From 89f12b2cc3a5c9e850e937f62e6e0d6aa6997905 Mon Sep 17 00:00:00 2001
From: Oleg Vasilev <oleg.vasilev@intel.com>
Date: Thu, 29 Aug 2019 14:48:49 +0300
Subject: drm: always determine branch device with drm_dp_is_branch()
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Git-commit: b4c32073b8cfb7ad264bf65d40cc7419ff489ea0
Patch-mainline: v5.7-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
The helper should always be used.
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Oleg Vasilev <oleg.vasilev@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190829114854.1539-2-oleg.vasilev@intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/drm_dp_helper.c | 3 +--
drivers/gpu/drm/i915/display/intel_dp.c | 2 +-
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index a5364b5192b8..5a103e9b3c86 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -470,8 +470,7 @@ void drm_dp_downstream_debug(struct seq_file *m,
int len;
uint8_t rev[2];
int type = port_cap[0] & DP_DS_PORT_TYPE_MASK;
- bool branch_device = dpcd[DP_DOWNSTREAMPORT_PRESENT] &
- DP_DWN_STRM_PORT_PRESENT;
+ bool branch_device = drm_dp_is_branch(dpcd);
seq_printf(m, "\tDP branch device present: %s\n",
branch_device ? "yes" : "no");
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 208457005a11..82f131f96741 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -3149,7 +3149,7 @@ static bool downstream_hpd_needs_d0(struct intel_dp *intel_dp)
* FIXME should really check all downstream ports...
*/
return intel_dp->dpcd[DP_DPCD_REV] == 0x11 &&
- intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT &&
+ drm_dp_is_branch(intel_dp->dpcd) &&
intel_dp->downstream_ports[0] & DP_DS_PORT_HPD;
}
--
2.28.0