diff options
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-cpmem.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-cpmem.c b/drivers/gpu/ipu-v3/ipu-cpmem.c index 9f2d9ec42add..125721a7f8b6 100644 --- a/drivers/gpu/ipu-v3/ipu-cpmem.c +++ b/drivers/gpu/ipu-v3/ipu-cpmem.c @@ -269,9 +269,20 @@ EXPORT_SYMBOL_GPL(ipu_cpmem_set_uv_offset); void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride) { + u32 ilo, sly; + + if (stride < 0) { + stride = -stride; + ilo = 0x100000 - (stride / 8); + } else { + ilo = stride / 8; + } + + sly = (stride * 2) - 1; + ipu_ch_param_write_field(ch, IPU_FIELD_SO, 1); - ipu_ch_param_write_field(ch, IPU_FIELD_ILO, stride / 8); - ipu_ch_param_write_field(ch, IPU_FIELD_SLY, (stride * 2) - 1); + ipu_ch_param_write_field(ch, IPU_FIELD_ILO, ilo); + ipu_ch_param_write_field(ch, IPU_FIELD_SLY, sly); }; EXPORT_SYMBOL_GPL(ipu_cpmem_interlaced_scan); |