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The kernel does not permit a device to register multiple sys-off
handlers for non-default priority levels. Hence, for multi-socket Tegra
devices, registering the sys-off handler in the Tegra PMC driver (which
uses the low priority level) more than once fails.
The Tegra PMC sys-off handler is supported for all current generations
of the Tegra SoC, however, it is only used as a low priority handler if
everything else fails. For example, on Tegra264 the EFI reboot handler
is called to restart the device. Therefore, for multi-socket devices,
skip the registering of the sys-off handler to because this is not
critical.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Remove the unnecessary space after a cast in _rtw_init_recv_priv() to fix
a checkpatch.pl coding style warning.
Signed-off-by: Jason Winter <jjx@live.nl>
Link: https://patch.msgid.link/BESP194MB2832DD527B23F20198ECDD9CB8FB2@BESP194MB2832.EURP194.PROD.OUTLOOK.COM
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A couple of runs of different AI tools have generated something like the
following bug report:
In nested_domain_free(), when refcount_dec_and_test() returns false
(other nested domains still reference the same gdom_info), the function
returns without calling kfree(ndom), leaking the nested_domain
structure. This problem wasn't introduced by this patch, but exists in
the code from commit 757d2b1fdf5b that the patch modifies. Each
nested_domain (ndom) is allocated individually in
amd_iommu_alloc_domain_nested() via kzalloc_obj(*ndom). The .free
callback is the sole point responsible for freeing this domain. When
the refcount is > 0, only the xa_unlock_irqrestore is performed and the
function returns, leaving ndom permanently allocated. This leak occurs
every time a nested domain sharing a gDomID is destroyed while other
domains still use that gDomID.
There is a similar leak later in this function in the WARN_ON() test when
the mapping is already NULL. Switch to a RAII-based cleanup for ndom, since
it should always be freed in this function.
Fixes: 757d2b1fdf5b ("iommu/amd: Introduce gDomID-to-hDomID Mapping and handle parent domain invalidation")
Signed-off-by: Tycho Andersen (AMD) <tycho@kernel.org>
Reviewed-by: Ankit Soni <Ankit.Soni@amd.com>
Signed-off-by: Will Deacon <will@kernel.org>
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Lockdep complains:
[ 259.410489] =====================================================
[ 259.417287] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
[ 259.424667] 7.0.0-g51db1d8d2113 #54 Not tainted
[ 259.429718] -----------------------------------------------------
[ 259.436516] qemu-system-x86/10143 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[ 259.444670] ff3b2b1c60305170 (&xa->xa_lock#25){+.+.}-{3:3}, at: __domain_flush_pages+0x17c/0x4b0
[ 259.454485]
and this task is already holding:
[ 259.460991] ff3b2b1c98504cc0 (&domain->lock){-.-.}-{3:3}, at: amd_iommu_iotlb_sync+0x25/0x60
[ 259.470408] which would create a new lock dependency:
[ 259.476041] (&domain->lock){-.-.}-{3:3} -> (&xa->xa_lock#25){+.+.}-{3:3}
[ 259.483615]
but this new dependency connects a HARDIRQ-irq-safe lock:
[ 259.492447] (&domain->lock){-.-.}-{3:3}
[ 259.492449]
... which became HARDIRQ-irq-safe at:
[ 259.503705] lock_acquire+0xb6/0x2e0
[ 259.507790] _raw_spin_lock_irqsave+0x3e/0x60
[ 259.512748] amd_iommu_flush_iotlb_all+0x20/0x50
[ 259.517996] iommu_dma_free_iova.isra.0+0x1b8/0x1e0
[ 259.523534] __iommu_dma_unmap+0xc2/0x140
[ 259.528100] iommu_dma_unmap_phys+0x55/0xc0
[ 259.532863] dma_unmap_phys+0x274/0x2e0
[ 259.537238] dma_unmap_page_attrs+0x17/0x30
[ 259.542000] nvme_unmap_data+0x13e/0x280
[ 259.546473] nvme_pci_complete_batch+0x45/0x70
[ 259.551524] nvme_irq+0x83/0x90
[ 259.555123] __handle_irq_event_percpu+0x92/0x360
[ 259.560466] handle_irq_event+0x39/0x80
[ 259.564841] handle_edge_irq+0xb2/0x1a0
[ 259.569214] __common_interrupt+0x4e/0x130
[ 259.573882] common_interrupt+0x88/0xa0
[ 259.578256] asm_common_interrupt+0x27/0x40
[ 259.583019] cpuidle_enter_state+0x119/0x5d0
[ 259.587877] cpuidle_enter+0x2e/0x50
[ 259.591962] do_idle+0x153/0x2c0
[ 259.595657] cpu_startup_entry+0x29/0x30
[ 259.600128] start_secondary+0x118/0x150
[ 259.604601] common_startup_64+0x13e/0x141
[ 259.609266]
to a HARDIRQ-irq-unsafe lock:
[ 259.615384] (&xa->xa_lock#25){+.+.}-{3:3}
[ 259.615386]
... which became HARDIRQ-irq-unsafe at:
[ 259.627039] ...
