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| author | Jens Axboe <axboe@kernel.dk> | 2024-09-17 08:32:53 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-09-17 08:32:53 -0600 |
| commit | 42b16d3ac371a2fac9b6f08fd75f23f34ba3955a (patch) | |
| tree | d15a2fe1f7441361b972bc787af5122adc3fcb71 /drivers/gpu/drm/ast/ast_mode.c | |
| parent | 4208c562a27899212e8046080555e0f204e0579a (diff) | |
| parent | 98f7e32f20d28ec452afb208f9cffc08448a2652 (diff) | |
Merge tag 'v6.11' into for-6.12/block
Merge in 6.11 final to get the fix for preventing deadlocks on an
elevator switch, as there's a fixup for that patch.
* tag 'v6.11': (1788 commits)
Linux 6.11
Revert "KVM: VMX: Always honor guest PAT on CPUs that support self-snoop"
pinctrl: pinctrl-cy8c95x0: Fix regcache
cifs: Fix signature miscalculation
mm: avoid leaving partial pfn mappings around in error case
drm/xe/client: add missing bo locking in show_meminfo()
drm/xe/client: fix deadlock in show_meminfo()
drm/xe/oa: Enable Xe2+ PES disaggregation
drm/xe/display: fix compat IS_DISPLAY_STEP() range end
drm/xe: Fix access_ok check in user_fence_create
drm/xe: Fix possible UAF in guc_exec_queue_process_msg
drm/xe: Remove fence check from send_tlb_invalidation
drm/xe/gt: Remove double include
net: netfilter: move nf flowtable bpf initialization in nf_flow_table_module_init()
PCI: Fix potential deadlock in pcim_intx()
workqueue: Clear worker->pool in the worker thread context
net: tighten bad gso csum offset check in virtio_net_hdr
netlink: specs: mptcp: fix port endianness
net: dpaa: Pad packets to ETH_ZLEN
mptcp: pm: Fix uaf in __timer_delete_sync
...
Diffstat (limited to 'drivers/gpu/drm/ast/ast_mode.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_mode.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index dc8f639e82fd..049ee1477c33 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -28,6 +28,7 @@ * Authors: Dave Airlie <airlied@redhat.com> */ +#include <linux/delay.h> #include <linux/export.h> #include <linux/pci.h> @@ -1687,11 +1688,35 @@ static int ast_astdp_connector_helper_detect_ctx(struct drm_connector *connector struct drm_modeset_acquire_ctx *ctx, bool force) { + struct drm_device *dev = connector->dev; struct ast_device *ast = to_ast_device(connector->dev); + enum drm_connector_status status = connector_status_disconnected; + struct drm_connector_state *connector_state = connector->state; + bool is_active = false; + + mutex_lock(&ast->modeset_lock); + + if (connector_state && connector_state->crtc) { + struct drm_crtc_state *crtc_state = connector_state->crtc->state; + + if (crtc_state && crtc_state->active) + is_active = true; + } + + if (!is_active && !ast_dp_power_is_on(ast)) { + ast_dp_power_on_off(dev, true); + msleep(50); + } if (ast_astdp_is_connected(ast)) - return connector_status_connected; - return connector_status_disconnected; + status = connector_status_connected; + + if (!is_active && status == connector_status_disconnected) + ast_dp_power_on_off(dev, false); + + mutex_unlock(&ast->modeset_lock); + + return status; } static const struct drm_connector_helper_funcs ast_astdp_connector_helper_funcs = { |