linux-kernel - [PATCH/RFC 6/8] phy: qcom-qmp: Add support for sc7180 DP phy

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Message-Id: <20200611091919.108018-7-swboyd@chromium.org>
Date:   Thu, 11 Jun 2020 02:19:17 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Jeykumar Sankaran <jsanka@...eaurora.org>,
        Chandan Uddaraju <chandanu@...eaurora.org>,
        Vara Reddy <varar@...eaurora.org>,
        Tanmay Shah <tanmay@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Manu Gautam <mgautam@...eaurora.org>,
        Sandeep Maheswaram <sanm@...eaurora.org>,
        Douglas Anderson <dianders@...omium.org>,
        Sean Paul <seanpaul@...omium.org>
Subject: [PATCH/RFC 6/8] phy: qcom-qmp: Add support for sc7180 DP phy

Add the necessary compatible strings and phy data for the sc7180 USB3+DP
combo phy.

Link: https://lore.kernel.org/r/20200609034623.10844-1-tanmay@codeaurora.org
Cc: Jeykumar Sankaran <jsanka@...eaurora.org>
Cc: Chandan Uddaraju <chandanu@...eaurora.org>
Cc: Vara Reddy <varar@...eaurora.org>
Cc: Tanmay Shah <tanmay@...eaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
Cc: Manu Gautam <mgautam@...eaurora.org>
Cc: Sandeep Maheswaram <sanm@...eaurora.org>
Cc: Douglas Anderson <dianders@...omium.org>
Cc: Sean Paul <seanpaul@...omium.org>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c | 47 +++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 290233becd58..f6841716d21a 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -961,6 +961,24 @@ static const struct qmp_phy_init_tbl qmp_v3_dp_serdes_tbl_hbr3[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE0, 0x06),
 };
 
+static const struct qmp_phy_init_tbl qmp_v3_dp_tx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_TRANSCEIVER_BIAS_EN, 0x1a),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_VMODE_CTRL1, 0x40),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_PRE_STALL_LDO_BOOST_EN, 0x30),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_INTERFACE_SELECT, 0x3d),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_CLKBUF_ENABLE, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_RESET_TSYNC_EN, 0x03),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_TRAN_DRVR_EMP_EN, 0x03),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_PARRATE_REC_DETECT_IDLE_EN, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_TX_INTERFACE_MODE, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_TX_BAND, 0x4),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_TX_POL_INV, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_TX_DRV_LVL, 0x38),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_TX_EMP_POST1_LVL, 0x20),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_RES_CODE_LANE_OFFSET_TX, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_RES_CODE_LANE_OFFSET_RX, 0x07),
+};
+
 static const struct qmp_phy_init_tbl qmp_v3_usb3_rx_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN, 0x0b),
 	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0f),
@@ -1842,6 +1860,28 @@ static const struct qmp_phy_cfg sc7180_usb3phy_cfg = {
 	.is_dual_lane_phy	= true,
 };
 
+static const struct qmp_phy_cfg sc7180_dpphy_cfg = {
+	.type			= PHY_TYPE_DP,
+	.nlanes			= 1,
+
+	.tx_tbl			= qmp_v3_dp_tx_tbl,
+	.tx_tbl_num		= ARRAY_SIZE(qmp_v3_dp_tx_tbl),
+	.clk_list		= qmp_v3_phy_clk_l,
+	.num_clks		= ARRAY_SIZE(qmp_v3_phy_clk_l),
+	.reset_list		= sc7180_usb3phy_reset_l,
+	.num_resets		= ARRAY_SIZE(sc7180_usb3phy_reset_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+
+	.has_phy_dp_com_ctrl	= true,
+	.is_dual_lane_phy	= true,
+};
+
+static const struct qmp_phy_combo_cfg sc7180_usb3dpphy_cfg = {
+	.usb_cfg		= &sc7180_usb3phy_cfg,
+	.dp_cfg			= &sc7180_dpphy_cfg,
+};
+
 static const struct qmp_phy_cfg qmp_v3_usb3_uniphy_cfg = {
 	.type			= PHY_TYPE_USB3,
 	.nlanes			= 1,
@@ -3247,6 +3287,9 @@ static const struct of_device_id qcom_qmp_phy_of_match_table[] = {
 	}, {
 		.compatible = "qcom,sc7180-qmp-usb3-phy",
 		.data = &sc7180_usb3phy_cfg,
+	}, {
+		.compatible = "qcom,sc7180-qmp-usb3-dp-phy",
+		/* It's a combo phy */
 	}, {
 		.compatible = "qcom,sdm845-qhp-pcie-phy",
 		.data = &sdm845_qhp_pciephy_cfg,
@@ -3274,6 +3317,10 @@ static const struct of_device_id qcom_qmp_phy_of_match_table[] = {
 MODULE_DEVICE_TABLE(of, qcom_qmp_phy_of_match_table);
 
 static const struct of_device_id qcom_qmp_combo_phy_of_match_table[] = {
+	{
+		.compatible = "qcom,sc7180-qmp-usb3-dp-phy",
+		.data = &sc7180_usb3dpphy_cfg,
+	},
 	{ }
 };
 
-- 
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