V4_COM_VCO_TUNE1_MODE1			0x118
 #define QSERDES_V4_COM_VCO_TUNE2_MODE1			0x11c
 #define QSERDES_V4_COM_VCO_TUNE_INITVAL2		0x124
+#define QSERDES_V4_COM_CMN_STATUS			0x140
 #define QSERDES_V4_COM_CLK_SELECT			0x154
 #define QSERDES_V4_COM_HSCLK_SEL			0x158
 #define QSERDES_V4_COM_HSCLK_HS_SWITCH_SEL		0x15c
+#define QSERDES_V4_COM_CORECLK_DIV_MODE0		0x168
 #define QSERDES_V4_COM_CORECLK_DIV_MODE1		0x16c
+#define QSERDES_V4_COM_CORE_CLK_EN			0x174
+#define QSERDES_V4_COM_C_READY_STATUS			0x178
+#define QSERDES_V4_COM_CMN_CONFIG			0x17c
 #define QSERDES_V4_COM_SVS_MODE_CLK_SEL			0x184
 #define QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE0	0x1ac
 #define QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE0	0x1b0
@@ -446,19 +458,32 @@
 #define QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE1	0x1b8
 
 /* Only for QMP V4 PHY - TX registers */
+#define QSERDES_V4_TX_CLKBUF_ENABLE			0x08
+#define QSERDES_V4_TX_TX_EMP_POST1_LVL			0x0c
+#define QSERDES_V4_TX_TX_DRV_LVL			0x14
+#define QSERDES_V4_TX_RESET_TSYNC_EN			0x1c
+#define QSERDES_V4_TX_PRE_STALL_LDO_BOOST_EN		0x20
+#define QSERDES_V4_TX_TX_BAND				0x24
+#define QSERDES_V4_TX_INTERFACE_SELECT			0x2c
 #define QSERDES_V4_TX_RES_CODE_LANE_TX			0x34
 #define QSERDES_V4_TX_RES_CODE_LANE_RX			0x38
 #define QSERDES_V4_TX_RES_CODE_LANE_OFFSET_TX 		0x3c
 #define QSERDES_V4_TX_RES_CODE_LANE_OFFSET_RX 		0x40
+#define QSERDES_V4_TX_TRANSCEIVER_BIAS_EN		0x54
+#define QSERDES_V4_TX_HIGHZ_DRVR_EN			0x58
+#define QSERDES_V4_TX_TX_POL_INV			0x5c
+#define QSERDES_V4_TX_PARRATE_REC_DETECT_IDLE_EN	0x60
 #define QSERDES_V4_TX_LANE_MODE_1			0x84
 #define QSERDES_V4_TX_LANE_MODE_2			0x88
 #define QSERDES_V4_TX_RCV_DETECT_LVL_2			0x9c
+#define QSERDES_V4_TX_TRAN_DRVR_EMP_EN			0xb8
+#define QSERDES_V4_TX_TX_INTERFACE_MODE			0xbc
 #define QSERDES_V4_TX_PWM_GEAR_1_DIVIDER_BAND0_1	0xd8
 #define QSERDES_V4_TX_PWM_GEAR_2_DIVIDER_BAND0_1	0xdC
 #define QSERDES_V4_TX_PWM_GEAR_3_DIVIDER_BAND0_1	0xe0
 #define QSERDES_V4_TX_PWM_GEAR_4_DIVIDER_BAND0_1	0xe4
-#define QSERDES_V4_TX_TRAN_DRVR_EMP_EN			0xb8
-#define QSERDES_V4_TX_PI_QEC_CTRL		0x104
+#define QSERDES_V4_TX_VMODE_CTRL1			0xe8
+#define QSERDES_V4_TX_PI_QEC_CTRL			0x104
 
 /* Only for QMP V4 PHY - RX registers */
 #define QSERDES_V4_RX_UCDR_FO_GAIN			0x008
@@ -515,6 +540,17 @@
 #define QSERDES_V4_RX_DCC_CTRL1				0x1bc
 #define QSERDES_V4_RX_VTH_CODE				0x1c4
 
+/* Only for QMP V4 PHY - DP PHY registers */
+#define QSERDES_V4_DP_PHY_CFG_1				0x014
+#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_MASK		0x054
+#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_CLEAR		0x058
+#define QSERDES_V4_DP_PHY_VCO_DIV			0x070
+#define QSERDES_V4_DP_PHY_TX0_TX1_LANE_CTL		0x078
+#define QSERDES_V4_DP_PHY_TX2_TX3_LANE_CTL		0x09c
+#define QSERDES_V4_DP_PHY_SPARE0			0x0c8
+#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_STATUS		0x0d8
+#define QSERDES_V4_DP_PHY_STATUS			0x0dc
+
 /* Only for QMP V4 PHY - UFS PCS registers */
 #define QPHY_V4_PCS_UFS_PHY_START				0x000
 #define QPHY_V4_PCS_UFS_POWER_DOWN_CONTROL			0x004
-- 
2.30.2