[ 259.627039] lock_acquire+0xb6/0x2e0
[ 259.633071] _raw_spin_lock+0x2f/0x50
[ 259.637250] amd_iommu_alloc_domain_nested+0x140/0x3c0
[ 259.643078] iommufd_hwpt_alloc+0x272/0x800 [iommufd]
[ 259.648813] iommufd_fops_ioctl+0x14e/0x200 [iommufd]
[ 259.654547] __x64_sys_ioctl+0x9d/0xf0
...
Since amd_iommu_domain_flush_pages() necessarily holds domain->lock to do the
flush, switch the allocation side in gdom_info_load_or_alloc_locked() to
HARDIRQ-safe allocation. The IOMMU_DESTROY->free path has the same issue,
so switch that path to HARDIRQ-safe locking as well.
Fixes: 757d2b1fdf5b ("iommu/amd: Introduce gDomID-to-hDomID Mapping and handle parent domain invalidation")
Signed-off-by: Tycho Andersen (AMD) <tycho@kernel.org>
Reviewed-by: Ankit Soni <Ankit.Soni@amd.com>
Signed-off-by: Will Deacon <will@kernel.org>
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Since commit 860e748bddcc ("drm: ensure blend mode supported if pixel
format with alpha exposed"), drm_mode_config_validate() warns when a
plane exposes an alpha pixel format but not the "pixel blend mode"
property. The cursor (ARGB8888, all platforms) and the VLV/CHV primary
and sprite planes trip this.
Userspace has historically assumed premultiplied blending when the
property is not attached, so it is safe to assume that planes that
did not expose the property already blended with fixed pre-multiplied
alpha in hardware. Therefore, expose a "pixel blend mode" property
advertising only DRM_MODE_BLEND_PREMULTI to match that assumption and
silence the warning. The cursor call is unconditional; the primary and
sprite calls are gated to VLV/CHV, the only platforms whose format lists
include alpha formats.
Assisted-by: Claude:claude-opus-4-8
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Leandro Ribeiro <leandro.ribeiro@collabora.com>
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/work_items/16623
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260715054221.451421-1-chaitanya.kumar.borah@intel.com
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A full GPU reset is the only way to disable the MMUv2 and the
driver depends on the MMU being disabled after a reset to be able
to properly restart the GPU. Validate this assumption by checking
that the reset actually did disable the MMU.
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Link: https://patch.msgid.link/20260511085148.652256-2-l.stach@pengutronix.de
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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While the FE is an important part of the GPU, which needs to be idle
after reset, all other modules should be idle after a proper reset.
Check all present modules for being idle to determine whether the
reset was successful.
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Link: https://patch.msgid.link/20260511085148.652256-1-l.stach@pengutronix.de
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 7.2, take #2
- Move locking for kvm_io_bus_get_dev() into the caller, ensuring
race-free checks that the returned object is of the correct type
- Fix initialisation of the page-table walk level when relaxing
permissions
- Correctly update the XN attribute when relaxing permissions
- Fix the sign extension of loads from emulated MMIO regions
- Assorted collection of fixes for pKVM's FFA proxy, together with a
couple of FFA driver adjustments
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Merge the mmc fixes for v7.2-rc[n] into the next branch, to allow them to
get tested together with the mmc changes that are targeted for the next
release.
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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The dw_mci_pmops is exported out of dw_mmc.c so move the declaration of
ton dw_mmc.h from dw_mmc-pltfm.h to fix the following sparse warning:
drivers/mmc/host/dw_mmc.c:3512:25: warning: symbol 'dw_mci_pmops' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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On Xe3+, the SoC can lower the fabric frequency when the display
needs less bandwidth than the minimum GV point. This threshold is
defined as 20 GB/s. The driver can choose to request this threshold
when the required data rate falls below it.
