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spi/pxa2xx: Don't use slave_id of dma_slave_config

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That field has been deprecated in favour of getting the necessary
information from ACPI/DT.

However, we still need to deal systems that are PCI only (no ACPI to back
up). In order to support such systems, we allow the DMA filter function and
its corresponding parameter via pxa2xx_spi_master platform data. Then when
the pxa2xx_spi_dma_setup() doesn't find the channel via ACPI, it falls back
to use the given filter function.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Mika Westerberg
2014-08-19 20:29:19 +03:00
committed by Vinod Koul
parent a0a53a43ef
commit b729bf3453
4 changed files with 54 additions and 36 deletions
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2
drivers/spi/spi-pxa2xx.c
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@@ -1062,8 +1062,6 @@ pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev)
pdata->num_chipselect = 1;
pdata->enable_dma = true;
pdata->tx_chan_id = -1;
pdata->rx_chan_id = -1;
return pdata;
}