linux-kernel - [PATCH 5/5] phy: qcom: edp: Add SC8280XP eDP and DP PHYs

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Date:   Tue,  9 Aug 2022 21:07:45 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/5] phy: qcom: edp: Add SC8280XP eDP and DP PHYs

The Qualcomm SC8280XP platform has a number of eDP and DP PHY instances,
add support for these.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 drivers/phy/qualcomm/phy-qcom-edp.c | 74 +++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
index 301ac422d2fe..de696108cf6e 100644
--- a/drivers/phy/qualcomm/phy-qcom-edp.c
+++ b/drivers/phy/qualcomm/phy-qcom-edp.c
@@ -100,6 +100,78 @@ struct qcom_edp {
 	struct regulator_bulk_data supplies[2];
 };
 
+static const u8 dp_swing_hbr_rbr[4][4] = {
+	{ 0x08, 0x0f, 0x16, 0x1f },
+	{ 0x11, 0x1e, 0x1f, 0xff },
+	{ 0x16, 0x1f, 0xff, 0xff },
+	{ 0x1f, 0xff, 0xff, 0xff }
+};
+
+static const u8 dp_pre_emp_hbr_rbr[4][4] = {
+	{ 0x00, 0x0d, 0x14, 0x1a },
+	{ 0x00, 0x0e, 0x15, 0xff },
+	{ 0x00, 0x0e, 0xff, 0xff },
+	{ 0x03, 0xff, 0xff, 0xff }
+};
+
+static const u8 dp_swing_hbr2_hbr3[4][4] = {
+	{ 0x02, 0x12, 0x16, 0x1a },
+	{ 0x09, 0x19, 0x1f, 0xff },
+	{ 0x10, 0x1f, 0xff, 0xff },
+	{ 0x1f, 0xff, 0xff, 0xff }
+};
+
+static const u8 dp_pre_emp_hbr2_hbr3[4][4] = {
+	{ 0x00, 0x0c, 0x15, 0x1b },
+	{ 0x02, 0x0e, 0x16, 0xff },
+	{ 0x02, 0x11, 0xff, 0xff },
+	{ 0x04, 0xff, 0xff, 0xff }
+};
+
+static const struct qcom_edp_cfg dp_phy_cfg = {
+	.is_dp = true,
+	.swing_hbr_rbr = &dp_swing_hbr_rbr,
+	.swing_hbr3_hbr2 = &dp_swing_hbr2_hbr3,
+	.pre_emphasis_hbr_rbr = &dp_pre_emp_hbr_rbr,
+	.pre_emphasis_hbr3_hbr2 = &dp_pre_emp_hbr2_hbr3,
+};
+
+static const u8 edp_swing_hbr_rbr[4][4] = {
+	{ 0x07, 0x0f, 0x16, 0x1f },
+	{ 0x0d, 0x16, 0x1e, 0xff },
+	{ 0x11, 0x1b, 0xff, 0xff },
+	{ 0x16, 0xff, 0xff, 0xff }
+};
+
+static const u8 edp_pre_emp_hbr_rbr[4][4] = {
+	{ 0x05, 0x12, 0x17, 0x1d },
+	{ 0x05, 0x11, 0x18, 0xff },
+	{ 0x06, 0x11, 0xff, 0xff },
+	{ 0x00, 0xff, 0xff, 0xff }
+};
+
+static const u8 edp_swing_hbr2_hbr3[4][4] = {
+	{ 0x0b, 0x11, 0x17, 0x1c },
+	{ 0x10, 0x19, 0x1f, 0xff },
+	{ 0x19, 0x1f, 0xff, 0xff },
+	{ 0x1f, 0xff, 0xff, 0xff }
+};
+
+static const u8 edp_pre_emp_hbr2_hbr3[4][4] = {
+	{ 0x08, 0x11, 0x17, 0x1b },
+	{ 0x00, 0x0c, 0x13, 0xff },
+	{ 0x05, 0x10, 0xff, 0xff },
+	{ 0x00, 0xff, 0xff, 0xff }
+};
+
+static const struct qcom_edp_cfg edp_phy_cfg = {
+	.is_dp = false,
+	.swing_hbr_rbr = &edp_swing_hbr_rbr,
+	.swing_hbr3_hbr2 = &edp_swing_hbr2_hbr3,
+	.pre_emphasis_hbr_rbr = &edp_pre_emp_hbr_rbr,
+	.pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3,
+};
+
 static int qcom_edp_phy_init(struct phy *phy)
 {
 	struct qcom_edp *edp = phy_get_drvdata(phy);
@@ -767,6 +839,8 @@ static int qcom_edp_phy_probe(struct platform_device *pdev)
 static const struct of_device_id qcom_edp_phy_match_table[] = {
 	{ .compatible = "qcom,sc7280-edp-phy" },
 	{ .compatible = "qcom,sc8180x-edp-phy" },
+	{ .compatible = "qcom,sc8280xp-dp-phy", .data = &dp_phy_cfg },
+	{ .compatible = "qcom,sc8280xp-edp-phy", .data = &edp_phy_cfg },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, qcom_edp_phy_match_table);
-- 
2.35.1