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[media] coda: simplify frame memory control register handling 

Since the firmware newer writes to FRAME_MEM_CTRL, we can initialize it once
per context (incidentally, we already do write it in coda_hw_init) and never
have to read it back.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Philipp Zabel 2014-09-29 09:53:46 -03:00 committed by Mauro Carvalho Chehab
parent 59ebc2e446
commit 2bf299cd46
2 changed files with 7 additions and 5 deletions
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8
drivers/media/platform/coda/coda-bit.c
View File

@ -729,10 +729,7 @@ static int coda_start_encoding(struct coda_ctx *ctx)
break;
}
value = coda_read(dev, CODA_REG_BIT_FRAME_MEM_CTRL);
value &= ~(1 << 2 | 0x7 << 9);
ctx->frame_mem_ctrl = value;
coda_write(dev, value, CODA_REG_BIT_FRAME_MEM_CTRL);
coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
if (dev->devtype->product == CODA_DX6) {
/* Configure the coda */
@ -741,6 +738,7 @@ static int coda_start_encoding(struct coda_ctx *ctx)
}
/* Could set rotation here if needed */
value = 0;
switch (dev->devtype->product) {
case CODA_DX6:
value = (q_data_src->width & CODADX6_PICWIDTH_MASK)
@ -1296,6 +1294,8 @@ static int __coda_start_decoding(struct coda_ctx *ctx)
/* Update coda bitstream read and write pointers from kfifo */
coda_kfifo_sync_to_device_full(ctx);
coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
ctx->display_idx = -1;
ctx->frm_dis_flg = 0;
coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));

4
drivers/media/platform/coda/coda-common.c
View File

@ -1423,8 +1423,10 @@ static int coda_open(struct file *file, enum coda_inst_type inst_type,
ctx->dev = dev;
ctx->idx = idx;
switch (dev->devtype->product) {
case CODA_7541:
case CODA_960:
ctx->frame_mem_ctrl = 1 << 12;
/* fallthrough */
case CODA_7541:
ctx->reg_idx = 0;
break;
default: