[RFC 4/6] spi: atmel: use atmel_io.h to provide on-chip IO
Ben Dooks
ben.dooks at codethink.co.uk
Thu Mar 26 04:45:52 PDT 2015
Use <linux/atmel_io.h> to provide IO accessors which work on both
AVR32 and ARM for on-chip peripherals.
Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
--
CC: Nicolas Ferre <nicolas.ferre at atmel.com> (supporter:ATMEL SPI DRIVER)
CC: Mark Brown <broonie at kernel.org> (maintainer:SPI SUBSYSTEM)
CC: linux-spi at vger.kernel.org (open list:SPI SUBSYSTEM)
CC: linux-arm-kernel at lists.infradead.org
---
drivers/spi/spi-atmel.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index a2f40b1..f10cc75 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -25,6 +25,7 @@
#include <linux/io.h>
#include <linux/gpio.h>
+#include <linux/atmel_io.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pm_runtime.h>
@@ -180,17 +181,11 @@
| SPI_BF(name, value))
/* Register access macros */
-#ifdef CONFIG_AVR32
#define spi_readl(port, reg) \
- __raw_readl((port)->regs + SPI_##reg)
+ atmel_oc_readl((port)->regs + SPI_##reg)
#define spi_writel(port, reg, value) \
- __raw_writel((value), (port)->regs + SPI_##reg)
-#else
-#define spi_readl(port, reg) \
- readl_relaxed((port)->regs + SPI_##reg)
-#define spi_writel(port, reg, value) \
- writel_relaxed((value), (port)->regs + SPI_##reg)
-#endif
+ atmel_oc_writel((value), (port)->regs + SPI_##reg)
+
/* use PIO for small transfers, avoiding DMA setup/teardown overhead and
* cache operations; better heuristics consider wordsize and bitrate.
*/
--
2.1.4
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