Re: [PATCH 17/22] phy: qcom-qmp-combo: merge USB and DP configurations

From: Dmitry Baryshkov
Date: Sat Nov 12 2022 - 02:43:22 EST

On 11/11/2022 11:56, Johan Hovold wrote:
It does not really make any sense to keep separate configuration
structures for the USB and DP parts of the same PHY so merge them.

Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 182 +++++++---------------
1 file changed, 57 insertions(+), 125 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index b27d1821116c..249912b75964 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -798,10 +798,7 @@ static const u8 qmp_dp_v5_voltage_swing_hbr_rbr[4][4] = {
struct qmp_phy;
-/* struct qmp_phy_cfg - per-PHY initialization config */
struct qmp_phy_cfg {
- /* phy-type - PCIE/UFS/USB */
- unsigned int type;
int lanes;

int lanes doesn't really make sense here in my opinion. It should be usb_lanes and dp_lanes.

/* Init sequence for PHY blocks - serdes, tx, rx, pcs */
@@ -864,11 +861,6 @@ struct qmp_phy_cfg {
};
-struct qmp_phy_combo_cfg {
- const struct qmp_phy_cfg *usb_cfg;
- const struct qmp_phy_cfg *dp_cfg;
-};
-
/**
* struct qmp_phy - per-lane phy descriptor
*
@@ -1008,8 +1000,7 @@ static const char * const sc7180_usb3phy_reset_l[] = {
"phy",
};
-static const struct qmp_phy_cfg sc7180_usb3phy_cfg = {
- .type = PHY_TYPE_USB3,
+static const struct qmp_phy_cfg sc7180_usb3dpphy_cfg = {
.lanes = 2,
.serdes_tbl = qmp_v3_usb3_serdes_tbl,
@@ -1020,20 +1011,6 @@ static const struct qmp_phy_cfg sc7180_usb3phy_cfg = {
.rx_tbl_num = ARRAY_SIZE(qmp_v3_usb3_rx_tbl),
.pcs_tbl = qmp_v3_usb3_pcs_tbl,
.pcs_tbl_num = ARRAY_SIZE(qmp_v3_usb3_pcs_tbl),
- .clk_list = qmp_v3_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v3_phy_clk_l),
- .reset_list = sc7180_usb3phy_reset_l,
- .num_resets = ARRAY_SIZE(sc7180_usb3phy_reset_l),
- .vreg_list = qmp_phy_vreg_l,
- .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
- .regs = qmp_v3_usb3phy_regs_layout,
-
- .has_pwrdn_delay = true,
-};
-
-static const struct qmp_phy_cfg sc7180_dpphy_cfg = {
- .type = PHY_TYPE_DP,
- .lanes = 2,
.dp_serdes_tbl = qmp_v3_dp_serdes_tbl,
.dp_serdes_tbl_num = ARRAY_SIZE(qmp_v3_dp_serdes_tbl),
@@ -1058,15 +1035,19 @@ static const struct qmp_phy_cfg sc7180_dpphy_cfg = {
.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 = {
- .usb_cfg = &sc7180_usb3phy_cfg,
- .dp_cfg = &sc7180_dpphy_cfg,
+ .clk_list = qmp_v3_phy_clk_l,
+ .num_clks = ARRAY_SIZE(qmp_v3_phy_clk_l),
+ .reset_list = sc7180_usb3phy_reset_l,
+ .num_resets = ARRAY_SIZE(sc7180_usb3phy_reset_l),
+ .vreg_list = qmp_phy_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+ .regs = qmp_v3_usb3phy_regs_layout,
+
+ .has_pwrdn_delay = true,
};
-static const struct qmp_phy_cfg sdm845_usb3phy_cfg = {
- .type = PHY_TYPE_USB3,
+static const struct qmp_phy_cfg sdm845_usb3dpphy_cfg = {
