diff options
| author | Jouni Högander <jouni.hogander@intel.com> | 2025-07-22 15:56:17 +0300 |
|---|---|---|
| committer | Tvrtko Ursulin <tursulin@ursulin.net> | 2025-07-29 10:20:33 +0100 |
| commit | 3eb63578d8d9bbaffc204a911cfae6763e895dfe (patch) | |
| tree | 9558c5427790ced583203c22fc3196b4a4ef8912 /drivers/gpu | |
| parent | drm/i915/display: Avoid unnecessarily calling intel_cx0_get_owned_lane_mask (diff) | |
| download | linux-3eb63578d8d9bbaffc204a911cfae6763e895dfe.tar.gz linux-3eb63578d8d9bbaffc204a911cfae6763e895dfe.zip | |
drm/i915/display: Ensure phy is accessible on lfps configuration
Ensure phy is accessible on lfps configuration by adding
intel_cx0_phy_transaction_begin/end around it.
Fixes: 9dc619680de4 ("drm/i915/display: Add function to configure LFPS sending")
Suggested-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://lore.kernel.org/r/20250722125618.1842615-4-jouni.hogander@intel.com
(cherry picked from commit cf433f94f188782166598300c4c05274fd13c5a7)
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_cx0_phy.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c index 2993dabdbee6..a203937d66db 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c @@ -3239,6 +3239,7 @@ void intel_lnl_mac_transmit_lfps(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct intel_display *display = to_intel_display(encoder); + intel_wakeref_t wakeref; int i; u8 owned_lane_mask; @@ -3247,6 +3248,9 @@ void intel_lnl_mac_transmit_lfps(struct intel_encoder *encoder, return; owned_lane_mask = intel_cx0_get_owned_lane_mask(encoder); + + wakeref = intel_cx0_phy_transaction_begin(encoder); + for (i = 0; i < 4; i++) { int tx = i % 2 + 1; u8 lane_mask = i < 2 ? INTEL_CX0_LANE0 : INTEL_CX0_LANE1; @@ -3258,6 +3262,8 @@ void intel_lnl_mac_transmit_lfps(struct intel_encoder *encoder, CONTROL0_MAC_TRANSMIT_LFPS, CONTROL0_MAC_TRANSMIT_LFPS, MB_WRITE_COMMITTED); } + + intel_cx0_phy_transaction_end(encoder, wakeref); } static u8 cx0_power_control_disable_val(struct intel_encoder *encoder) |