Commit Graph

95285 Commits

Author SHA1 Message Date
Biju Das
481fc9e7e1 drm/bridge: Drop CONFIG_OF conditionals around of_node pointers
Having conditional around the of_node pointers turns out to make driver
code use ugly #ifdef and #if blocks. So drop the conditionals.

Suggested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230831080938.47454-4-biju.das.jz@bp.renesas.com
2023-09-06 08:32:45 -07:00
Biju Das
39e0b96d61 drm/bridge/analogix/anx78xx: Drop ID table
The driver has an ID table, but it uses the wrong API for retrieving match
data and that will lead to a crash, if it is instantiated by user space or
using ID. From this, there is no user for the ID table and let's drop it
from the driver as it saves some memory.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230831080938.47454-2-biju.das.jz@bp.renesas.com
2023-09-06 08:32:28 -07:00
Tomi Valkeinen
f45acf7acf drm/bridge: lt8912b: Add missing drm_bridge_attach call
The driver does not call drm_bridge_attach(), which causes the next
bridge to not be added to the bridge chain. This causes the pipeline
init to fail when DRM_BRIDGE_ATTACH_NO_CONNECTOR is used.

Add the call to drm_bridge_attach().

Fixes: 30e2ae943c ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804-lt8912b-v1-4-c542692c6a2f@ideasonboard.com
2023-09-05 16:43:36 +02:00
Tomi Valkeinen
6985c5efc4 drm/bridge: lt8912b: Manually disable HPD only if it was enabled
lt8912b only calls drm_bridge_hpd_enable() if it creates a connector and
the next bridge has DRM_BRIDGE_OP_HPD set. However, when calling
drm_bridge_hpd_disable() it misses checking if a connector was created,
calling drm_bridge_hpd_disable() even if HPD was never enabled. I don't
see any issues caused by this wrong call, though.

Add the check to avoid wrongly calling drm_bridge_hpd_disable().

Fixes: 3b0a01a6a5 ("drm/bridge: lt8912b: Add hot plug detection")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804-lt8912b-v1-3-c542692c6a2f@ideasonboard.com
2023-09-05 16:43:36 +02:00
Tomi Valkeinen
4428399314 drm/bridge: lt8912b: Fix crash on bridge detach
The lt8912b driver, in its bridge detach function, calls
drm_connector_unregister() and drm_connector_cleanup().

drm_connector_unregister() should be called only for connectors
explicitly registered with drm_connector_register(), which is not the
case in lt8912b.

The driver's drm_connector_funcs.destroy hook is set to
drm_connector_cleanup().

Thus the driver should not call either drm_connector_unregister() nor
drm_connector_cleanup() in its lt8912_bridge_detach(), as they cause a
crash on bridge detach:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=00000000858f3000
[0000000000000000] pgd=0800000085918003, p4d=0800000085918003, pud=0800000085431003, pmd=0000000000000000
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in: tidss(-) display_connector lontium_lt8912b tc358768 panel_lvds panel_simple drm_dma_helper drm_kms_helper drm drm_panel_orientation_quirks
CPU: 3 PID: 462 Comm: rmmod Tainted: G        W          6.5.0-rc2+ #2
Hardware name: Toradex Verdin AM62 on Verdin Development Board (DT)
pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : drm_connector_cleanup+0x78/0x2d4 [drm]
lr : lt8912_bridge_detach+0x54/0x6c [lontium_lt8912b]
sp : ffff800082ed3a90
x29: ffff800082ed3a90 x28: ffff0000040c1940 x27: 0000000000000000
x26: 0000000000000000 x25: dead000000000122 x24: dead000000000122
x23: dead000000000100 x22: ffff000003fb6388 x21: 0000000000000000
x20: 0000000000000000 x19: ffff000003fb6260 x18: fffffffffffe56e8
x17: 0000000000000000 x16: 0010000000000000 x15: 0000000000000038
x14: 0000000000000000 x13: ffff800081914b48 x12: 000000000000040e
x11: 000000000000015a x10: ffff80008196ebb8 x9 : ffff800081914b48
x8 : 00000000ffffefff x7 : ffff0000040c1940 x6 : ffff80007aa649d0
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008159e008
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 drm_connector_cleanup+0x78/0x2d4 [drm]
 lt8912_bridge_detach+0x54/0x6c [lontium_lt8912b]
 drm_bridge_detach+0x44/0x84 [drm]
 drm_encoder_cleanup+0x40/0xb8 [drm]
 drmm_encoder_alloc_release+0x1c/0x30 [drm]
 drm_managed_release+0xac/0x148 [drm]
 drm_dev_put.part.0+0x88/0xb8 [drm]
 devm_drm_dev_init_release+0x14/0x24 [drm]
 devm_action_release+0x14/0x20
 release_nodes+0x5c/0x90
 devres_release_all+0x8c/0xe0
 device_unbind_cleanup+0x18/0x68
 device_release_driver_internal+0x208/0x23c
 driver_detach+0x4c/0x94
 bus_remove_driver+0x70/0xf4
 driver_unregister+0x30/0x60
 platform_driver_unregister+0x14/0x20
 tidss_platform_driver_exit+0x18/0xb2c [tidss]
 __arm64_sys_delete_module+0x1a0/0x2b4
 invoke_syscall+0x48/0x110
 el0_svc_common.constprop.0+0x60/0x10c
 do_el0_svc_compat+0x1c/0x40
 el0_svc_compat+0x40/0xac
 el0t_32_sync_handler+0xb0/0x138
 el0t_32_sync+0x194/0x198
Code: 9104a276 f2fbd5b7 aa0203e1 91008af8 (f85c0420)

Fixes: 30e2ae943c ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804-lt8912b-v1-2-c542692c6a2f@ideasonboard.com
2023-09-05 16:43:36 +02:00
Tomi Valkeinen
941882a0e9 drm/bridge: lt8912b: Fix bridge_detach
The driver calls lt8912_bridge_detach() from its lt8912_remove()
function. As the DRM core detaches bridges automatically, this leads to
calling lt8912_bridge_detach() twice. The code probably has tried to
manage the double-call with the 'is_attached' variable, but the driver
never sets the variable to false, so its of no help.

