[PATCH v3 3/7] ACPI: APD: Add a fmw property clk-name

From: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
To: <sboyd@kernel.org>, <rafael@kernel.org>, <linux-clk@vger.kernel.org>
Cc: <Vijendar.Mukunda@amd.com>, <Alexander.Deucher@amd.com>,
	<Basavaraj.Hiregoudar@amd.com>, <Sunil-kumar.Dommati@amd.com>,
	<Mario.Limonciello@amd.com>,
	Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>,
	Len Brown <lenb@kernel.org>,
	"open list:ACPI" <linux-acpi@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: [PATCH v3 3/7] ACPI: APD: Add a fmw property clk-name
Date: Thu, 25 Nov 2021 11:50:32 +0530	[thread overview]
Message-ID: <20211125062036.1185994-4-AjitKumar.Pandey@amd.com> (raw)
In-Reply-To: <20211125062036.1185994-1-AjitKumar.Pandey@amd.com>

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

