Aaro Koskinen <aaro.koskinen@xxxxxxxxx> writes:
> Clear DMA channel states so that users can assume a known initial state.
>
> Signed-off-by: Aaro Koskinen <aaro.koskinen@xxxxxxxxx>
Thanks, pushing to PM branch.
Kevin
> ---
> arch/arm/plat-omap/dma.c | 6 ++++++
> 1 files changed, 6 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
> index 9796773..cd53b28 100755
> --- a/arch/arm/plat-omap/dma.c
> +++ b/arch/arm/plat-omap/dma.c
> @@ -2322,6 +2322,8 @@ EXPORT_SYMBOL(omap_dma_global_context_save);
>
> void omap_dma_global_context_restore(void)
> {
> + int ch;
> +
> dma_write(omap_dma_global_context.dma_gcr, GCR);
> dma_write(omap_dma_global_context.dma_ocp_sysconfig,
> OCP_SYSCONFIG);
> @@ -2336,6 +2338,10 @@ void omap_dma_global_context_restore(void)
> */
> if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
> dma_write(0x3 , IRQSTATUS_L0);
> +
> + for (ch = 0; ch < dma_chan_count; ch++)
> + if (dma_chan[ch].dev_id != -1)
> + omap_clear_dma(ch);
> }
> EXPORT_SYMBOL(omap_dma_global_context_restore);
>
> --
> 1.5.4.3
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