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authorAlex Deucher <alexander.deucher@amd.com>2011-11-12 11:57:29 -0500
committerDave Airlie <airlied@redhat.com>2011-11-12 17:46:40 +0000
commita7c36fd8c5ee6dcca584137cb81aeefd785a0721 (patch)
treeda8a9677415a4dd41bfc2cd1356d60e33edc4714
parent8f3f1c9a22a6420e28c2d3eff59b832893bc8efc (diff)
downloadlinux-linaro-stable-a7c36fd8c5ee6dcca584137cb81aeefd785a0721.tar.gz
drm/radeon/kms/combios: fix dynamic allocation of PM clock modes
I missed the combios path when I updated the atombios pm code. Reported by amarsh04 on IRC. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c27
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 8bf83c4b4147..81fc100be7e1 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -2563,14 +2563,17 @@ void radeon_combios_get_power_modes(struct radeon_device *rdev)
/* allocate 2 power states */
rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state) * 2, GFP_KERNEL);
- if (!rdev->pm.power_state) {
- rdev->pm.default_power_state_index = state_index;
- rdev->pm.num_power_states = 0;
-
- rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
- rdev->pm.current_clock_mode_index = 0;
- return;
- }
+ if (rdev->pm.power_state) {
+ /* allocate 1 clock mode per state */
+ rdev->pm.power_state[0].clock_info =
+ kzalloc(sizeof(struct radeon_pm_clock_info) * 1, GFP_KERNEL);
+ rdev->pm.power_state[1].clock_info =
+ kzalloc(sizeof(struct radeon_pm_clock_info) * 1, GFP_KERNEL);
+ if (!rdev->pm.power_state[0].clock_info ||
+ !rdev->pm.power_state[1].clock_info)
+ goto pm_failed;
+ } else
+ goto pm_failed;
/* check for a thermal chip */
offset = combios_get_table_offset(dev, COMBIOS_OVERDRIVE_INFO_TABLE);
@@ -2735,6 +2738,14 @@ default_mode:
rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
rdev->pm.current_clock_mode_index = 0;
+ return;
+
+pm_failed:
+ rdev->pm.default_power_state_index = state_index;
+ rdev->pm.num_power_states = 0;
+
+ rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
+ rdev->pm.current_clock_mode_index = 0;
}
void radeon_external_tmds_setup(struct drm_encoder *encoder)