Add an extra QGV entry, with both peak bw and derated bw set to
20 GB/s, to the bandwidth info when all of the following hold:
1. The platform is Xe3+.
2. There is at least one existing QGV point.
3. The number of QGV points is below 8 (the maximum).
Once a plane group is found, the driver iterates over all QGV points
in that group to find the best match for the required data rate. If
the required data rate is below 20 GB/s, it selects the peak bw from
this new QGV point (20 GB/s).
v2: add the peak bandwidth threshold as an additional QGV entry
v3: drm_warn switched to drm_dbg_kms (Suraj)
Removed log in case of no sagv and some tweak in the log message
if the system has already the maximum number of QGV points
Bspec: 68880
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260615203355.218578-8-vinod.govindapillai@intel.com
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Check pm_runtime_force_resume() return value in resume. If it fails
(clock enable failure), return immediately since accessing hardware
registers on an unclocked device would cause a kernel panic.
The early return intentionally skips enable_irq() and
sdhci_disable_irq_wakeups() because the IRQ handler reads
SDHCI_INT_STATUS, which would also fault without clocks. The PM runtime
usage counter leak only affects this already-broken device instance and
is an acceptable tradeoff to preserve system stability.
Remove the return value check for mmc_gpio_set_cd_wake(host->mmc, false)
since disable_irq_wake() called internally always returns 0.
Also return 0 explicitly on the success path instead of propagating
stale return values.
Fixes: 676a83855614 ("mmc: host: sdhci-esdhc-imx: refactor the system PM logic")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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Make pinctrl_pm_select_sleep_state() and mmc_gpio_set_cd_wake() failures
non-fatal in the suspend path. These failures only mean slightly higher
power consumption or missing CD wakeup capability, but should not block
system suspend.
Also change the function to always return 0 on the success path instead
of propagating non-fatal warning return values.
Fixes: 676a83855614 ("mmc: host: sdhci-esdhc-imx: refactor the system PM logic")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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Replace pm_runtime_get_sync() with pm_runtime_resume_and_get() to
simplify error handling. pm_runtime_resume_and_get() automatically
drops the usage counter on failure, avoiding the need for a separate
pm_runtime_put_noidle() call. If it fails, the device is unclocked and
accessing hardware registers would cause a kernel panic, so return the
error immediately.
Fixes: 676a83855614 ("mmc: host: sdhci-esdhc-imx: refactor the system PM logic")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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When using WIFI out-of-band wakeup, an "irq xxx: nobody cared" warning
occurs. This happens because the usdhc interrupt is not disabled during
system suspend when device_may_wakeup() returns false.
The sequence of events leading to this issue:
1. System enters suspend without disabling usdhc interrupt
(because device_may_wakeup() returns false for usdhc device)
2. WIFI out-of-band wakeup triggers system resume via GPIO interrupt
3. WIFI sends a Card interrupt before usdhc has fully resumed
4. usdhc is still in runtime suspend state and cannot handle the
interrupt properly
5. The unhandled interrupt triggers "nobody cared" warning
Fix this by unconditionally disabling the usdhc interrupt during suspend
and re-enabling it during resume, regardless of the wakeup capability.
This ensures no interrupts are processed during the suspend/resume
transition.
Fixes: 676a83855614 ("mmc: host: sdhci-esdhc-imx: refactor the system PM logic")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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SDIO devices such as WiFi may keep power during suspend, so the MMC
core skips full card re-initialization on resume and directly restores
the host controller's ios timing to match the card. For DDR mode,
pm_runtime_force_resume() sets DDR_EN before the pin configuration is
restored from sleep state.
This is related to the SoC IP integration: switching pinctrl setting
(changing alt from GPIO to USDHC) impacts the internal loopback path.
If pinctrl configures the pad to GPIO function, once DDR_EN is set, the
DLL delay will be fixed based on the GPIO function loopback path. When
the pinctrl is later changed to USDHC function, the internal loopback
path changes, making the original fixed sample point no longer suitable
for the current loopback path. This causes persistent read CRC errors on
subsequent data transfers.
SD/eMMC running in DDR mode are unaffected as they are fully
re-initialized from legacy timing after resume.
