drm/radeon: hook up backlight functions for CI and KV family.

Fixes crashes when handling atif events due to the lack of a
callback being registered.

Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 50853c0cb49d..e354ce94cdd1 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2015,6 +2015,8 @@ static struct radeon_asic ci_asic = {
                 .bandwidth_update = &dce8_bandwidth_update,
                 .get_vblank_counter = &evergreen_get_vblank_counter,
                 .wait_for_vblank = &dce4_wait_for_vblank,
+                .set_backlight_level = &atombios_set_backlight_level,
+                .get_backlight_level = &atombios_get_backlight_level,
                 .hdmi_enable = &evergreen_hdmi_enable,
                 .hdmi_setmode = &evergreen_hdmi_setmode,
         },
@@ -2114,6 +2116,8 @@ static struct radeon_asic kv_asic = {
                 .bandwidth_update = &dce8_bandwidth_update,
                 .get_vblank_counter = &evergreen_get_vblank_counter,
                 .wait_for_vblank = &dce4_wait_for_vblank,
+                .set_backlight_level = &atombios_set_backlight_level,
+                .get_backlight_level = &atombios_get_backlight_level,
                 .hdmi_enable = &evergreen_hdmi_enable,
                 .hdmi_setmode = &evergreen_hdmi_setmode,
         },