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media: coda: fix decoder sequence init escape flag 

coda_command_sync calls coda_command_async, which writes the
bit_stream_param context variable into the BIT_STREAM_PARAM register,
overwriting the previously set value during coda_start_decoding. Instead
of writing to the register, set bit_stream_param to ensure that the
decoder sequence init command is executed with the escape flag set.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Philipp Zabel 2017-07-28 09:26:25 -04:00 committed by Mauro Carvalho Chehab
parent 0b2e9e7947
commit 45340c14e5
1 changed files with 5 additions and 8 deletions
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13
drivers/media/platform/coda/coda-bit.c
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@ -1639,9 +1639,6 @@ static int __coda_start_decoding(struct coda_ctx *ctx)
ctx->frm_dis_flg = 0;
coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
coda_write(dev, CODA_BIT_DEC_SEQ_INIT_ESCAPE,
CODA_REG_BIT_BIT_STREAM_PARAM);
coda_write(dev, bitstream_buf, CODA_CMD_DEC_SEQ_BB_START);
coda_write(dev, bitstream_size / 1024, CODA_CMD_DEC_SEQ_BB_SIZE);
val = 0;
@ -1676,18 +1673,18 @@ static int __coda_start_decoding(struct coda_ctx *ctx)
if (dev->devtype->product != CODA_960)
coda_write(dev, 0, CODA_CMD_DEC_SEQ_SRC_SIZE);
if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) {
ctx->bit_stream_param = CODA_BIT_DEC_SEQ_INIT_ESCAPE;
ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
ctx->bit_stream_param = 0;
if (ret) {
v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
return -ETIMEDOUT;
return ret;
}
ctx->initialized = 1;
/* Update kfifo out pointer from coda bitstream read pointer */
coda_kfifo_sync_from_device(ctx);
coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
if (coda_read(dev, CODA_RET_DEC_SEQ_SUCCESS) == 0) {
v4l2_err(&dev->v4l2_dev,
"CODA_COMMAND_SEQ_INIT failed, error code = %d\n",