Adding upstream version 6.8.9.upstream/6.8.9

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 146 insertions, 348 deletions

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 0d38864553..bcbcf75892 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -4,26 +4,26 @@
  */
 
 #include <linux/acpi.h>
-#include <linux/time.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/devfreq.h>
+#include <linux/gpio/consumer.h>
 #include <linux/interconnect.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/platform_device.h>
 #include <linux/phy/phy.h>
-#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
 #include <linux/reset-controller.h>
-#include <linux/devfreq.h>
+#include <linux/time.h>
 
 #include <soc/qcom/ice.h>
 
 #include <ufs/ufshcd.h>
-#include "ufshcd-pltfrm.h"
-#include <ufs/unipro.h>
-#include "ufs-qcom.h"
 #include <ufs/ufshci.h>
 #include <ufs/ufs_quirks.h>
+#include <ufs/unipro.h>
+#include "ufshcd-pltfrm.h"
+#include "ufs-qcom.h"
 
 #define MCQ_QCFGPTR_MASK	GENMASK(7, 0)
 #define MCQ_QCFGPTR_UNIT	0x200
@@ -47,7 +47,7 @@ enum {
 	TSTBUS_MAX,
 };
 
-#define QCOM_UFS_MAX_GEAR 4
+#define QCOM_UFS_MAX_GEAR 5
 #define QCOM_UFS_MAX_LANE 2
 
 enum {
@@ -67,31 +67,35 @@ static const struct __ufs_qcom_bw_table {
 	[MODE_PWM][UFS_PWM_G2][UFS_LANE_1] = { 1844,		1000 },
 	[MODE_PWM][UFS_PWM_G3][UFS_LANE_1] = { 3688,		1000 },
 	[MODE_PWM][UFS_PWM_G4][UFS_LANE_1] = { 7376,		1000 },
+	[MODE_PWM][UFS_PWM_G5][UFS_LANE_1] = { 14752,		1000 },
 	[MODE_PWM][UFS_PWM_G1][UFS_LANE_2] = { 1844,		1000 },
 	[MODE_PWM][UFS_PWM_G2][UFS_LANE_2] = { 3688,		1000 },
 	[MODE_PWM][UFS_PWM_G3][UFS_LANE_2] = { 7376,		1000 },
 	[MODE_PWM][UFS_PWM_G4][UFS_LANE_2] = { 14752,		1000 },
+	[MODE_PWM][UFS_PWM_G5][UFS_LANE_2] = { 29504,		1000 },
 	[MODE_HS_RA][UFS_HS_G1][UFS_LANE_1] = { 127796,		1000 },
 	[MODE_HS_RA][UFS_HS_G2][UFS_LANE_1] = { 255591,		1000 },
 	[MODE_HS_RA][UFS_HS_G3][UFS_LANE_1] = { 1492582,	102400 },
 	[MODE_HS_RA][UFS_HS_G4][UFS_LANE_1] = { 2915200,	204800 },
+	[MODE_HS_RA][UFS_HS_G5][UFS_LANE_1] = { 5836800,	409600 },
 	[MODE_HS_RA][UFS_HS_G1][UFS_LANE_2] = { 255591,		1000 },
 	[MODE_HS_RA][UFS_HS_G2][UFS_LANE_2] = { 511181,		1000 },
 	[MODE_HS_RA][UFS_HS_G3][UFS_LANE_2] = { 1492582,	204800 },
 	[MODE_HS_RA][UFS_HS_G4][UFS_LANE_2] = { 2915200,	409600 },
+	[MODE_HS_RA][UFS_HS_G5][UFS_LANE_2] = { 5836800,	819200 },
 	[MODE_HS_RB][UFS_HS_G1][UFS_LANE_1] = { 149422,		1000 },
 	[MODE_HS_RB][UFS_HS_G2][UFS_LANE_1] = { 298189,		1000 },
 	[MODE_HS_RB][UFS_HS_G3][UFS_LANE_1] = { 1492582,	102400 },
 	[MODE_HS_RB][UFS_HS_G4][UFS_LANE_1] = { 2915200,	204800 },
+	[MODE_HS_RB][UFS_HS_G5][UFS_LANE_1] = { 5836800,	409600 },
 	[MODE_HS_RB][UFS_HS_G1][UFS_LANE_2] = { 298189,		1000 },
 	[MODE_HS_RB][UFS_HS_G2][UFS_LANE_2] = { 596378,		1000 },
 	[MODE_HS_RB][UFS_HS_G3][UFS_LANE_2] = { 1492582,	204800 },
 	[MODE_HS_RB][UFS_HS_G4][UFS_LANE_2] = { 2915200,	409600 },
+	[MODE_HS_RB][UFS_HS_G5][UFS_LANE_2] = { 5836800,	819200 },
 	[MODE_MAX][0][0]		    = { 7643136,	307200 },
 };
 
