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spi/pxa2xx: embed the ssp_device to platform data

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The spi-pxa2xx-pci glue driver had to implement pxa_ssp_request()/free() in
order to support the spi-pxa2xx platform driver. Since the ACPI enabled
platforms can use the same platform driver we would need to implement
pxa_ssp_request()/free() in some central place that can be shared by the
ACPI and PCI glue code.

Instead of doing that we can make pxa_ssp_request()/free() to be available
only when CONFIG_ARCH_PXA is set. On other arches these are being stubbed
out in preference to passing the ssp_device from the platform data
directly.

We also change the SPI bus number to be taken from ssp->port_id instead of
platform device id. This way the supporting code that passes the ssp can
decide the number (or it can set it to the same as pdev->id).

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mika Westerberg
2013-01-07 12:44:33 +02:00
committed by Mark Brown
parent 0202775bc3
commit 851bacf590
4 changed files with 28 additions and 72 deletions
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3
include/linux/spi/pxa2xx_spi.h
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@@ -28,6 +28,9 @@ struct pxa2xx_spi_master {
u32 clock_enable;
u16 num_chipselect;
u8 enable_dma;
/* For non-PXA arches */
struct ssp_device ssp;
};
/* spi_board_info.controller_data for SPI slave devices,