From: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>

Date: Sun, 12 Dec 2021 23:35:25 +0530

Subject: ACPI: APD: Add a fmw property clk-name

Patch-mainline: v5.17-rc1

Git-commit: 7fdb98e8a768b3ccc05494d3ea4436047f512b9d

References: jsc#PED-1408

Add a new device property to fetch clk-name from firmware.

Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>

Reviewed-by: Mario Limonciello <Mario.Limonciello@amd.com>

Link: https://lore.kernel.org/r/20211212180527.1641362-4-AjitKumar.Pandey@amd.com

Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Acked-by: Lee, Chun-Yi <jlee@suse.com>

---

 drivers/acpi/acpi_apd.c               |   10 ++++++++++

 include/linux/platform_data/clk-fch.h |    1 +

 2 files changed, 11 insertions(+)

--- a/drivers/acpi/acpi_apd.c

+++ b/drivers/acpi/acpi_apd.c

@@ -87,6 +87,16 @@ static int fch_misc_setup(struct apd_pri

 	if (ret < 0)

 		return -ENOENT;

+	if (!acpi_dev_get_property(adev, "clk-name", ACPI_TYPE_STRING, &obj)) {

+		clk_data->name = devm_kzalloc(&adev->dev, obj->string.length,

+					      GFP_KERNEL);

+

+		strcpy(clk_data->name, obj->string.pointer);

+	} else {

+		/* Set default name to mclk if entry missing in firmware */

+		clk_data->name = "mclk";

+	}

+

 	list_for_each_entry(rentry, &resource_list, node) {

 		clk_data->base = devm_ioremap(&adev->dev, rentry->res->start,

 					      resource_size(rentry->res));

--- a/include/linux/platform_data/clk-fch.h

+++ b/include/linux/platform_data/clk-fch.h

@@ -12,6 +12,7 @@

 struct fch_clk_data {

 	void __iomem *base;

+	char *name;

 };

 #endif /* __CLK_FCH_H */