.lanes = 2,
.serdes_tbl = qmp_v3_usb3_serdes_tbl,
@@ -1077,25 +1058,11 @@ static const struct qmp_phy_cfg sdm845_usb3phy_cfg = {
.rx_tbl_num = ARRAY_SIZE(qmp_v3_usb3_rx_tbl),
.pcs_tbl = qmp_v3_usb3_pcs_tbl,
.pcs_tbl_num = ARRAY_SIZE(qmp_v3_usb3_pcs_tbl),
- .clk_list = qmp_v3_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v3_phy_clk_l),
- .reset_list = msm8996_usb3phy_reset_l,
- .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
- .vreg_list = qmp_phy_vreg_l,
- .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
- .regs = qmp_v3_usb3phy_regs_layout,
-
- .has_pwrdn_delay = true,
-};
-static const struct qmp_phy_cfg sdm845_dpphy_cfg = {
- .type = PHY_TYPE_DP,
- .lanes = 2,
-
- .serdes_tbl = qmp_v3_dp_serdes_tbl,
- .serdes_tbl_num = ARRAY_SIZE(qmp_v3_dp_serdes_tbl),
- .tx_tbl = qmp_v3_dp_tx_tbl,
- .tx_tbl_num = ARRAY_SIZE(qmp_v3_dp_tx_tbl),
+ .dp_serdes_tbl = qmp_v3_dp_serdes_tbl,
+ .dp_serdes_tbl_num = ARRAY_SIZE(qmp_v3_dp_serdes_tbl),
+ .dp_tx_tbl = qmp_v3_dp_tx_tbl,
+ .dp_tx_tbl_num = ARRAY_SIZE(qmp_v3_dp_tx_tbl),
.serdes_tbl_rbr = qmp_v3_dp_serdes_tbl_rbr,
.serdes_tbl_rbr_num = ARRAY_SIZE(qmp_v3_dp_serdes_tbl_rbr),
@@ -1115,15 +1082,18 @@ static const struct qmp_phy_cfg sdm845_dpphy_cfg = {
.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 sdm845_usb3dpphy_cfg = {
- .usb_cfg = &sdm845_usb3phy_cfg,
- .dp_cfg = &sdm845_dpphy_cfg,
-};
+ .clk_list = qmp_v3_phy_clk_l,
+ .num_clks = ARRAY_SIZE(qmp_v3_phy_clk_l),
+ .reset_list = msm8996_usb3phy_reset_l,
+ .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
+ .vreg_list = qmp_phy_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+ .regs = qmp_v3_usb3phy_regs_layout,
-static const struct qmp_phy_cfg sm8150_usb3phy_cfg = {
- .type = PHY_TYPE_USB3,
+ .has_pwrdn_delay = true,
+};
+static const struct qmp_phy_cfg sc8180x_usb3dpphy_cfg = {
.lanes = 2,
.serdes_tbl = sm8150_usb3_serdes_tbl,
@@ -1136,21 +1106,6 @@ static const struct qmp_phy_cfg sm8150_usb3phy_cfg = {
.pcs_tbl_num = ARRAY_SIZE(sm8150_usb3_pcs_tbl),
.pcs_usb_tbl = sm8150_usb3_pcs_usb_tbl,
.pcs_usb_tbl_num = ARRAY_SIZE(sm8150_usb3_pcs_usb_tbl),
- .clk_list = qmp_v4_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
- .reset_list = msm8996_usb3phy_reset_l,
- .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
- .vreg_list = qmp_phy_vreg_l,
- .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
- .regs = qmp_v4_usb3phy_regs_layout,
- .pcs_usb_offset = 0x300,
-
- .has_pwrdn_delay = true,
-};
-
-static const struct qmp_phy_cfg sc8180x_dpphy_cfg = {
- .type = PHY_TYPE_DP,
- .lanes = 2,
.dp_serdes_tbl = qmp_v4_dp_serdes_tbl,
.dp_serdes_tbl_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl),
@@ -1175,15 +1130,20 @@ static const struct qmp_phy_cfg sc8180x_dpphy_cfg = {
.configure_dp_tx = qcom_qmp_v4_phy_configure_dp_tx,
