+++ /dev/null
-From 2922a8de996956893bb98e4aa91be9774c958336 Mon Sep 17 00:00:00 2001
-From: Stephen Warren <swarren@wwwdotorg.org>
-Date: Tue, 21 May 2013 20:36:34 -0600
-Subject: [PATCH] spi: introduce macros to set bits_per_word_mask
-
-Introduce two macros to make setting up spi_master.bits_per_word_mask
-easier, and avoid mistakes like writing BIT(n) instead of BIT(n - 1).
-
-SPI_BPW_MASK is for a single supported value of bits_per_word_mask.
-
-SPI_BPW_RANGE_MASK represents a contiguous set of bit lengths.
-
-Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
-Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
----
- include/linux/spi/spi.h | 2 ++
- 1 file changed, 2 insertions(+)
-
---- a/include/linux/spi/spi.h
-+++ b/include/linux/spi/spi.h
-@@ -308,6 +308,8 @@ struct spi_master {
-
- /* bitmask of supported bits_per_word for transfers */
- u32 bits_per_word_mask;
-+#define SPI_BPW_MASK(bits) BIT((bits) - 1)
-+#define SPI_BPW_RANGE_MASK(min, max) ((BIT(max) - 1) - (BIT(min) - 1))
-
- /* other constraints relevant to this driver */
- u16 flags;