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drm/i915/display: Make intel_dp_aux_fw_sync_len available for PSR code

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BugLink: https://bugs.launchpad.net/bugs/2046315

ALPM AUX-Wake fast wake sync pulse count is needed by PSR to calculate IO
wake and fast wake lines. Convert intel_dp_aux_fw_sync_len as non-static
to make it available for PSR code.

v2: use int instead of u8

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240313133221.868391-2-jouni.hogander@intel.com
(cherry picked from commit 8453c12aa29f0a1fa106df4e9fd618f9235e1123 linux-next)
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Acked-by: Timo Aaltonen <timo.aaltonen@canonical.com>
Acked-by: Guoqing Jiang <guoqing.jiang@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Jouni Högander
2024-04-16 14:04:13 +08:00
committed by Stefan Bader
parent 7c7777b708
commit 65917d45a8
2 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/i915/display/intel_dp_aux.c
+1 -1
View File
@@ -142,7 +142,7 @@ static int intel_dp_aux_sync_len(void)
return precharge + preamble;
}
static int intel_dp_aux_fw_sync_len(void)
int intel_dp_aux_fw_sync_len(void)
{
int precharge = 10; /* 10-16 */
int preamble = 8;
drivers/gpu/drm/i915/display/intel_dp_aux.h
+1
View File
@@ -20,5 +20,6 @@ enum aux_ch intel_dp_aux_ch(struct intel_encoder *encoder);
void intel_dp_aux_irq_handler(struct drm_i915_private *i915);
u32 intel_dp_aux_pack(const u8 *src, int src_bytes);
int intel_dp_aux_fw_sync_len(void);
#endif /* __INTEL_DP_AUX_H__ */