.configure_dp_phy = qcom_qmp_v4_phy_configure_dp_phy,
.calibrate_dp_phy = qcom_qmp_v4_dp_phy_calibrate,
-};
-static const struct qmp_phy_combo_cfg sc8180x_usb3dpphy_cfg = {
- .usb_cfg = &sm8150_usb3phy_cfg,
- .dp_cfg = &sc8180x_dpphy_cfg,
+ .clk_list = qmp_v4_phy_clk_l,
+ .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
+ .reset_list = msm8996_usb3phy_reset_l,
+ .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
+ .vreg_list = qmp_phy_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+ .regs = qmp_v4_usb3phy_regs_layout,
+ .pcs_usb_offset = 0x300,
+
+ .has_pwrdn_delay = true,
};
-static const struct qmp_phy_cfg sc8280xp_usb43dp_usb_cfg = {
- .type = PHY_TYPE_USB3,
+static const struct qmp_phy_cfg sc8280xp_usb43dpphy_cfg = {
.lanes = 2,
.serdes_tbl = sc8280xp_usb43dp_serdes_tbl,
@@ -1194,19 +1154,6 @@ static const struct qmp_phy_cfg sc8280xp_usb43dp_usb_cfg = {
.rx_tbl_num = ARRAY_SIZE(sc8280xp_usb43dp_rx_tbl),
.pcs_tbl = sc8280xp_usb43dp_pcs_tbl,
.pcs_tbl_num = ARRAY_SIZE(sc8280xp_usb43dp_pcs_tbl),
- .clk_list = qmp_v4_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
- .reset_list = msm8996_usb3phy_reset_l,
- .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
- .vreg_list = qmp_phy_vreg_l,
- .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
- .regs = qmp_v4_usb3phy_regs_layout,
- .pcs_usb_offset = 0x300,
-};
-
-static const struct qmp_phy_cfg sc8280xp_usb43dp_dp_cfg = {
- .type = PHY_TYPE_DP,
- .lanes = 2,
.dp_serdes_tbl = qmp_v5_dp_serdes_tbl,
.dp_serdes_tbl_num = ARRAY_SIZE(qmp_v5_dp_serdes_tbl),
@@ -1231,15 +1178,18 @@ static const struct qmp_phy_cfg sc8280xp_usb43dp_dp_cfg = {
.configure_dp_tx = qcom_qmp_v4_phy_configure_dp_tx,
.configure_dp_phy = qcom_qmp_v5_phy_configure_dp_phy,
.calibrate_dp_phy = qcom_qmp_v4_dp_phy_calibrate,
-};
-static const struct qmp_phy_combo_cfg sc8280xp_usb43dpphy_cfg = {
- .usb_cfg = &sc8280xp_usb43dp_usb_cfg,
- .dp_cfg = &sc8280xp_usb43dp_dp_cfg,
+ .clk_list = qmp_v4_phy_clk_l,
+ .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
+ .reset_list = msm8996_usb3phy_reset_l,
+ .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
+ .vreg_list = qmp_phy_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+ .regs = qmp_v4_usb3phy_regs_layout,
+ .pcs_usb_offset = 0x300,
};
-static const struct qmp_phy_cfg sm8250_usb3phy_cfg = {
- .type = PHY_TYPE_USB3,
+static const struct qmp_phy_cfg sm8250_usb3dpphy_cfg = {
.lanes = 2,
.serdes_tbl = sm8150_usb3_serdes_tbl,
@@ -1252,21 +1202,6 @@ static const struct qmp_phy_cfg sm8250_usb3phy_cfg = {
.pcs_tbl_num = ARRAY_SIZE(sm8250_usb3_pcs_tbl),
.pcs_usb_tbl = sm8250_usb3_pcs_usb_tbl,
.pcs_usb_tbl_num = ARRAY_SIZE(sm8250_usb3_pcs_usb_tbl),
- .clk_list = qmp_v4_sm8250_usbphy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_sm8250_usbphy_clk_l),