Fix the issue by dropping the call to lt8912_bridge_detach() from
lt8912_remove(), as the DRM core will handle the detach call for us,
and also drop the useless is_attached field.

Fixes: 30e2ae943c ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804-lt8912b-v1-1-c542692c6a2f@ideasonboard.com
2023-09-05 16:43:11 +02:00
Jai Luthra
d0375f6858 drm: bridge: it66121: Fix invalid connector dereference
Fix the NULL pointer dereference when no monitor is connected, and the
sound card is opened from userspace.

Instead return an empty buffer (of zeroes) as the EDID information to
the sound framework if there is no connector attached.

Fixes: e0fd83dbe9 ("drm: bridge: it66121: Add audio support")
Reported-by: Nishanth Menon <nm@ti.com>
Closes: https://lore.kernel.org/all/20230825105849.crhon42qndxqif4i@gondola/
Reviewed-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Aradhya Bhatia <a-bhatia1@ti.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901-it66121_edid-v2-1-aa59605336b9@ti.com
2023-09-05 16:23:58 +02:00
Biju Das
29ff3b7e23 drm: bridge: it66121: Simplify probe()
Simplify probe() by replacing of_device_get_match_data() and ID lookup
for retrieving match data by i2c_get_match_data().

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230818191817.340360-3-biju.das.jz@bp.renesas.com
2023-09-05 16:16:16 +02:00
Biju Das
c11c1a5057 drm: bridge: it66121: Extend match support for OF tables
The driver has OF match table, still it uses ID lookup table for
retrieving match data. Currently the driver is working on the
assumption that a I2C device registered via OF will always match a
legacy I2C device ID. The correct approach is to have an OF device ID
table using of_device_match_data() if the devices are registered via OF.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230818191817.340360-2-biju.das.jz@bp.renesas.com
2023-09-05 16:16:15 +02:00
Yue Haibing
f8afe6b41b drm/virtio: Remove unused function declarations
Commit dc5698e80c ("Add virtio gpu driver.") declared but never
implemented virtio_gpu_attach_status_page()/virtio_gpu_detach_status_page()
Also commit 62fb7a5e10 ("virtio-gpu: add 3d/virgl support")
declared but never implemented virtio_gpu_fence_ack() and
virtio_gpu_dequeue_fence_func().
Commit c84adb304c ("drm/virtio: Support virtgpu exported resources")
declared but never implemented virtgpu_gem_prime_get_uuid().

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230811101823.32344-1-yuehaibing@huawei.com
2023-09-02 16:59:17 +03:00
Christian König
8e455145d8 drm/debugfs: rework drm_debugfs_create_files implementation v2
Use managed memory allocation for this. That allows us to not keep
track of all the files any more.

v2: keep drm_debugfs_cleanup(), but rename to drm_debugfs_unregister(),
    we still need to cleanup the symlink

Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230829110115.3442-6-christian.koenig@amd.com
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
2023-09-01 08:54:12 +02:00
Christian König
ec9c7073bb drm/debugfs: remove dev->debugfs_list and debugfs_mutex v2
The mutex was completely pointless in the first place since any
parallel adding of files to this list would result in random
behavior since the list is filled and consumed multiple times.

Completely drop that approach and just create the files directly but
return -ENODEV while opening the file when the minors are not
registered yet.

v2: rebase on debugfs directory rework, limit access before minors are
    registered.

Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230829110115.3442-5-christian.koenig@amd.com
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
2023-09-01 08:53:05 +02:00
Christian König
0b30d57aca drm/debugfs: rework debugfs directory creation v5
Instead of the per minor directories only create a single debugfs
directory for the whole device directly when the device is initialized.

For DRM devices each minor gets a symlink to the per device directory
for now until we can be sure that this isn't useful any more in any way.

Accel devices create only the per device directory and also drops the mid
layer callback to create driver specific files.

v2: cleanup accel component as well
v3: fix typo when debugfs is disabled
v4: call drm_debugfs_dev_fini() during release as well,
    some kerneldoc typos fixed
v5: rebased and one more kerneldoc fix

Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230829110115.3442-4-christian.koenig@amd.com
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
2023-09-01 08:51:18 +02:00
baozhu.liu
19ecbe8325 drm/komeda: drop all currently held locks if deadlock happens
If komeda_pipeline_unbound_components() returns -EDEADLK,
it means that a deadlock happened in the locking context.
Currently, komeda is not dealing with the deadlock properly,producing the
following output when CONFIG_DEBUG_WW_MUTEX_SLOWPATH is enabled:

