Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c
index db9b247..28ddc74 100644
--- a/drivers/clk/qcom/common.c
+++ b/drivers/clk/qcom/common.c
@@ -191,6 +191,22 @@
 }
 EXPORT_SYMBOL_GPL(qcom_cc_register_sleep_clk);
 
+/* Drop 'protected-clocks' from the list of clocks to register */
+static void qcom_cc_drop_protected(struct device *dev, struct qcom_cc *cc)
+{
+	struct device_node *np = dev->of_node;
+	struct property *prop;
+	const __be32 *p;
+	u32 i;
+
+	of_property_for_each_u32(np, "protected-clocks", prop, p, i) {
+		if (i >= cc->num_rclks)
+			continue;
+
+		cc->rclks[i] = NULL;
+	}
+}
+
 static struct clk_hw *qcom_cc_clk_hw_get(struct of_phandle_args *clkspec,
 					 void *data)
 {
@@ -215,6 +231,8 @@
 	struct gdsc_desc *scd;
 	size_t num_clks = desc->num_clks;
 	struct clk_regmap **rclks = desc->clks;
+	size_t num_clk_hws = desc->num_clk_hws;
+	struct clk_hw **clk_hws = desc->clk_hws;
 
 	cc = devm_kzalloc(dev, sizeof(*cc), GFP_KERNEL);
 	if (!cc)
@@ -251,6 +269,14 @@
 	cc->rclks = rclks;
 	cc->num_rclks = num_clks;
 
+	qcom_cc_drop_protected(dev, cc);
+
+	for (i = 0; i < num_clk_hws; i++) {
+		ret = devm_clk_hw_register(dev, clk_hws[i]);
+		if (ret)
+			return ret;
+	}
+
 	for (i = 0; i < num_clks; i++) {
 		if (!rclks[i])
 			continue;
@@ -280,4 +306,24 @@
 }
 EXPORT_SYMBOL_GPL(qcom_cc_probe);
 
+int qcom_cc_probe_by_index(struct platform_device *pdev, int index,
+			   const struct qcom_cc_desc *desc)
+{
+	struct regmap *regmap;
+	struct resource *res;
+	void __iomem *base;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, index);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return -ENOMEM;
+
+	regmap = devm_regmap_init_mmio(&pdev->dev, base, desc->config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	return qcom_cc_really_probe(pdev, desc, regmap);
+}
+EXPORT_SYMBOL_GPL(qcom_cc_probe_by_index);
+
 MODULE_LICENSE("GPL v2");