Re: [PATCH] mmc: mmci: Allow MMCI to request channels withinformation acquired from DT

From: Lee Jones
Date: Tue Apr 30 2013 - 09:12:28 EST


On Tue, 30 Apr 2013, Linus Walleij wrote:

> On Wed, Apr 24, 2013 at 12:58 PM, Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>
> > Currently, if DMA information isn't passed from platform data, then DMA
> > will not be used. This patch allows DMA information obtained though Device
> > Tree to be used as well.
> >
> > Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
> > Cc: Chris Ball <cjb@xxxxxxxxxx>
> > Cc: linux-mmc@xxxxxxxxxxxxxxx
> > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
> (...)
>
> I tried to test this patch, but:
> CC drivers/mmc/host/mmci.o
> /drivers/mmc/host/mmci.c: In function 'mmci_dma_setup':
> /drivers/mmc/host/mmci.c:307:51: error: 'dev' undeclared (first use in
> this function)
> /drivers/mmc/host/mmci.c:307:51: note: each undeclared identifier is
> reported only once for each function it appears in
> make[5]: *** [drivers/mmc/host/mmci.o] Error 1
> make[4]: *** [drivers/mmc/host] Error 2
> make[3]: *** [drivers/mmc] Error 2
>
> Due to:
>
> > @@ -304,10 +304,8 @@ static void mmci_dma_setup(struct mmci_host *host)
> > const char *rxname, *txname;
> > dma_cap_mask_t mask;
> >
> > - if (!plat || !plat->dma_filter) {
> > - dev_info(mmc_dev(host->mmc), "no DMA platform data\n");
> > - return;
> > - }
> > + host->dma_rx_channel = dma_request_slave_channel(dev, "rx");
> > + host->dma_tx_channel = dma_request_slave_channel(dev, "tx");
>
> There is no "dev" here.

You've missed v2 again dude.

--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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