-static struct ufs_qcom_host *ufs_qcom_hosts[MAX_UFS_QCOM_HOSTS];
-
 static void ufs_qcom_get_default_testbus_cfg(struct ufs_qcom_host *host);
 static int ufs_qcom_set_core_clk_ctrl(struct ufs_hba *hba, bool is_scale_up);
 
@@ -194,52 +198,12 @@ static inline int ufs_qcom_ice_suspend(struct ufs_qcom_host *host)
 }
 #endif
 
-static int ufs_qcom_host_clk_get(struct device *dev,
-		const char *name, struct clk **clk_out, bool optional)
-{
-	struct clk *clk;
-	int err = 0;
-
-	clk = devm_clk_get(dev, name);
-	if (!IS_ERR(clk)) {
-		*clk_out = clk;
-		return 0;
-	}
-
-	err = PTR_ERR(clk);
-
-	if (optional && err == -ENOENT) {
-		*clk_out = NULL;
-		return 0;
-	}
-
-	if (err != -EPROBE_DEFER)
-		dev_err(dev, "failed to get %s err %d\n", name, err);
-
-	return err;
-}
-
-static int ufs_qcom_host_clk_enable(struct device *dev,
-		const char *name, struct clk *clk)
-{
-	int err = 0;
-
-	err = clk_prepare_enable(clk);
-	if (err)
-		dev_err(dev, "%s: %s enable failed %d\n", __func__, name, err);
-
-	return err;
-}
-
 static void ufs_qcom_disable_lane_clks(struct ufs_qcom_host *host)
 {
 	if (!host->is_lane_clks_enabled)
 		return;
 
-	clk_disable_unprepare(host->tx_l1_sync_clk);
-	clk_disable_unprepare(host->tx_l0_sync_clk);
-	clk_disable_unprepare(host->rx_l1_sync_clk);
-	clk_disable_unprepare(host->rx_l0_sync_clk);
+	clk_bulk_disable_unprepare(host->num_clks, host->clks);
 
 	host->is_lane_clks_enabled = false;
 }
@@ -247,73 +211,29 @@ static void ufs_qcom_disable_lane_clks(struct ufs_qcom_host *host)
 static int ufs_qcom_enable_lane_clks(struct ufs_qcom_host *host)
 {
 	int err;
-	struct device *dev = host->hba->dev;
-
-	if (host->is_lane_clks_enabled)
-		return 0;
 
-	err = ufs_qcom_host_clk_enable(dev, "rx_lane0_sync_clk",
-		host->rx_l0_sync_clk);
+	err = clk_bulk_prepare_enable(host->num_clks, host->clks);
 	if (err)
 		return err;
 
-	err = ufs_qcom_host_clk_enable(dev, "tx_lane0_sync_clk",
-		host->tx_l0_sync_clk);
-	if (err)
-		goto disable_rx_l0;
-
-	err = ufs_qcom_host_clk_enable(dev, "rx_lane1_sync_clk",
-			host->rx_l1_sync_clk);
-	if (err)
-		goto disable_tx_l0;
-
-	err = ufs_qcom_host_clk_enable(dev, "tx_lane1_sync_clk",
-			host->tx_l1_sync_clk);
-	if (err)
-		goto disable_rx_l1;
-
 	host->is_lane_clks_enabled = true;
 
 	return 0;
-
-disable_rx_l1:
-	clk_disable_unprepare(host->rx_l1_sync_clk);
-disable_tx_l0:
-	clk_disable_unprepare(host->tx_l0_sync_clk);
-disable_rx_l0:
-	clk_disable_unprepare(host->rx_l0_sync_clk);
-
-	return err;
 }
 
 static int ufs_qcom_init_lane_clks(struct ufs_qcom_host *host)
 {
-	int err = 0;
+	int err;
 	struct device *dev = host->hba->dev;
 
 	if (has_acpi_companion(dev))
 		return 0;
 
-	err = ufs_qcom_host_clk_get(dev, "rx_lane0_sync_clk",
-					&host->rx_l0_sync_clk, false);
-	if (err)
+	err = devm_clk_bulk_get_all(dev, &host->clks);
+	if (err <= 0)
 		return err;
 
