From 3068dcefcbe32413fab52b83ba25d0aff9461e74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Tue, 10 May 2022 13:42:31 +0300
Subject: drm/i915/pps: Introduce pps_delays_valid()
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Git-commit: 60b02a09598f87972a15bb181b9a62b8a8ee682a
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
Add a small helper that determines if the PPS delays have been
initialized or not.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_pps.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c
index bc56f0fe8e6d..2ef6502703c2 100644
--- a/drivers/gpu/drm/i915/display/intel_pps.c
+++ b/drivers/gpu/drm/i915/display/intel_pps.c
@@ -1159,6 +1159,12 @@ intel_pps_verify_state(struct intel_dp *intel_dp)
}
}
+static bool pps_delays_valid(struct edp_power_seq *delays)
+{
+ return delays->t1_t3 || delays->t8 || delays->t9 ||
+ delays->t10 || delays->t11_t12;
+}
+
static void pps_init_delays_cur(struct intel_dp *intel_dp,
struct edp_power_seq *cur)
{
@@ -1230,7 +1236,7 @@ static void pps_init_delays(struct intel_dp *intel_dp)
lockdep_assert_held(&dev_priv->pps_mutex);
/* already initialized? */
- if (final->t11_t12 != 0)
+ if (pps_delays_valid(final))
return;
pps_init_delays_cur(intel_dp, &cur);
--
2.38.1