summaryrefslogtreecommitdiff
path: root/drivers/phy/qualcomm
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/phy/qualcomm')
-rw-r--r--drivers/phy/qualcomm/phy-qcom-edp.c76
-rw-r--r--drivers/phy/qualcomm/phy-qcom-m31.c2
-rw-r--r--drivers/phy/qualcomm/phy-qcom-qmp-combo.c12
-rw-r--r--drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v5.h1
-rw-r--r--drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v6.h1
5 files changed, 68 insertions, 24 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
index 9818d994c68b..621d0453bf76 100644
--- a/drivers/phy/qualcomm/phy-qcom-edp.c
+++ b/drivers/phy/qualcomm/phy-qcom-edp.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/phy/phy.h>
+#include <linux/phy/phy-dp.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/reset.h>
@@ -69,19 +70,21 @@
#define TXn_TRAN_DRVR_EMP_EN 0x0078
-struct qcom_edp_cfg {
- bool is_dp;
-
- /* DP PHY swing and pre_emphasis tables */
+struct qcom_edp_swing_pre_emph_cfg {
const u8 (*swing_hbr_rbr)[4][4];
const u8 (*swing_hbr3_hbr2)[4][4];
const u8 (*pre_emphasis_hbr_rbr)[4][4];
const u8 (*pre_emphasis_hbr3_hbr2)[4][4];
};
+struct qcom_edp_phy_cfg {
+ bool is_edp;
+ const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg;
+};
+
struct qcom_edp {
struct device *dev;
- const struct qcom_edp_cfg *cfg;
+ const struct qcom_edp_phy_cfg *cfg;
struct phy *phy;
@@ -97,6 +100,8 @@ struct qcom_edp {
struct clk_bulk_data clks[2];
struct regulator_bulk_data supplies[2];
+
+ bool is_edp;
};
static const u8 dp_swing_hbr_rbr[4][4] = {
@@ -127,8 +132,7 @@ static const u8 dp_pre_emp_hbr2_hbr3[4][4] = {
{ 0x04, 0xff, 0xff, 0xff }
};
-static const struct qcom_edp_cfg dp_phy_cfg = {
- .is_dp = true,
+static const struct qcom_edp_swing_pre_emph_cfg dp_phy_swing_pre_emph_cfg = {
.swing_hbr_rbr = &dp_swing_hbr_rbr,
.swing_hbr3_hbr2 = &dp_swing_hbr2_hbr3,
.pre_emphasis_hbr_rbr = &dp_pre_emp_hbr_rbr,
@@ -163,18 +167,28 @@ static const u8 edp_pre_emp_hbr2_hbr3[4][4] = {
{ 0x00, 0xff, 0xff, 0xff }
};
-static const struct qcom_edp_cfg edp_phy_cfg = {
- .is_dp = false,
+static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = {
.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 const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = {
+};
+
+static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = {
+ .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
+};
+
+static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = {
+ .is_edp = true,
+ .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,
+};
+
static int qcom_edp_phy_init(struct phy *phy)
{
struct qcom_edp *edp = phy_get_drvdata(phy);
- const struct qcom_edp_cfg *cfg = edp->cfg;
int ret;
u8 cfg8;
@@ -201,7 +215,12 @@ static int qcom_edp_phy_init(struct phy *phy)
DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN,
edp->edp + DP_PHY_PD_CTL);
- if (cfg && cfg->is_dp)
+ /*
+ * TODO: Re-work the conditions around setting the cfg8 value
+ * when more information becomes available about why this is
+ * even needed.