-	err = ufs_qcom_host_clk_get(dev, "tx_lane0_sync_clk",
-					&host->tx_l0_sync_clk, false);
-	if (err)
-		return err;
-
-	/* In case of single lane per direction, don't read lane1 clocks */
-	if (host->hba->lanes_per_direction > 1) {
-		err = ufs_qcom_host_clk_get(dev, "rx_lane1_sync_clk",
-			&host->rx_l1_sync_clk, false);
-		if (err)
-			return err;
-
-		err = ufs_qcom_host_clk_get(dev, "tx_lane1_sync_clk",
-			&host->tx_l1_sync_clk, true);
-	}
+	host->num_clks = err;
 
 	return 0;
 }
@@ -321,7 +241,7 @@ static int ufs_qcom_init_lane_clks(struct ufs_qcom_host *host)
 static int ufs_qcom_check_hibern8(struct ufs_hba *hba)
 {
 	int err;
-	u32 tx_fsm_val = 0;
+	u32 tx_fsm_val;
 	unsigned long timeout = jiffies + msecs_to_jiffies(HBRN8_POLL_TOUT_MS);
 
 	do {
@@ -360,9 +280,7 @@ static int ufs_qcom_check_hibern8(struct ufs_hba *hba)
 
 static void ufs_qcom_select_unipro_mode(struct ufs_qcom_host *host)
 {
-	ufshcd_rmwl(host->hba, QUNIPRO_SEL,
-		   ufs_qcom_cap_qunipro(host) ? QUNIPRO_SEL : 0,
-		   REG_UFS_CFG1);
+	ufshcd_rmwl(host->hba, QUNIPRO_SEL, QUNIPRO_SEL, REG_UFS_CFG1);
 
 	if (host->hw_ver.major >= 0x05)
 		ufshcd_rmwl(host->hba, QUNIPRO_G4_SEL, 0, REG_UFS_CFG0);
@@ -376,18 +294,15 @@ static void ufs_qcom_select_unipro_mode(struct ufs_qcom_host *host)
  */
 static int ufs_qcom_host_reset(struct ufs_hba *hba)
 {
-	int ret = 0;
+	int ret;
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-	bool reenable_intr = false;
+	bool reenable_intr;
 
-	if (!host->core_reset) {
-		dev_warn(hba->dev, "%s: reset control not set\n", __func__);
+	if (!host->core_reset)
 		return 0;
-	}
 
 	reenable_intr = hba->is_irq_enabled;
-	disable_irq(hba->irq);
-	hba->is_irq_enabled = false;
+	ufshcd_disable_irq(hba);
 
 	ret = reset_control_assert(host->core_reset);
 	if (ret) {
@@ -404,16 +319,16 @@ static int ufs_qcom_host_reset(struct ufs_hba *hba)
 	usleep_range(200, 210);
 
 	ret = reset_control_deassert(host->core_reset);
-	if (ret)
+	if (ret) {
 		dev_err(hba->dev, "%s: core_reset deassert failed, err = %d\n",
 				 __func__, ret);
+		return ret;
+	}
 
 	usleep_range(1000, 1100);
 
-	if (reenable_intr) {
-		enable_irq(hba->irq);
-		hba->is_irq_enabled = true;
-	}
+	if (reenable_intr)
+		ufshcd_enable_irq(hba);
 
 	return 0;
 }
@@ -422,18 +337,8 @@ static u32 ufs_qcom_get_hs_gear(struct ufs_hba *hba)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 
-	if (host->hw_ver.major == 0x1) {
-		/*
-		 * HS-G3 operations may not reliably work on legacy QCOM
-		 * UFS host controller hardware even though capability
-		 * exchange during link startup phase may end up
-		 * negotiating maximum supported gear as G3.
-		 * Hence downgrade the maximum supported gear to HS-G2.
-		 */
-		return UFS_HS_G2;
-	} else if (host->hw_ver.major >= 0x4) {
+	if (host->hw_ver.major >= 0x4)
 		return UFS_QCOM_MAX_GEAR(ufshcd_readl(hba, REG_UFS_PARAM0));
-	}
 
 	/* Default is HS-G3 */
 	return UFS_HS_G3;
@@ -442,14 +347,29 @@ static u32 ufs_qcom_get_hs_gear(struct ufs_hba *hba)
 static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
+	struct ufs_host_params *host_params = &host->host_params;
 	struct phy *phy = host->generic_phy;
+	enum phy_mode mode;
 	int ret;
 