Fix this by restoring the pinctrl state based on current timing mode
using esdhc_change_pinstate() before pm_runtime_force_resume(). This
ensures the correct pin configuration (e.g., 100/200MHz for UHS modes)
is applied before DDR_EN is set. Only restore for non-wakeup devices
since wakeup devices kept their active pin state during suspend.
Fixes: 676a83855614 ("mmc: host: sdhci-esdhc-imx: refactor the system PM logic")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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Now that SAGV status update is consolidated, need to update the
SAGV status based on the number of QGV points only once after
bw info initialization is done.
v2: patch description updated.
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260615203355.218578-7-vinod.govindapillai@intel.com
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esdhc_change_pinstate() checks for pins_100mhz and pins_200mhz at the
top of the function and returns -EINVAL if either is not defined. This
prevents the default case from ever being reached, which means devices
with a sleep pinctrl state but without high-speed pin states (100mhz/
200mhz) can never restore their default pin configuration.
Move the IS_ERR checks for pins_100mhz and pins_200mhz into their
respective switch cases.
Fixes: 676a83855614 ("mmc: host: sdhci-esdhc-imx: refactor the system PM logic")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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sdhci_esdhc_imx_hwinit() unconditionally clears ESDHC_DLL_CTRL by
writing zero. For SDIO devices that keep power during system suspend
and operate in DDR mode, the card remains in DDR timing while the host
DLL override configuration is lost.
Extract the DLL override setup from esdhc_set_uhs_signaling() into
a helper esdhc_set_dll_override(), and call it on the resume path
when the card kept power and is using a DDR timing mode.
Fixes: 676a83855614 ("mmc: host: sdhci-esdhc-imx: refactor the system PM logic")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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Extract the code to update the SAGV status based on the number of
QGV points into a separate function and use it.
v2: rebase
v3: patch description updated
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260615203355.218578-6-vinod.govindapillai@intel.com
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Simplify the initialization of QGV points info by extracting
the code to initialize the QGV points info from dram info based
on the memory type. This will reduce the complexity of the init
QGV info routine as we will be supporting new memory types in
future platforms.
v2: rebase after Ville's refactoring
v3: patch description updated
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260615203355.218578-5-vinod.govindapillai@intel.com
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tuning save/restore
The tuning save/restore during system PM is conditioned on
mmc_card_wake_sdio_irq(), but this check is unrelated to whether
tuning values need to be preserved. The actual requirement is that
the card keeps power during suspend and the controller is a uSDHC.
SDIO devices using out-of-band GPIO wakeup maintain power during
suspend but do not set the SDIO IRQ wake flag. In this case the
tuning delay values are not saved/restored.
Remove the unnecessary mmc_card_wake_sdio_irq() condition from both
the suspend save and resume restore paths.
Fixes: c63d25cdc59a ("mmc: sdhci-esdhc-imx: Save tuning value when card stays powered in suspend")
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
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rxe advertises ODP but not IB_ODP_SUPPORT_IMPLICIT. The reg_user_mr path
still contained a dead branch that checked the implicit capability and
could never succeed.
Return -EOPNOTSUPP for the implicit ODP address range up front so the
intent is obvious and the unreachable code is gone.
Signed-off-by: xiongweimin <xiongweimin@kylinos.cn>
Cc: linux-rdma@vger.kernel.org
Cc: Jason Gunthorpe <jgg@nvidia.com>
Link: https://patch.msgid.link/20260713010439.331054-1-15927021679@163.com
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Correct "guarentees" to "guarantees" when describing work cancel.
Signed-off-by: xiongweimin <xiongweimin@kylinos.cn>
Link: https://patch.msgid.link/20260714024429.188276-1-15927021679@163.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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For pmdemand cases, no need to even calculate the masks based
on the qgv points index. Though the current logic avoids setting
the registers based on the pmdemand support, some qgv point masks
are compared in vain and do nothing. So leave early if pmdemand
is supported.
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260615203355.218578-4-vinod.govindapillai@intel.com
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PM demand feature introduces a new way to set bw, power and
performance requirements to pcode from display version 14 onwards.
Use an identifiable name as a macro to distinguish the pm demand
specific changes in the code.
