phy: qcom: qmp-pcie: Add Gen4 4-lanes mode for X1E80100

The sixth PCIe controller on X1E80100 can be used in either
4-lanes mode or 2-lanes mode. Add the configuration and compatible
for the 4-lane mode.

Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240823-x1e80100-phy-add-gen4x4-v3-2-b7765631ca01@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: abelvesa

drivers/phy/qualcomm/phy-qcom-qmp-pcie.c

@@ -1242,6 +1242,10 @@ static const struct qmp_phy_init_tbl x1e80100_qmp_gen4x2_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_VCO_DC_LEVEL_CTRL, 0x0f),
 };
 
+static const struct qmp_phy_init_tbl x1e80100_qmp_gen4x4_pcie_serdes_4ln_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_BIAS_EN_CLK_BUFLR_EN, 0x1c),
+};
+
 static const struct qmp_phy_init_tbl x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V6_LN_SHRD_RXCLK_DIV2_CTRL, 0x01),
 	QMP_PHY_INIT_CFG(QSERDES_V6_LN_SHRD_DFE_DAC_ENABLE1, 0x88),
@@ -3645,6 +3649,41 @@ static const struct qmp_phy_cfg x1e80100_qmp_gen4x2_pciephy_cfg = {
 		.ln_shrd		= x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl,
 		.ln_shrd_num		= ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl),
 	},
+
+	.reset_list		= sdm845_pciephy_reset_l,
+	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
+	.vreg_list		= sm8550_qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(sm8550_qmp_phy_vreg_l),
+	.regs			= pciephy_v6_regs_layout,
+
+	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
+	.phy_status		= PHYSTATUS_4_20,
+	.has_nocsr_reset	= true,
+};
+
+static const struct qmp_phy_cfg x1e80100_qmp_gen4x4_pciephy_cfg = {
+	.lanes = 4,
+
+	.offsets		= &qmp_pcie_offsets_v6_20,
+
+	.tbls = {
+		.serdes			= x1e80100_qmp_gen4x2_pcie_serdes_tbl,
+		.serdes_num		= ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_serdes_tbl),
+		.tx			= x1e80100_qmp_gen4x2_pcie_tx_tbl,
+		.tx_num			= ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_tx_tbl),
+		.rx			= x1e80100_qmp_gen4x2_pcie_rx_tbl,
+		.rx_num			= ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_rx_tbl),
+		.pcs			= x1e80100_qmp_gen4x2_pcie_pcs_tbl,
+		.pcs_num		= ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_pcs_tbl),
+		.pcs_misc		= x1e80100_qmp_gen4x2_pcie_pcs_misc_tbl,
+		.pcs_misc_num		= ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_pcs_misc_tbl),
+		.ln_shrd		= x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl,
+		.ln_shrd_num		= ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl),
+	},
+
+	.serdes_4ln_tbl		= x1e80100_qmp_gen4x4_pcie_serdes_4ln_tbl,
+	.serdes_4ln_num		= ARRAY_SIZE(x1e80100_qmp_gen4x4_pcie_serdes_4ln_tbl),
+
 	.reset_list		= sdm845_pciephy_reset_l,
 	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
 	.vreg_list		= sm8550_qmp_phy_vreg_l,
@@ -4415,6 +4454,9 @@ static const struct of_device_id qmp_pcie_of_match_table[] = {
 	}, {
 		.compatible = "qcom,x1e80100-qmp-gen4x2-pcie-phy",
 		.data = &x1e80100_qmp_gen4x2_pciephy_cfg,
+	}, {
+		.compatible = "qcom,x1e80100-qmp-gen4x4-pcie-phy",
+		.data = &x1e80100_qmp_gen4x4_pciephy_cfg,
 	},
 	{ },
 };