+	/*
+	 * HW ver 5 can only support up to HS-G5 Rate-A due to HW limitations.
+	 * If the HS-G5 PHY gear is used, update host_params->hs_rate to Rate-A,
+	 * so that the subsequent power mode change shall stick to Rate-A.
+	 */
+	if (host->hw_ver.major == 0x5) {
+		if (host->phy_gear == UFS_HS_G5)
+			host_params->hs_rate = PA_HS_MODE_A;
+		else
+			host_params->hs_rate = PA_HS_MODE_B;
+	}
+
+	mode = host_params->hs_rate == PA_HS_MODE_B ? PHY_MODE_UFS_HS_B : PHY_MODE_UFS_HS_A;
+
 	/* Reset UFS Host Controller and PHY */
 	ret = ufs_qcom_host_reset(hba);
 	if (ret)
-		dev_warn(hba->dev, "%s: host reset returned %d\n",
-				  __func__, ret);
+		return ret;
 
 	/* phy initialization - calibrate the phy */
 	ret = phy_init(phy);
@@ -459,7 +379,9 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
 		return ret;
 	}
 
-	phy_set_mode_ext(phy, PHY_MODE_UFS_HS_B, host->phy_gear);
+	ret = phy_set_mode_ext(phy, mode, host->phy_gear);
+	if (ret)
+		goto out_disable_phy;
 
 	/* power on phy - start serdes and phy's power and clocks */
 	ret = phy_power_on(phy);
@@ -489,9 +411,8 @@ out_disable_phy:
  */
 static void ufs_qcom_enable_hw_clk_gating(struct ufs_hba *hba)
 {
-	ufshcd_writel(hba,
-		ufshcd_readl(hba, REG_UFS_CFG2) | REG_UFS_CFG2_CGC_EN_ALL,
-		REG_UFS_CFG2);
+	ufshcd_rmwl(hba, REG_UFS_CFG2_CGC_EN_ALL, REG_UFS_CFG2_CGC_EN_ALL,
+		    REG_UFS_CFG2);
 
 	/* Ensure that HW clock gating is enabled before next operations */
 	mb();
@@ -501,11 +422,14 @@ static int ufs_qcom_hce_enable_notify(struct ufs_hba *hba,
 				      enum ufs_notify_change_status status)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-	int err = 0;
+	int err;
 
 	switch (status) {
 	case PRE_CHANGE:
-		ufs_qcom_power_up_sequence(hba);
+		err = ufs_qcom_power_up_sequence(hba);
+		if (err)
+			return err;
+
 		/*
 		 * The PHY PLL output is the source of tx/rx lane symbol
 		 * clocks, hence, enable the lane clocks only after PHY
@@ -544,41 +468,16 @@ static int ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear,
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 	struct ufs_clk_info *clki;
-	u32 core_clk_period_in_ns;
-	u32 tx_clk_cycles_per_us = 0;
 	unsigned long core_clk_rate = 0;
-	u32 core_clk_cycles_per_us = 0;
-
-	static u32 pwm_fr_table[][2] = {
-		{UFS_PWM_G1, 0x1},
-		{UFS_PWM_G2, 0x1},
-		{UFS_PWM_G3, 0x1},
-		{UFS_PWM_G4, 0x1},
-	};
-
-	static u32 hs_fr_table_rA[][2] = {
-		{UFS_HS_G1, 0x1F},
-		{UFS_HS_G2, 0x3e},
-		{UFS_HS_G3, 0x7D},
-	};
-
-	static u32 hs_fr_table_rB[][2] = {
-		{UFS_HS_G1, 0x24},
-		{UFS_HS_G2, 0x49},
-		{UFS_HS_G3, 0x92},
-	};
+	u32 core_clk_cycles_per_us;
 
 	/*
-	 * The Qunipro controller does not use following registers:
-	 * SYS1CLK_1US_REG, TX_SYMBOL_CLK_1US_REG, CLK_NS_REG &
-	 * UFS_REG_PA_LINK_STARTUP_TIMER.
-	 * However UTP controller uses SYS1CLK_1US_REG register for Interrupt
+	 * UTP controller uses SYS1CLK_1US_REG register for Interrupt
 	 * Aggregation logic.
 	 * It is mandatory to write SYS1CLK_1US_REG register on UFS host
 	 * controller V4.0.0 onwards.
 	 */
-	if (host->hw_ver.major < 4 && ufs_qcom_cap_qunipro(host) &&
-	    !ufshcd_is_intr_aggr_allowed(hba))
+	if (host->hw_ver.major < 4 && !ufshcd_is_intr_aggr_allowed(hba))
 		return 0;
 
 	if (gear == 0) {
@@ -611,79 +510,6 @@ static int ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear,
 		mb();
 	}
 