 ------------[ cut here ]------------
[   26.103984] WARNING: CPU: 2 PID: 345 at drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c:1248
	       komeda_release_unclaimed_resources+0x13c/0x170
[   26.117453] Modules linked in:
[   26.120511] CPU: 2 PID: 345 Comm: composer@2.1-se Kdump: loaded Tainted: G   W  5.10.110-SE-SDK1.8-dirty #16
[   26.131374] Hardware name: Siengine Se1000 Evaluation board (DT)
[   26.137379] pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--)
[   26.143385] pc : komeda_release_unclaimed_resources+0x13c/0x170
[   26.149301] lr : komeda_release_unclaimed_resources+0xbc/0x170
[   26.155130] sp : ffff800017b8b8d0
[   26.158442] pmr_save: 000000e0
[   26.161493] x29: ffff800017b8b8d0 x28: ffff000cf2f96200
[   26.166805] x27: ffff000c8f5a8800 x26: 0000000000000000
[   26.172116] x25: 0000000000000038 x24: ffff8000116a0140
[   26.177428] x23: 0000000000000038 x22: ffff000cf2f96200
[   26.182739] x21: ffff000cfc300300 x20: ffff000c8ab77080
[   26.188051] x19: 0000000000000003 x18: 0000000000000000
[   26.193362] x17: 0000000000000000 x16: 0000000000000000
[   26.198672] x15: b400e638f738ba38 x14: 0000000000000000
[   26.203983] x13: 0000000106400a00 x12: 0000000000000000
[   26.209294] x11: 0000000000000000 x10: 0000000000000000
[   26.214604] x9 : ffff800012f80000 x8 : ffff000ca3308000
[   26.219915] x7 : 0000000ff3000000 x6 : ffff80001084034c
[   26.225226] x5 : ffff800017b8bc40 x4 : 000000000000000f
[   26.230536] x3 : ffff000ca3308000 x2 : 0000000000000000
[   26.235847] x1 : 0000000000000000 x0 : ffffffffffffffdd
[   26.241158] Call trace:
[   26.243604] komeda_release_unclaimed_resources+0x13c/0x170
[   26.249175] komeda_crtc_atomic_check+0x68/0xf0
[   26.253706] drm_atomic_helper_check_planes+0x138/0x1f4
[   26.258929] komeda_kms_check+0x284/0x36c
[   26.262939] drm_atomic_check_only+0x40c/0x714
[   26.267381] drm_atomic_nonblocking_commit+0x1c/0x60
[   26.272344] drm_mode_atomic_ioctl+0xa3c/0xb8c
[   26.276787] drm_ioctl_kernel+0xc4/0x120
[   26.280708] drm_ioctl+0x268/0x534
[   26.284109] __arm64_sys_ioctl+0xa8/0xf0
[   26.288030] el0_svc_common.constprop.0+0x80/0x240
[   26.292817] do_el0_svc+0x24/0x90
[   26.296132] el0_svc+0x20/0x30
[   26.299185] el0_sync_handler+0xe8/0xf0
[   26.303018] el0_sync+0x1a4/0x1c0
[   26.306330] irq event stamp: 0
[   26.309384] hardirqs last  enabled at (0): [<0000000000000000>] 0x0
[   26.315650] hardirqs last disabled at (0): [<ffff800010056d34>] copy_process+0x5d0/0x183c
[   26.323825] softirqs last  enabled at (0): [<ffff800010056d34>] copy_process+0x5d0/0x183c
[   26.331997] softirqs last disabled at (0): [<0000000000000000>] 0x0
[   26.338261] ---[ end trace 20ae984fa860184a ]---
[   26.343021] ------------[ cut here ]------------
[   26.347646] WARNING: CPU: 3 PID: 345 at drivers/gpu/drm/drm_modeset_lock.c:228 drm_modeset_drop_locks+0x84/0x90
[   26.357727] Modules linked in:
[   26.360783] CPU: 3 PID: 345 Comm: composer@2.1-se Kdump: loaded Tainted: G   W  5.10.110-SE-SDK1.8-dirty #16
[   26.371645] Hardware name: Siengine Se1000 Evaluation board (DT)
[   26.377647] pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--)
[   26.383649] pc : drm_modeset_drop_locks+0x84/0x90
[   26.388351] lr : drm_mode_atomic_ioctl+0x860/0xb8c
[   26.393137] sp : ffff800017b8bb10
[   26.396447] pmr_save: 000000e0
[   26.399497] x29: ffff800017b8bb10 x28: 0000000000000001
[   26.404807] x27: 0000000000000038 x26: 0000000000000002
[   26.410115] x25: ffff000cecbefa00 x24: ffff000cf2f96200
[   26.415423] x23: 0000000000000001 x22: 0000000000000018
[   26.420731] x21: 0000000000000001 x20: ffff800017b8bc10
[   26.426039] x19: 0000000000000000 x18: 0000000000000000
[   26.431347] x17: 0000000002e8bf2c x16: 0000000002e94c6b
[   26.436655] x15: 0000000002ea48b9 x14: ffff8000121f0300
[   26.441963] x13: 0000000002ee2ca8 x12: ffff80001129cae0
[   26.447272] x11: ffff800012435000 x10: ffff000ed46b5e88
[   26.452580] x9 : ffff000c9935e600 x8 : 0000000000000000
[   26.457888] x7 : 000000008020001e x6 : 000000008020001f
[   26.463196] x5 : ffff80001085fbe0 x4 : fffffe0033a59f20
[   26.468504] x3 : 000000008020001e x2 : 0000000000000000
[   26.473813] x1 : 0000000000000000 x0 : ffff000c8f596090
[   26.479122] Call trace:
[   26.481566] drm_modeset_drop_locks+0x84/0x90
[   26.485918] drm_mode_atomic_ioctl+0x860/0xb8c
[   26.490359] drm_ioctl_kernel+0xc4/0x120
[   26.494278] drm_ioctl+0x268/0x534
[   26.497677] __arm64_sys_ioctl+0xa8/0xf0
[   26.501598] el0_svc_common.constprop.0+0x80/0x240
[   26.506384] do_el0_svc+0x24/0x90
[   26.509697] el0_svc+0x20/0x30
[   26.512748] el0_sync_handler+0xe8/0xf0
[   26.516580] el0_sync+0x1a4/0x1c0
[   26.519891] irq event stamp: 0
[   26.522943] hardirqs last  enabled at (0): [<0000000000000000>] 0x0
[   26.529207] hardirqs last disabled at (0): [<ffff800010056d34>] copy_process+0x5d0/0x183c
[   26.537379] softirqs last  enabled at (0): [<ffff800010056d34>] copy_process+0x5d0/0x183c
[   26.545550] softirqs last disabled at (0): [<0000000000000000>] 0x0
[   26.551812] ---[ end trace 20ae984fa860184b ]---

