Merge patch series "scsi: ufs: qcom: Code cleanups"

Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> says:

Hello,

This series has code some cleanups to the Qcom UFS driver. No
functional change. In this version, I've removed code supporting
legacy controllers ver < 2.0, as the respective platforms were never
supported in upstream.

Tested on: RB5 development board based on Qcom SM8250 SoC.

Link: https://lore.kernel.org/r/20231208065902.11006-1-manivannan.sadhasivam@linaro.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/ufs/core/ufshcd.c

@@ -289,21 +289,23 @@ static void ufshcd_wb_toggle_buf_flush_during_h8(struct ufs_hba *hba,
 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba);
 static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba);
 
-static inline void ufshcd_enable_irq(struct ufs_hba *hba)
+void ufshcd_enable_irq(struct ufs_hba *hba)
 {
 	if (!hba->is_irq_enabled) {
 		enable_irq(hba->irq);
 		hba->is_irq_enabled = true;
 	}
 }
+EXPORT_SYMBOL_GPL(ufshcd_enable_irq);
 
-static inline void ufshcd_disable_irq(struct ufs_hba *hba)
+void ufshcd_disable_irq(struct ufs_hba *hba)
 {
 	if (hba->is_irq_enabled) {
 		disable_irq(hba->irq);
 		hba->is_irq_enabled = false;
 	}
 }
+EXPORT_SYMBOL_GPL(ufshcd_disable_irq);
 
 static void ufshcd_configure_wb(struct ufs_hba *hba)
 {

drivers/ufs/host/ufs-qcom.h

@@ -10,24 +10,18 @@
 #include <soc/qcom/ice.h>
 #include <ufs/ufshcd.h>
 
-#define MAX_UFS_QCOM_HOSTS	1
-#define MAX_U32                 (~(u32)0)
 #define MPHY_TX_FSM_STATE       0x41
 #define TX_FSM_HIBERN8          0x1
 #define HBRN8_POLL_TOUT_MS      100
 #define DEFAULT_CLK_RATE_HZ     1000000
-#define BUS_VECTOR_NAME_LEN     32
 #define MAX_SUPP_MAC		64
 
 #define UFS_HW_VER_MAJOR_MASK	GENMASK(31, 28)
 #define UFS_HW_VER_MINOR_MASK	GENMASK(27, 16)
 #define UFS_HW_VER_STEP_MASK	GENMASK(15, 0)
-
 #define UFS_DEV_VER_MAJOR_MASK	GENMASK(7, 4)
 
-/* vendor specific pre-defined parameters */
-#define SLOW 1
-#define FAST 2
+#define UFS_QCOM_LIMIT_HS_RATE		PA_HS_MODE_B
 
 /* QCOM UFS host controller vendor specific registers */
 enum {
@@ -95,9 +89,6 @@ enum {
 #define TEST_BUS_SEL		GENMASK(22, 19)
 #define UFS_REG_TEST_BUS_EN	BIT(30)
 
-#define UFS_PHY_RESET_ENABLE	1
-#define UFS_PHY_RESET_DISABLE	0
-
 /* bit definitions for REG_UFS_CFG2 register */
 #define UAWM_HW_CGC_EN		BIT(0)
 #define UARM_HW_CGC_EN		BIT(1)
@@ -108,6 +99,9 @@ enum {
 #define TMRLUT_HW_CGC_EN	BIT(6)
 #define OCSC_HW_CGC_EN		BIT(7)
 
+/* bit definitions for REG_UFS_CFG3 register */
+#define ESI_VEC_MASK		GENMASK(22, 12)
+
 /* bit definitions for REG_UFS_PARAM0 */
 #define MAX_HS_GEAR_MASK	GENMASK(6, 4)
 #define UFS_QCOM_MAX_GEAR(x)	FIELD_GET(MAX_HS_GEAR_MASK, (x))
@@ -120,13 +114,6 @@ enum {
 				 DFC_HW_CGC_EN | TRLUT_HW_CGC_EN |\
 				 TMRLUT_HW_CGC_EN | OCSC_HW_CGC_EN)
 
