From 2bf299cd4651405c8630a9cabd5ac3a87854bdf7 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Mon, 29 Sep 2014 09:53:46 -0300 Subject: [PATCH] [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 Signed-off-by: Kamil Debski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/coda/coda-bit.c | 8 ++++---- drivers/media/platform/coda/coda-common.c | 4 +++- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index 747b54405bf1..3839e3507628 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -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)); diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index fac25170c4c3..feb270f2860b 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -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: -- 2.39.5