-	if (ufs_qcom_cap_qunipro(host))
-		return 0;
-
-	core_clk_period_in_ns = NSEC_PER_SEC / core_clk_rate;
-	core_clk_period_in_ns <<= OFFSET_CLK_NS_REG;
-	core_clk_period_in_ns &= MASK_CLK_NS_REG;
-
-	switch (hs) {
-	case FASTAUTO_MODE:
-	case FAST_MODE:
-		if (rate == PA_HS_MODE_A) {
-			if (gear > ARRAY_SIZE(hs_fr_table_rA)) {
-				dev_err(hba->dev,
-					"%s: index %d exceeds table size %zu\n",
-					__func__, gear,
-					ARRAY_SIZE(hs_fr_table_rA));
-				return -EINVAL;
-			}
-			tx_clk_cycles_per_us = hs_fr_table_rA[gear-1][1];
-		} else if (rate == PA_HS_MODE_B) {
-			if (gear > ARRAY_SIZE(hs_fr_table_rB)) {
-				dev_err(hba->dev,
-					"%s: index %d exceeds table size %zu\n",
-					__func__, gear,
-					ARRAY_SIZE(hs_fr_table_rB));
-				return -EINVAL;
-			}
-			tx_clk_cycles_per_us = hs_fr_table_rB[gear-1][1];
-		} else {
-			dev_err(hba->dev, "%s: invalid rate = %d\n",
-				__func__, rate);
-			return -EINVAL;
-		}
-		break;
-	case SLOWAUTO_MODE:
-	case SLOW_MODE:
-		if (gear > ARRAY_SIZE(pwm_fr_table)) {
-			dev_err(hba->dev,
-					"%s: index %d exceeds table size %zu\n",
-					__func__, gear,
-					ARRAY_SIZE(pwm_fr_table));
-			return -EINVAL;
-		}
-		tx_clk_cycles_per_us = pwm_fr_table[gear-1][1];
-		break;
-	case UNCHANGED:
-	default:
-		dev_err(hba->dev, "%s: invalid mode = %d\n", __func__, hs);
-		return -EINVAL;
-	}
-
-	if (ufshcd_readl(hba, REG_UFS_TX_SYMBOL_CLK_NS_US) !=
-	    (core_clk_period_in_ns | tx_clk_cycles_per_us)) {
-		/* this register 2 fields shall be written at once */
-		ufshcd_writel(hba, core_clk_period_in_ns | tx_clk_cycles_per_us,
-			      REG_UFS_TX_SYMBOL_CLK_NS_US);
-		/*
-		 * make sure above write gets applied before we return from
-		 * this function.
-		 */
-		mb();
-	}
-
-	if (update_link_startup_timer && host->hw_ver.major != 0x5) {
-		ufshcd_writel(hba, ((core_clk_rate / MSEC_PER_SEC) * 100),
-			      REG_UFS_CFG0);
-		/*
-		 * make sure that this configuration is applied before
-		 * we return
-		 */
-		mb();
-	}
-
 	return 0;
 }
 
@@ -691,7 +517,6 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba *hba,
 					enum ufs_notify_change_status status)
 {
 	int err = 0;
-	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 
 	switch (status) {
 	case PRE_CHANGE:
@@ -702,11 +527,9 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba *hba,
 			return -EINVAL;
 		}
 
-		if (ufs_qcom_cap_qunipro(host)) {
-			err = ufs_qcom_set_core_clk_ctrl(hba, true);
-			if (err)
-				dev_err(hba->dev, "cfg core clk ctrl failed\n");
-		}
+		err = ufs_qcom_set_core_clk_ctrl(hba, true);
+		if (err)
+			dev_err(hba->dev, "cfg core clk ctrl failed\n");
 		/*
 		 * Some UFS devices (and may be host) have issues if LCC is
 		 * enabled. So we are setting PA_Local_TX_LCC_Enable to 0
@@ -898,7 +721,7 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
 				struct ufs_pa_layer_attr *dev_req_params)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-	struct ufs_dev_params ufs_qcom_cap;
+	struct ufs_host_params *host_params = &host->host_params;
 	int ret = 0;
 
 	if (!dev_req_params) {
@@ -908,15 +731,7 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
 
 	switch (status) {
 	case PRE_CHANGE:
-		ufshcd_init_pwr_dev_param(&ufs_qcom_cap);
-		ufs_qcom_cap.hs_rate = UFS_QCOM_LIMIT_HS_RATE;
-
-		/* This driver only supports symmetic gear setting i.e., hs_tx_gear == hs_rx_gear */
-		ufs_qcom_cap.hs_tx_gear = ufs_qcom_cap.hs_rx_gear = ufs_qcom_get_hs_gear(hba);
-
-		ret = ufshcd_get_pwr_dev_param(&ufs_qcom_cap,
-					       dev_max_params,
-					       dev_req_params);
+		ret = ufshcd_negotiate_pwr_params(host_params, dev_max_params, dev_req_params);
 		if (ret) {
 			dev_err(hba->dev, "%s: failed to determine capabilities\n",
 					__func__);
@@ -924,12 +739,22 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
 		}
 
