Commit 91fe07aa authored Apr 13, 2017 by Matt Ranostay Committed by Greg Kroah-Hartman May 25, 2017

iio: proximity: as3935: fix as3935_write



commit 84ca8e364acb26aba3292bc113ca8ed4335380fd upstream.

AS3935_WRITE_DATA macro bit is incorrect and the actual write
sequence is two leading zeros.

Cc: George McCollister <george.mccollister@gmail.com>
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 53b5e27b

drivers/iio/proximity/as3935.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -50,7 +50,6 @@
		#define AS3935_TUNE_CAP 0x08
		#define AS3935_CALIBRATE 0x3D

		#define AS3935_WRITE_DATA BIT(15)
		#define AS3935_READ_DATA BIT(14)
		#define AS3935_ADDRESS(x) ((x) << 8)

		@@ -103,7 +102,7 @@ static int as3935_write(struct as3935_state *st,
		{
		u8 *buf = st->buf;

		buf[0] = (AS3935_WRITE_DATA \| AS3935_ADDRESS(reg)) >> 8;
		buf[0] = AS3935_ADDRESS(reg) >> 8;
		buf[1] = val;

		return spi_write(st->spi, buf, 2);