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From:   Vijendar Mukunda <Vijendar.Mukunda@amd.com>
To:     <dri-devel@lists.freedesktop.org>, <amd-gfx@lists.freedesktop.org>
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        Daniel Vetter <daniel@ffwll.ch>,
        Kai-Heng Feng <kai.heng.feng@canonical.com>,
        open list <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 2/3] drm/amdgpu: add dmi check for jadeite platform
Date:   Wed, 6 Jul 2022 15:58:49 +0530
Message-ID: <20220706102851.2451164-2-Vijendar.Mukunda@amd.com>
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DMI check is required to distinguish Jadeite platform from
Stoney base variant.
Add DMI check logic for Jadeite platform.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>

---
changes since v1:
    - Modified commit label as drm/amdgpu

 drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 36 +++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index ceda19152c77..4c265ad198b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -29,6 +29,8 @@
 #include <linux/platform_device.h>
 #include <sound/designware_i2s.h>
 #include <sound/pcm.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
 
 #include "amdgpu.h"
 #include "atom.h"
@@ -36,6 +38,7 @@
 
 #include "acp_gfx_if.h"
 
+#define ST_JADEITE 1
 #define ACP_TILE_ON_MASK			0x03
 #define ACP_TILE_OFF_MASK			0x02
 #define ACP_TILE_ON_RETAIN_REG_MASK		0x1f
@@ -85,6 +88,8 @@
 #define ACP_DEVS				4
 #define ACP_SRC_ID				162
 
+static unsigned long acp_machine_id;
+
 enum {
 	ACP_TILE_P1 = 0,
 	ACP_TILE_P2,
@@ -180,6 +185,37 @@ static int acp_genpd_remove_device(struct device *dev, void *data)
 	return 0;
 }
 
+static int acp_quirk_cb(const struct dmi_system_id *id)
+{
+	acp_machine_id = ST_JADEITE;
+	return 1;
+}
+
+static const struct dmi_system_id acp_quirk_table[] = {
+	{
+		.callback = acp_quirk_cb,
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMD"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jadeite"),
+		}
+	},
+	{
+		.callback = acp_quirk_cb,
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "IP3 Technology CO.,Ltd."),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ASN1D"),
+		},
+	},
+	{
+		.callback = acp_quirk_cb,
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Standard"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ASN10"),
+		},
+	},
+	{}
+};
+
 /**
  * acp_hw_init - start and test ACP block
  *
-- 
2.25.1