 		/*
-		 * Update phy_gear only when the gears are scaled to a higher value. This is
-		 * because, the PHY gear settings are backwards compatible and we only need to
-		 * change the PHY gear settings while scaling to higher gears.
+		 * During UFS driver probe, always update the PHY gear to match the negotiated
+		 * gear, so that, if quirk UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH is enabled,
+		 * the second init can program the optimal PHY settings. This allows one to start
+		 * the first init with either the minimum or the maximum support gear.
 		 */
-		if (dev_req_params->gear_tx > host->phy_gear)
-			host->phy_gear = dev_req_params->gear_tx;
+		if (hba->ufshcd_state == UFSHCD_STATE_RESET) {
+			/*
+			 * Skip REINIT if the negotiated gear matches with the
+			 * initial phy_gear. Otherwise, update the phy_gear to
+			 * program the optimal gear setting during REINIT.
+			 */
+			if (host->phy_gear == dev_req_params->gear_tx)
+				hba->quirks &= ~UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH;
+			else
+				host->phy_gear = dev_req_params->gear_tx;
+		}
 
 		/* enable the device ref clock before changing to HS mode */
 		if (!ufshcd_is_hs_mode(&hba->pwr_info) &&
@@ -1005,12 +830,7 @@ static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
 
 static u32 ufs_qcom_get_ufs_hci_version(struct ufs_hba *hba)
 {
-	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-
-	if (host->hw_ver.major == 0x1)
-		return ufshci_version(1, 1);
-	else
-		return ufshci_version(2, 0);
+	return ufshci_version(2, 0);
 }
 
 /**
@@ -1026,46 +846,69 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 
-	if (host->hw_ver.major == 0x01) {
-		hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS
-			    | UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP
-			    | UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE;
+	if (host->hw_ver.major == 0x2)
+		hba->quirks |= UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION;
 
-		if (host->hw_ver.minor == 0x0001 && host->hw_ver.step == 0x0001)
-			hba->quirks |= UFSHCD_QUIRK_BROKEN_INTR_AGGR;
+	if (host->hw_ver.major > 0x3)
+		hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH;
+}
 
-		hba->quirks |= UFSHCD_QUIRK_BROKEN_LCC;
-	}
+static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host)
+{
+	struct ufs_host_params *host_params = &host->host_params;
+	u32 val, dev_major;
 
-	if (host->hw_ver.major == 0x2) {
-		hba->quirks |= UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION;
+	host->phy_gear = host_params->hs_tx_gear;
 
-		if (!ufs_qcom_cap_qunipro(host))
-			/* Legacy UniPro mode still need following quirks */
-			hba->quirks |= (UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS
-				| UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE
-				| UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP);
-	}
+	if (host->hw_ver.major < 0x4) {
+		/*
+		 * For controllers whose major HW version is < 4, power up the
+		 * PHY using minimum supported gear (UFS_HS_G2). Switching to
+		 * max gear will be performed during reinit if supported.
+		 * For newer controllers, whose major HW version is >= 4, power
+		 * up the PHY using max supported gear.
+		 */
+		host->phy_gear = UFS_HS_G2;
+	} else if (host->hw_ver.major >= 0x5) {
+		val = ufshcd_readl(host->hba, REG_UFS_DEBUG_SPARE_CFG);
+		dev_major = FIELD_GET(UFS_DEV_VER_MAJOR_MASK, val);
 
-	if (host->hw_ver.major > 0x3)
-		hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH;
+		/*
+		 * Since the UFS device version is populated, let's remove the
+		 * REINIT quirk as the negotiated gear won't change during boot.
+		 * So there is no need to do reinit.
+		 */
+		if (dev_major != 0x0)
+			host->hba->quirks &= ~UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH;
+
+		/*
+		 * For UFS 3.1 device and older, power up the PHY using HS-G4
+		 * PHY gear to save power.
+		 */
+		if (dev_major > 0x0 && dev_major < 0x4)
+			host->phy_gear = UFS_HS_G4;
+	}
 }
 
