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authorMike Rapoport <mike@compulab.co.il>2009-11-24 10:25:33 +0200
committerEric Miao <eric.y.miao@gmail.com>2009-12-01 09:02:34 +0800
commitf64dcac0b1247842db2530959cbe3df1cb1947c4 (patch)
treefed5cf0fcf83081deffda476fcdcca2eb6407f8f /drivers/video/backlight/tdo24m.c
parentfa3f99384c20751c66962848807403ff171dc02f (diff)
downloadop-kernel-dev-f64dcac0b1247842db2530959cbe3df1cb1947c4.zip
op-kernel-dev-f64dcac0b1247842db2530959cbe3df1cb1947c4.tar.gz
backlight: tdo24m: ensure chip select changes between transfers
Some SPI host drivers do not change chip select betwen transfers unless .cs_chnage field is explicitly set. The LCD spec requires chip select change between consecuitive transfers, so ensure it at the SPI driver level. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'drivers/video/backlight/tdo24m.c')
-rw-r--r--drivers/video/backlight/tdo24m.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c
index bbfb502..4a3d46e 100644
--- a/drivers/video/backlight/tdo24m.c
+++ b/drivers/video/backlight/tdo24m.c
@@ -367,6 +367,7 @@ static int __devinit tdo24m_probe(struct spi_device *spi)
spi_message_init(m);
+ x->cs_change = 1;
x->tx_buf = &lcd->buf[0];
spi_message_add_tail(x, m);
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