On Thu, Dec 8, 2011 at 1:53 PM, Kukjin Kim <kgene.kim@xxxxxxxxxxx> wrote:
> From: Boojin Kim <boojin.kim@xxxxxxxxxxx>
>
> Cc: Jassi Brar <jassisinghbrar@xxxxxxxxx>
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Cc: Vinod Koul <vinod.koul@xxxxxxxxx>
> Signed-off-by: Boojin Kim <boojin.kim@xxxxxxxxxxx>
> Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
> ---
> drivers/dma/pl330.c | 47 -----------------------------------------------
> 1 files changed, 0 insertions(+), 47 deletions(-)
>
> diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
> index 35f0904..b917477 100644
> --- a/drivers/dma/pl330.c
> +++ b/drivers/dma/pl330.c
> @@ -1512,53 +1512,6 @@ static int pl330_chan_ctrl(void *ch_id, enum pl330_chan_op op)
> return ret;
> }
>
> -static int pl330_chan_status(void *ch_id, struct pl330_chanstatus *pstatus)
> -{
> - struct pl330_thread *thrd = ch_id;
> - struct pl330_dmac *pl330;
> - struct pl330_info *pi;
> - void __iomem *regs;
> - int active;
> - u32 val;
> -
> - if (!pstatus || !thrd || thrd->free)
> - return -EINVAL;
> -
> - pl330 = thrd->dmac;
> - pi = pl330->pinfo;
> - regs = pi->base;
> -
> - /* The client should remove the DMAC and add again */
> - if (pl330->state == DYING)
> - pstatus->dmac_halted = true;
> - else
> - pstatus->dmac_halted = false;
> -
> - val = readl(regs + FSC);
> - if (val & (1 << thrd->id))
> - pstatus->faulting = true;
> - else
> - pstatus->faulting = false;
> -
> - active = _thrd_active(thrd);
> -
> - if (!active) {
> - /* Indicate that the thread is not running */
> - pstatus->top_req = NULL;
> - pstatus->wait_req = NULL;
> - } else {
> - active--;
> - pstatus->top_req = thrd->req[active].r;
> - pstatus->wait_req = !IS_FREE(&thrd->req[1 - active])
> - ? thrd->req[1 - active].r : NULL;
> - }
> -
> - pstatus->src_addr = readl(regs + SA(thrd->id));
> - pstatus->dst_addr = readl(regs + DA(thrd->id));
> -
> - return 0;
> -}
>
NAK.
Recently Samsung ASoC regressed to update DMA pointer only at period boundaries.
I am sure other platforms would like to have low audio latencies and
hence need this function.
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