-static void ufs_qcom_set_caps(struct ufs_hba *hba)
+static void ufs_qcom_set_host_params(struct ufs_hba *hba)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
+	struct ufs_host_params *host_params = &host->host_params;
+
+	ufshcd_init_host_params(host_params);
+
+	/* This driver only supports symmetic gear setting i.e., hs_tx_gear == hs_rx_gear */
+	host_params->hs_tx_gear = host_params->hs_rx_gear = ufs_qcom_get_hs_gear(hba);
+}
 
+static void ufs_qcom_set_caps(struct ufs_hba *hba)
+{
 	hba->caps |= UFSHCD_CAP_CLK_GATING | UFSHCD_CAP_HIBERN8_WITH_CLK_GATING;
 	hba->caps |= UFSHCD_CAP_CLK_SCALING | UFSHCD_CAP_WB_WITH_CLK_SCALING;
 	hba->caps |= UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
 	hba->caps |= UFSHCD_CAP_WB_EN;
 	hba->caps |= UFSHCD_CAP_AGGR_POWER_COLLAPSE;
 	hba->caps |= UFSHCD_CAP_RPM_AUTOSUSPEND;
-
-	if (host->hw_ver.major >= 0x2) {
-		host->caps = UFS_QCOM_CAP_QUNIPRO |
-			     UFS_QCOM_CAP_RETAIN_SEC_CFG_AFTER_PWR_COLLAPSE;
-	}
 }
 
 /**
@@ -1188,16 +1031,12 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 {
 	int err;
 	struct device *dev = hba->dev;
-	struct platform_device *pdev = to_platform_device(dev);
 	struct ufs_qcom_host *host;
-	struct resource *res;
 	struct ufs_clk_info *clki;
 
 	host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL);
-	if (!host) {
-		dev_err(dev, "%s: no memory for qcom ufs host\n", __func__);
+	if (!host)
 		return -ENOMEM;
-	}
 
 	/* Make a two way bind between the qcom host and the hba */
 	host->hba = hba;
@@ -1235,34 +1074,16 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 	host->device_reset = devm_gpiod_get_optional(dev, "reset",
 						     GPIOD_OUT_HIGH);
 	if (IS_ERR(host->device_reset)) {
-		err = PTR_ERR(host->device_reset);
-		if (err != -EPROBE_DEFER)
-			dev_err(dev, "failed to acquire reset gpio: %d\n", err);
+		err = dev_err_probe(dev, PTR_ERR(host->device_reset),
+				    "Failed to acquire device reset gpio\n");
 		goto out_variant_clear;
 	}
 
 	ufs_qcom_get_controller_revision(hba, &host->hw_ver.major,
 		&host->hw_ver.minor, &host->hw_ver.step);
 
-	/*
-	 * for newer controllers, device reference clock control bit has
-	 * moved inside UFS controller register address space itself.
-	 */
-	if (host->hw_ver.major >= 0x02) {
-		host->dev_ref_clk_ctrl_mmio = hba->mmio_base + REG_UFS_CFG1;
-		host->dev_ref_clk_en_mask = BIT(26);
-	} else {
-		/* "dev_ref_clk_ctrl_mem" is optional resource */
-		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-						   "dev_ref_clk_ctrl_mem");
-		if (res) {
-			host->dev_ref_clk_ctrl_mmio =
-					devm_ioremap_resource(dev, res);
-			if (IS_ERR(host->dev_ref_clk_ctrl_mmio))
-				host->dev_ref_clk_ctrl_mmio = NULL;
-			host->dev_ref_clk_en_mask = BIT(5);
-		}
-	}
+	host->dev_ref_clk_ctrl_mmio = hba->mmio_base + REG_UFS_CFG1;
+	host->dev_ref_clk_en_mask = BIT(26);
 
 	list_for_each_entry(clki, &hba->clk_list_head, list) {
 		if (!strcmp(clki->name, "core_clk_unipro"))
@@ -1275,6 +1096,8 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 
 	ufs_qcom_set_caps(hba);
 	ufs_qcom_advertise_quirks(hba);
+	ufs_qcom_set_host_params(hba);
+	ufs_qcom_set_phy_gear(host);
 
 	err = ufs_qcom_ice_init(host);
 	if (err)
@@ -1282,9 +1105,6 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 
 	ufs_qcom_setup_clocks(hba, true, POST_CHANGE);
 
