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Message-Id: <20210318141144.2147610-3-dmitry.baryshkov@linaro.org>
Date: Thu, 18 Mar 2021 17:11:40 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...com>,
Rob Herring <robh+dt@...nel.org>
Cc: Manu Gautam <mgautam@...eaurora.org>,
Stephen Boyd <sboyd@...nel.org>,
Jonathan Marek <jonathan@...ek.ca>,
linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH v2 2/6] phy: qcom-qmp: move DP functions to callbacks
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@...aro.org>
---
drivers/phy/qualcomm/phy-qcom-qmp.c | 438 +++++++++++++++-------------
1 file changed, 231 insertions(+), 207 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 9cdebe7f26cb..4150096fd350 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 +2431,216 @@ struct qcom_qmp {
struct reset_control *ufs_reset;
};
+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);
+
+ /* 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_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);
+
+ writel(QSERDES_V3_COM_BIAS_EN |
+ QSERDES_V3_COM_BIAS_EN_MUX | QSERDES_V3_COM_CLKBUF_R_EN |
+ QSERDES_V3_COM_CLKBUF_L_EN | QSERDES_V3_COM_EN_SYSCLK_TX_SEL |
+ 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);
+ 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_V3_DP_PHY_AUX_INTERRUPT_MASK);
+}
+
+static const u8 qmp_dp_v3_pre_emphasis_hbr_rbr[4][4] = {
+ { 0x00, 0x0c, 0x14, 0x19 },
+ { 0x00, 0x0b, 0x12, 0xff },
+ { 0x00, 0x0b, 0xff, 0xff },
+ { 0x04, 0xff, 0xff, 0xff }
+};
+
+static const u8 qmp_dp_v3_voltage_swing_hbr_rbr[4][4] = {
+ { 0x08, 0x0f, 0x16, 0x1f },
+ { 0x11, 0x1e, 0x1f, 0xff },
+ { 0x19, 0x1f, 0xff, 0xff },
+ { 0x1f, 0xff, 0xff, 0xff }
+};
+
+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;
+ u32 bias_en, drvr_en;
+ u8 voltage_swing_cfg, pre_emphasis_cfg;
+ int i;
+
+ for (i = 0; i < dp_opts->lanes; i++) {
+ v_level = max(v_level, dp_opts->voltage[i]);
+ 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;
+ }
+
+ 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];
+
+ /* TODO: Move check to config check */
+ if (voltage_swing_cfg == 0xFF && pre_emphasis_cfg == 0xFF)
+ return;
+
+ /* 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(drvr_en, qphy->tx + QSERDES_V3_TX_HIGHZ_DRVR_EN);
+ writel(bias_en, qphy->tx + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN);
+ writel(drvr_en, qphy->tx2 + QSERDES_V3_TX_HIGHZ_DRVR_EN);
+ writel(bias_en, qphy->tx2 + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN);
+}
+
+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 val, phy_vco_div, status;
+ unsigned long pixel_freq;
+
+ 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;
+
+ /*
+ * TODO: Assume orientation is CC1 for now and two lanes, need to
+ * use type-c connector to understand orientation and lanes.
+ *
+ * Otherwise val changes to be like below if this code understood
+ * the orientation of the type-c cable.
+ *
+ * if (lane_cnt == 4 || orientation == ORIENTATION_CC2)
+ * val |= DP_PHY_PD_CTL_LANE_0_1_PWRDN;
+ * if (lane_cnt == 4 || orientation == ORIENTATION_CC1)
+ * val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN;
+ * if (orientation == ORIENTATION_CC2)
+ * 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(0x5c, qphy->pcs + QSERDES_V3_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);
+
+ 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_V3_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(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(0x20, qphy->serdes + QSERDES_V3_COM_RESETSM_CNTRL);
+
+ if (readl_poll_timeout(qphy->serdes + QSERDES_V3_COM_C_READY_STATUS,
+ status,
+ ((status & BIT(0)) > 0),
+ 500,
+ 10000))
+ return -ETIMEDOUT;
+
+ writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
+
+ if (readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS,
+ status,
+ ((status & BIT(1)) > 0),
+ 500,
+ 10000))
+ return -ETIMEDOUT;
+
+ writel(0x18, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
+ udelay(2000);
+ writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
+
+ return readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS,
+ status,
+ ((status & BIT(1)) > 0),
+ 500,
+ 10000);
+}
+
+/*
+ * We need to calibrate the aux setting here as many times
+ * as the caller tries
+ */
+static int qcom_qmp_v3_dp_phy_calibrate(struct qmp_phy *qphy)
+{
+ static const u8 cfg1_settings[] = { 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_V3_DP_PHY_AUX_CFG1);
+
+ return 0;
+}
+
static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val)
