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drm/i915/alpm: Share alpm support checks with PSR code

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Convert intel_alpm_aux_wake_supported and
intel_alpm_aux_less_wake_supported as non-static. Use them in intel_psr.c
instead of local variables.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240607134917.1327574-8-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2024-06-07 16:49:11 +03:00
parent 32f0045f90
commit 92d03bdee4
3 changed files with 6 additions and 14 deletions
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4
drivers/gpu/drm/i915/display/intel_alpm.c
View File

@ -11,12 +11,12 @@
#include "intel_dp_aux.h"
#include "intel_psr_regs.h"
static bool intel_alpm_aux_wake_supported(struct intel_dp *intel_dp)
bool intel_alpm_aux_wake_supported(struct intel_dp *intel_dp)
{
return intel_dp->alpm_dpcd & DP_ALPM_CAP;
}
static bool intel_alpm_aux_less_wake_supported(struct intel_dp *intel_dp)
bool intel_alpm_aux_less_wake_supported(struct intel_dp *intel_dp)
{
return intel_dp->alpm_dpcd & DP_ALPM_AUX_LESS_CAP;
}

2
drivers/gpu/drm/i915/display/intel_alpm.h
View File

@ -22,4 +22,6 @@ void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
void intel_alpm_configure(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state);
void intel_alpm_lobf_debugfs_add(struct intel_connector *connector);
bool intel_alpm_aux_wake_supported(struct intel_dp *intel_dp);
bool intel_alpm_aux_less_wake_supported(struct intel_dp *intel_dp);
#endif

14
drivers/gpu/drm/i915/display/intel_psr.c
View File

@ -446,16 +446,6 @@ void intel_psr_irq_handler(struct intel_dp *intel_dp, u32 psr_iir)
}
}
static bool intel_dp_get_alpm_status(struct intel_dp *intel_dp)
{
u8 alpm_caps = 0;
if (drm_dp_dpcd_readb(&intel_dp->aux, DP_RECEIVER_ALPM_CAP,
&alpm_caps) != 1)
return false;
return alpm_caps & DP_ALPM_CAP;
}
static u8 intel_dp_get_sink_sync_latency(struct intel_dp *intel_dp)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
@ -600,7 +590,6 @@ static void _psr_init_dpcd(struct intel_dp *intel_dp)
intel_dp->psr_dpcd[0] >= DP_PSR2_WITH_Y_COORD_IS_SUPPORTED) {
bool y_req = intel_dp->psr_dpcd[1] &
DP_PSR2_SU_Y_COORDINATE_REQUIRED;
bool alpm = intel_dp_get_alpm_status(intel_dp);
/*
* All panels that supports PSR version 03h (PSR2 +
@ -613,7 +602,8 @@ static void _psr_init_dpcd(struct intel_dp *intel_dp)
* Y-coordinate requirement panels we would need to enable
* GTC first.
*/
intel_dp->psr.sink_psr2_support = y_req && alpm;
intel_dp->psr.sink_psr2_support = y_req &&
intel_alpm_aux_wake_supported(intel_dp);
drm_dbg_kms(&i915->drm, "PSR2 %ssupported\n",
intel_dp->psr.sink_psr2_support ? "" : "not ");
}