-	if (hba->dev->id < MAX_UFS_QCOM_HOSTS)
-		ufs_qcom_hosts[hba->dev->id] = host;
-
 	ufs_qcom_get_default_testbus_cfg(host);
 	err = ufs_qcom_testbus_config(host);
 	if (err)
@@ -1292,12 +1112,6 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 		dev_warn(dev, "%s: failed to configure the testbus %d\n",
 				__func__, err);
 
-	/*
-	 * Power up the PHY using the minimum supported gear (UFS_HS_G2).
-	 * Switching to max gear will be performed during reinit if supported.
-	 */
-	host->phy_gear = UFS_HS_G2;
-
 	return 0;
 
 out_variant_clear:
@@ -1391,7 +1205,7 @@ static int ufs_qcom_set_core_clk_ctrl(struct ufs_hba *hba, bool is_scale_up)
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 	struct list_head *head = &hba->clk_list_head;
 	struct ufs_clk_info *clki;
-	u32 cycles_in_1us;
+	u32 cycles_in_1us = 0;
 	u32 core_clk_ctrl_reg;
 	int err;
 
@@ -1446,9 +1260,6 @@ static int ufs_qcom_clk_scale_up_pre_change(struct ufs_hba *hba)
 	struct ufs_pa_layer_attr *attr = &host->dev_req_params;
 	int ret;
 
-	if (!ufs_qcom_cap_qunipro(host))
-		return 0;
-
 	ret = ufs_qcom_cfg_timers(hba, attr->gear_rx, attr->pwr_rx,
 				  attr->hs_rate, false, true);
 	if (ret) {
@@ -1466,13 +1277,9 @@ static int ufs_qcom_clk_scale_up_post_change(struct ufs_hba *hba)
 
 static int ufs_qcom_clk_scale_down_pre_change(struct ufs_hba *hba)
 {
-	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 	int err;
 	u32 core_clk_ctrl_reg;
 
-	if (!ufs_qcom_cap_qunipro(host))
-		return 0;
-
 	err = ufshcd_dme_get(hba,
 			    UIC_ARG_MIB(DME_VS_CORE_CLK_CTRL),
 			    &core_clk_ctrl_reg);
@@ -1491,11 +1298,6 @@ static int ufs_qcom_clk_scale_down_pre_change(struct ufs_hba *hba)
 
 static int ufs_qcom_clk_scale_down_post_change(struct ufs_hba *hba)
 {
-	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-
-	if (!ufs_qcom_cap_qunipro(host))
-		return 0;
-
 	/* set unipro core clock attributes and clear clock divider */
 	return ufs_qcom_set_core_clk_ctrl(hba, false);
 }
@@ -1504,7 +1306,7 @@ static int ufs_qcom_clk_scale_notify(struct ufs_hba *hba,
 		bool scale_up, enum ufs_notify_change_status status)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-	int err = 0;
+	int err;
 
 	/* check the host controller state before sending hibern8 cmd */
 	if (!ufshcd_is_hba_active(hba))
@@ -1777,7 +1579,7 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
 	struct platform_device *pdev = to_platform_device(hba->dev);
 	struct ufshcd_res_info *res;
 	struct resource *res_mem, *res_mcq;
-	int i, ret = 0;
+	int i, ret;
 
 	memcpy(hba->res, ufs_res_info, sizeof(ufs_res_info));
 
@@ -1931,7 +1733,7 @@ static int ufs_qcom_config_esi(struct ufs_hba *hba)
 					     ufs_qcom_write_msi_msg);
 	if (ret) {
 		dev_err(hba->dev, "Failed to request Platform MSI %d\n", ret);
-		goto out;
+		return ret;
 	}
 
 	msi_lock_descs(hba->dev);
@@ -1960,17 +1762,13 @@ static int ufs_qcom_config_esi(struct ufs_hba *hba)
 		platform_msi_domain_free_irqs(hba->dev);
 	} else {
 		if (host->hw_ver.major == 6 && host->hw_ver.minor == 0 &&
-		    host->hw_ver.step == 0) {
-			ufshcd_writel(hba,
-				      ufshcd_readl(hba, REG_UFS_CFG3) | 0x1F000,
-				      REG_UFS_CFG3);
-		}
+		    host->hw_ver.step == 0)
+			ufshcd_rmwl(hba, ESI_VEC_MASK,
+				    FIELD_PREP(ESI_VEC_MASK, MAX_ESI_VEC - 1),
+				    REG_UFS_CFG3);
 		ufshcd_mcq_enable_esi(hba);
-	}
-
-out:
-	if (!ret)
 		host->esi_enabled = true;
+	}
 
 	return ret;
 }