-/* bit offset */
-#define OFFSET_CLK_NS_REG		0xa
-
-/* bit masks */
-#define MASK_TX_SYMBOL_CLK_1US_REG	GENMASK(9, 0)
-#define MASK_CLK_NS_REG			GENMASK(23, 10)
-
 /* QUniPro Vendor specific attributes */
 #define PA_VS_CONFIG_REG1	0x9000
 #define DME_VS_CORE_CLK_CTRL	0xD002
@@ -160,8 +147,7 @@ ufs_qcom_get_controller_revision(struct ufs_hba *hba,
 
 static inline void ufs_qcom_assert_reset(struct ufs_hba *hba)
 {
-	ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, FIELD_PREP(UFS_PHY_SOFT_RESET, UFS_PHY_RESET_ENABLE),
-		    REG_UFS_CFG1);
+	ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, UFS_PHY_SOFT_RESET, REG_UFS_CFG1);
 
 	/*
 	 * Make sure assertion of ufs phy reset is written to
@@ -172,8 +158,7 @@ static inline void ufs_qcom_assert_reset(struct ufs_hba *hba)
 
 static inline void ufs_qcom_deassert_reset(struct ufs_hba *hba)
 {
-	ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, FIELD_PREP(UFS_PHY_SOFT_RESET, UFS_PHY_RESET_DISABLE),
-		    REG_UFS_CFG1);
+	ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, 0, REG_UFS_CFG1);
 
 	/*
 	 * Make sure de-assertion of ufs phy reset is written to
@@ -197,28 +182,11 @@ struct ufs_qcom_testbus {
 struct gpio_desc;
 
 struct ufs_qcom_host {
-	/*
-	 * Set this capability if host controller supports the QUniPro mode
-	 * and if driver wants the Host controller to operate in QUniPro mode.
-	 * Note: By default this capability will be kept enabled if host
-	 * controller supports the QUniPro mode.
-	 */
-	#define UFS_QCOM_CAP_QUNIPRO	0x1
-
-	/*
-	 * Set this capability if host controller can retain the secure
-	 * configuration even after UFS controller core power collapse.
-	 */
-	#define UFS_QCOM_CAP_RETAIN_SEC_CFG_AFTER_PWR_COLLAPSE	0x2
-	u32 caps;
-
 	struct phy *generic_phy;
 	struct ufs_hba *hba;
 	struct ufs_pa_layer_attr dev_req_params;
-	struct clk *rx_l0_sync_clk;
-	struct clk *tx_l0_sync_clk;
-	struct clk *rx_l1_sync_clk;
-	struct clk *tx_l1_sync_clk;
+	struct clk_bulk_data *clks;
+	u32 num_clks;
 	bool is_lane_clks_enabled;
 
 	struct icc_path *icc_ddr;
@@ -264,9 +232,4 @@ ufs_qcom_get_debug_reg_offset(struct ufs_qcom_host *host, u32 reg)
 
 int ufs_qcom_testbus_config(struct ufs_qcom_host *host);
 
-static inline bool ufs_qcom_cap_qunipro(struct ufs_qcom_host *host)
-{
-	return host->caps & UFS_QCOM_CAP_QUNIPRO;
-}
-
 #endif /* UFS_QCOM_H_ */

include/ufs/ufshcd.h

@@ -1236,6 +1236,8 @@ static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg)
 	ufshcd_writel(hba, tmp, reg);
 }
 
+void ufshcd_enable_irq(struct ufs_hba *hba);
+void ufshcd_disable_irq(struct ufs_hba *hba);
 int ufshcd_alloc_host(struct device *, struct ufs_hba **);
 void ufshcd_dealloc_host(struct ufs_hba *);
 int ufshcd_hba_enable(struct ufs_hba *hba);