linux-kernel - [PATCH 3.5 35/60] spi: nuc900: Set SPI_LSB_FIRST for master->mode

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Message-Id: <1392987687-15367-36-git-send-email-luis.henriques@canonical.com>
Date:	Fri, 21 Feb 2014 13:01:02 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Axel Lin <axel.lin@...ics.com>, Mark Brown <broonie@...aro.org>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.5 35/60] spi: nuc900: Set SPI_LSB_FIRST for master->mode_bits if hw->pdata->lsb is true

3.5.7.31 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Axel Lin <axel.lin@...ics.com>

commit f7db1588d6028c97c098bb6445eaabc56a25fed8 upstream.

Otherwise, spi_setup() fails with unsupported mode bits message.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
Signed-off-by: Mark Brown <broonie@...aro.org>
[ luis: backported to 3.5: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/spi/spi-nuc900.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-nuc900.c b/drivers/spi/spi-nuc900.c
index dae8be2..f244d19 100644
--- a/drivers/spi/spi-nuc900.c
+++ b/drivers/spi/spi-nuc900.c
@@ -374,6 +374,8 @@ static int __devinit nuc900_spi_probe(struct platform_device *pdev)
 	init_completion(&hw->done);
 
 	master->mode_bits          = SPI_MODE_0;
+	if (hw->pdata->lsb)
+		master->mode_bits |= SPI_LSB_FIRST;
 	master->num_chipselect     = hw->pdata->num_cs;
 	master->bus_num            = hw->pdata->bus_num;
 	hw->bitbang.master         = hw->master;
-- 
1.9.0

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