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260615203355.218578-3-vinod.govindapillai@intel.com
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The UV/Y plane DDB entriess are never cleared on
sk_wm_plane_disable_noatomic() and can leave stale DDB state
for NV12 planes on pre-Gen11 devices
Fixes: d34b59d5ba41 ("drm/i915: Add skl_wm_plane_disable_noatomic()")
Assisted-by: Copilot:claude-sonnet-4.6
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260615203355.218578-2-vinod.govindapillai@intel.com
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Commit 173e02d67494 ("OPP: Initialize scope-based pointers inline")
added initialization for all pointers. In some cases, the ordering was
changed so that *opp_table was initialized after *opp. This also changes
the order of the registered cleanup functions.
When the cleanup happens, this can cause use-after-free errors when the
last reference is released and the release function _opp_kref_release
tries to access the already freed opp->opp_table.
Initialize *opp_table before *opp again to fix this and ensure the
correct cleanup order.
Fixes: 173e02d67494 ("OPP: Initialize scope-based pointers inline")
Signed-off-by: Gregor Herburger <gregor.herburger@linutronix.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Correct "guarentees" to "guarantees" when describing handler teardown.
Signed-off-by: xiongweimin <xiongweimin@kylinos.cn>
Link: https://patch.msgid.link/20260714024423.188238-1-15927021679@163.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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vd55g4 is the same device as vd65g4 but outputs in monochrome instead of
RGB. Adapt the driver structure according to this new variant, and add
its support.
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Apply digital gain to all channels, each channel representing a color.
Cc: stable@vger.kernel.org
Fixes: e138e7f00042 ("media: i2c: vd55g1: Add support for vd65g4 RGB variant")
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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vd55g1_update_pad_fmt() is called in vd55g1_init_state(). But
vd55g1_set_pad_fmt(), called at the end of vd55g1_init_state(), also
calls vd55g1_update_pad_fmt() itself.
Enhance readability and clear confusion by only preparing the format in
vd55g1_init_state() and let vd55g1_set_pad_fmt() update it instead,
effectively calling it only 1 time instead of 2.
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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In the driver initialization, the index of the default media bus code
from the supported media bus code array is passed directly to the
vd55g1_get_fmt_code() function instead of the proper media bus code.
This works correctly as a proper media bus code is set after
initialization but could not have been the case. This also resulted in
mutliple "Unsupported mbus format" error messages.
Retrieve the media bus code from the media bus code array, and pass this
media bus code to vd55g1_get_fmt_code() instead of the code index.
Rename VD55G1_MBUS_CODE_DEF to VD55G1_MBUS_CODE_IDX_DEF and
VD55G1_MODE_DEF to VD55G1_MODE_IDX_DEF while at it to avoid future
confusions. Display the guilty error code in warning message.
Cc: stable@vger.kernel.org
Fixes: e138e7f00042 ("media: i2c: vd55g1: Add support for vd65g4 RGB variant")
Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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ipu6_bus_initialize_device() stores the isys/psys pdata pointer in
struct ipu6_bus_device and initializes the auxiliary device. After that
point, error unwinding must drop the auxiliary device reference and let
ipu6_bus_release() free both the bus device and adev->pdata.
The isys and psys init paths already call put_device() when MMU
initialization fails, and ipu6_bus_add_device() calls
auxiliary_device_uninit() on auxiliary_device_add() failure. Both paths
therefore run the bus release callback. The extra kfree(pdata) in the
callers can release the same object a second time.
Remove the manual pdata frees after the auxiliary device has been
initialized.
This issue was found by a static analysis checker and confirmed by
manual source review.
Fixes: cb3117b074ae ("media: intel/ipu6: add IPU auxiliary devices")
Signed-off-by: Ruoyu Wang <ruoyuw560@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The sensor registers are only written in the runtime PM resume
handler; ov8865_set_fmt() merely stores the requested mode, relying on
the sensor being runtime suspended between uses so that the next
resume applies it.
That assumption breaks when something keeps the sensor powered. On
IPU3 platforms, ipu_bridge instantiates the VCM device with a
DL_FLAG_PM_RUNTIME device link to the sensor, so a userspace process
holding the VCM subdev open (e.g. wireplumber's camera monitor) pins
the sensor runtime-active. A subsequent set_fmt() then never reaches
the hardware: the sensor keeps streaming the mode programmed on the
last resume while the CSI-2 receiver expects the newly negotiated
format.
On a Surface Book 2 (IPU3, ov8865 + dw9719 VCM), requesting the
3264x2448 mode while the hardware was left programmed for the
1632x1224 binned mode makes ipu3-cio2 report "frame sync error" and
"payload length is 10340352, received 2585088" (exactly one binned
frame) for every frame, and the inverse case stalls the stream after
a single frame. Camera applications end up displaying one bogus frame
forever.
Program the sensor configuration and apply the control values on
stream start instead, where the negotiated mode is always current,
and only write the configuration in the runtime PM resume handler
when resuming with the stream already started.
Signed-off-by: Jurison Murati <eng.juri@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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ov8865_s_stream() takes a runtime PM reference when enabling the
stream, but returns without releasing it if ov8865_sw_standby()
fails, leaving the reference unbalanced and the sensor powered
indefinitely. The same applies to a failure while disabling the
stream, in which case the reference acquired at stream start is
never dropped.
Drop the reference in a single place, both when disabling the
stream and on failure, and only update the streaming state on
success.
Signed-off-by: Jurison Murati <eng.juri@gmail.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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v4l2_async_nf_add_fwnode_remote() allocates the asc, which is freed when
v4l2_async_nf_cleanup() is called.
Call v4l2_async_nf_cleanup() properly in the driver paths.
Discovered with kmemleak after rmmod:
unreferenced object 0xffff000084526b80 (size 64):
comm "modprobe", pid 185, jiffies 4295013512
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 e8 0d ff bf 00 00 ff ff ................
40 83 bc 84 00 00 ff ff 60 83 bc 84 00 00 ff ff @.......`.......
backtrace (crc ac584083):
[<00000000ffb081a7>] kmemleak_alloc+0x38/0x44
[<00000000d2fd9301>] __kmalloc+0x1b0/0x250
[<000000004dd5354d>] __v4l2_async_nf_add_fwnode+0x28/0x9c
[<0000000067587657>] __v4l2_async_nf_add_fwnode_remote+0x3c/0x64
Fixes: 392cd78d495f ("media: bcm2835-unicam: Add support for CCP2/CSI2 camera interface")
Signed-off-by: Eugen Hristev <ehristev@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Add a blank line between the local variable declarations and
the following statement in ipu_bridge_get_ivsc_acpi_dev().
Also remove an unnecessary blank line within the declaration block.
This addresses a checkpatch.pl warning.
No functional change intended.
Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Several camera sensor drivers access the "clock-frequency" property
directly to retrieve the external clock rate or handle the external
clock manually in the driver. While this is valid on a subset of ACPI
platforms, implementing this logic directly in drivers is deprecated
and can lead to inconsistent behaviour across drivers.
This driver supports ACPI platforms only. It currently retrieves the
external clock rate from the "clock-frequency" property and fails
probing if the rate does not match the expected value, which is the
correct policy for ACPI platforms.
Switch to using the devm_v4l2_sensor_clk_get() helper to standardise
clock handling. This preserves the existing behaviour on ACPI
platforms that specify a clock-frequency property without providing
a clock. On platforms that provide a clock, the helper will program
the clock to the rate specified by clock-frequency, which is also
consistent with the driver's expectations.
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Signed-off-by: Sanjay Chitroda <sanjayembeddedse@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Currently, VIDEO_AMD_ISP4_CAPTURE selects VIDEO_V4L2_SUBDEV_API without
ensuring MEDIA_CONTROLLER is enabled, causing an unmet dependency:
WARNING: unmet direct dependencies detected for VIDEO_V4L2_SUBDEV_API
Depends on [n]: MEDIA_SUPPORT [=m] && VIDEO_DEV [=m] && MEDIA_CONTROLLER [=n]
Selected by [m]:
- VIDEO_AMD_ISP4_CAPTURE [=m] && MEDIA_SUPPORT [=m] && MEDIA_PLATFORM_SUPPORT [=y] && MEDIA_PLATFORM_DRIVERS [=y] && DRM_AMDGPU [=m] && DRM_AMD_ISP [=y] && HAS_DMA [=y] && VIDEO_DEV [=m]
Many other options in this subsystem select MEDIA_CONTROLLER, let's do the
same here.
This unmet dependency bug was detected by kconfirm, a static analysis tool
for Kconfig.
Fixes: 9a54c285630c ("media: platform: amd: Introduce amd isp4 capture driver")
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Reviewed-by: Bin Du <bin.du@amd.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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In v4l2_fwnode_parse_link(), the remote endpoint fwnode reference is
acquired using fwnode_graph_get_remote_endpoint(). This reference is
properly released in the error paths, but it is leaked on the success
path.
