From 980a01c9bfb090cb8a991e39e56ac379c30c61b8 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Wed, 28 Jun 2006 07:47:15 -0700 Subject: [PATCH] SPI: infrastructure to initialize spi_device.mode early This patch adds earlier initialization of spi_device.mode, as needed on boards using nondefault chipselect polarity. An example would be ones using the RS5C348 RTC without an external signal inverter between the RTC chipselect and the SPI controller. Without this mechanism, the first setup() call for that chip would wrongly enable chips, corrupting transfers to/from other chips sharing that SPI bus. Signed-off-by: David Brownell Signed-off-by: Linus Torvalds --- drivers/spi/spi.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 1cea4a6799fe..ed1cdf6ac8f3 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -210,6 +210,7 @@ spi_new_device(struct spi_master *master, struct spi_board_info *chip) proxy->master = master; proxy->chip_select = chip->chip_select; proxy->max_speed_hz = chip->max_speed_hz; + proxy->mode = chip->mode; proxy->irq = chip->irq; proxy->modalias = chip->modalias; -- cgit v1.2.2