[AMD Official Use Only - General]
Reviewed-by: Asad Kamal <asad.ka...@amd.com>
Thanks & Regards
Asad
-----Original Message-----
From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> On Behalf Of Lijo Lazar
Sent: Tuesday, April 30, 2024 5:06 PM
To: amd-gfx@lists.freedesktop.org
Cc: Zhang, Hawking <hawking.zh...@amd.com>; Deucher, Alexander
<alexander.deuc...@amd.com>; Koenig, Christian <christian.koe...@amd.com>; Zhu,
James <james....@amd.com>
Subject: [PATCH] drm/amd/amdxcp: Use unique name for partition dev
amdxcp is a platform driver for creating partition devices. libdrm library
identifies a platform device based on 'OF_FULLNAME' or 'MODALIAS'. If two or
more devices have the same platform name, drm library only picks the first
device. Platform driver core uses name of the device to populate 'MODALIAS'.
When 'amdxcp' is used as the base name, only first partition device gets
identified. Assign unique name so that drm library identifies partition devices
separately.
amdxcp doesn't support probe of partitions, it doesn't bother about modaliases.
Signed-off-by: Lijo Lazar <lijo.la...@amd.com>
---
drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c
b/drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c
index 90ddd8371176..b4131053b31b 100644
--- a/drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c
+++ b/drivers/gpu/drm/amd/amdxcp/amdgpu_xcp_drv.c
@@ -50,12 +50,14 @@ int amdgpu_xcp_drm_dev_alloc(struct drm_device **ddev) {
struct platform_device *pdev;
struct xcp_device *pxcp_dev;
+ char dev_name[20];
int ret;
if (pdev_num >= MAX_XCP_PLATFORM_DEVICE)
return -ENODEV;
- pdev = platform_device_register_simple("amdgpu_xcp", pdev_num, NULL, 0);
+ snprintf(dev_name, sizeof(dev_name), "amdgpu_xcp_%d", pdev_num);
+ pdev = platform_device_register_simple(dev_name, -1, NULL, 0);
if (IS_ERR(pdev))
return PTR_ERR(pdev);
--
2.25.1