Add the missing fwnode_handle_put() before returning 0 to prevent the
reference leak.
Signed-off-by: Biren Pandya <birenpandya@gmail.com>
Fixes: ca50c197bd96 ("[media] v4l: fwnode: Support generic fwnode for parsing standardised properties")
Cc: stable@vger.kernel.org
[Sakari Ailus: Fix subject prefix and coding style a little.]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The driver misses calling media_entity_cleanup() on the probe error path
and during remove, leaking resources if probe fails after entity
initialization or when the driver is unloaded.
Fix this by adding media_entity_cleanup() to the rdacm21_probe() error
handling path and to rdacm21_remove().
Fixes: a59f853b3b4b ("media: i2c: Add driver for RDACM21 camera module")
Signed-off-by: Biren Pandya <birenpandya@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The Dell 16 Premium DA16250 (marketed as XPS 16) has its OV02C10 front
sensor mounted upside down, like the other Dell XPS models already present
in upside_down_sensor_dmi_ids[]. The rotation is reported as 0 in both the
SSDB and the _PLD, so without a DMI quirk the image is presented upside
down.
Add a DMI quirk entry for this model so that a rotation of 180 degrees is
reported for its OVTI02C1 sensor.
Signed-off-by: Samuele Angioli <samuele.angioli@inspect.it>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The VIP driver uses v4l2_fwnode_endpoint_parse() and the
v4l2_async_nf_*() notifier APIs, but its Kconfig entry does not
select V4L2_FWNODE. Hence kernel test robot reports:
vip.c:3236: undefined reference to `v4l2_async_nf_unregister'
vip.c:3237: undefined reference to `v4l2_async_nf_cleanup'
vip.c:3339: undefined reference to `v4l2_fwnode_endpoint_parse'
vip.c:3346: undefined reference to `v4l2_async_nf_init'
vip.c:3348: undefined reference to `__v4l2_async_nf_add_fwnode'
vip.c:3357: undefined reference to `v4l2_async_nf_register'
Select V4L2_FWNODE, which in turn selects V4L2_ASYNC, providing
all the missing symbols.
Fixes: fc2873aa4a21 ("media: ti: vpe: Add the VIP driver")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202607031826.vOPABT39-lkp@intel.com/
Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Switch from s_stream to enable_streams and disable_streams callbacks.
Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Switch to using the sub-device state lock and properly call
v4l2_subdev_init_finalize() / v4l2_subdev_cleanup() on probe() /
remove().
Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Use the new common CCI register access helpers to replace the private
register access helpers in the imx412 driver. This simplifies the driver
by reducing the amount of code.
Signed-off-by: Elgin Perumbilly <elgin.perumbilly@siliconsignals.io>
Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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vidioc_s_fmt_vid_out() sizes the encoder CAPTURE buffer from the
compressed descriptor pixfmt_fwht, whose sizeimage_mult is 3:
coded_w * coded_h * 3 + sizeof(struct fwht_cframe_hdr). fwht_encode_frame()
encodes one plane per component, and an incompressible plane takes the
FWHT_FRAME_UNENCODED path in encode_plane(), copying the plane verbatim.
For a 4-component pixel format all four planes are full resolution
(width_div == height_div == 1), so a frame that forces every plane
through the unencoded fallback writes
sizeof(struct fwht_cframe_hdr) + 4 * coded_w * coded_h bytes, overrunning
the plane by coded_w * coded_h, which can result in corruption
of adjacent kernel heap memory.
Bump pixfmt_fwht.sizeimage_mult from 3 to 4, matching the largest
components_num among the supported raw formats, so the capture buffer is
always large enough for the unencoded fallback.
Fixes: 16ecf6dff97c ("media: vicodec: Add support for 4 planes formats")
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Don't populate the read-only const arrays regs on the stack at run
time, instead make them static.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20260714170258.186766-1-colin.i.king@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
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All bridge drivers have been converted to the atomic variants of the
enable, disable, pre_enable, and post_disable callbacks.
Remove the deprecated legacy hooks from drm_bridge_funcs, the
drm_bridge_is_atomic() helper that was only needed to distinguish
between atomic and non-atomic bridges, and the legacy bridge test
cases.
Since all bridges are now atomic, unconditionally initialize the
private object state at attach time.
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patch.msgid.link/20260707-drm-all-atomic-bridges-v2-37-21d03cbca446@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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