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This change centralizes format handling, making it easier to manage and extend. - Moved the `rzg2l_cru_ip_format` struct to `rzg2l-cru.h` for better accessibility. - Added format, datatype and bpp members to `rzg2l_cru_ip_format` struct - Dropped rzg2l_cru_formats - Introduced helper functions `rzg2l_cru_ip_code_to_fmt()`, `rzg2l_cru_ip_format_to_fmt()`, and `rzg2l_cru_ip_index_to_fmt()` to streamline format lookups. - Refactored the `rzg2l_cru_csi2_setup` and format alignment functions to utilize the new helpers. Suggested-by: Laurent Pinchart Signed-off-by: Lad Prabhakar --- v2->v3 - Updated subject line and commit message - Implemented rzg2l_cru_ip_format_to_fmt() and rzg2l_cru_ip_index_to_fmt() - Dropped checking fmt in rzg2l_cru_initialize_image_conv() v1->v2 - New patch --- .../platform/renesas/rzg2l-cru/rzg2l-cru.h | 20 +++++- .../platform/renesas/rzg2l-cru/rzg2l-ip.c | 35 ++++++++-- .../platform/renesas/rzg2l-cru/rzg2l-video.c | 67 ++++++------------- 3 files changed, 68 insertions(+), 54 deletions(-) diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h index 4fe24bdde5b2..39296a59b3da 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h @@ -62,6 +62,20 @@ struct rzg2l_cru_ip { struct v4l2_subdev *remote; }; +/** + * struct rzg2l_cru_ip_format - CRU IP format + * @code: Media bus code + * @format: 4CC format identifier (V4L2_PIX_FMT_*) + * @datatype: MIPI CSI2 data type + * @bpp: bytes per pixel + */ +struct rzg2l_cru_ip_format { + u32 code; + u32 format; + u32 datatype; + u8 bpp; +}; + /** * struct rzg2l_cru_dev - Renesas CRU device structure * @dev: (OF) device @@ -144,10 +158,12 @@ int rzg2l_cru_video_register(struct rzg2l_cru_dev *cru); void rzg2l_cru_video_unregister(struct rzg2l_cru_dev *cru); irqreturn_t rzg2l_cru_irq(int irq, void *data); -const struct v4l2_format_info *rzg2l_cru_format_from_pixel(u32 format); - int rzg2l_cru_ip_subdev_register(struct rzg2l_cru_dev *cru); void rzg2l_cru_ip_subdev_unregister(struct rzg2l_cru_dev *cru); struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru); +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code); +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format); +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index); + #endif diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c index 7b006a0bfaae..12aac9d6cb4b 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c @@ -6,17 +6,21 @@ */ #include -#include "rzg2l-cru.h" -struct rzg2l_cru_ip_format { - u32 code; -}; +#include + +#include "rzg2l-cru.h" static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = { - { .code = MEDIA_BUS_FMT_UYVY8_1X16, }, + { + .code = MEDIA_BUS_FMT_UYVY8_1X16, + .format = V4L2_PIX_FMT_UYVY, + .datatype = MIPI_CSI2_DT_YUV422_8B, + .bpp = 2, + }, }; -static const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code) +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code) { unsigned int i; @@ -27,6 +31,25 @@ static const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int c return NULL; } +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(rzg2l_cru_ip_formats); i++) + if (rzg2l_cru_ip_formats[i].format == format) + return &rzg2l_cru_ip_formats[i]; + + return NULL; +} + +const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index) +{ + if (index >= ARRAY_SIZE(rzg2l_cru_ip_formats)) + return NULL; + + return &rzg2l_cru_ip_formats[index]; +} + struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru) { struct v4l2_subdev_state *state; diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c index de88c0fab961..ceb9012c9d70 