From 5f2940c4a544ae9040d0feff6da06a994cc201ff Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Tue, 8 Mar 2016 10:34:38 -0800 Subject: [PATCH] Input: ad7879 - fix default x/y axis assignment The X/Y position measurements read from the controller are interpreted wrong. The first measurement X+ contains the Y position, and the second measurement Y+ the X position (see also Table 11 Register Table in the data sheet). The problem is already known and a swap option has been introduced: commit 6680884a4420 ("Input: ad7879 - add option to correct xy axis") However, the meaning of the new boolean is inverted since the underlying values are already swapped. Let ts->swap_xy set to true actually be the swapped configuration of the two axis. Signed-off-by: Stefan Agner Acked-by: Michael Hennerich Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ad7879.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index b32dbf3..a770b92 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -94,8 +94,8 @@ #define AD7879_TEMP_BIT (1<<1) enum { - AD7879_SEQ_XPOS = 0, - AD7879_SEQ_YPOS = 1, + AD7879_SEQ_YPOS = 0, + AD7879_SEQ_XPOS = 1, AD7879_SEQ_Z1 = 2, AD7879_SEQ_Z2 = 3, AD7879_NR_SENSE = 4, @@ -517,7 +517,9 @@ struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned int irq, ts->dev = dev; ts->input = input_dev; ts->irq = irq; - ts->swap_xy = pdata->swap_xy; + + /* Use swapped axis by default (backward compatibility) */ + ts->swap_xy = !pdata->swap_xy; setup_timer(&ts->timer, ad7879_timer, (unsigned long) ts); -- 2.7.4