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Message-Id: <20170523200902.352392293@linuxfoundation.org>
Date: Tue, 23 May 2017 22:09:35 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
George McCollister <george.mccollister@...il.com>,
Matt Ranostay <matt.ranostay@...sulko.com>,
Jonathan Cameron <jic23@...nel.org>
Subject: [PATCH 4.4 069/103] iio: proximity: as3935: fix as3935_write
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Matt Ranostay <matt.ranostay@...sulko.com>
commit 84ca8e364acb26aba3292bc113ca8ed4335380fd upstream.
AS3935_WRITE_DATA macro bit is incorrect and the actual write
sequence is two leading zeros.
Cc: George McCollister <george.mccollister@...il.com>
Signed-off-by: Matt Ranostay <matt.ranostay@...sulko.com>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/iio/proximity/as3935.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/iio/proximity/as3935.c
+++ b/drivers/iio/proximity/as3935.c
@@ -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)
@@ -105,7 +104,7 @@ static int as3935_write(struct as3935_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);
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