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drm/i915/psr: Move vblank length check to separate function

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We are about to add more complexity to vblank length check. It makes sense
to move it to separate function for sake of clarity.

v2: change name to wake_lines_fit_into_vblank

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240607134917.1327574-11-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2024-06-07 16:49:14 +03:00
parent 51ee1f29a9
commit 2e8938a1c5
1 changed files with 15 additions and 3 deletions
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18
drivers/gpu/drm/i915/display/intel_psr.c
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@ -1243,6 +1243,20 @@ static int intel_psr_entry_setup_frames(struct intel_dp *intel_dp,
return entry_setup_frames;
}
static bool wake_lines_fit_into_vblank(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state)
{
int vblank = crtc_state->hw.adjusted_mode.crtc_vblank_end -
crtc_state->hw.adjusted_mode.crtc_vblank_start;
int wake_lines = psr2_block_count_lines(intel_dp);
/* Vblank >= PSR2_CTL Block Count Number maximum line count */
if (vblank < wake_lines)
return false;
return true;
}
static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
struct intel_crtc_state *crtc_state)
{
@ -1333,9 +1347,7 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
}
/* Vblank >= PSR2_CTL Block Count Number maximum line count */
if (crtc_state->hw.adjusted_mode.crtc_vblank_end -
crtc_state->hw.adjusted_mode.crtc_vblank_start <
psr2_block_count_lines(intel_dp)) {
if (!wake_lines_fit_into_vblank(intel_dp, crtc_state)) {
drm_dbg_kms(&dev_priv->drm,
"PSR2 not enabled, too short vblank time\n");
return false;