{
u32 reg;
@@ -2871,6 +3089,11 @@ 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 = {
@@ -3332,227 +3555,28 @@ 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)
-{
- 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);
-
- /* 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_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);
-
- writel(QSERDES_V3_COM_BIAS_EN |
- QSERDES_V3_COM_BIAS_EN_MUX | QSERDES_V3_COM_CLKBUF_R_EN |
- QSERDES_V3_COM_CLKBUF_L_EN | QSERDES_V3_COM_EN_SYSCLK_TX_SEL |
- 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);
- 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_V3_DP_PHY_AUX_INTERRUPT_MASK);
-}
-
-static const u8 qmp_dp_v3_pre_emphasis_hbr_rbr[4][4] = {
- { 0x00, 0x0c, 0x14, 0x19 },
- { 0x00, 0x0b, 0x12, 0xff },
- { 0x00, 0x0b, 0xff, 0xff },
- { 0x04, 0xff, 0xff, 0xff }
-};
-
-static const u8 qmp_dp_v3_voltage_swing_hbr_rbr[4][4] = {
- { 0x08, 0x0f, 0x16, 0x1f },
- { 0x11, 0x1e, 0x1f, 0xff },
- { 0x19, 0x1f, 0xff, 0xff },
- { 0x1f, 0xff, 0xff, 0xff }
-};
-
-static void qcom_qmp_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;
- u32 bias_en, drvr_en;
- u8 voltage_swing_cfg, pre_emphasis_cfg;
- int i;
-
- for (i = 0; i < dp_opts->lanes; i++) {
- v_level = max(v_level, dp_opts->voltage[i]);
- 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;
- }
-
- 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];
-
- /* TODO: Move check to config check */
- if (voltage_swing_cfg == 0xFF && pre_emphasis_cfg == 0xFF)
- return;
-
- /* 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(drvr_en, qphy->tx + QSERDES_V3_TX_HIGHZ_DRVR_EN);
- writel(bias_en, qphy->tx + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN);
- writel(drvr_en, qphy->tx2 + QSERDES_V3_TX_HIGHZ_DRVR_EN);
- 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);
+ const struct qmp_phy_cfg *cfg = qphy->cfg;
memcpy(&qphy->dp_opts, dp_opts, sizeof(*dp_opts));
if (qphy->dp_opts.set_voltages) {
- qcom_qmp_phy_configure_dp_tx(qphy);
+ cfg->configure_dp_tx(qphy);
qphy->dp_opts.set_voltages = 0;
}
return 0;
}
-static int qcom_qmp_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 val, phy_vco_div, status;
- unsigned long pixel_freq;
-
- 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;
-
- /*
- * TODO: Assume orientation is CC1 for now and two lanes, need to
- * use type-c connector to understand orientation and lanes.
- *
- * Otherwise val changes to be like below if this code understood
- * the orientation of the type-c cable.
- *
- * if (lane_cnt == 4 || orientation == ORIENTATION_CC2)
- * val |= DP_PHY_PD_CTL_LANE_0_1_PWRDN;
- * if (lane_cnt == 4 || orientation == ORIENTATION_CC1)
- * val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN;
- * if (orientation == ORIENTATION_CC2)
- * 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(0x5c, qphy->pcs + QSERDES_V3_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);
-
- 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_V3_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(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(0x20, qphy->serdes + QSERDES_V3_COM_RESETSM_CNTRL);
-
- if (readl_poll_timeout(qphy->serdes + QSERDES_V3_COM_C_READY_STATUS,
- status,
- ((status & BIT(0)) > 0),
- 500,
- 10000))
- return -ETIMEDOUT;
-
- writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
-
- if (readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS,
- status,
- ((status & BIT(1)) > 0),
- 500,
- 10000))
- return -ETIMEDOUT;
-
- writel(0x18, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
- udelay(2000);
- writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG);
-
- return readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS,
- status,
- ((status & BIT(1)) > 0),
- 500,
- 10000);
-}
-
-/*
- * 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)
{
struct qmp_phy *qphy = phy_get_drvdata(phy);
- static const u8 cfg1_settings[] = { 0x13, 0x23, 0x1d };
- u8 val;
-
- qphy->dp_aux_cfg++;
- qphy->dp_aux_cfg %= ARRAY_SIZE(cfg1_settings);
- val = cfg1_settings[qphy->dp_aux_cfg];
+ const struct qmp_phy_cfg *cfg = qphy->cfg;
- writel(val, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1);
+ if (cfg->calibrate_dp_phy)
+ return cfg->calibrate_dp_phy(qphy);
return 0;
}
@@ -3729,7 +3753,7 @@ 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;
}
@@ -3783,7 +3807,7 @@ 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);
@@ -3802,7 +3826,7 @@ 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
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