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drm/i915: Use 18 fast wake AUX sync len
HW default for wake sync pulses is 18. 10 precharge and 8 preamble. There is no reason to change this especially as it is causing problems with certain eDP panels. v3: Change "Fixes:" commit v2: Remove "fast wake" repeat from subject Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Fixes:e1c71f8f91
("drm/i915: Fix fast wake AUX sync len") Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8475 Reviewed-by: Luca Coelho <luciano.coelho@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230530101649.2549949-1-jouni.hogander@intel.com (cherry picked from commitb29a20f7c4
) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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@ -129,7 +129,7 @@ static int intel_dp_aux_sync_len(void)
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static int intel_dp_aux_fw_sync_len(void)
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{
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int precharge = 16; /* 10-16 */
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int precharge = 10; /* 10-16 */
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int preamble = 8;
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return precharge + preamble;
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