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authorKevin Hilman <khilman@linaro.org>2015-10-13 16:30:38 -0700
committerKevin Hilman <khilman@linaro.org>2015-10-13 16:30:38 -0700
commit575afa2b6b9b628766618f3da6c7289ab32f5661 (patch)
treed4a23ddffc524e15b9a68b1aefa44da967fe7dd8 /drivers/gpu/drm/radeon/radeon_connectors.c
parentc765e5c15e7d23d2b8b37fafdafc63c0ea75fabf (diff)
parent1230ae0e99e05ced8a945a1a2c5762ce5c6c97c9 (diff)
Merge tag 'v3.14.54' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into linux-linaro-lsk-v3.14lsk-v3.14-15.10
This is the 3.14.54 stable release * tag 'v3.14.54' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable: (115 commits) Linux 3.14.54 NVMe: Initialize device reference count earlier udf: Check length of extended attributes and allocation descriptors x86/nmi/64: Use DF to avoid userspace RSP confusing nested NMI detection x86/nmi/64: Reorder nested NMI checks x86/nmi/64: Improve nested NMI comments x86/nmi/64: Switch stacks on userspace NMI entry x86/nmi/64: Remove asm code that saves CR2 x86/nmi: Enable nested do_nmi() handling for 64-bit kernels Revert "iio: bmg160: IIO_BUFFER and IIO_TRIGGERED_BUFFER are required" net: gso: use feature flag argument in all protocol gso handlers bna: fix interrupts storm caused by erroneous packets udp: fix dst races with multicast early demux rds: fix an integer overflow test in rds_info_getsockopt() packet: missing dev_put() in packet_do_bind() fib_rules: fix fib rule dumps across multiple skbs openvswitch: Zero flows on allocation. sctp: fix race on protocol/netns initialization netlink, mmap: transform mmap skb into full skb on taps net/ipv6: Correct PIM6 mrt_lock handling ...
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 4d36b9e86275..17ae621dbdab 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -71,6 +71,11 @@ void radeon_connector_hotplug(struct drm_connector *connector)
if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
} else if (radeon_dp_needs_link_train(radeon_connector)) {
+ /* Don't try to start link training before we
+ * have the dpcd */
+ if (!radeon_dp_getdpcd(radeon_connector))
+ return;
+
/* set it to OFF so that drm_helper_connector_dpms()
* won't return immediately since the current state
* is ON at this point.