Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c
index 69c9284..bf94a52 100644
--- a/drivers/phy/qualcomm/phy-qcom-qusb2.c
+++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c
@@ -152,6 +152,31 @@
 	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_PWR_CTRL, 0x00),
 };
 
+static const unsigned int msm8998_regs_layout[] = {
+	[QUSB2PHY_PLL_CORE_INPUT_OVERRIDE] = 0xa8,
+	[QUSB2PHY_PLL_STATUS]              = 0x1a0,
+	[QUSB2PHY_PORT_TUNE1]              = 0x23c,
+	[QUSB2PHY_PORT_TUNE2]              = 0x240,
+	[QUSB2PHY_PORT_TUNE3]              = 0x244,
+	[QUSB2PHY_PORT_TUNE4]              = 0x248,
+	[QUSB2PHY_PORT_TEST1]              = 0x24c,
+	[QUSB2PHY_PORT_TEST2]              = 0x250,
+	[QUSB2PHY_PORT_POWERDOWN]          = 0x210,
+	[QUSB2PHY_INTR_CTRL]               = 0x22c,
+};
+
+static const struct qusb2_phy_init_tbl msm8998_init_tbl[] = {
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_ANALOG_CONTROLS_TWO, 0x13),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_CLOCK_INVERTERS, 0x7c),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_CMODE, 0x80),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_LOCK_DELAY, 0x0a),
+
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE1, 0xa5),
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE2, 0x09),
+
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_DIGITAL_TIMERS_TWO, 0x19),
+};
+
 static const unsigned int sdm845_regs_layout[] = {
 	[QUSB2PHY_PLL_CORE_INPUT_OVERRIDE] = 0xa8,
 	[QUSB2PHY_PLL_STATUS]		= 0x1a0,
@@ -221,6 +246,18 @@
 	.autoresume_en	 = BIT(3),
 };
 
+static const struct qusb2_phy_cfg msm8998_phy_cfg = {
+	.tbl            = msm8998_init_tbl,
+	.tbl_num        = ARRAY_SIZE(msm8998_init_tbl),
+	.regs           = msm8998_regs_layout,
+
+	.disable_ctrl   = POWER_DOWN,
+	.mask_core_ready = CORE_READY_STATUS,
+	.has_pll_override = true,
+	.autoresume_en   = BIT(0),
+	.update_tune1_with_efuse = true,
+};
+
 static const struct qusb2_phy_cfg sdm845_phy_cfg = {
 	.tbl		= sdm845_init_tbl,
 	.tbl_num	= ARRAY_SIZE(sdm845_init_tbl),
@@ -425,7 +462,8 @@
 				 HSTX_TRIM_MASK);
 }
 
-static int qusb2_phy_set_mode(struct phy *phy, enum phy_mode mode)
+static int qusb2_phy_set_mode(struct phy *phy,
+			      enum phy_mode mode, int submode)
 {
 	struct qusb2_phy *qphy = phy_get_drvdata(phy);
 
@@ -526,7 +564,7 @@
 	}
 
 	if (!qphy->has_se_clk_scheme) {
-		clk_prepare_enable(qphy->ref_clk);
+		ret = clk_prepare_enable(qphy->ref_clk);
 		if (ret) {
 			dev_err(dev, "failed to enable ref clk, %d\n", ret);
 			goto disable_ahb_clk;
@@ -733,6 +771,9 @@
 		.compatible	= "qcom,msm8996-qusb2-phy",
 		.data		= &msm8996_phy_cfg,
 	}, {
+		.compatible	= "qcom,msm8998-qusb2-phy",
+		.data		= &msm8998_phy_cfg,
+	}, {
 		.compatible	= "qcom,sdm845-qusb2-phy",
 		.data		= &sdm845_phy_cfg,
 	},
@@ -781,14 +822,9 @@
 		return ret;
 	}
 
-	qphy->iface_clk = devm_clk_get(dev, "iface");
-	if (IS_ERR(qphy->iface_clk)) {
-		ret = PTR_ERR(qphy->iface_clk);
-		if (ret == -EPROBE_DEFER)
-			return ret;
-		qphy->iface_clk = NULL;
-		dev_dbg(dev, "failed to get iface clk, %d\n", ret);
-	}
+	qphy->iface_clk = devm_clk_get_optional(dev, "iface");
+	if (IS_ERR(qphy->iface_clk))
+		return PTR_ERR(qphy->iface_clk);
 
 	qphy->phy_reset = devm_reset_control_get_by_index(&pdev->dev, 0);
 	if (IS_ERR(qphy->phy_reset)) {
@@ -802,7 +838,9 @@
 
 	ret = devm_regulator_bulk_get(dev, num, qphy->vregs);
 	if (ret) {
-		dev_err(dev, "failed to get regulator supplies\n");
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "failed to get regulator supplies: %d\n",
+				ret);
 		return ret;
 	}