phy: qcom-qmp-pcie: add support for sm8350 platform

Add support for a single-lane and two-lane PCIe PHYs found on Qualcomm
SM8350 platform.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20221118233242.2904088-7-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

1 files changed, 119 insertions, 1 deletions

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index c5867cbd50cb..d255c4f2b20f 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1313,6 +1313,40 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V5_PCS_PCIE_ENDPOINT_REFCLK_DRIVE, 0xc1),
 };
 
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x1_pcie_tx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_PI_QEC_CTRL, 0x20),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_1, 0x75),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_4, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_TX, 0x1d),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_RX, 0x0c),
+};
+
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x1_pcie_rc_rx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH2, 0xbf),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH3, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_VGA_CAL_CNTRL2, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_PI_CONTROLS, 0xf0),
+};
+
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x2_pcie_rc_rx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH2, 0x7f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH3, 0x34),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_VGA_CAL_CNTRL2, 0x0f),
+};
+
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x2_pcie_tx_tbl[] = {
+	QMP_PHY_INIT_CFG_LANE(QSERDES_V5_TX_PI_QEC_CTRL, 0x02, 1),
+	QMP_PHY_INIT_CFG_LANE(QSERDES_V5_TX_PI_QEC_CTRL, 0x04, 2),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_1, 0xd5),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_4, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_TX, 0x1d),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_RX, 0x0c),
+};
+
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x2_pcie_rc_pcs_tbl[] = {
+	QMP_PHY_INIT_CFG(QPHY_V5_PCS_EQ_CONFIG2, 0x0f),
+};
+
 static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_BIAS_EN_CLKBUFLR_EN, 0x14),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_IVCO, 0x0f),
@@ -2021,6 +2055,80 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = {
 	.phy_status		= PHYSTATUS_4_20,
 };
 
+static const struct qmp_phy_cfg sm8350_qmp_gen3x1_pciephy_cfg = {
+	.lanes			= 1,
+
+	.offsets		= &qmp_pcie_offsets_v5,
+
+	.tbls = {
+		.serdes		= sm8450_qmp_gen3_pcie_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_serdes_tbl),
+		.tx		= sm8350_qmp_gen3x1_pcie_tx_tbl,
+		.tx_num		= ARRAY_SIZE(sm8350_qmp_gen3x1_pcie_tx_tbl),
+		.rx		= sm8450_qmp_gen3_pcie_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8450_qmp_gen3_pcie_rx_tbl),
+		.pcs		= sm8450_qmp_gen3_pcie_pcs_tbl,
+		.pcs_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_pcs_tbl),
+		.pcs_misc	= sm8450_qmp_gen3x1_pcie_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_pcs_misc_tbl),
+	},
+
+	.tbls_rc = &(const struct qmp_phy_cfg_tbls) {
+		.serdes		= sm8450_qmp_gen3x1_pcie_rc_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_rc_serdes_tbl),
+		.rx		= sm8350_qmp_gen3x1_pcie_rc_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8350_qmp_gen3x1_pcie_rc_rx_tbl),
+	},
+
+	.clk_list		= sc8280xp_pciephy_clk_l,
+	.num_clks		= ARRAY_SIZE(sc8280xp_pciephy_clk_l),
+	.reset_list		= sdm845_pciephy_reset_l,
+	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.regs			= sm8250_pcie_regs_layout,
+
+	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
+	.phy_status		= PHYSTATUS,
+};
+
+static const struct qmp_phy_cfg sm8350_qmp_gen3x2_pciephy_cfg = {
+	.lanes			= 2,
+
+	.offsets		= &qmp_pcie_offsets_v5,
+
+	.tbls = {
+		.serdes		= sm8450_qmp_gen3_pcie_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_serdes_tbl),
+		.tx		= sm8350_qmp_gen3x2_pcie_tx_tbl,
+		.tx_num		= ARRAY_SIZE(sm8350_qmp_gen3x2_pcie_tx_tbl),
+		.rx		= sm8450_qmp_gen3_pcie_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8450_qmp_gen3_pcie_rx_tbl),
+		.pcs		= sm8450_qmp_gen3_pcie_pcs_tbl,
+		.pcs_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_pcs_tbl),
+		.pcs_misc	= sc8280xp_qmp_gen3x2_pcie_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(sc8280xp_qmp_gen3x2_pcie_pcs_misc_tbl),
+	},
+
+	.tbls_rc = &(const struct qmp_phy_cfg_tbls) {
+		.rx		= sm8350_qmp_gen3x2_pcie_rc_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8350_qmp_gen3x2_pcie_rc_rx_tbl),
+		.pcs		= sm8350_qmp_gen3x2_pcie_rc_pcs_tbl,
+		.pcs_num	= ARRAY_SIZE(sm8350_qmp_gen3x2_pcie_rc_pcs_tbl),
+	},
+
+	.clk_list		= sc8280xp_pciephy_clk_l,
+	.num_clks		= ARRAY_SIZE(sc8280xp_pciephy_clk_l),
+	.reset_list		= sdm845_pciephy_reset_l,
+	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.regs			= sm8250_pcie_regs_layout,
+
+	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
+	.phy_status		= PHYSTATUS,
+};
+
 static const struct qmp_phy_cfg sm8450_qmp_gen3x1_pciephy_cfg = {
 	.lanes			= 1,
 
@@ -2613,7 +2721,11 @@ static int qmp_pcie_parse_dt(struct qmp_pcie *qmp)
 	qmp->pipe_clks[0].id = "pipe";
 	qmp->pipe_clks[1].id = "pipediv2";
 
-	ret = devm_clk_bulk_get(dev, qmp->num_pipe_clks, qmp->pipe_clks);
+	ret = devm_clk_bulk_get(dev, 1, qmp->pipe_clks);
+	if (ret)
+		return ret;
+
+	ret = devm_clk_bulk_get_optional(dev, qmp->num_pipe_clks - 1, qmp->pipe_clks + 1);
 	if (ret)
 		return ret;
 
@@ -2734,6 +2846,12 @@ static const struct of_device_id qmp_pcie_of_match_table[] = {
 		.compatible = "qcom,sm8250-qmp-modem-pcie-phy",
 		.data = &sm8250_qmp_gen3x2_pciephy_cfg,
 	}, {
+		.compatible = "qcom,sm8350-qmp-gen3x1-pcie-phy",
+		.data = &sm8350_qmp_gen3x1_pciephy_cfg,
+	}, {
+		.compatible = "qcom,sm8350-qmp-gen3x2-pcie-phy",
+		.data = &sm8350_qmp_gen3x2_pciephy_cfg,
+	}, {
 		.compatible = "qcom,sm8450-qmp-gen3x1-pcie-phy",
 		.data = &sm8450_qmp_gen3x1_pciephy_cfg,
 	}, {