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| author | Jani Nikula <jani.nikula@intel.com> | 2013-09-27 18:01:01 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-10-01 07:28:57 +0200 |
| commit | 0aec288130713cf7bcf97c929ac5fab6a8e00e44 (patch) | |
| tree | 3fb1b235e3bb502a7dcd6cf9351d12725697c436 /include/drm/drm_dp_helper.h | |
| parent | drm/exynos: use drm_edid_duplicate (diff) | |
| download | linux-0aec288130713cf7bcf97c929ac5fab6a8e00e44.tar.xz linux-0aec288130713cf7bcf97c929ac5fab6a8e00e44.zip | |
drm/dp: constify DP DPCD helpers
None of the DP DPCD helpers need to modify the DPCD.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm/drm_dp_helper.h')
| -rw-r--r-- | include/drm/drm_dp_helper.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 83da4eb1575b..110f4f1f51d7 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -333,20 +333,20 @@ i2c_dp_aux_add_bus(struct i2c_adapter *adapter); #define DP_LINK_STATUS_SIZE 6 -bool drm_dp_channel_eq_ok(u8 link_status[DP_LINK_STATUS_SIZE], +bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE], int lane_count); -bool drm_dp_clock_recovery_ok(u8 link_status[DP_LINK_STATUS_SIZE], +bool drm_dp_clock_recovery_ok(const u8 link_status[DP_LINK_STATUS_SIZE], int lane_count); -u8 drm_dp_get_adjust_request_voltage(u8 link_status[DP_LINK_STATUS_SIZE], +u8 drm_dp_get_adjust_request_voltage(const u8 link_status[DP_LINK_STATUS_SIZE], int lane); -u8 drm_dp_get_adjust_request_pre_emphasis(u8 link_status[DP_LINK_STATUS_SIZE], +u8 drm_dp_get_adjust_request_pre_emphasis(const u8 link_status[DP_LINK_STATUS_SIZE], int lane); #define DP_RECEIVER_CAP_SIZE 0xf #define EDP_PSR_RECEIVER_CAP_SIZE 2 -void drm_dp_link_train_clock_recovery_delay(u8 dpcd[DP_RECEIVER_CAP_SIZE]); -void drm_dp_link_train_channel_eq_delay(u8 dpcd[DP_RECEIVER_CAP_SIZE]); +void drm_dp_link_train_clock_recovery_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]); +void drm_dp_link_train_channel_eq_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]); u8 drm_dp_link_rate_to_bw_code(int link_rate); int drm_dp_bw_code_to_link_rate(u8 link_bw); @@ -379,13 +379,13 @@ struct edp_vsc_psr { #define EDP_VSC_PSR_CRC_VALUES_VALID (1<<2) static inline int -drm_dp_max_link_rate(u8 dpcd[DP_RECEIVER_CAP_SIZE]) +drm_dp_max_link_rate(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) { return drm_dp_bw_code_to_link_rate(dpcd[DP_MAX_LINK_RATE]); } static inline u8 -drm_dp_max_lane_count(u8 dpcd[DP_RECEIVER_CAP_SIZE]) +drm_dp_max_lane_count(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) { return dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK; } |