diff options
| author | Muhammad Ansari <muansari@amd.com> | 2022-06-20 17:49:35 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-07-12 16:49:05 -0400 |
| commit | 90bb21cb692ead906738d314f3dcdc432aaee015 (patch) | |
| tree | 6fe6d4872b53bfe01b8062c9b34f986d1ef2e9ae /drivers/gpu/drm/amd/display | |
| parent | 8a076bbcc1278c6256c57915bc193890a6432c6d (diff) | |
drm/amd/display: Helper function for ALPM initialization
[WHY]
Needed a helper function for ALPM DPCD initialization
[HOW]
Refactoring to put ALPM initialization in a helper function
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Muhammad Ansari <muansari@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 27 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 2 |
2 files changed, 19 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 335ca5b14fa7..dbdeda60e9e2 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -2734,6 +2734,22 @@ static void enable_link_lvds(struct pipe_ctx *pipe_ctx) } +bool dc_power_alpm_dpcd_enable(struct dc_link *link, bool enable) +{ + bool ret = false; + union dpcd_alpm_configuration alpm_config; + + if (link->psr_settings.psr_version == DC_PSR_VERSION_SU_1) { + memset(&alpm_config, 0, sizeof(alpm_config)); + + alpm_config.bits.ENABLE = (enable ? true : false); + ret = dm_helpers_dp_write_dpcd(link->ctx, link, + DP_RECEIVER_ALPM_CONFIG, &alpm_config.raw, + sizeof(alpm_config.raw)); + } + return ret; +} + /****************************enable_link***********************************/ static enum dc_status enable_link( struct dc_state *state, @@ -3228,7 +3244,6 @@ bool dc_link_setup_psr(struct dc_link *link, unsigned int panel_inst; /* updateSinkPsrDpcdConfig*/ union dpcd_psr_configuration psr_configuration; - union dpcd_alpm_configuration alpm_configuration; union dpcd_sink_active_vtotal_control_mode vtotal_control = {0}; psr_context->controllerId = CONTROLLER_ID_UNDEFINED; @@ -3284,15 +3299,7 @@ bool dc_link_setup_psr(struct dc_link *link, sizeof(psr_configuration.raw)); if (link->psr_settings.psr_version == DC_PSR_VERSION_SU_1) { - memset(&alpm_configuration, 0, sizeof(alpm_configuration)); - - alpm_configuration.bits.ENABLE = 1; - dm_helpers_dp_write_dpcd( - link->ctx, - link, - DP_RECEIVER_ALPM_CONFIG, - &alpm_configuration.raw, - sizeof(alpm_configuration.raw)); + dc_power_alpm_dpcd_enable(link, true); psr_context->su_granularity_required = psr_config->su_granularity_required; psr_context->su_y_granularity = diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index 29c0040a6dd4..023774b94da3 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -320,6 +320,8 @@ bool dc_link_setup_psr(struct dc_link *dc_link, const struct dc_stream_state *stream, struct psr_config *psr_config, struct psr_context *psr_context); +bool dc_power_alpm_dpcd_enable(struct dc_link *link, bool enable); + void dc_link_get_psr_residency(const struct dc_link *link, uint32_t *residency); void dc_link_blank_all_dp_displays(struct dc *dc); |