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authorJarkko Nikula <jarkko.nikula@linux.intel.com>2015-07-30 16:30:07 +0300
committerMark Brown <broonie@kernel.org>2015-07-31 21:13:33 +0300
commit34cadd9c1bcbd5ad5a1f379b013526a8046d4aed (patch)
tree94d095ade2a89eb3806610d0bb35597968f0d1f7 /include/linux/pxa2xx_ssp.h
parent1aae50a245736aec603c319fea2a83a90dc69aba (diff)
downloadlinux-34cadd9c1bcbd5ad5a1f379b013526a8046d4aed.tar.xz
spi: pxa2xx: Add support for Intel Sunrisepoint
Major difference in LPSS SPI between Intel Sunrisepoint PCH and earlier platforms is an integrated DMA (iDMA) engine. iDMA is an IP that is private for each LPSS host controller (UART/SPI/I2C). Other differences are private register space offset, a few private registers that are in different location and FIFO thresholds. Intel Sunrisepoint LPSS SPI and iDMA devices are probed and registered in MFD layer as platform devices. Here these compound devices are detected by matching against known PCI IDs. This allows us to share pxa2xx_spi_acpi_get_pdata() for setting up the platform data instead of duplicating it in MFD part. This patch adds configuration for Intel Sunrisepoint LPSS SPI, above detection and DMA filter function that picks the DMA channel only from an associated iDMA block. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/pxa2xx_ssp.h')
-rw-r--r--include/linux/pxa2xx_ssp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h
index 0485bab061fd..92273776bce6 100644
--- a/include/linux/pxa2xx_ssp.h
+++ b/include/linux/pxa2xx_ssp.h
@@ -197,6 +197,7 @@ enum pxa_ssp_type {
QUARK_X1000_SSP,
LPSS_LPT_SSP, /* Keep LPSS types sorted with lpss_platforms[] */
LPSS_BYT_SSP,
+ LPSS_SPT_SSP,
};
struct ssp_device {