[PATCH] drm/amdgpu: use static ids for ACP platform devs

[Brady Norander]

mfd_add_hotplug_devices() assigns child platform devices with
PLATFORM_DEVID_AUTO, but the ACP machine drivers expect the platform
device names to never change. Use mfd_add_devices() instead and give
each cell a unique id.

Signed-off-by: Brady Norander <bradynoran...@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index deb0785350e8..9c657637d317 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -302,17 +302,19 @@ static int acp_hw_init(struct amdgpu_ip_block *ip_block)
                adev->acp.acp_res[2].end = adev->acp.acp_res[2].start;
 
                adev->acp.acp_cell[0].name = "acp_audio_dma";
+               adev->acp.acp_cell[0].id = 0;
                adev->acp.acp_cell[0].num_resources = 3;
                adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0];
                adev->acp.acp_cell[0].platform_data = &adev->asic_type;
                adev->acp.acp_cell[0].pdata_size = sizeof(adev->asic_type);
 
                adev->acp.acp_cell[1].name = "designware-i2s";
+               adev->acp.acp_cell[1].id = 1;
                adev->acp.acp_cell[1].num_resources = 1;
                adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1];
                adev->acp.acp_cell[1].platform_data = &i2s_pdata[0];
                adev->acp.acp_cell[1].pdata_size = sizeof(struct 
i2s_platform_data);
-               r = mfd_add_hotplug_devices(adev->acp.parent, 
adev->acp.acp_cell, 2);
+               r = mfd_add_devices(adev->acp.parent, 0, adev->acp.acp_cell, 2, 
NULL, 0, NULL);
                if (r)
                        goto failure;
                r = device_for_each_child(adev->acp.parent, 
&adev->acp.acp_genpd->gpd,
@@ -410,30 +412,34 @@ static int acp_hw_init(struct amdgpu_ip_block *ip_block)
                adev->acp.acp_res[4].end = adev->acp.acp_res[4].start;
 
                adev->acp.acp_cell[0].name = "acp_audio_dma";
+               adev->acp.acp_cell[0].id = 0;
                adev->acp.acp_cell[0].num_resources = 5;
                adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0];
                adev->acp.acp_cell[0].platform_data = &adev->asic_type;
                adev->acp.acp_cell[0].pdata_size = sizeof(adev->asic_type);
 
                adev->acp.acp_cell[1].name = "designware-i2s";
+               adev->acp.acp_cell[1].id = 1;
                adev->acp.acp_cell[1].num_resources = 1;
                adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1];
                adev->acp.acp_cell[1].platform_data = &i2s_pdata[0];
                adev->acp.acp_cell[1].pdata_size = sizeof(struct 
i2s_platform_data);
 
                adev->acp.acp_cell[2].name = "designware-i2s";
+               adev->acp.acp_cell[2].id = 2;
                adev->acp.acp_cell[2].num_resources = 1;
                adev->acp.acp_cell[2].resources = &adev->acp.acp_res[2];
                adev->acp.acp_cell[2].platform_data = &i2s_pdata[1];
                adev->acp.acp_cell[2].pdata_size = sizeof(struct 
i2s_platform_data);
 
                adev->acp.acp_cell[3].name = "designware-i2s";
+               adev->acp.acp_cell[3].id = 3;
                adev->acp.acp_cell[3].num_resources = 1;
                adev->acp.acp_cell[3].resources = &adev->acp.acp_res[3];
                adev->acp.acp_cell[3].platform_data = &i2s_pdata[2];
                adev->acp.acp_cell[3].pdata_size = sizeof(struct 
i2s_platform_data);
 
-               r = mfd_add_hotplug_devices(adev->acp.parent, 
adev->acp.acp_cell, ACP_DEVS);
+               r = mfd_add_devices(adev->acp.parent, 0, adev->acp.acp_cell, 
ACP_DEVS, NULL, 0, NULL);
                if (r)
                        goto failure;
 
-- 
2.48.1