[PATCH v4 3/7] ACPI: APD: Add a fmw property clk-name

Ajit Kumar Pandey
2021-11-25T11:07:28Z

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

Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
---
drivers/acpi/acpi_apd.c | 10 ++++++++++
include/linux/platform_data/clk-fch.h | 1 +
2 files changed, 11 insertions(+)

diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index 6913e9712852..2b958b426b03 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -87,6 +87,16 @@ static int fch_misc_setup(struct apd_private_data *pdata)
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));
diff --git a/include/linux/platform_data/clk-fch.h b/include/linux/platform_data/clk-fch.h
index 850ca776156d..11a2a23fd9b2 100644
--- 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 */
--
2.25.1