diff options
| author | Maxime Ripard <[email protected]> | 2023-11-15 09:45:19 +0000 |
|---|---|---|
| committer | Maxime Ripard <[email protected]> | 2023-11-15 09:56:44 +0000 |
| commit | 3bf3e21c15d4386a5f15118ec39bbc1b67ea5759 (patch) | |
| tree | a8880bb7b152d913ebd86e7cd858600dbe22ed38 /drivers/gpu/drm/i915/display/intel_lspcon.c | |
| parent | drm/virtio: Fix return value for VIRTGPU_CONTEXT_PARAM_DEBUG_NAME (diff) | |
| parent | Linux 6.7-rc1 (diff) | |
| download | kernel-3bf3e21c15d4386a5f15118ec39bbc1b67ea5759.tar.gz kernel-3bf3e21c15d4386a5f15118ec39bbc1b67ea5759.zip | |
Merge drm/drm-next into drm-misc-next
Let's kickstart the v6.8 release cycle.
Signed-off-by: Maxime Ripard <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_lspcon.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_lspcon.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c index 152a22a8ffd2..1d048fa98561 100644 --- a/drivers/gpu/drm/i915/display/intel_lspcon.c +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c @@ -153,6 +153,18 @@ static enum drm_lspcon_mode lspcon_get_current_mode(struct intel_lspcon *lspcon) return current_mode; } +static int lspcon_get_mode_settle_timeout(struct intel_lspcon *lspcon) +{ + /* + * On some CometLake-based device designs the Parade PS175 takes more + * than 400ms to settle in PCON mode. 100 reboot trials on one device + * resulted in a median settle time of 440ms and a maximum of 444ms. + * Even after increasing the timeout to 500ms, 2% of devices still had + * this error. So this sets the timeout to 800ms. + */ + return lspcon->vendor == LSPCON_VENDOR_PARADE ? 800 : 400; +} + static enum drm_lspcon_mode lspcon_wait_mode(struct intel_lspcon *lspcon, enum drm_lspcon_mode mode) { @@ -167,7 +179,8 @@ static enum drm_lspcon_mode lspcon_wait_mode(struct intel_lspcon *lspcon, drm_dbg_kms(&i915->drm, "Waiting for LSPCON mode %s to settle\n", lspcon_mode_name(mode)); - wait_for((current_mode = lspcon_get_current_mode(lspcon)) == mode, 400); + wait_for((current_mode = lspcon_get_current_mode(lspcon)) == mode, + lspcon_get_mode_settle_timeout(lspcon)); if (current_mode != mode) drm_err(&i915->drm, "LSPCON mode hasn't settled\n"); |