From f64dcac0b1247842db2530959cbe3df1cb1947c4 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Tue, 24 Nov 2009 10:25:33 +0200 Subject: 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 Signed-off-by: Eric Miao --- drivers/video/backlight/tdo24m.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/video/backlight/tdo24m.c') diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c index bbfb502add6..4a3d46e0801 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); -- cgit v1.2.3