From mboxrd@z Thu Jan 1 00:00:00 1970 From: josh.wu@atmel.com (Josh Wu) Date: Tue, 22 Sep 2015 13:14:33 +0800 Subject: [PATCH 4/5] media: atmel-isi: setup YCC_SWAP correctly when using preview path In-Reply-To: <1442898875-7147-1-git-send-email-josh.wu@atmel.com> References: <1442898875-7147-1-git-send-email-josh.wu@atmel.com> Message-ID: <1442898875-7147-5-git-send-email-josh.wu@atmel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The preview path only can convert UYVY format to RGB data. To make preview path work correctly, we need to set up YCC_SWAP according to sensor output and convert them to UYVY. Signed-off-by: Josh Wu --- drivers/media/platform/soc_camera/atmel-isi.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c index bbf6449..e87d354 100644 --- a/drivers/media/platform/soc_camera/atmel-isi.c +++ b/drivers/media/platform/soc_camera/atmel-isi.c @@ -127,6 +127,22 @@ static u32 setup_cfg2_yuv_swap(struct atmel_isi *isi, cfg2_yuv_swap = ISI_CFG2_YCC_SWAP_MODE_1; break; } + } else if (xlate->host_fmt->fourcc == V4L2_PIX_FMT_RGB565) { + /* Preview path is enabled, it will convert UYVY to RGB format. + * But if sensor output format is not UYVY, we need to set + * YCC_SWAP_MODE to convert it as UYVY. + */ + switch (xlate->code) { + case MEDIA_BUS_FMT_VYUY8_2X8: + cfg2_yuv_swap = ISI_CFG2_YCC_SWAP_MODE_1; + break; + case MEDIA_BUS_FMT_YUYV8_2X8: + cfg2_yuv_swap = ISI_CFG2_YCC_SWAP_MODE_2; + break; + case MEDIA_BUS_FMT_YVYU8_2X8: + cfg2_yuv_swap = ISI_CFG2_YCC_SWAP_MODE_3; + break; + } } return cfg2_yuv_swap; -- 1.9.1