- .reset_list = msm8996_usb3phy_reset_l,
- .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
- .vreg_list = qmp_phy_vreg_l,
- .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
- .regs = qmp_v4_usb3phy_regs_layout,
- .pcs_usb_offset = 0x300,
-
- .has_pwrdn_delay = true,
-};
-
-static const struct qmp_phy_cfg sm8250_dpphy_cfg = {
- .type = PHY_TYPE_DP,
- .lanes = 2,
.dp_serdes_tbl = qmp_v4_dp_serdes_tbl,
.dp_serdes_tbl_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl),
@@ -1291,11 +1226,17 @@ static const struct qmp_phy_cfg sm8250_dpphy_cfg = {
.configure_dp_tx = qcom_qmp_v4_phy_configure_dp_tx,
.configure_dp_phy = qcom_qmp_v4_phy_configure_dp_phy,
.calibrate_dp_phy = qcom_qmp_v4_dp_phy_calibrate,
-};
-static const struct qmp_phy_combo_cfg sm8250_usb3dpphy_cfg = {
- .usb_cfg = &sm8250_usb3phy_cfg,
- .dp_cfg = &sm8250_dpphy_cfg,
+ .clk_list = qmp_v4_sm8250_usbphy_clk_l,
+ .num_clks = ARRAY_SIZE(qmp_v4_sm8250_usbphy_clk_l),
+ .reset_list = msm8996_usb3phy_reset_l,
+ .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
+ .vreg_list = qmp_phy_vreg_l,
+ .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
+ .regs = qmp_v4_usb3phy_regs_layout,
+ .pcs_usb_offset = 0x300,
+
+ .has_pwrdn_delay = true,
};
static void qmp_combo_configure_lane(void __iomem *base,
@@ -2720,10 +2661,7 @@ static int qmp_combo_probe(struct platform_device *pdev)
void __iomem *serdes;
void __iomem *usb_serdes;
void __iomem *dp_serdes = NULL;
- const struct qmp_phy_combo_cfg *combo_cfg = NULL;
const struct qmp_phy_cfg *cfg = NULL;
- const struct qmp_phy_cfg *usb_cfg = NULL;
- const struct qmp_phy_cfg *dp_cfg = NULL;
int num, id, expected_phys;
int ret;
@@ -2734,13 +2672,10 @@ static int qmp_combo_probe(struct platform_device *pdev)
qmp->dev = dev;
dev_set_drvdata(dev, qmp);
- combo_cfg = of_device_get_match_data(dev);
- if (!combo_cfg)
+ cfg = of_device_get_match_data(dev);
+ if (!cfg)
return -EINVAL;
- usb_cfg = combo_cfg->usb_cfg;
- cfg = usb_cfg; /* Setup clks and regulators */
-
usb_serdes = serdes = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(serdes))
return PTR_ERR(serdes);
@@ -2753,7 +2688,6 @@ static int qmp_combo_probe(struct platform_device *pdev)
if (IS_ERR(dp_serdes))
return PTR_ERR(dp_serdes);
- dp_cfg = combo_cfg->dp_cfg;
expected_phys = 2;
mutex_init(&qmp->phy_mutex);
@@ -2792,7 +2726,6 @@ static int qmp_combo_probe(struct platform_device *pdev)
id = 0;
for_each_available_child_of_node(dev->of_node, child) {
if (of_node_name_eq(child, "dp-phy")) {
- cfg = dp_cfg;
serdes = dp_serdes;
/* Create per-lane phy */
@@ -2810,7 +2743,6 @@ static int qmp_combo_probe(struct platform_device *pdev)
goto err_node_put;
}
} else if (of_node_name_eq(child, "usb3-phy")) {
- cfg = usb_cfg;
serdes = usb_serdes;
/* Create per-lane phy */

--
With best wishes
Dmitry