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SubjectRe: [PATCH 19/32] dmaengine: ste_dma40: Move more setup into the configuration routines
On Thu, Apr 18, 2013 at 11:12:01AM +0100, Lee Jones wrote:
> The less configuration we can do during the allocation of a channel the
> better. As this will mean the likelihood of requiring extra information
> which isn't normally passed through the dma_request_channel() is lessened.
>
> Cc: Vinod Koul <vinod.koul@intel.com>
> Cc: Dan Williams <djbw@fb.com>
> Cc: Per Forlin <per.forlin@stericsson.com>
> Cc: Rabin Vincent <rabin@rab.in>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Vinod Koul <vnod.koul@intel.com>

--
~Vinod
> ---
> drivers/dma/ste_dma40.c | 22 ++++++++++------------
> 1 file changed, 10 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
> index 04cc75f..28fe153 100644
> --- a/drivers/dma/ste_dma40.c
> +++ b/drivers/dma/ste_dma40.c
> @@ -2440,16 +2440,6 @@ static int d40_alloc_chan_resources(struct dma_chan *chan)
>
> d40_set_prio_realtime(d40c);
>
> - if (chan_is_logical(d40c)) {
> - if (d40c->dma_cfg.dir == STEDMA40_PERIPH_TO_MEM)
> - d40c->lcpa = d40c->base->lcpa_base +
> - d40c->dma_cfg.src_dev_type * D40_LCPA_CHAN_SIZE;
> - else
> - d40c->lcpa = d40c->base->lcpa_base +
> - d40c->dma_cfg.dst_dev_type *
> - D40_LCPA_CHAN_SIZE + D40_LCPA_CHAN_DST_DELTA;
> - }
> -
> if (chan_is_logical(d40c))
> d40_log_gim_unmask(&d40c->src_def_cfg, &d40c->dst_def_cfg);
>
> @@ -2793,9 +2783,17 @@ static int d40_set_runtime_config(struct dma_chan *chan,
> return ret;
>
> /* Fill in register values */
> - if (chan_is_logical(d40c))
> + if (chan_is_logical(d40c)) {
> + if (d40c->dma_cfg.dir == STEDMA40_PERIPH_TO_MEM)
> + d40c->lcpa = d40c->base->lcpa_base +
> + d40c->dma_cfg.dev_type * D40_LCPA_CHAN_SIZE;
> + else
> + d40c->lcpa = d40c->base->lcpa_base +
> + d40c->dma_cfg.dev_type *
> + D40_LCPA_CHAN_SIZE + D40_LCPA_CHAN_DST_DELTA;
> +
> d40_log_cfg(cfg, &d40c->log_def.lcsp1, &d40c->log_def.lcsp3);
> - else
> + } else
> d40_phy_cfg(cfg, &d40c->src_def_cfg, &d40c->dst_def_cfg);
>
> /* These settings will take precedence later */
> --
> 1.7.10.4
>


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