linux-kernel - [PATCH 3.12 24/82] spi: nuc900: Set SPI_LSB_FIRST for master->mode

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Message-Id: <20140220235020.202882178@linuxfoundation.org>
Date:	Thu, 20 Feb 2014 15:52:07 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Axel Lin <axel.lin@...ics.com>,
	Mark Brown <broonie@...aro.org>
Subject: [PATCH 3.12 24/82] spi: nuc900: Set SPI_LSB_FIRST for master->mode_bits if hw->pdata->lsb is true

3.12-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>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/spi/spi-nuc900.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/spi/spi-nuc900.c
+++ b/drivers/spi/spi-nuc900.c
@@ -363,6 +363,8 @@ static int nuc900_spi_probe(struct platf
 	init_completion(&hw->done);
 
 	master->mode_bits          = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
+	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;


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