kernel/linux.git/drivers/staging/media, branch v6.18.21

media: tegra-video: Fix memory leak in __tegra_channel_try_format()

2026-03-12T11:09:26+00:00

[ Upstream commit 43e5302d22334f1183dec3e0d5d8007eefe2817c ] The state object allocated by __v4l2_subdev_state_alloc() must be freed with __v4l2_subdev_state_free() when it is no longer needed. In __tegra_channel_try_format(), two error paths return directly after v4l2_subdev_call() fails, without freeing the allocated 'sd_state' object. This violates the requirement and causes a memory leak. Fix this by introducing a cleanup label and using goto statements in the error paths to ensure that __v4l2_subdev_state_free() is always called before the function returns. Fixes: 56f64b82356b7 ("media: tegra-video: Use zero crop settings if subdev has no get_selection") Fixes: 1ebaeb09830f3 ("media: tegra-video: Add support for external sensor capture") Cc: stable@vger.kernel.org Signed-off-by: Zilin Guan Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin

media: staging/ipu7: Fix the loop bound in l2 table alloc

2026-03-04T12:21:04+00:00

[ Upstream commit 98cc19a353abc8b48b7d58fd7a455e09e7c3aba3 ] This patch fixes the incorrect loop bound in alloc_l2_pt(). When initializing L2 page table entries, the loop was incorrectly using ISP_L1PT_PTES instead of ISP_L2PT_PTES though the ISP_L1PT_PTES is equal to ISP_L2PT_PTES. Fixes: 71d81c25683a ("media: staging/ipu7: add IPU7 DMA APIs and MMU mapping") Cc: stable@vger.kernel.org Signed-off-by: Bingbu Cao Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin

media: staging/ipu7: Update CDPHY register settings

2026-03-04T12:21:04+00:00

[ Upstream commit f7923e6bafcad686adb51cc100ba1860f8b43922 ] Some CPHY settings needs to updated according to the latest guide from SNPS. This patch program 45ohm for tuning resistance to fix CPHY problem and update the ITMINRX and GMODE for CPHY. Cc: Stable@vger.kernel.org Fixes: a516d36bdc3d ("media: staging/ipu7: add IPU7 input system device driver") Signed-off-by: Bingbu Cao Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin

media: staging/ipu7: Call synchronous RPM suspend in probe failure

2026-03-04T12:21:04+00:00

[ Upstream commit 1433e6ccc25e9ea596683ab66e1c51f37fc7d491 ] If firmware authentication failed during driver probe, driver call an asynchronous API to suspend the psys device but the bus device will be removed soon, thus runtime PM of bus device will be disabled soon, that will cancel the suspend request, so use synchronous suspend to make sure the runtime suspend before disabling its RPM. IPU7 hardware has constraints that the PSYS device must be powered off before ISYS, otherwise it will cause machine check error. Cc: Stable@vger.kernel.org Fixes: b7fe4c0019b1 ("media: staging/ipu7: add Intel IPU7 PCI device driver") Signed-off-by: Bingbu Cao Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin

media: staging/ipu7: Ignore interrupts when device is suspended

2026-03-04T12:21:04+00:00

[ Upstream commit 9ad65684b9285c5d66fb417d50e91a25ef8c994d ] IPU7 devices have shared interrupts with others. In some case when IPU7 device is suspended, driver get unexpected interrupt and invalid irq status 0xffffffff from ISR_STATUS and PB LOCAL_STATUS registers as interrupt is triggered from other device on shared irq line. In order to avoid this issue use pm_runtime_get_if_active() to check if IPU7 device is resumed, ignore the invalid irq status and use synchronize_irq() in suspend. Cc: Stable@vger.kernel.org Fixes: b7fe4c0019b1 ("media: staging/ipu7: add Intel IPU7 PCI device driver") Signed-off-by: Bingbu Cao Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin

media: staging/ipu7: fix isys device runtime PM usage in firmware closing

2025-09-10T08:40:53+00:00

The PM usage counter of isys was bumped up when start camera stream (opening firmware) but it was not dropped after stream stop(closing firmware), it forbids system fail to suspend due to the wrong PM state of ISYS. This patch drop the PM usage counter in firmware close to fix it. Cc: Stable@vger.kernel.org Fixes: a516d36bdc3d ("media: staging/ipu7: add IPU7 input system device driver") Signed-off-by: Bingbu Cao Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil

media: staging: ipu7: Don't include linux/version.h

2025-09-09T13:59:16+00:00

linux/version.h isn't needed by the driver, don't include it. Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil

media: atomisp: Fix incorrect snprintf format specifiers for signed integers

2025-08-29T09:04:02+00:00

There are incorrect %u format specifiers being used to for signed integers, fix this by using %d instead. Signed-off-by: Colin Ian King Signed-off-by: Hans Verkuil

staging: media: tegra-video: use BIT() macro instead of shift

2025-08-29T09:04:02+00:00

Replace two instances of (1 << X) with BIT(X) in tegra20.c to follow kernel coding style guidelines and improve clarity. The BIT() macro also ensures proper type handling for larger shifts. Signed-off-by: A.T. Jefferies Signed-off-by: Hans Verkuil

media: staging/ipu7: cleanup the MMU correctly in IPU7 driver release

2025-08-25T13:40:43+00:00

IPU7 ISYS and PSYS auxiliary devices are released after ipu7_bus_del_devices(), so driver can not reference the MMU devices from ISYS and PSYS auxiliary devices, so move the MMUs cleanup before releasing the auxiliary devices. Fixes: b7fe4c0019b1 ("media: staging/ipu7: add Intel IPU7 PCI device driver") Signed-off-by: Bingbu Cao [Sakari Ailus: Drop extra newline.] Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil