Re: [PATCH 14/17] phy: qcom-qmp-combo: consolidate lane config
From: Neil Armstrong
Date: Tue Sep 20 2022 - 09:53:24 EST
On 20/09/2022 09:38, Johan Hovold wrote:
For legacy reasons, there are two configuration parameters that appear
to describe the number of lanes a PHY has, even if "nlanes" was actually
used for a different purpose.
Replace them both with a new field simply named "lanes".
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 38 ++++++++---------------
1 file changed, 13 insertions(+), 25 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index 08e96e383a29..417e0fcf1a9f 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -816,8 +816,7 @@ struct qmp_phy;
struct qmp_phy_cfg {
/* phy-type - PCIE/UFS/USB */
unsigned int type;
- /* number of lanes provided by phy */
- int nlanes;
+ int lanes;
/* Init sequence for PHY blocks - serdes, tx, rx, pcs */
const struct qmp_phy_init_tbl *serdes_tbl;
@@ -879,8 +878,6 @@ struct qmp_phy_cfg {
/* true, if PHY has a separate DP_COM control block */
bool has_phy_dp_com_ctrl;
- /* true, if PHY has secondary tx/rx lanes to be configured */
- bool is_dual_lane_phy;
/* Offset from PCS to PCS_USB region */
unsigned int pcs_usb_offset;
@@ -1029,7 +1026,7 @@ static const char * const sc7180_usb3phy_reset_l[] = {
static const struct qmp_phy_cfg sc7180_usb3phy_cfg = {
.type = PHY_TYPE_USB3,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = qmp_v3_usb3_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(qmp_v3_usb3_serdes_tbl),
@@ -1056,12 +1053,11 @@ static const struct qmp_phy_cfg sc7180_usb3phy_cfg = {
.pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX,
.has_phy_dp_com_ctrl = true,
- .is_dual_lane_phy = true,
};
static const struct qmp_phy_cfg sc7180_dpphy_cfg = {
.type = PHY_TYPE_DP,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = qmp_v3_dp_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(qmp_v3_dp_serdes_tbl),
@@ -1091,7 +1087,6 @@ static const struct qmp_phy_cfg sc7180_dpphy_cfg = {
.regs = qmp_v3_usb3phy_regs_layout,
.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,
@@ -1106,7 +1101,7 @@ static const struct qmp_phy_combo_cfg sc7180_usb3dpphy_cfg = {
static const struct qmp_phy_cfg sdm845_usb3phy_cfg = {
.type = PHY_TYPE_USB3,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = qmp_v3_usb3_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(qmp_v3_usb3_serdes_tbl),
@@ -1133,7 +1128,6 @@ static const struct qmp_phy_cfg sdm845_usb3phy_cfg = {
.pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX,
.has_phy_dp_com_ctrl = true,
- .is_dual_lane_phy = true,
};
static const struct qmp_phy_combo_cfg sdm845_usb3dpphy_cfg = {
@@ -1143,7 +1137,7 @@ static const struct qmp_phy_combo_cfg sdm845_usb3dpphy_cfg = {
static const struct qmp_phy_cfg sm8150_usb3phy_cfg = {
.type = PHY_TYPE_USB3,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = sm8150_usb3_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(sm8150_usb3_serdes_tbl),
@@ -1174,12 +1168,11 @@ static const struct qmp_phy_cfg sm8150_usb3phy_cfg = {
.pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX,
.has_phy_dp_com_ctrl = true,
- .is_dual_lane_phy = true,
};
static const struct qmp_phy_cfg sc8180x_dpphy_cfg = {
.type = PHY_TYPE_DP,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = qmp_v4_dp_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl),
