From: Eugen Hristev Date: Fri, 29 Nov 2019 14:10:38 +0000 (+0100) Subject: media: atmel: atmel-isi: add support for mono sensors, GRAY and Y16 X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b567bf86eeba8d227d45a083a6cf139df05b9eb7;p=linux.git media: atmel: atmel-isi: add support for mono sensors, GRAY and Y16 This adds support for GREY and Y16 formats, based on Y10 mbus codes. Y16 needs to go through preview path in the ISI, with 2 pixels per word, and it fits the Y16 format. The ISI data lines need to be MSB aligned with the sensor data lines. GREY format in 8 bits per pixel is done by dropping the 2 LSB bits from the Y10 format, and packed as 4 pixels per word. Suggested-by: Wenyou Yang Signed-off-by: Eugen Hristev Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c index 428f117caa599..35c1f1a516254 100644 --- a/drivers/media/platform/atmel/atmel-isi.c +++ b/drivers/media/platform/atmel/atmel-isi.c @@ -148,7 +148,8 @@ static void configure_geometry(struct atmel_isi *isi) u32 fourcc = isi->current_fmt->fourcc; isi->enable_preview_path = fourcc == V4L2_PIX_FMT_RGB565 || - fourcc == V4L2_PIX_FMT_RGB32; + fourcc == V4L2_PIX_FMT_RGB32 || + fourcc == V4L2_PIX_FMT_Y16; /* According to sensor's output format to set cfg2 */ cfg2 = isi->current_fmt->swap; @@ -990,6 +991,16 @@ static const struct isi_format isi_formats[] = { .mbus_code = MEDIA_BUS_FMT_VYUY8_2X8, .bpp = 2, .swap = ISI_CFG2_YCC_SWAP_MODE_1, + }, { + .fourcc = V4L2_PIX_FMT_GREY, + .mbus_code = MEDIA_BUS_FMT_Y10_1X10, + .bpp = 1, + .swap = ISI_CFG2_GS_MODE_2_PIXEL | ISI_CFG2_GRAYSCALE, + }, { + .fourcc = V4L2_PIX_FMT_Y16, + .mbus_code = MEDIA_BUS_FMT_Y10_1X10, + .bpp = 2, + .swap = ISI_CFG2_GS_MODE_2_PIXEL | ISI_CFG2_GRAYSCALE, }, }; diff --git a/drivers/media/platform/atmel/atmel-isi.h b/drivers/media/platform/atmel/atmel-isi.h index 47a9108dba557..7ad3895a2c87e 100644 --- a/drivers/media/platform/atmel/atmel-isi.h +++ b/drivers/media/platform/atmel/atmel-isi.h @@ -62,6 +62,8 @@ #define ISI_CFG1_THMASK_BEATS_16 (2 << 13) /* Bitfields in CFG2 */ +#define ISI_CFG2_GS_MODE_2_PIXEL (0 << 11) +#define ISI_CFG2_GS_MODE_1_PIXEL (1 << 11) #define ISI_CFG2_GRAYSCALE (1 << 13) #define ISI_CFG2_COL_SPACE_YCbCr (0 << 15) #define ISI_CFG2_COL_SPACE_RGB (1 << 15)