+ */
+ if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp)
cfg8 = 0xb7;
else
cfg8 = 0x37;
@@ -235,7 +254,7 @@ out_disable_supplies:
static int qcom_edp_set_voltages(struct qcom_edp *edp, const struct phy_configure_opts_dp *dp_opts)
{
- const struct qcom_edp_cfg *cfg = edp->cfg;
+ const struct qcom_edp_swing_pre_emph_cfg *cfg = edp->cfg->swing_pre_emph_cfg;
unsigned int v_level = 0;
unsigned int p_level = 0;
u8 ldo_config;
@@ -246,6 +265,9 @@ static int qcom_edp_set_voltages(struct qcom_edp *edp, const struct phy_configur
if (!cfg)
return 0;
+ if (edp->is_edp)
+ cfg = &edp_phy_swing_pre_emph_cfg;
+
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]);
@@ -262,7 +284,7 @@ static int qcom_edp_set_voltages(struct qcom_edp *edp, const struct phy_configur
if (swing == 0xff || emph == 0xff)
return -EINVAL;
- ldo_config = (cfg && cfg->is_dp) ? 0x1 : 0x0;
+ ldo_config = edp->is_edp ? 0x0 : 0x1;
writel(ldo_config, edp->tx0 + TXn_LDO_CONFIG);
writel(swing, edp->tx0 + TXn_TX_DRV_LVL);
@@ -448,10 +470,9 @@ static int qcom_edp_set_vco_div(const struct qcom_edp *edp, unsigned long *pixel
static int qcom_edp_phy_power_on(struct phy *phy)
{
const struct qcom_edp *edp = phy_get_drvdata(phy);
- const struct qcom_edp_cfg *cfg = edp->cfg;
u32 bias0_en, drvr0_en, bias1_en, drvr1_en;
unsigned long pixel_freq;
- u8 ldo_config;
+ u8 ldo_config = 0x0;
int timeout;
int ret;
u32 val;
@@ -469,7 +490,8 @@ static int qcom_edp_phy_power_on(struct phy *phy)
return timeout;
- ldo_config = (cfg && cfg->is_dp) ? 0x1 : 0x0;
+ if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp)
+ ldo_config = 0x1;
writel(ldo_config, edp->tx0 + TXn_LDO_CONFIG);
writel(ldo_config, edp->tx1 + TXn_LDO_CONFIG);
@@ -590,6 +612,18 @@ static int qcom_edp_phy_power_off(struct phy *phy)
return 0;
}
+static int qcom_edp_phy_set_mode(struct phy *phy, enum phy_mode mode, int submode)
+{
+ struct qcom_edp *edp = phy_get_drvdata(phy);
+
+ if (mode != PHY_MODE_DP)
+ return -EINVAL;
+
+ edp->is_edp = submode == PHY_SUBMODE_EDP;
+
+ return 0;
+}
+
static int qcom_edp_phy_exit(struct phy *phy)
{
struct qcom_edp *edp = phy_get_drvdata(phy);
@@ -605,6 +639,7 @@ static const struct phy_ops qcom_edp_ops = {
.configure = qcom_edp_phy_configure,
.power_on = qcom_edp_phy_power_on,
.power_off = qcom_edp_phy_power_off,
+ .set_mode = qcom_edp_phy_set_mode,
.exit = qcom_edp_phy_exit,
.owner = THIS_MODULE,
};
@@ -782,6 +817,7 @@ static int qcom_edp_phy_probe(struct platform_device *pdev)
edp->dev = dev;
edp->cfg = of_device_get_match_data(&pdev->dev);
+ edp->is_edp = edp->cfg->is_edp;
edp->edp = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(edp->edp))
@@ -840,10 +876,10 @@ 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 },
+ { .compatible = "qcom,sc7280-edp-phy", .data = &sc7280_dp_phy_cfg, },
+ { .compatible = "qcom,sc8180x-edp-phy", .data = &sc7280_dp_phy_cfg, },
+ { .compatible = "qcom,sc8280xp-dp-phy", .data = &sc8280xp_dp_phy_cfg, },
+ { .compatible = "qcom,sc8280xp-edp-phy", .data = &sc8280xp_edp_phy_cfg, },
{ }
};
MODULE_DEVICE_TABLE(of, qcom_edp_phy_match_table);
diff --git a/drivers/phy/qualcomm/phy-qcom-m31.c b/drivers/phy/qualcomm/phy-qcom-m31.c
index 03fb0d4b75d7..20d4c020a83c 100644
--- a/drivers/phy/qualcomm/phy-qcom-m31.c
+++ b/drivers/phy/qualcomm/phy-qcom-m31.c
@@ -297,7 +297,7 @@ static int m31usb_phy_probe(struct platform_device *pdev)
return dev_err_probe(dev, PTR_ERR(qphy->phy),
"failed to create phy\n");
- qphy->vreg = devm_regulator_get(dev, "vdda-phy");
+ qphy->vreg = devm_regulator_get(dev, "vdd");
if (IS_ERR(qphy->vreg))
return dev_err_probe(dev, PTR_ERR(qphy->vreg),
"failed to get vreg\n");
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index 7d585a4bbbba..c21cdb8dbfe7 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -77,6 +77,7 @@ enum qphy_reg_layout {
