From 8edae58bc1a7ca2ecae41ee66c77802eb82b5194 Mon Sep 17 00:00:00 2001
From: Luben Tuikov <luben.tuikov@amd.com>
Date: Thu, 27 Jan 2022 13:49:30 -0500
Subject: drm/amd: Enable FRU EEPROM for Sienna Cichlid
Git-commit: 3ed893396b0132fa5a4d3fe3f9ba358678c6dba3
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Enable the FRU EEPROM I2C bus for Sienna Cichlid
server boards, for which it is enabled by checking
the VBIOS version.
Cc: Roy Sun <Roy.Sun@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
index 40180648be38..ce5d5ee336a9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
@@ -46,7 +46,7 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
if (amdgpu_sriov_vf(adev))
return false;
- /* VBIOS is of the format ###-DXXXYY-##. For SKU identification,
+ /* VBIOS is of the format ###-DXXXYYYY-##. For SKU identification,
* we can use just the "DXXX" portion. If there were more models, we
* could convert the 3 characters to a hex integer and use a switch
* for ease/speed/readability. For now, 2 string comparisons are
@@ -65,6 +65,12 @@ static bool is_fru_eeprom_supported(struct amdgpu_device *adev)
case CHIP_ALDEBARAN:
/* All Aldebaran SKUs have the FRU */
return true;
+ case CHIP_SIENNA_CICHLID:
+ if (strnstr(atom_ctx->vbios_version, "D603",
+ sizeof(atom_ctx->vbios_version)))
+ return true;
+ else
+ return false;
default:
return false;
}
--
2.38.1