AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/include/linux/platform_data/spi-ep93xx.h

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spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller This patch adds an SPI master driver for the Cirrus EP93xx SPI controller found in EP93xx chips. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-06 11:47:04 +07:00
#ifndef __ASM_MACH_EP93XX_SPI_H
#define __ASM_MACH_EP93XX_SPI_H
struct spi_device;
/**
* struct ep93xx_spi_info - EP93xx specific SPI descriptor
spi: spi-ep93xx: simplify GPIO chip selects This driver requires a GPIO line to be used for the chip select of each SPI device. Remove the ep93xx_spi_chip_ops definition from the platform data and use the spi core GPIO handling for the chip selects. Fix all the ep93xx platforms that use this driver and remove the old Documentation. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-17 03:07:37 +07:00
* @chipselect: array of gpio numbers to use as chip selects
* @num_chipselect: ARRAY_SIZE(chipselect)
spi/ep93xx: add DMA support This patch adds DMA support for the EP93xx SPI driver. By default the DMA is not enabled but it can be enabled by setting ep93xx_spi_info.use_dma to true in board configuration file. Note that the SPI driver still uses PIO for small transfers (<= 8 bytes) for performance reasons. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-29 17:10:06 +07:00
* @use_dma: use DMA for the transfers
spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller This patch adds an SPI master driver for the Cirrus EP93xx SPI controller found in EP93xx chips. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-06 11:47:04 +07:00
*/
struct ep93xx_spi_info {
spi: spi-ep93xx: simplify GPIO chip selects This driver requires a GPIO line to be used for the chip select of each SPI device. Remove the ep93xx_spi_chip_ops definition from the platform data and use the spi core GPIO handling for the chip selects. Fix all the ep93xx platforms that use this driver and remove the old Documentation. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-02-17 03:07:37 +07:00
int *chipselect;
spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller This patch adds an SPI master driver for the Cirrus EP93xx SPI controller found in EP93xx chips. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-06 11:47:04 +07:00
int num_chipselect;
spi/ep93xx: add DMA support This patch adds DMA support for the EP93xx SPI driver. By default the DMA is not enabled but it can be enabled by setting ep93xx_spi_info.use_dma to true in board configuration file. Note that the SPI driver still uses PIO for small transfers (<= 8 bytes) for performance reasons. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-29 17:10:06 +07:00
bool use_dma;
spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller This patch adds an SPI master driver for the Cirrus EP93xx SPI controller found in EP93xx chips. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-06 11:47:04 +07:00
};
#endif /* __ASM_MACH_EP93XX_SPI_H */
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