QPHY_COM_BIAS_EN_CLKBUFLR_EN,
QPHY_DP_PHY_STATUS,
+ QPHY_DP_PHY_VCO_DIV,
QPHY_TX_TX_POL_INV,
QPHY_TX_TX_DRV_LVL,
@@ -102,6 +103,7 @@ static const unsigned int qmp_v3_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = {
[QPHY_COM_BIAS_EN_CLKBUFLR_EN] = QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN,
[QPHY_DP_PHY_STATUS] = QSERDES_V3_DP_PHY_STATUS,
+ [QPHY_DP_PHY_VCO_DIV] = QSERDES_V3_DP_PHY_VCO_DIV,
[QPHY_TX_TX_POL_INV] = QSERDES_V3_TX_TX_POL_INV,
[QPHY_TX_TX_DRV_LVL] = QSERDES_V3_TX_TX_DRV_LVL,
@@ -126,6 +128,7 @@ static const unsigned int qmp_v45_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = {
[QPHY_COM_BIAS_EN_CLKBUFLR_EN] = QSERDES_V4_COM_BIAS_EN_CLKBUFLR_EN,
[QPHY_DP_PHY_STATUS] = QSERDES_V4_DP_PHY_STATUS,
+ [QPHY_DP_PHY_VCO_DIV] = QSERDES_V4_DP_PHY_VCO_DIV,
[QPHY_TX_TX_POL_INV] = QSERDES_V4_TX_TX_POL_INV,
[QPHY_TX_TX_DRV_LVL] = QSERDES_V4_TX_TX_DRV_LVL,
@@ -150,6 +153,7 @@ static const unsigned int qmp_v5_5nm_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = {
[QPHY_COM_BIAS_EN_CLKBUFLR_EN] = QSERDES_V5_COM_BIAS_EN_CLKBUFLR_EN,
[QPHY_DP_PHY_STATUS] = QSERDES_V5_DP_PHY_STATUS,
+ [QPHY_DP_PHY_VCO_DIV] = QSERDES_V5_DP_PHY_VCO_DIV,
[QPHY_TX_TX_POL_INV] = QSERDES_V5_5NM_TX_TX_POL_INV,
[QPHY_TX_TX_DRV_LVL] = QSERDES_V5_5NM_TX_TX_DRV_LVL,
@@ -174,6 +178,7 @@ static const unsigned int qmp_v6_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = {
[QPHY_COM_BIAS_EN_CLKBUFLR_EN] = QSERDES_V6_COM_PLL_BIAS_EN_CLK_BUFLR_EN,
[QPHY_DP_PHY_STATUS] = QSERDES_V6_DP_PHY_STATUS,
+ [QPHY_DP_PHY_VCO_DIV] = QSERDES_V6_DP_PHY_VCO_DIV,
[QPHY_TX_TX_POL_INV] = QSERDES_V6_TX_TX_POL_INV,
[QPHY_TX_TX_DRV_LVL] = QSERDES_V6_TX_TX_DRV_LVL,
@@ -2150,9 +2155,9 @@ static bool qmp_combo_configure_dp_mode(struct qmp_combo *qmp)
writel(val, qmp->dp_dp_phy + QSERDES_DP_PHY_PD_CTL);
if (reverse)
- writel(0x4c, qmp->pcs + QSERDES_DP_PHY_MODE);
+ writel(0x4c, qmp->dp_dp_phy + QSERDES_DP_PHY_MODE);
else
- writel(0x5c, qmp->pcs + QSERDES_DP_PHY_MODE);
+ writel(0x5c, qmp->dp_dp_phy + QSERDES_DP_PHY_MODE);
return reverse;
}
@@ -2162,6 +2167,7 @@ static int qmp_combo_configure_dp_clocks(struct qmp_combo *qmp)
const struct phy_configure_opts_dp *dp_opts = &qmp->dp_opts;
u32 phy_vco_div;
unsigned long pixel_freq;
+ const struct qmp_phy_cfg *cfg = qmp->cfg;
switch (dp_opts->link_rate) {
case 1620:
@@ -2184,7 +2190,7 @@ static int qmp_combo_configure_dp_clocks(struct qmp_combo *qmp)
/* Other link rates aren't supported */
return -EINVAL;
}
- writel(phy_vco_div, qmp->dp_dp_phy + QSERDES_V4_DP_PHY_VCO_DIV);
+ writel(phy_vco_div, qmp->dp_dp_phy + cfg->regs[QPHY_DP_PHY_VCO_DIV]);
clk_set_rate(qmp->dp_link_hw.clk, dp_opts->link_rate * 100000);
clk_set_rate(qmp->dp_pixel_hw.clk, pixel_freq);
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v5.h b/drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v5.h
index f5cfacf9be96..181057421c11 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v5.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v5.h
@@ -7,6 +7,7 @@
#define QCOM_PHY_QMP_DP_PHY_V5_H_
/* Only for QMP V5 PHY - DP PHY registers */
+#define QSERDES_V5_DP_PHY_VCO_DIV 0x070
#define QSERDES_V5_DP_PHY_AUX_INTERRUPT_STATUS 0x0d8
#define QSERDES_V5_DP_PHY_STATUS 0x0dc
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v6.h b/drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v6.h
index 01a20d3be4b8..fa967a1af058 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v6.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-dp-phy-v6.h
@@ -7,6 +7,7 @@
#define QCOM_PHY_QMP_DP_PHY_V6_H_
/* Only for QMP V6 PHY - DP PHY registers */
+#define QSERDES_V6_DP_PHY_VCO_DIV 0x070
#define QSERDES_V6_DP_PHY_AUX_INTERRUPT_STATUS 0x0e0
#define QSERDES_V6_DP_PHY_STATUS 0x0e4
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-15 06:40:42 +0300