linux-kernel - [PATCH 15/17] phy: qcom-qmp-ufs: consolidate lane config

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Date:   Tue, 20 Sep 2022 09:38:24 +0200
From:   Johan Hovold <johan+linaro@...nel.org>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH 15/17] phy: qcom-qmp-ufs: consolidate lane config

For legacy reasons, there are two configuration parameters that describe
the number of lanes a PHY has.

Replace them both with a new field simply named "lanes".

Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-ufs.c | 31 ++++++++-----------------
 1 file changed, 10 insertions(+), 21 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
index ca9a42250556..d21b977850b3 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
@@ -533,8 +533,7 @@ static const struct qmp_phy_init_tbl sm8350_ufsphy_pcs_tbl[] = {
 
 /* struct qmp_phy_cfg - per-PHY initialization config */
 struct qmp_phy_cfg {
-	/* 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;
@@ -561,9 +560,6 @@ struct qmp_phy_cfg {
 	/* bit offset of PHYSTATUS in QPHY_PCS_STATUS register */
 	unsigned int phy_status;
 
-	/* true, if PHY has secondary tx/rx lanes to be configured */
-	bool is_dual_lane_phy;
-
 	/* true, if PCS block has no separate SW_RESET register */
 	bool no_pcs_sw_reset;
 };
@@ -662,7 +658,7 @@ static const char * const qmp_phy_vreg_l[] = {
 };
 
 static const struct qmp_phy_cfg msm8996_ufs_cfg = {
-	.nlanes			= 1,
+	.lanes			= 1,
 
 	.serdes_tbl		= msm8996_ufs_serdes_tbl,
 	.serdes_tbl_num		= ARRAY_SIZE(msm8996_ufs_serdes_tbl),
@@ -687,7 +683,7 @@ static const struct qmp_phy_cfg msm8996_ufs_cfg = {
 };
 
 static const struct qmp_phy_cfg sdm845_ufsphy_cfg = {
-	.nlanes			= 2,
+	.lanes			= 2,
 
 	.serdes_tbl		= sdm845_ufsphy_serdes_tbl,
 	.serdes_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_serdes_tbl),
@@ -707,12 +703,11 @@ static const struct qmp_phy_cfg sdm845_ufsphy_cfg = {
 	.pwrdn_ctrl		= SW_PWRDN,
 	.phy_status		= PHYSTATUS,
 
-	.is_dual_lane_phy	= true,
 	.no_pcs_sw_reset	= true,
 };
 
 static const struct qmp_phy_cfg sm6115_ufsphy_cfg = {
-	.nlanes			= 1,
+	.lanes			= 1,
 
 	.serdes_tbl		= sm6115_ufsphy_serdes_tbl,
 	.serdes_tbl_num		= ARRAY_SIZE(sm6115_ufsphy_serdes_tbl),
@@ -735,7 +730,7 @@ static const struct qmp_phy_cfg sm6115_ufsphy_cfg = {
 };
 
 static const struct qmp_phy_cfg sm8150_ufsphy_cfg = {
-	.nlanes			= 2,
+	.lanes			= 2,
 
 	.serdes_tbl		= sm8150_ufsphy_serdes_tbl,
 	.serdes_tbl_num		= ARRAY_SIZE(sm8150_ufsphy_serdes_tbl),
@@ -754,12 +749,10 @@ static const struct qmp_phy_cfg sm8150_ufsphy_cfg = {
 	.start_ctrl		= SERDES_START,
 	.pwrdn_ctrl		= SW_PWRDN,
 	.phy_status		= PHYSTATUS,
-
-	.is_dual_lane_phy	= true,
 };
 
 static const struct qmp_phy_cfg sm8350_ufsphy_cfg = {
-	.nlanes			= 2,
+	.lanes			= 2,
 
 	.serdes_tbl		= sm8350_ufsphy_serdes_tbl,
 	.serdes_tbl_num		= ARRAY_SIZE(sm8350_ufsphy_serdes_tbl),
@@ -778,12 +771,10 @@ static const struct qmp_phy_cfg sm8350_ufsphy_cfg = {
 	.start_ctrl		= SERDES_START,
 	.pwrdn_ctrl		= SW_PWRDN,
 	.phy_status		= PHYSTATUS,
-
-	.is_dual_lane_phy	= true,
 };
 
 static const struct qmp_phy_cfg sm8450_ufsphy_cfg = {
-	.nlanes			= 2,
+	.lanes			= 2,
 
 	.serdes_tbl		= sm8350_ufsphy_serdes_tbl,
 	.serdes_tbl_num		= ARRAY_SIZE(sm8350_ufsphy_serdes_tbl),
@@ -802,8 +793,6 @@ static const struct qmp_phy_cfg sm8450_ufsphy_cfg = {
 	.start_ctrl		= SERDES_START,
 	.pwrdn_ctrl		= SW_PWRDN,
 	.phy_status		= PHYSTATUS,
-
-	.is_dual_lane_phy	= true,
 };
 
 static void qmp_ufs_configure_lane(void __iomem *base,
@@ -956,14 +945,14 @@ static int qmp_ufs_power_on(struct phy *phy)
 	/* Tx, Rx, and PCS configurations */
 	qmp_ufs_configure_lane(tx, cfg->regs, cfg->tx_tbl, cfg->tx_tbl_num, 1);
 
-	if (cfg->is_dual_lane_phy) {
+	if (cfg->lanes >= 2) {
 		qmp_ufs_configure_lane(qphy->tx2, cfg->regs,
 					cfg->tx_tbl, cfg->tx_tbl_num, 2);
 	}
 
 	qmp_ufs_configure_lane(rx, cfg->regs, cfg->rx_tbl, cfg->rx_tbl_num, 1);
 
-	if (cfg->is_dual_lane_phy) {
+	if (cfg->lanes >= 2) {
 		qmp_ufs_configure_lane(qphy->rx2, cfg->regs,
 					cfg->rx_tbl, cfg->rx_tbl_num, 2);
 	}
@@ -1122,7 +1111,7 @@ static int qmp_ufs_create(struct device *dev, struct device_node *np, int id,
 	if (IS_ERR(qphy->pcs))
 		return PTR_ERR(qphy->pcs);
 
-	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);
-- 
2.35.1