[v2,11/15] phy: qcom: qmp-usb: drop dual-lane handling

Commit Message

Dmitry Baryshkov Jan. 13, 2024, 8:55 p.m. UTC

Now as all dual-lane PHYs have been migrated to a new driver, drop
support for dual lanes configuration. If the PHY uses two lanes for USB,
it is symthom that it should use either a combo USB+DP or a USB-C PHY
driver.

Reviewed-by: Konrad Dybcio <[e-mail]>
Signed-off-by: Dmitry Baryshkov <[e-mail]>
---
 drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 57 +--------------------------------
 1 file changed, 1 insertion(+), 56 deletions(-)

Comments

Jeff Johnson Jan. 17, 2024, 12:07 a.m. UTC | #1

On 1/13/2024 12:55 PM, Dmitry Baryshkov wrote:
> Now as all dual-lane PHYs have been migrated to a new driver, drop
> support for dual lanes configuration. If the PHY uses two lanes for USB,
> it is symthom that it should use either a combo USB+DP or a USB-C PHY

now responding on the latest thread...
if you re-spin: s/symthom/symptom/

Patch

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
index c7698369d3dc..e62539ce99a6 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
@@ -1237,15 +1237,10 @@  struct qmp_usb_offsets {
 	u16 pcs_usb;
 	u16 tx;
 	u16 rx;
-	/* for PHYs with >= 2 lanes */
-	u16 tx2;
-	u16 rx2;
 };
 
 /* struct qmp_phy_cfg - per-PHY initialization config */
 struct qmp_phy_cfg {
-	int lanes;
-
 	const struct qmp_usb_offsets *offsets;
 
 	/* Init sequence for PHY blocks - serdes, tx, rx, pcs */
@@ -1285,8 +1280,6 @@  struct qmp_usb {
 	void __iomem *pcs_usb;
 	void __iomem *tx;
 	void __iomem *rx;
-	void __iomem *tx2;
-	void __iomem *rx2;
 
 	struct clk *pipe_clk;
 	struct clk_bulk_data *clks;
@@ -1393,8 +1386,6 @@  static const struct qmp_usb_offsets qmp_usb_offsets_v7 = {
 };
 
 static const struct qmp_phy_cfg ipq8074_usb3phy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v3,
 
 	.serdes_tbl		= ipq8074_usb3_serdes_tbl,
@@ -1411,8 +1402,6 @@  static const struct qmp_phy_cfg ipq8074_usb3phy_cfg = {
 };
 
 static const struct qmp_phy_cfg ipq9574_usb3phy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_ipq9574,
 
 	.serdes_tbl		= ipq9574_usb3_serdes_tbl,
@@ -1429,8 +1418,6 @@  static const struct qmp_phy_cfg ipq9574_usb3phy_cfg = {
 };
 
 static const struct qmp_phy_cfg msm8996_usb3phy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v3,
 
 	.serdes_tbl		= msm8996_usb3_serdes_tbl,
@@ -1447,8 +1434,6 @@  static const struct qmp_phy_cfg msm8996_usb3phy_cfg = {
 };
 
 static const struct qmp_phy_cfg sa8775p_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v5,
 
 	.serdes_tbl		= sc8280xp_usb3_uniphy_serdes_tbl,
@@ -1467,8 +1452,6 @@  static const struct qmp_phy_cfg sa8775p_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg sc8280xp_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v5,
 
 	.serdes_tbl		= sc8280xp_usb3_uniphy_serdes_tbl,
@@ -1487,8 +1470,6 @@  static const struct qmp_phy_cfg sc8280xp_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg qmp_v3_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v3,
 
 	.serdes_tbl		= qmp_v3_usb3_uniphy_serdes_tbl,
@@ -1507,8 +1488,6 @@  static const struct qmp_phy_cfg qmp_v3_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg sm8150_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v4,
 
 	.serdes_tbl		= sm8150_usb3_uniphy_serdes_tbl,
@@ -1530,8 +1509,6 @@  static const struct qmp_phy_cfg sm8150_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg sm8250_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v4,
 
 	.serdes_tbl		= sm8150_usb3_uniphy_serdes_tbl,
@@ -1553,8 +1530,6 @@  static const struct qmp_phy_cfg sm8250_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg sdx55_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v4,
 
 	.serdes_tbl		= sm8150_usb3_uniphy_serdes_tbl,
@@ -1576,8 +1551,6 @@  static const struct qmp_phy_cfg sdx55_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg sdx65_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v5,
 
 	.serdes_tbl		= sm8150_usb3_uniphy_serdes_tbl,
@@ -1599,7 +1572,6 @@  static const struct qmp_phy_cfg sdx65_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg sdx75_usb3_uniphy_cfg = {
-	.lanes			= 1,
 	.offsets		= &qmp_usb_offsets_v6,
 
 	.serdes_tbl		= sdx75_usb3_uniphy_serdes_tbl,
@@ -1621,8 +1593,6 @@  static const struct qmp_phy_cfg sdx75_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg sm8350_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v5,
 
 	.serdes_tbl		= sm8150_usb3_uniphy_serdes_tbl,
@@ -1644,8 +1614,6 @@  static const struct qmp_phy_cfg sm8350_usb3_uniphy_cfg = {
 };
 
 static const struct qmp_phy_cfg x1e80100_usb3_uniphy_cfg = {
-	.lanes			= 1,
-
 	.offsets		= &qmp_usb_offsets_v7,
 
 	.serdes_tbl		= x1e80100_usb3_uniphy_serdes_tbl,
@@ -1780,11 +1748,6 @@  static int qmp_usb_power_on(struct phy *phy)
 	qmp_usb_configure_lane(tx, cfg->tx_tbl, cfg->tx_tbl_num, 1);
 	qmp_usb_configure_lane(rx, cfg->rx_tbl, cfg->rx_tbl_num, 1);
 
-	if (cfg->lanes >= 2) {
-		qmp_usb_configure_lane(qmp->tx2, cfg->tx_tbl, cfg->tx_tbl_num, 2);
-		qmp_usb_configure_lane(qmp->rx2, cfg->rx_tbl, cfg->rx_tbl_num, 2);
-	}
-
 	qmp_usb_configure(pcs, cfg->pcs_tbl, cfg->pcs_tbl_num);
 
 	if (pcs_usb)
@@ -2131,7 +2094,6 @@  static int qmp_usb_parse_dt_legacy(struct qmp_usb *qmp, struct device_node *np)
 	/*
 	 * Get memory resources for the PHY:
 	 * Resources are indexed as: tx -> 0; rx -> 1; pcs -> 2.
-	 * For dual lane PHYs: tx2 -> 3, rx2 -> 4, pcs_misc (optional) -> 5
 	 * For single lane PHYs: pcs_misc (optional) -> 3.
 	 */
 	qmp->tx = devm_of_iomap(dev, np, 0, NULL);
@@ -2149,19 +2111,7 @@  static int qmp_usb_parse_dt_legacy(struct qmp_usb *qmp, struct device_node *np)
 	if (cfg->pcs_usb_offset)
 		qmp->pcs_usb = qmp->pcs + cfg->pcs_usb_offset;
 
-	if (cfg->lanes >= 2) {
-		qmp->tx2 = devm_of_iomap(dev, np, 3, NULL);
-		if (IS_ERR(qmp->tx2))
-			return PTR_ERR(qmp->tx2);
-
-		qmp->rx2 = devm_of_iomap(dev, np, 4, NULL);
-		if (IS_ERR(qmp->rx2))
-			return PTR_ERR(qmp->rx2);
-
-		qmp->pcs_misc = devm_of_iomap(dev, np, 5, NULL);
-	} else {
-		qmp->pcs_misc = devm_of_iomap(dev, np, 3, NULL);
-	}
+	qmp->pcs_misc = devm_of_iomap(dev, np, 3, NULL);
 
 	if (IS_ERR(qmp->pcs_misc)) {
 		dev_vdbg(dev, "PHY pcs_misc-reg not used\n");
@@ -2213,11 +2163,6 @@  static int qmp_usb_parse_dt(struct qmp_usb *qmp)
 	qmp->tx = base + offs->tx;
 	qmp->rx = base + offs->rx;
 
-	if (cfg->lanes >= 2) {
-		qmp->tx2 = base + offs->tx2;
-		qmp->rx2 = base + offs->rx2;
-	}
-
 	ret = qmp_usb_clk_init(qmp);
 	if (ret)
 		return ret;