On Tue, Sep 16, 2014 at 04:53:49PM +0300, Peter Ujfalusi wrote:
> When the audio stream is paused or suspended we stop the sDMA and when it
> is unpaused/resumed we start the channel without reconfiguring it.
> The omap_dma_stop() clears the link configuration when we pause the dma, but
> it is not setting it back on start. This will result only one audio buffer
> to be played back and the DMA will stop, since the linking is disabled.
> We need to restore the CLINK_CTRL register in case of resume.
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
Both of these patches now look good, thanks. For both:
Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
> ---
> drivers/dma/omap-dma.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
> index c01ea505ee7c..e0990c505889 100644
> --- a/drivers/dma/omap-dma.c
> +++ b/drivers/dma/omap-dma.c
> @@ -1019,6 +1019,9 @@ static int omap_dma_resume(struct omap_chan *c)
> if (c->paused) {
> mb();
>
> + /* Restore chanel link register */
> + omap_dma_chan_write(c, CLNK_CTRL, c->desc->clnk_ctrl);
> +
> omap_dma_start(c, c->desc);
> c->paused = false;
> }
> --
> 2.1.0
>
--
FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
according to speedtest.net.
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