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linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Dec 19, 2025 at 09:50:58AM +0800, Guoniu Zhou wrote: > From: Guoniu Zhou > > The CSI pixel formatter is a module found on i.MX95 used to reformat > packet info, pixel and non-pixel data from CSI-2 host controller to > match Pixel Link(PL) definition. > > Add data formatting support. > > Signed-off-by: Guoniu Zhou > --- > MAINTAINERS | 8 + > drivers/media/platform/nxp/Kconfig | 14 + > drivers/media/platform/nxp/Makefile | 1 + > drivers/media/platform/nxp/imx9-csi-formatter.c | 880 ++++++++++++++++++++++++ > 4 files changed, 903 insertions(+) > > diff --git a/MAINTAINERS b/MAINTAINERS > index 4205ca007e076f869613032b51e8cc5bff06b98e..3878957b81156e5cb41da2699b2f588e49521724 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -18626,6 +18626,14 @@ S: Maintained > F: Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml > F: drivers/media/platform/nxp/imx-jpeg > > +NXP i.MX 9 CSI PIXEL FORMATTER V4L2 DRIVER > +M: Guoniu Zhou > +L: imx@lists.linux.dev > +L: linux-media@vger.kernel.org > +S: Maintained > +F: Documentation/devicetree/bindings/media/fsl,imx9-csi-formatter.yaml > +F: drivers/media/platform/nxp/imx9-csi-formatter.c > + > NXP i.MX CLOCK DRIVERS > M: Abel Vesa > R: Peng Fan > diff --git a/drivers/media/platform/nxp/Kconfig b/drivers/media/platform/nxp/Kconfig > index 40e3436669e213fdc5da70821dc0b420e1821f4f..a7bb62a2b0249659ffdfeac50fa488aee9590a87 100644 > --- a/drivers/media/platform/nxp/Kconfig > +++ b/drivers/media/platform/nxp/Kconfig > @@ -28,6 +28,20 @@ config VIDEO_IMX8MQ_MIPI_CSI2 > Video4Linux2 driver for the MIPI CSI-2 receiver found on the i.MX8MQ > SoC. > > +config VIDEO_IMX9_CSI_FORMATTER > + tristate "NXP i.MX9 CSI Pixel Formatter driver" > + depends on ARCH_MXC || COMPILE_TEST > + depends on VIDEO_DEV > + select MEDIA_CONTROLLER > + select V4L2_FWNODE > + select VIDEO_V4L2_SUBDEV_API > + help > + This driver provides support for the CSI Pixel Formatter found on > + i.MX9 series SoC. This module unpacks the pixels received by the > + formatter and reformats them to meet the pixel link format requirement. > + > + Say Y here to enable CSI Pixel Formater module for i.MX9 SoC. > + > config VIDEO_IMX_MIPI_CSIS > tristate "NXP MIPI CSI-2 CSIS receiver found on i.MX7 and i.MX8 models" > depends on ARCH_MXC || COMPILE_TEST > diff --git a/drivers/media/platform/nxp/Makefile b/drivers/media/platform/nxp/Makefile > index 4d90eb71365259ebdda84ea58483e1c4131d3ac7..39ba5660ba923141e7637b01b5b34a021dad7bb3 100644 > --- a/drivers/media/platform/nxp/Makefile > +++ b/drivers/media/platform/nxp/Makefile > @@ -6,6 +6,7 @@ obj-y += imx8-isi/ > > obj-$(CONFIG_VIDEO_IMX7_CSI) += imx7-media-csi.o > obj-$(CONFIG_VIDEO_IMX8MQ_MIPI_CSI2) += imx8mq-mipi-csi2.o > +obj-$(CONFIG_VIDEO_IMX9_CSI_FORMATTER) += imx9-csi-formatter.o > obj-$(CONFIG_VIDEO_IMX_MIPI_CSIS) += imx-mipi-csis.o > obj-$(CONFIG_VIDEO_IMX_PXP) += imx-pxp.o > obj-$(CONFIG_VIDEO_MX2_EMMAPRP) += mx2_emmaprp.o > diff --git a/drivers/media/platform/nxp/imx9-csi-formatter.c b/drivers/media/platform/nxp/imx9-csi-formatter.c > new file mode 100644 > index 0000000000000000000000000000000000000000..5786e4690e31ee471caf8201329c8e02a2cc0ee6 > --- /dev/null > +++ b/drivers/media/platform/nxp/imx9-csi-formatter.c > @@ -0,0 +1,880 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright 2025 NXP > + */ > + ... > + > +static const struct dt_index formatter_dt_to_index_map[] = { > + { .dtype = MIPI_CSI2_DT_YUV420_8B, .index = 0 }, > + { .dtype = MIPI_CSI2_DT_YUV420_8B_LEGACY, .index = 2 }, > + { .dtype = MIPI_CSI2_DT_YUV422_8B, .index = 6 }, > + { .dtype = MIPI_CSI2_DT_RGB444, .index = 8 }, > + { .dtype = MIPI_CSI2_DT_RGB555, .index = 9 }, > + { .dtype = MIPI_CSI2_DT_RGB565, .index = 10 }, > + { .dtype = MIPI_CSI2_DT_RGB666, .index = 11 }, > + { .dtype = MIPI_CSI2_DT_RGB888, .index = 12 }, > + { .dtype = MIPI_CSI2_DT_RAW6, .index = 16 }, > + { .dtype = MIPI_CSI2_DT_RAW7, .index = 17 }, > + { .dtype = MIPI_CSI2_DT_RAW8, .index = 18 }, > + { .dtype = MIPI_CSI2_DT_RAW10, .index = 19 }, > + { .dtype = MIPI_CSI2_DT_RAW12, .index = 20 }, > + { .dtype = MIPI_CSI2_DT_RAW14, .index = 21 }, > + { .dtype = MIPI_CSI2_DT_RAW16, .index = 22 }, what's these index value from? register bit? Frank > + > +static u8 get_index_by_dt(u8 data_type) > +{ > + unsigned int i; > + > + for (i = 0; i < ARRAY_SIZE(formatter_dt_to_index_map); ++i) > + if (data_type == formatter_dt_to_index_map[i].dtype) > + break; > + > + if (i == ARRAY_SIZE(formatter_dt_to_index_map)) > + return formatter_dt_to_index_map[0].index; > + > + return formatter_dt_to_index_map[i].index; > +} > + ... > > -- > 2.34.1 >