@@ -1209,7 +1202,6 @@ static const struct qmp_phy_cfg sc8180x_dpphy_cfg = {
.regs = qmp_v3_usb3phy_regs_layout,
.has_phy_dp_com_ctrl = true,
- .is_dual_lane_phy = true,
.dp_aux_init = qcom_qmp_v4_phy_dp_aux_init,
.configure_dp_tx = qcom_qmp_v4_phy_configure_dp_tx,
@@ -1224,7 +1216,7 @@ static const struct qmp_phy_combo_cfg sc8180x_usb3dpphy_cfg = {
static const struct qmp_phy_cfg sc8280xp_usb43dp_usb_cfg = {
.type = PHY_TYPE_USB3,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = sc8280xp_usb43dp_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(sc8280xp_usb43dp_serdes_tbl),
@@ -1252,12 +1244,11 @@ static const struct qmp_phy_cfg sc8280xp_usb43dp_usb_cfg = {
.pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX,
.has_phy_dp_com_ctrl = true,
- .is_dual_lane_phy = true,
};
static const struct qmp_phy_cfg sc8280xp_usb43dp_dp_cfg = {
.type = PHY_TYPE_DP,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = qmp_v5_dp_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(qmp_v5_dp_serdes_tbl),
@@ -1287,7 +1278,6 @@ static const struct qmp_phy_cfg sc8280xp_usb43dp_dp_cfg = {
.regs = qmp_v4_usb3phy_regs_layout,
.has_phy_dp_com_ctrl = true,
- .is_dual_lane_phy = true,
.dp_aux_init = qcom_qmp_v4_phy_dp_aux_init,
.configure_dp_tx = qcom_qmp_v4_phy_configure_dp_tx,
@@ -1302,7 +1292,7 @@ static const struct qmp_phy_combo_cfg sc8280xp_usb43dpphy_combo_cfg = {
static const struct qmp_phy_cfg sm8250_usb3phy_cfg = {
.type = PHY_TYPE_USB3,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = sm8150_usb3_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(sm8150_usb3_serdes_tbl),
@@ -1332,12 +1322,11 @@ static const struct qmp_phy_cfg sm8250_usb3phy_cfg = {
.pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX,
.has_phy_dp_com_ctrl = true,
- .is_dual_lane_phy = true,
};
static const struct qmp_phy_cfg sm8250_dpphy_cfg = {
.type = PHY_TYPE_DP,
- .nlanes = 1,
+ .lanes = 2,
.serdes_tbl = qmp_v4_dp_serdes_tbl,
.serdes_tbl_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl),
@@ -1367,7 +1356,6 @@ static const struct qmp_phy_cfg sm8250_dpphy_cfg = {
.regs = qmp_v4_usb3phy_regs_layout,
.has_phy_dp_com_ctrl = true,
- .is_dual_lane_phy = true,
.dp_aux_init = qcom_qmp_v4_phy_dp_aux_init,
.configure_dp_tx = qcom_qmp_v4_phy_configure_dp_tx,
@@ -2117,7 +2105,7 @@ static int qmp_combo_power_on(struct phy *phy)
/* Tx, Rx, and PCS configurations */
qmp_combo_configure_lane(tx, cfg->regs, cfg->tx_tbl, cfg->tx_tbl_num, 1);
- if (cfg->is_dual_lane_phy) {
+ if (cfg->lanes >= 2) {
qmp_combo_configure_lane(qphy->tx2, cfg->regs, cfg->tx_tbl,
cfg->tx_tbl_num, 2);
}
@@ -2128,7 +2116,7 @@ static int qmp_combo_power_on(struct phy *phy)
qmp_combo_configure_lane(rx, cfg->regs, cfg->rx_tbl, cfg->rx_tbl_num, 1);
- if (cfg->is_dual_lane_phy) {
+ if (cfg->lanes >= 2) {
qmp_combo_configure_lane(qphy->rx2, cfg->regs, cfg->rx_tbl,
cfg->rx_tbl_num, 2);
}
@@ -2725,7 +2713,7 @@ static int qmp_combo_create(struct device *dev, struct device_node *np, int id,
if (cfg->pcs_usb_offset)
qphy->pcs_usb = qphy->pcs + cfg->pcs_usb_offset;
- if (cfg->is_dual_lane_phy) {
+ if (cfg->lanes >= 2) {
qphy->tx2 = devm_of_iomap(dev, np, 3, NULL);
if (IS_ERR(qphy->tx2))
return PTR_ERR(qphy->tx2);
Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>