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c @@ -300,21 +300,10 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru) rzg2l_cru_write(cru, AMnAXIATTR, amnaxiattr); } -static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv, - struct v4l2_mbus_framefmt *ip_sd_fmt, u8 csi_vc) +static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, u8 csi_vc, + u32 csi2_datatype) { - u32 icnmc; - - switch (ip_sd_fmt->code) { - case MEDIA_BUS_FMT_UYVY8_1X16: - icnmc = ICnMC_INF(MIPI_CSI2_DT_YUV422_8B); - *input_is_yuv = true; - break; - default: - *input_is_yuv = false; - icnmc = ICnMC_INF(MIPI_CSI2_DT_USER_DEFINED(0)); - break; - } + u32 icnmc = ICnMC_INF(csi2_datatype); icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK); @@ -328,17 +317,20 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru, struct v4l2_mbus_framefmt *ip_sd_fmt, u8 csi_vc) { - bool output_is_yuv = false; - bool input_is_yuv = false; + const struct v4l2_format_info *src_finfo, *dst_finfo; + const struct rzg2l_cru_ip_format *cru_ip_fmt; u32 icndmr; - rzg2l_cru_csi2_setup(cru, &input_is_yuv, ip_sd_fmt, csi_vc); + cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code); + rzg2l_cru_csi2_setup(cru, csi_vc, cru_ip_fmt->datatype); + + src_finfo = v4l2_format_info(cru_ip_fmt->format); + dst_finfo = v4l2_format_info(cru->format.pixelformat); /* Output format */ switch (cru->format.pixelformat) { case V4L2_PIX_FMT_UYVY: icndmr = ICnDMR_YCMODE_UYVY; - output_is_yuv = true; break; default: dev_err(cru->dev, "Invalid pixelformat (0x%x)\n", @@ -347,7 +339,7 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru, } /* If input and output use same colorspace, do bypass mode */ - if (output_is_yuv == input_is_yuv) + if (v4l2_is_format_yuv(src_finfo) && v4l2_is_format_yuv(dst_finfo)) rzg2l_cru_write(cru, ICnMC, rzg2l_cru_read(cru, ICnMC) | ICnMC_CSCTHR); else @@ -810,35 +802,15 @@ int rzg2l_cru_dma_register(struct rzg2l_cru_dev *cru) /* ----------------------------------------------------------------------------- * V4L2 stuff */ - -static const struct v4l2_format_info rzg2l_cru_formats[] = { - { - .format = V4L2_PIX_FMT_UYVY, - .bpp[0] = 2, - }, -}; - -const struct v4l2_format_info *rzg2l_cru_format_from_pixel(u32 format) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(rzg2l_cru_formats); i++) - if (rzg2l_cru_formats[i].format == format) - return rzg2l_cru_formats + i; - - return NULL; -} - static u32 rzg2l_cru_format_bytesperline(struct v4l2_pix_format *pix) { - const struct v4l2_format_info *fmt; - - fmt = rzg2l_cru_format_from_pixel(pix->pixelformat); + const struct rzg2l_cru_ip_format *fmt; + fmt = rzg2l_cru_ip_format_to_fmt(pix->pixelformat); if (WARN_ON(!fmt)) - return -EINVAL; + return 0; - return pix->width * fmt->bpp[0]; + return pix->width * fmt->bpp; } static u32 rzg2l_cru_format_sizeimage(struct v4l2_pix_format *pix) @@ -849,7 +821,7 @@ static u32 rzg2l_cru_format_sizeimage(struct v4l2_pix_format *pix) static void rzg2l_cru_format_align(struct rzg2l_cru_dev *cru, struct v4l2_pix_format *pix) { - if (!rzg2l_cru_format_from_pixel(pix->pixelformat)) + if (!rzg2l_cru_ip_format_to_fmt(pix->pixelformat)) pix->pixelformat = RZG2L_CRU_DEFAULT_FORMAT; switch (pix->field) { @@ -941,10 +913,13 @@ static int rzg2l_cru_g_fmt_vid_cap(struct file *file, void *priv, static int rzg2l_cru_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { - if (f->index >= ARRAY_SIZE(rzg2l_cru_formats)) + const struct rzg2l_cru_ip_format *fmt; + + fmt = rzg2l_cru_ip_index_to_fmt(f->index); + if (!fmt) return -EINVAL; - f->pixelformat = rzg2l_cru_formats[f->index].format; + f->pixelformat = fmt->format; return 0; }