From: Axel Lin <axel.lin@ingics.com>
Date: Wed, 5 Mar 2014 05:37:00 +0000 (+0800)
Subject: spi: altera: Use bits_per_word_mask
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=72bb79d042375586c4ad8def57d7932064d76090;p=linux-beck.git

spi: altera: Use bits_per_word_mask

This driver does not work for bits_per_word greater than 16.
Set bits_per_word_mask so spi core will reject transfers that attempt to use
an unsupported bits_per_word value.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
index 5d7deaf62867..aa33b56b7a92 100644
--- a/drivers/spi/spi-altera.c
+++ b/drivers/spi/spi-altera.c
@@ -214,6 +214,7 @@ static int altera_spi_probe(struct platform_device *pdev)
 	master->bus_num = pdev->id;
 	master->num_chipselect = 16;
 	master->mode_bits = SPI_CS_HIGH;
+	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 16);
 
 	hw = spi_master_get_devdata(master);
 	platform_set_drvdata(pdev, hw);