diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-06-06 22:14:53 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-09-27 18:38:40 +0300 |
| commit | df3b919286981bd00d115569fd431d4266731f47 (patch) | |
| tree | ea22ba3e51844b0d7ff44c659269617bf3a6e47c /drivers/gpu/drm/i915 | |
| parent | 0c1c7a649975a2cec5645860be76a91a3653e944 (diff) | |
| download | linux-df3b919286981bd00d115569fd431d4266731f47.tar.xz | |
drm/i915/dsb: Introduce intel_dsb_noop()
Add a helper for emitting a number of DSB NOOPs commands.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606191504.18099-9-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsb.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index 22c716ee75e2..4ef799c087b4 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -234,6 +234,15 @@ void intel_dsb_reg_write(struct intel_dsb *dsb, } } +void intel_dsb_noop(struct intel_dsb *dsb, int count) +{ + int i; + + for (i = 0; i < count; i++) + intel_dsb_emit(dsb, 0, + DSB_OPCODE_NOOP << DSB_OPCODE_SHIFT); +} + static void intel_dsb_align_tail(struct intel_dsb *dsb) { u32 aligned_tail, tail; diff --git a/drivers/gpu/drm/i915/display/intel_dsb.h b/drivers/gpu/drm/i915/display/intel_dsb.h index b8148b47022d..5a08bc21beda 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.h +++ b/drivers/gpu/drm/i915/display/intel_dsb.h @@ -19,6 +19,7 @@ void intel_dsb_finish(struct intel_dsb *dsb); void intel_dsb_cleanup(struct intel_dsb *dsb); void intel_dsb_reg_write(struct intel_dsb *dsb, i915_reg_t reg, u32 val); +void intel_dsb_noop(struct intel_dsb *dsb, int count); void intel_dsb_commit(struct intel_dsb *dsb, bool wait_for_vblank); void intel_dsb_wait(struct intel_dsb *dsb); |