[PATCH v6 6/7] arm64: dts: qcom: sm8250: switch usb1 qmp phy to USB3+DP mode

[Dmitry Baryshkov]

USB1 QMP PHY is not just a USB3 PHY, but USB3+DP PHY. Change device tree
nodes accordingly.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 947e1accae3a..0f79e6885004 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -2097,12 +2097,11 @@ usb_2_hsphy: phy@88e4000 {
 		};
 
 		usb_1_qmpphy: phy@88e9000 {
-			compatible = "qcom,sm8250-qmp-usb3-phy";
+			compatible = "qcom,sm8250-qmp-usb3-dp-phy";
 			reg = <0 0x088e9000 0 0x200>,
-			      <0 0x088e8000 0 0x20>;
-			reg-names = "reg-base", "dp_com";
+			      <0 0x088e8000 0 0x40>,
+			      <0 0x088ea000 0 0x200>;
 			status = "disabled";
-			#clock-cells = <1>;
 			#address-cells = <2>;
 			#size-cells = <2>;
 			ranges;
@@ -2116,7 +2115,7 @@ usb_1_qmpphy: phy@88e9000 {
 				 <&gcc GCC_USB3_PHY_PRIM_BCR>;
 			reset-names = "phy", "common";
 
-			usb_1_ssphy: lanes@88e9200 {
+			usb_1_ssphy: usb3-phy@88e9200 {
 				reg = <0 0x088e9200 0 0x200>,
 				      <0 0x088e9400 0 0x200>,
 				      <0 0x088e9c00 0 0x400>,
@@ -2128,6 +2127,20 @@ usb_1_ssphy: lanes@88e9200 {
 				clock-names = "pipe0";
 				clock-output-names = "usb3_phy_pipe_clk_src";
 			};
+
+			dp_phy: dp-phy@88ea200 {
+				reg = <0 0x088ea200 0 0x200>,
+				      <0 0x088ea400 0 0x200>,
+				      <0 0x088eac00 0 0x400>,
+				      <0 0x088ea600 0 0x200>,
+				      <0 0x088ea800 0 0x200>,
+				      <0 0x088eaa00 0 0x100>;
+				#phy-cells = <0>;
+				#clock-cells = <1>;
+				clocks = <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
+				clock-names = "pipe0";
+				clock-output-names = "usb3_phy_pipe_clk_src";
+			};
 		};
 
 		usb_2_qmpphy: phy@88eb000 {
-- 
2.30.2

[PATCH v6 7/7] arm64: dts: qcom: use dp_phy to provide clocks to dispcc

[Dmitry Baryshkov]

Plug dp_phy-provided clocks to display clock controller.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 0f79e6885004..a2478bd3590a 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -2600,8 +2600,8 @@ dispcc: clock-controller@af00000 {
 				 <&dsi0_phy 1>,
 				 <&dsi1_phy 0>,
 				 <&dsi1_phy 1>,
-				 <0>,
-				 <0>,
+				 <&dp_phy 0>,
+				 <&dp_phy 1>,
 				 <0>,
 				 <0>,
 				 <0>,
@@ -2614,8 +2614,8 @@ dispcc: clock-controller@af00000 {
 				      "dsi0_phy_pll_out_dsiclk",
 				      "dsi1_phy_pll_out_byteclk",
 				      "dsi1_phy_pll_out_dsiclk",
-				      "dp_link_clk_divsel_ten",
-				      "dp_vco_divided_clk_src_mux",
+				      "dp_phy_pll_link_clk",
+				      "dp_phy_pll_vco_div_clk",
 				      "dptx1_phy_pll_link_clk",
 				      "dptx1_phy_pll_vco_div_clk",
 				      "dptx2_phy_pll_link_clk",
-- 
2.30.2

Re: [PATCH v6 0/7] phy: qcom-qmp: provide DP phy support for sm8250

[Vinod Koul]

On 31-03-21, 18:16, Dmitry Baryshkov wrote:
> Changes since v5:
>  - Rebase on top of phy-next
>  - Rework 'move DP functions to callbacks' patch to leave most of the
>    code in place, using function prototypes.

Applied 1 thru 5, thanks

Bjorn you can pick the dts bits.

-- 
~Vinod