According to the call trace information,it can be located to be
WARN_ON(IS_ERR(c_st)) in the komeda_pipeline_unbound_components function;
Then follow the function.
komeda_pipeline_unbound_components
-> komeda_component_get_state_and_set_user
  -> komeda_pipeline_get_state_and_set_crtc
    -> komeda_pipeline_get_state
      ->drm_atomic_get_private_obj_state
        -> drm_atomic_get_private_obj_state
          -> drm_modeset_lock

komeda_pipeline_unbound_components
-> komeda_component_get_state_and_set_user
  -> komeda_component_get_state
    -> drm_atomic_get_private_obj_state
     -> drm_modeset_lock

ret = drm_modeset_lock(&obj->lock, state->acquire_ctx); if (ret)
	return ERR_PTR(ret);
Here it return -EDEADLK.

deal with the deadlock as suggested by [1], using the
function drm_modeset_backoff().
[1] https://docs.kernel.org/gpu/drm-kms.html?highlight=kms#kms-locking

Therefore, handling this problem can be solved
by adding return -EDEADLK back to the drm_modeset_backoff processing flow
in the drm_mode_atomic_ioctl function.

Signed-off-by: baozhu.liu <lucas.liu@siengine.com>
Signed-off-by: menghui.huang <menghui.huang@siengine.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804013117.6870-1-menghui.huang@siengine.com
2023-08-31 16:38:04 +01:00
Christian König
7a0f217899 drm/debugfs: disallow debugfs access when device isn't registered
During device bringup it might be that we can't access the debugfs files.
Return -ENODEV until the registration is completed on access.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230829110115.3442-3-christian.koenig@amd.com
2023-08-31 17:00:37 +02:00
Christian König
e76e7ec8f1 drm/debugfs: drop debugfs_init() for the render and accel node v2
We want to remove per minor debugfs directories. Start by stopping
drivers from adding anything inside of those in the mid layer callback.

v2: drop it for the accel node as well

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230829110115.3442-2-christian.koenig@amd.com
2023-08-31 17:00:10 +02:00
Arthur Grillo
bb7f98db31 drm/tests: Add KUnit tests for drm_fb_memcpy()
Insert parameterized test for the drm_fb_memcpy() to ensure correctness
and prevent future regressions. The test case can accept different
formats.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-6-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:17 -03:00
Arthur Grillo
af4fd86a5c drm/tests: Add multi-plane support to conversion_buf_size()
The drm_fb_memcpy() supports multi-plane formats. To fully test it in
the future, add multi-plane support to the conversion_buf_size() helper.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-5-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:17 -03:00
Arthur Grillo
371e0b186a drm/tests: Add KUnit tests for drm_fb_build_fourcc_list()
Insert parameterized test for the drm_fb_build_fourcc_list() to ensure
correctness and prevent future regressions.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-4-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:17 -03:00
Arthur Grillo
c6099d7ed3 drm/tests: Add KUnit tests for drm_fb_clip_offset()
Insert parameterized test for the drm_fb_clip_offset() to ensure
correctness and prevent future regressions.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-3-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:16 -03:00
Arthur Grillo
97eacd052d drm/tests: Add KUnit tests for drm_fb_swab()
Insert parameterized test for the drm_fb_swab() to ensure correctness
and prevent future regressions.

Each expected color has it bytes reversed in order, so xrgb would be
bgrx.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-2-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:16 -03:00
Arthur Grillo
ef8e29b16f drm/tests: Test default pitch fallback
Test the default pitch fallback when NULL is passed as the dst_pitch on
the conversion procedures.

Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-1-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:10 -03:00
Justin Stitt
24883eb269 drm/repaper: fix -Wvoid-pointer-to-enum-cast warning
When building with clang 18 I see the following warning:
|       drivers/gpu/drm/tiny/repaper.c:952:11: warning: cast to smaller integer
|       type 'enum repaper_model' from 'const void *' [-Wvoid-pointer-to-enum-cast]
|         952 |                 model = (enum repaper_model)match;
|

This is due to the fact that `match` is a void* while `enum repaper_model`
has the size of an int.

