linux-kernel - [PATCH v3 2/6] phy: samsung-ufs: move cdr offset to drvdata

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Date:   Fri, 10 Jun 2022 12:59:20 +0530
From:   Alim Akhtar <alim.akhtar@...sung.com>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-phy@...ts.infradead.org
Cc:     devicetree@...r.kernel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, vkoul@...nel.org,
        avri.altman@....com, bvanassche@....org,
        martin.petersen@...cle.com, chanho61.park@...sung.com,
        pankaj.dubey@...sung.com, Alim Akhtar <alim.akhtar@...sung.com>,
        Bharat Uppal <bharat.uppal@...sung.com>
Subject: [PATCH v3 2/6] phy: samsung-ufs: move cdr offset to drvdata

Move CDR lock offset to drv data so that it can be extended for other SoCs
which are having CDR lock at different register offset.

Signed-off-by: Bharat Uppal <bharat.uppal@...sung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
Reviewed-by: Chanho Park <chanho61.park@...sung.com>
---
 drivers/phy/samsung/phy-exynos7-ufs.c      | 3 +++
 drivers/phy/samsung/phy-exynosautov9-ufs.c | 2 ++
 drivers/phy/samsung/phy-samsung-ufs.c      | 3 ++-
 drivers/phy/samsung/phy-samsung-ufs.h      | 2 +-
 4 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/samsung/phy-exynos7-ufs.c b/drivers/phy/samsung/phy-exynos7-ufs.c
index d1e9d0ae5c1d..72854336f59d 100644
--- a/drivers/phy/samsung/phy-exynos7-ufs.c
+++ b/drivers/phy/samsung/phy-exynos7-ufs.c
@@ -11,6 +11,8 @@
 #define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK	0x1
 #define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN	BIT(0)
 
+#define EXYNOS7_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS	0x5e
+
 /* Calibration for phy initialization */
 static const struct samsung_ufs_phy_cfg exynos7_pre_init_cfg[] = {
 	PHY_COMN_REG_CFG(0x00f, 0xfa, PWR_MODE_ANY),
@@ -74,4 +76,5 @@ const struct samsung_ufs_phy_drvdata exynos7_ufs_phy = {
 		.en = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN,
 	},
 	.has_symbol_clk = 1,
+	.cdr_lock_status_offset = EXYNOS7_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS,
 };
diff --git a/drivers/phy/samsung/phy-exynosautov9-ufs.c b/drivers/phy/samsung/phy-exynosautov9-ufs.c
index fa4d2983eec6..2b256070d657 100644
--- a/drivers/phy/samsung/phy-exynosautov9-ufs.c
+++ b/drivers/phy/samsung/phy-exynosautov9-ufs.c
@@ -10,6 +10,7 @@
 #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL		0x728
 #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_MASK	0x1
 #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_EN		BIT(0)
+#define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS	0x5e
 
 #define PHY_TRSV_REG_CFG_AUTOV9(o, v, d) \
 	PHY_TRSV_REG_CFG_OFFSET(o, v, d, 0x50)
@@ -64,4 +65,5 @@ const struct samsung_ufs_phy_drvdata exynosautov9_ufs_phy = {
 		.en = EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_EN,
 	},
 	.has_symbol_clk = 0,
+	.cdr_lock_status_offset = EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS,
 };
diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index 206a79c69a6c..7218acd2b113 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -63,7 +63,8 @@ static int samsung_ufs_phy_wait_for_lock_acq(struct phy *phy)
 	}
 
 	err = readl_poll_timeout(
-			ufs_phy->reg_pma + PHY_APB_ADDR(PHY_CDR_LOCK_STATUS),
+			ufs_phy->reg_pma +
+			PHY_APB_ADDR(ufs_phy->drvdata->cdr_lock_status_offset),
 			val, (val & PHY_CDR_LOCK_BIT), sleep_us, timeout_us);
 	if (err)
 		dev_err(ufs_phy->dev,
diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h
index 854b53bdf347..913542ebff7a 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.h
+++ b/drivers/phy/samsung/phy-samsung-ufs.h
@@ -40,7 +40,6 @@
 
 /* UFS PHY registers */
 #define PHY_PLL_LOCK_STATUS	0x1e
-#define PHY_CDR_LOCK_STATUS	0x5e
 
 #define PHY_PLL_LOCK_BIT	BIT(5)
 #define PHY_CDR_LOCK_BIT	BIT(4)
@@ -111,6 +110,7 @@ struct samsung_ufs_phy_drvdata {
 	const struct samsung_ufs_phy_cfg **cfgs;
 	struct samsung_ufs_phy_pmu_isol isol;
 	bool has_symbol_clk;
+	u32 cdr_lock_status_offset;
 };
 
 struct samsung_ufs_phy {
-- 
2.25.1