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2025-09-10media: staging/ipu7: fix isys device runtime PM usage in firmware closingBingbu Cao1-0/+1
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 <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09media: staging: ipu7: Don't include linux/version.hSakari Ailus1-1/+0
linux/version.h isn't needed by the driver, don't include it. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-08-25media: staging/ipu7: cleanup the MMU correctly in IPU7 driver releaseBingbu Cao1-3/+3
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 <bingbu.cao@intel.com> [Sakari Ailus: Drop extra newline.] Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-08-25media: staging/ipu7: Don't set name for IPU7 PCI deviceBingbu Cao1-1/+0
Driver better not dev_set_name() to change the PCI device name, so remove it. Fixes: b7fe4c0019b1 ("media: staging/ipu7: add Intel IPU7 PCI device driver") Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-08-25media: staging/ipu7: convert to use pci_alloc_irq_vectors() APIBingbu Cao1-12/+9
pci_enable_msi() is a deprecated API, thus switch to use modern pci_alloc_irq_vectors(). Fixes: b7fe4c0019b1 ("media: staging/ipu7: add Intel IPU7 PCI device driver") Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-08-25media: staging/ipu7: Use v4l2_ctrl_subdev_subscribe_event()Laurent Pinchart1-1/+1
The ipu7-isys driver uses v4l2_ctrl_subscribe_event() to handle control event subscription on a subdev. While this works, it is the wrong API. Use the subdev-specific v4l2_ctrl_subdev_subscribe_event() helper instead. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-08-25media: staging/ipu7: Disallow source multiplexingLaurent Pinchart4-60/+14
The IPU7 ISYS driver can't capture multiple streams on the same video device. Disallow source multiplexing in the routes of the internal subdev to reflect that limitation. As a result we can hardcode the source stream to 0, simplifying the driver. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-08-13media: staging: ipu7: isys: Don't set V4L2_FL_USES_V4L2_FH manuallyLaurent Pinchart1-1/+0
The V4L2_FL_USES_V4L2_FH flag is set by v4l2_fh_init(). It is not meant to be set manually by drivers. Drop it from the ipu7-isys driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-07-10media: staging/ipu7: add CONFIG_PCI dependencyArnd Bergmann1-0/+1
This driver fails to build when PCI is disabled: drivers/staging/media/ipu7/ipu7.c: In function 'ipu7_pci_config_setup': drivers/staging/media/ipu7/ipu7.c:2260:15: error: implicit declaration of function 'pci_enable_msi'; did you mean 'pci_enable_sriov'? [-Wimplicit-function-declaration] drivers/staging/media/ipu7/ipu7.c:2775:1: error: data definition has no type or storage class [-Werror] driver(ipu7_pci_driver); drivers/staging/media/ipu7/ipu7.c:2764:26: error: 'ipu7_pci_driver' defined but not used [-Werror=unused-variable] Add the required Kconfig dependency. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-07-10media: staging/ipu7: avoid division by 64-bit valueArnd Bergmann1-4/+4
On 32-bit targets, this causes a link failure: x86_64-linux-ld: drivers/staging/media/ipu7/ipu7-isys-csi-phy.o: in function `ipu7_isys_phy_config': ipu7-isys-csi-phy.c:(.text+0x1509): undefined reference to `__udivdi3' Note that this does not divide a 64-bit number by a 32-bit one as usual, but the other way round, which is something that the compiler should really be able to figure out but does not (as of gcc-15). A few lines higher, a similar division is done using the incorrect div_u64() that truncates the 64-bit divisor to 32 bits. Change both to use the safe but slow div64_u64() helper. Fixes: a516d36bdc3d ("media: staging/ipu7: add IPU7 input system device driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-07-04media: ipu7: Drop IPU8 PCI ID for nowSakari Ailus1-1/+0
This driver is intended for IPU7 at the moment so drop the IPU8 PCI ID. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-07-03media: staging/ipu7: add Makefile, Kconfig and to-do file for IPU7Bingbu Cao3-0/+69
Add Kconfig and Makefile for IPU7 driver and also update the Makefile to build the IPU7 driver. Also add a to-do file to list the TODOs. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-07-03media: staging/ipu7: add IPU7 input system device driverBingbu Cao16-4/+7033
The main input system driver mainly cover the basic hardware setup, v4l2 devices registration, firmware stream interfaces and interrupt handling. Input system CSI2 receiver is exposed as a v4l2 sub-device. Each CSI2 sub-device represent one single CSI2 hardware port which be linked with external sub-device such camera sensor by linked with ISYS CSI2's sink pad. The CSI2 source pad is linked to the sink pad of video capture device. Register V4L2 video device and setup the VB2 queues to support video capture. Video streaming callback will trigger the input system driver to construct a input system stream configuration for firmware based on data type and stream ID and then queue buffers to firmware to do capture. IPU7 CSI-2 D-PHY hardware is a Synopsys DWC MIPI CSI2 Rx IP, the driver program the DPHY to receive MIPI data from camera sensors. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-07-03media: staging/ipu7: add IPU7 firmware ABI headersBingbu Cao8-0/+1326
IPU7 firmware defines the ABIs between firmware and software, this patch adds a series of ABI headers. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-07-03media: staging/ipu7: add firmware parse, syscom interface and bootBingbu Cao6-0/+860
IPU7 irmware is generated and released as signed Code Partition Directory (CPD) format file which is aligned with the SPI flash code partition definition. The driver parses the CPD based on the layout. Syscom is an inter-process(or) communication mechanism between an IPU and host. Syscom uses message queues for message exchange between IPU and host. Each message queue has its consumer and producer, host queue messages to firmware as the producer and then firmware to dequeue the messages as consumer and vice versa. IPU and host use shared registers or memory to reside the read and write indices which are updated by consumer and producer. IPU7 firmware defined its boot sequence, driver setup the boot configuration and program the boot parameters to start and run the firmware. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-07-03media: staging/ipu7: add IPU7 DMA APIs and MMU mappingBingbu Cao4-0/+1790
The Intel IPU7 has internal microprocessor which runs the firmware The microprocessor accesses system DRAM by its internal 32-bit virtual address space. Driver should setup the MMU table and expose the DMA APIs for memory buffer mapping. This patch adds the IPU MMU and a DMA mapping implementation to setup the internal MMU hardware. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-07-03media: staging/ipu7: add Intel IPU7 PCI device driverBingbu Cao8-0/+5067
Intel Image Processing Unit 7th Gen includes input and processing systems and the hardware presents itself as a single PCI device in system same as IPU6. The IPU7 PCI device driver basically does PCI configurations, basic hardware configuration by its buttress interfaces, loads the firmware binary, register the auxiliary device which serve for the ISYS device driver. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
generated by cgit v1.2.3 (git 2.39.1) at 2026-01-04 13:29:08 +0000