Add uintptr_t cast to silence clang warning while also keeping enum cast
for readability and consistency with other `model` assignment just a
few lines below:
|       model = (enum repaper_model)spi_id->driver_data;

Link: https://github.com/ClangBuiltLinux/linux/issues/1910
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230816-void-drivers-gpu-drm-tiny-repaper-v1-1-9d8d10f0d52f@google.com
2023-08-25 13:13:20 +02:00
Yue Haibing
17c35883cf drm/gma500: Remove unused declarations
These declarations are not implemented now, remove them.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230817133754.36524-1-yuehaibing@huawei.com
2023-08-25 08:48:18 +02:00
Sui Jingfeng
da596080b2 drm/gma500: Fix call trace when psb_gem_mm_init() fails
Because the gma_irq_install() is call after psb_gem_mm_init() function,
when psb_gem_mm_init() fails, the interrupt line haven't been allocated.
Yet the gma_irq_uninstall() is called in the psb_driver_unload() function
without checking if checking the irq is registered or not.

The calltrace is appended as following:

[   20.539253] ioremap memtype_reserve failed -16
[   20.543895] gma500 0000:00:02.0: Failure to map stolen base.
[   20.565049] ------------[ cut here ]------------
[   20.565066] Trying to free already-free IRQ 16
[   20.565087] WARNING: CPU: 1 PID: 381 at kernel/irq/manage.c:1893 free_irq+0x209/0x370
[   20.565316] CPU: 1 PID: 381 Comm: systemd-udevd Tainted: G         C         6.5.0-rc1+ #368
[   20.565329] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./IMB-140D Plus, BIOS P1.10 11/18/2013
[   20.565338] RIP: 0010:free_irq+0x209/0x370
[   20.565357] Code: 41 5d 41 5e 41 5f 5d 31 d2 89 d1 89 d6 89 d7 41 89 d1 c3 cc cc cc cc 8b 75 d0 48 c7 c7 e0 77 12 9f 4c 89 4d c8 e8 57 fe f4 ff <0f> 0b 48 8b 75 c8 4c 89 f7 e8 29 f3 f1 00 49 8b 47 40 48 8b 40 78
[   20.565369] RSP: 0018:ffffae3b40733808 EFLAGS: 00010046
[   20.565382] RAX: 0000000000000000 RBX: ffff9f8082bfe000 RCX: 0000000000000000
[   20.565390] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   20.565397] RBP: ffffae3b40733840 R08: 0000000000000000 R09: 0000000000000000
[   20.565405] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9f80871c3100
[   20.565413] R13: ffff9f80835d3360 R14: ffff9f80835d32a4 R15: ffff9f80835d3200
[   20.565424] FS:  00007f13d36458c0(0000) GS:ffff9f8138880000(0000) knlGS:0000000000000000
[   20.565434] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.565441] CR2: 00007f0d046f3f20 CR3: 0000000006c8c000 CR4: 00000000000006e0
[   20.565450] Call Trace:
[   20.565458]  <TASK>
[   20.565470]  ? show_regs+0x72/0x90
[   20.565488]  ? free_irq+0x209/0x370
[   20.565504]  ? __warn+0x8d/0x160
[   20.565520]  ? free_irq+0x209/0x370
[   20.565536]  ? report_bug+0x1bb/0x1d0
[   20.565555]  ? handle_bug+0x46/0x90
[   20.565572]  ? exc_invalid_op+0x19/0x80
[   20.565587]  ? asm_exc_invalid_op+0x1b/0x20
[   20.565607]  ? free_irq+0x209/0x370
[   20.565625]  ? free_irq+0x209/0x370
[   20.565644]  gma_irq_uninstall+0x15b/0x1e0 [gma500_gfx]
[   20.565728]  psb_driver_unload+0x27/0x190 [gma500_gfx]
[   20.565800]  psb_pci_probe+0x5d2/0x790 [gma500_gfx]
[   20.565873]  local_pci_probe+0x48/0xb0
[   20.565892]  pci_device_probe+0xc8/0x280
[   20.565912]  really_probe+0x1d2/0x440
[   20.565929]  __driver_probe_device+0x8a/0x190
[   20.565944]  driver_probe_device+0x23/0xd0
[   20.565957]  __driver_attach+0x10f/0x220
[   20.565971]  ? __pfx___driver_attach+0x10/0x10
[   20.565984]  bus_for_each_dev+0x7a/0xe0
[   20.566002]  driver_attach+0x1e/0x30
[   20.566014]  bus_add_driver+0x127/0x240
[   20.566029]  driver_register+0x64/0x140
[   20.566043]  ? __pfx_psb_init+0x10/0x10 [gma500_gfx]
[   20.566111]  __pci_register_driver+0x68/0x80
[   20.566128]  psb_init+0x2c/0xff0 [gma500_gfx]
[   20.566194]  do_one_initcall+0x46/0x330
[   20.566214]  ? kmalloc_trace+0x2a/0xb0
[   20.566233]  do_init_module+0x6a/0x270
[   20.566250]  load_module+0x207f/0x23a0
[   20.566278]  init_module_from_file+0x9c/0xf0
[   20.566293]  ? init_module_from_file+0x9c/0xf0
[   20.566315]  idempotent_init_module+0x184/0x240
[   20.566335]  __x64_sys_finit_module+0x64/0xd0
[   20.566352]  do_syscall_64+0x59/0x90
[   20.566366]  ? ksys_mmap_pgoff+0x123/0x270
[   20.566378]  ? __secure_computing+0x9b/0x110
[   20.566392]  ? exit_to_user_mode_prepare+0x39/0x190
[   20.566406]  ? syscall_exit_to_user_mode+0x2a/0x50
[   20.566420]  ? do_syscall_64+0x69/0x90
[   20.566433]  ? do_syscall_64+0x69/0x90
[   20.566445]  ? do_syscall_64+0x69/0x90
[   20.566458]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   20.566472] RIP: 0033:0x7f13d351ea3d
[   20.566485] Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c3 a3 0f 00 f7 d8 64 89 01 48
[   20.566496] RSP: 002b:00007ffe566c1fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   20.566510] RAX: ffffffffffffffda RBX: 000055e66806eec0 RCX: 00007f13d351ea3d
[   20.566519] RDX: 0000000000000000 RSI: 00007f13d36d9441 RDI: 0000000000000010
[   20.566527] RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000002
[   20.566535] R10: 0000000000000010 R11: 0000000000000246 R12: 00007f13d36d9441
[   20.566543] R13: 000055e6681108c0 R14: 000055e66805ba70 R15: 000055e66819a9c0
[   20.566559]  </TASK>
[   20.566566] ---[ end trace 0000000000000000 ]---

Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230727185855.713318-1-suijingfeng@loongson.cn
2023-08-25 08:48:18 +02:00
Jorge Maidana
afcacac4be drm/gma500: remove duplicate macro definitions
Remove identical duplicate block of macro definitions in
drivers/gpu/drm/gma500/psb_drv.h.

Signed-off-by: Jorge Maidana <jorgem.linux@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230725173107.9593-1-jorgem.linux@gmail.com
2023-08-25 08:48:17 +02:00
Danilo Krummrich
b715dcd3db drm/nouveau: uapi: don't pass NO_PREFETCH flag implicitly
Currently, NO_PREFETCH is passed implicitly through
drm_nouveau_gem_pushbuf_push::length and drm_nouveau_exec_push::va_len.

Since this is a direct representation of how the HW is programmed it
isn't really future proof for a uAPI. Hence, fix this up for the new
uAPI and split up the va_len field of struct drm_nouveau_exec_push,
such that we keep 32bit for va_len and 32bit for flags.

For drm_nouveau_gem_pushbuf_push::length at least provide
NOUVEAU_GEM_PUSHBUF_NO_PREFETCH to indicate the bit shift.

While at it, fix up nv50_dma_push() as well, such that the caller
doesn't need to encode the NO_PREFETCH flag into the length parameter.

Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230823181746.3446-1-dakr@redhat.com
2023-08-24 01:43:00 +02:00
Danilo Krummrich
b4e9fa9335 drm/nouveau: uvmm: fix unset region pointer on remap
Transfer the region pointer of a uvma to the new uvma(s) on re-map to
prevent potential shader faults when the re-mapped uvma(s) are unmapped.

Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230820222920.2344-1-dakr@redhat.com
2023-08-22 19:32:22 +02:00
Danilo Krummrich
7baf605564 drm/nouveau: sched: avoid job races between entities
If a sched job depends on a dma-fence from a job from the same GPU
scheduler instance, but a different scheduler entity, the GPU scheduler
does only wait for the particular job to be scheduled, rather than for
the job to fully complete. This is due to the GPU scheduler assuming
that there is a scheduler instance per ring. However, the current
implementation, in order to avoid arbitrary amounts of kthreads, has a
single scheduler instance while scheduler entities represent rings.

As a workaround, set the DRM_SCHED_FENCE_DONT_PIPELINE for all
out-fences in order to force the scheduler to wait for full job
completion for dependent jobs from different entities and same scheduler
instance.

There is some work in progress [1] to address the issues of firmware
schedulers; once it is in-tree the scheduler topology in Nouveau should
be re-worked accordingly.

[1] https://lore.kernel.org/dri-devel/20230801205103.627779-1-matthew.brost@intel.com/

Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collaboralcom>
Link: https://patchwork.freedesktop.org/patch/msgid/20230811010632.2473-1-dakr@redhat.com
2023-08-22 19:32:13 +02:00
Ruan Jinjie
d7a407bc9b drm/panfrost: Do not check for 0 return after calling platform_get_irq_byname()
It is not possible for platform_get_irq_byname() to return 0.
Use the return value from platform_get_irq_byname().

Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230803040401.3067484-2-ruanjinjie@huawei.com
2023-08-21 15:11:27 +01:00
Diogo Ivo
25205087df drm/panel: Add driver for JDI LPM102A188A
The JDI LPM102A188A is a 2560x1800 IPS panel found in the Google Pixel C.
This driver is based on the downstream GPLv2 driver released by Google
written by Sean Paul [1], which was then adapted to the newer kernel APIs.

[1]: https://android.googlesource.com/kernel/tegra/+/refs/heads/android-tegra-dragon-3.18-oreo/drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c

Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230807133307.27456-3-diogo.ivo@tecnico.ulisboa.pt
2023-08-16 18:54:42 +02:00
David Heidelberg
f5d8f9c0d8 drm/panel: JDI LT070ME05000 simplify with dev_err_probe()
Use the dev_err_probe() helper to simplify error handling during probe.
This also handle scenario, when EDEFER is returned and useless error is printed.

Fixes error:
panel-jdi-lt070me05000 4700000.dsi.0: cannot get enable-gpio -517

Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230812185239.378582-1-david@ixit.cz
2023-08-14 14:44:30 +02:00
David Heidelberg
d19859a042 drm/panel: JDI LT070ME05000 drop broken link
Link is no longer functional and web.archive.org doesn't provide PDF
with detail information.

Some informations can be found from web.archive.org here:
https://web.archive.org/web/20170629205602/http://panelone.net/en/7-0-inch/JDI_LT070ME05000_7.0_inch-datasheet

Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230812183404.374718-1-david@ixit.cz
2023-08-14 14:43:50 +02:00
Thomas Weber
637d3fdc10 drm/panel: simple: Add support for Mitsubishi AA084XE01
Add support for the Mitsubishi AA084XE01 panel which is an 8.4 inch XGA
TFT-LCD module for industrial use.

Link: https://www.mouser.fr/datasheet/2/274/aa084xe01_e-364171.pdf
Signed-off-by: Thomas Weber <thomas.weber@corscience.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230807123138.67443-2-miquel.raynal@bootlin.com
2023-08-14 14:43:20 +02:00
Liu Ying
199cf07ebd drm/bridge: panel: Add a device link between drm device and panel device
Add the device link when panel bridge is attached and delete the link
when panel bridge is detached.  The drm device is the consumer while
the panel device is the supplier.  This makes sure that the drm device
suspends eariler and resumes later than the panel device, hence resolves
problems where the order is reversed, like the problematic case mentioned
in the below link.

Link: https://lore.kernel.org/lkml/CAPDyKFr0XjrU_udKoUKQ_q8RWaUkyqL+8fV-7s1CTMqi7u3-Rg@mail.gmail.com/T/
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230807061115.3244501-1-victor.liu@nxp.com
2023-08-14 14:41:18 +02:00
Jonas Karlman
4d49d87b36 drm/rockchip: vop2: Add missing call to crtc reset helper
Add missing call to crtc reset helper to properly vblank reset.

Also move vop2_crtc_reset and call vop2_crtc_destroy_state to simplify
and remove duplicated code.

Fixes: 604be85547 ("drm/rockchip: Add VOP2 driver")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230621223311.2239547-6-jonas@kwiboo.se
2023-08-12 23:53:36 +02:00
Jonas Karlman
342f7e4967 drm/rockchip: vop2: Don't crash for invalid duplicate_state
It's possible for users to try to duplicate the CRTC state even when the
state doesn't exist. drm_atomic_helper_crtc_duplicate_state() (and other
users of __drm_atomic_helper_crtc_duplicate_state()) already guard this
with a WARN_ON() instead of crashing, so let's do that here too.

Fixes: 604be85547 ("drm/rockchip: Add VOP2 driver")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230621223311.2239547-5-jonas@kwiboo.se
2023-08-12 23:53:36 +02:00
Jonas Karlman
5aacd29083 drm/rockchip: vop: Fix call to crtc reset helper
Allocation of crtc_state may fail in vop_crtc_reset, causing an invalid
pointer to be passed to __drm_atomic_helper_crtc_reset.

Fix this by adding a NULL check of crtc_state, similar to other drivers.

Fixes: 01e2eaf40c ("drm/rockchip: Convert to using __drm_atomic_helper_crtc_reset() for reset.")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230621223311.2239547-4-jonas@kwiboo.se
2023-08-12 23:53:35 +02:00
Jonas Karlman
800f7c332d drm/rockchip: vop: Use cleanup helper directly as destroy funcs
vop_plane_destroy and vop_crtc_destroy are plain wrappers around
drm_plane_cleanup and drm_crtc_cleanup. Use them directly as plane and
crtc funcs to closer match VOP2 driver.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230621223311.2239547-3-jonas@kwiboo.se
2023-08-12 23:53:34 +02:00
Jonas Karlman
13fc28804b drm/rockchip: vop: Fix reset of state in duplicate state crtc funcs
struct rockchip_crtc_state members such as output_type, output_bpc and
enable_afbc is always reset to zero in the atomic_duplicate_state crtc
funcs.

Fix this by using kmemdup on the subclass rockchip_crtc_state struct.

Fixes: 4e257d9eee ("drm/rockchip: get rid of rockchip_drm_crtc_mode_config")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230621223311.2239547-2-jonas@kwiboo.se
2023-08-12 23:53:32 +02:00
Harshit Mogalapalli
5976a28b34 drm/loongson: Fix error handling in lsdc_pixel_pll_setup()
There are two problems in lsdc_pixel_pll_setup()
1. If kzalloc() fails then call iounmap() to release the resources.
2. Both kzalloc and ioremap does not return error pointers on failure, so
   using IS_ERR_OR_NULL() checks is a bit confusing and not very right,
   fix this by changing those to NULL checks instead.

Fixes: f39db26c54 ("drm: Add kms driver for loongson display controller")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Link: https://patchwork.freedesktop.org/patch/msgid/20230720123950.543082-1-harshit.m.mogalapalli@oracle.com
2023-08-12 09:58:07 +08:00
Alexander Stein
b31f784fff drm/bridge: lvds-codec: Implement atomic_get_input_bus_fmts for LVDS encoder
atomic_get_input_bus_fmts is only implemented for LVDS decoders, resulting
that LVDS encoders only support bus format MEDIA_BUS_FMT_FIXED. This
results in warnings like:
mxsfb 21c8000.lcdif: Bridge does not provide bus format, assuming
 MEDIA_BUS_FMT_RGB888_1X24.
Please fix bridge driver by handling atomic_get_input_bus_fmts.

Fix this by reusing lvds_codec_atomic_get_input_bus_fmts currently used
for LVDS decoders. Use RGB888_1X24 for LVDS encoders. This also allows
removing the dedicated struct drm_bridge_funcs for decoders.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230810063229.597533-1-alexander.stein@ew.tq-group.com
2023-08-11 15:09:59 +02:00
Marek Szyprowski
15f389da11 drm: bridge: samsung-dsim: Fix waiting for empty cmd transfer FIFO on older Exynos
Samsung DSIM used in older Exynos SoCs (like Exynos 4210, 4x12, 3250)
doesn't report empty level of packer header FIFO. In case of those SoCs,
use the old way of waiting for empty command tranfsfer FIFO, removed
recently by commit 14806c6415 ("drm: bridge: samsung-dsim: Drain command transfer FIFO before transfer").

