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authorBen Dooks <ben.dooks@codethink.co.uk>2015-03-18 11:53:08 -0400
committerMark Brown <broonie@kernel.org>2015-03-22 14:00:25 -0400
commitea467326e36b496a92c677cbbed1dfd03b707aaf (patch)
treec88ff1efb1a69417e16408d5a532e24746f26707 /drivers/spi
parentc517d838eb7d07bbe9507871fab3931deccff539 (diff)
spi: atmel: use endian agnostic IO
Use the endian agnositc IO functions instead of the __raw ones for when the driver is in use on big-endian systems. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-atmel.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 9af7841f2e8c..75757aa531f2 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -180,11 +180,17 @@
180 | SPI_BF(name, value)) 180 | SPI_BF(name, value))
181 181
182/* Register access macros */ 182/* Register access macros */
183#ifdef CONFIG_AVR32
183#define spi_readl(port, reg) \ 184#define spi_readl(port, reg) \
184 __raw_readl((port)->regs + SPI_##reg) 185 __raw_readl((port)->regs + SPI_##reg)
185#define spi_writel(port, reg, value) \ 186#define spi_writel(port, reg, value) \
186 __raw_writel((value), (port)->regs + SPI_##reg) 187 __raw_writel((value), (port)->regs + SPI_##reg)
187 188#else
189#define spi_readl(port, reg) \
190 readl_relaxed((port)->regs + SPI_##reg)
191#define spi_writel(port, reg, value) \
192 writel_relaxed((value), (port)->regs + SPI_##reg)
193#endif
188/* use PIO for small transfers, avoiding DMA setup/teardown overhead and 194/* use PIO for small transfers, avoiding DMA setup/teardown overhead and
189 * cache operations; better heuristics consider wordsize and bitrate. 195 * cache operations; better heuristics consider wordsize and bitrate.
190 */ 196 */