From: thor.thayer@linux.intel.com
To: broonie@kernel.org
Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,
Thor Thayer <thor.thayer@linux.intel.com>
Subject: [PATCH] spi: dw: Fix Designware SPI loopback
Date: Tue, 5 Nov 2019 14:22:10 -0600 [thread overview]
Message-ID: <1572985330-5525-1-git-send-email-thor.thayer@linux.intel.com> (raw)
From: Thor Thayer <thor.thayer@linux.intel.com>
The SPI_LOOP is set in spi->mode but not propagated to the register.
A previous patch removed the bit during a cleanup.
Fixes: e1bc204894ea ("spi: dw: fix potential variable assignment error")
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
---
drivers/spi/spi-dw.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 9a49e073e8b7..076652d3d051 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -308,7 +308,8 @@ static int dw_spi_transfer_one(struct spi_controller *master,
cr0 = (transfer->bits_per_word - 1)
| (chip->type << SPI_FRF_OFFSET)
| ((((spi->mode & SPI_CPOL) ? 1 : 0) << SPI_SCOL_OFFSET) |
- (((spi->mode & SPI_CPHA) ? 1 : 0) << SPI_SCPH_OFFSET))
+ (((spi->mode & SPI_CPHA) ? 1 : 0) << SPI_SCPH_OFFSET) |
+ (((spi->mode & SPI_LOOP) ? 1 : 0) << SPI_SRL_OFFSET))
| (chip->tmode << SPI_TMOD_OFFSET);
/*
--
2.7.4
next reply other threads:[~2019-11-05 20:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-05 20:22 thor.thayer [this message]
2019-11-05 23:51 ` Applied "spi: dw: Fix Designware SPI loopback" to the spi tree Mark Brown
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