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media: allegro: fix log2_max_poc in firmware 2019.1 

The log2_max_poc field is used to set log2_max_pic_order_cnt_lsb_minus4
for the coded stream. It has an allowed range of 0 to 12.

param contains the value without the minus4, but since firmware
version 2019.1, the value has to be log2_max_pic_order_cnt_lsb - 1,
presumably to fit the maximum value of 16 into a 4 bit field.

The driver does not support firmware version 2019.1. Thus, change the
behaviour starting from firmware version 2019.2.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Michael Tretter 2020-12-03 12:00:55 +01:00 committed by Mauro Carvalho Chehab
parent 83a4b7fd7f
commit e7cd90988b
1 changed files with 5 additions and 2 deletions
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7
drivers/media/platform/allegro-dvt/allegro-mail.c
View File

@ -109,8 +109,11 @@ allegro_encode_config_blob(u32 *dst, struct create_channel_param *param)
val = 0;
val |= param->temporal_mvp_enable ? BIT(20) : 0;
val |= FIELD_PREP(GENMASK(7, 4), param->log2_max_frame_num) |
FIELD_PREP(GENMASK(3, 0), param->log2_max_poc);
val |= FIELD_PREP(GENMASK(7, 4), param->log2_max_frame_num);
if (version >= MCU_MSG_VERSION_2019_2)
val |= FIELD_PREP(GENMASK(3, 0), param->log2_max_poc - 1);
else
val |= FIELD_PREP(GENMASK(3, 0), param->log2_max_poc);
dst[i++] = val;
val = 0;