drm/amd/display: Fix for outbox1 ring buffer typecasting issue

[WHY]
Compiler warning "pointer to integer of different size" reported on
outbox1 ring buffer address typecasting.

Reported-by: kernel test robot <lkp@intel.com>
[HOW]
Fixed the issue by typecasting with character pointer.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
index 1ee2000ad099582d3acc84b96045c0da7d6257ae..8ba0a9e2da541ec07088ff2b7ffc5883253a6210 100644 (file)
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
@@ -508,7 +508,7 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub,
 
                // Initialize outbox1 ring buffer
                rb_params.ctx = dmub;
-               rb_params.base_address = (void *) ((uint64_t) (mail_fb->cpu_addr) + DMUB_RB_SIZE);
+               rb_params.base_address = (void *) ((uint8_t *) (mail_fb->cpu_addr) + DMUB_RB_SIZE);
                rb_params.capacity = DMUB_RB_SIZE;
                dmub_rb_init(&dmub->outbox1_rb, &rb_params);