From baa8055de0293a91f87bef5f32296d9ddcba9c56 Mon Sep 17 00:00:00 2001 From: Johannes Poehlmann Date: Tue, 25 Jul 2017 13:27:12 +0200 Subject: w1: ds1wm: make endian clean and use standard io memory accessors o Make endian clean, make HW-endianness configurable. o Use ioread*, iowrite* instead of __raw_readb,__raw_writeb to also use memory-barriers when accessing HW-registers. We do not want reordering to happen here. Both changes are tightly coupled, so I do them in one patch Signed-off-by: Johannes Poehlmann Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman --- include/linux/mfd/ds1wm.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/ds1wm.h b/include/linux/mfd/ds1wm.h index 79a01e8dc83f..2227c6a75d84 100644 --- a/include/linux/mfd/ds1wm.h +++ b/include/linux/mfd/ds1wm.h @@ -16,6 +16,11 @@ struct ds1wm_driver_data { */ unsigned int reset_recover_delay; + /* Say 1 here for big endian Hardware + * (only relevant with bus-shift > 0 + */ + bool is_hw_big_endian; + /* left shift of register number to get register address offsett. * Only 0,1,2 allowed for 8,16 or 32 bit bus width respectively */ -- cgit v1.2.3-59-g8ed1b