Fixes: 14806c6415 ("drm: bridge: samsung-dsim: Drain command transfer FIFO before transfer")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230809145641.3213210-1-m.szyprowski@samsung.com
2023-08-11 14:54:05 +02:00
Randy Dunlap
96413b355a drm: bridge: for GENERIC_PHY_MIPI_DPHY also select GENERIC_PHY
Three DRM bridge drivers select GENERIC_PHY_MIPI_DPHY when GENERIC_PHY
might not be set.  This causes Kconfig warnings and a build error.

WARNING: unmet direct dependencies detected for GENERIC_PHY_MIPI_DPHY
  Depends on [n]: GENERIC_PHY [=n]
  Selected by [y]:
  - DRM_NWL_MIPI_DSI [=y] && DRM_BRIDGE [=y] && DRM [=y] && COMMON_CLK [=y] && OF [=y] && HAS_IOMEM [=y]
  - DRM_SAMSUNG_DSIM [=y] && DRM [=y] && DRM_BRIDGE [=y] && COMMON_CLK [=y] && OF [=y] && HAS_IOMEM [=y]

(drm/bridge/cadence/Kconfig was found by inspection.)

aarch64-linux-ld: drivers/gpu/drm/bridge/samsung-dsim.o: in function `samsung_dsim_set_phy_ctrl':
drivers/gpu/drm/bridge/samsung-dsim.c:731: undefined reference to `phy_mipi_dphy_get_default_config_for_hsclk'

Prevent these warnings and build error by also selecting GENERIC_PHY
whenever selecting GENERIC_PHY_MIPI_DPHY.

Fixes: fced5a364d ("drm/bridge: cdns: Convert to phy framework")
Fixes: 44cfc62334 ("drm/bridge: Add NWL MIPI DSI host controller support")
Fixes: 171b3b1e0f ("drm: bridge: samsung-dsim: Select GENERIC_PHY_MIPI_DPHY")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Aleksandr Nogikh <nogikh@google.com>
Link: lore.kernel.org/r/20230803144227.2187749-1-nogikh@google.com
Cc: Adam Ford <aford173@gmail.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Robert Chiras <robert.chiras@nxp.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Robert Foss <rfoss@kernel.org>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Adam Ford <aford173@gmail.com>
Tested-by: Aleksandr Nogikh <nogikh@google.com>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804030140.21395-1-rdunlap@infradead.org
2023-08-11 14:42:50 +02:00
Marek Vasut
192948f6a9 drm: bridge: samsung-dsim: Initialize ULPS EXIT for i.MX8M DSIM
The ULPS EXIT is initialized to 0xaf in downstream BSP as well as older
revisions of this patchset, in newer revisions of the DSIM patchset it
was left out and set to 0. Fix it.

Fixes: 4d562c70c4 ("drm: bridge: samsung-dsim: Add i.MX8M Mini/Nano support")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230709134827.449185-1-marex@denx.de
2023-08-11 14:22:48 +02:00
Karolina Stolarek
78f46ecd9b drm/ttm/tests: Require MMU when testing
Satisfy MMU dependency when testing TTM with KUnit. This fixes
compilation errors on platforms that don't select this option
by default.

Signed-off-by: Karolina Stolarek <karolina.stolarek@intel.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308110133.f0lhFwMV-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202308111032.enU8IisR-lkp@intel.com/
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230811113649.697886-1-karolina.stolarek@intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>
2023-08-11 14:11:53 +02:00
Dave Airlie
68132cc6d1 nouveau/u_memcpya: use vmemdup_user
I think there are limit checks in place for most things but the
new uAPI wants to not have them.

Add a limit check and use the vmemdup_user helper instead.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230810185020.231135-1-airlied@gmail.com
2023-08-11 00:00:44 +02:00
Jagan Teki
11fdb231f4 drm/rockchip: dsi: Add rv1126 MIPI DSI support
RV1126 MIPI DSI supports V1.2 DPHY with 4 lanes and 1Gbps transfer
rate for lane.

Add support for it.

Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230731110012.2913742-9-jagan@edgeble.ai
2023-08-10 22:54:46 +02:00
Jagan Teki
3c3cfcb93f drm/rockchip: vop: Add rv1126 vop_lite support
RV1126 VOP_LITE supports the video output processing ofMIPI DSI,
RGB display interfaces with max output resolution of 1920x1080.

Add support for rv1126 vop.

Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230731110012.2913742-7-jagan@edgeble.ai
2023-08-10 22:54:44 +02:00
Danilo Krummrich
806fd6d005 drm/test: drm_exec: fix memory leak on object prepare
drm_exec_prepare_obj() and drm_exec_prepare_array() both reserve
dma-fence slots and hence a dma_resv_list without ever freeing it.

Make sure to call drm_gem_private_object_fini() for each GEM object
passed to drm_exec_prepare_obj()/drm_exec_prepare_array() throughout the
test to fix this up.

While at it, remove some trailing empty lines.

Fixes: 9710631cc8 ("drm: add drm_exec selftests v4")
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230809225034.8803-1-dakr@redhat.com
Signed-off-by: Christian König <christian.koenig@amd.com>
2023-08-10 09:01:00 +02:00