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

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=7272c9d2286525d4c6bce788243cf2b6f306d15c
Commit:     7272c9d2286525d4c6bce788243cf2b6f306d15c
Parent:     32f79a8a82b2ff6f1828b258da214869adc2a28c
Author:     Samuel Li <samuel.li at amd.com>
AuthorDate: Tue Nov 19 15:04:45 2013 -0500
Committer:  Alex Deucher <alexander.deucher at amd.com>
CommitDate: Tue Nov 19 15:57:29 2013 -0500

    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 at amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
    Cc: stable at vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_asic.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 50853c0..e354ce9 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,
 	},