This patch adds a function to enable line interlaced buffer scanout and writing.
Signed-off-by: Philipp Zabel <[email protected]> --- drivers/gpu/ipu-v3/ipu-common.c | 19 +++++++++++++++++++ include/video/imx-ipu-v3.h | 1 + 2 files changed, 20 insertions(+) diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c index a4910d8..94b9e8e 100644 --- a/drivers/gpu/ipu-v3/ipu-common.c +++ b/drivers/gpu/ipu-v3/ipu-common.c @@ -525,6 +525,25 @@ int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem, } EXPORT_SYMBOL_GPL(ipu_cpmem_set_image); +int ipu_ch_cpmem_set_interlaced_scan(struct ipuv3_channel *channel) +{ + u32 stride; + struct ipu_soc *ipu = channel->ipu; + struct ipu_ch_param __iomem *p = ipu_get_cpmem(channel); + + stride = ipu_ch_param_read_field(p, IPU_FIELD_SL) + 1; + if (stride % 8) + dev_warn(ipu->dev, + "IDMAC%d's ILO is not 8-byte aligned\n", channel->num); + + ipu_ch_param_write_field(p, IPU_FIELD_SO, 1); + ipu_ch_param_write_field(p, IPU_FIELD_ILO, stride / 8); + ipu_ch_param_write_field(p, IPU_FIELD_SL, 2 * stride - 1); + + return 0; +} +EXPORT_SYMBOL_GPL(ipu_ch_cpmem_set_interlaced_scan); + enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat) { switch (pixelformat) { diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h index 2d14425..77a82f5 100644 --- a/include/video/imx-ipu-v3.h +++ b/include/video/imx-ipu-v3.h @@ -320,6 +320,7 @@ void ipu_cpmem_set_yuv_planar_full(struct ipu_ch_param __iomem *p, int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat); int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem, struct ipu_image *image); +int ipu_ch_cpmem_set_interlaced_scan(struct ipuv3_channel *channel); enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc); enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat); -- 2.0.0.rc2 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
