[PATCH v2 6/8] drivers:input:ads7846(+tsc2046): recognise old binding for coordinate flipping

From: H. Nikolaus Schaller
Date: Fri Nov 13 2015 - 15:38:04 EST

By this patch we still recognise the old binding ti,swap-xy in parallel to
the common binding touchscreen-swapped-x-y. This keeps compatibility
to older (out-of-tree) device tree binaries.

We do this in a separate patch so that it can be easily reverted in the
future to retire the old API. A notice is printed to remind developers
of using old API.

We also fix the bindings name for all in-tree device tree sources in
a separate patch.

Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
drivers/input/touchscreen/ads7846.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 4525f00..b9896fd 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -1259,7 +1259,11 @@ static const struct ads7846_platform_data *ads7846_probe_dt(struct device *dev)
of_property_read_u16(node, "ti,vref-mv", &pdata->vref_mv);
pdata->keep_vref_on = of_property_read_bool(node, "ti,keep-vref-on");

- pdata->swap_xy = of_property_read_bool(node, "touchscreen-swapped-x-y");
+ pdata->swap_xy = of_property_read_bool(node, "ti,swap-xy");
+ if (pdata->swap_xy)
+ dev_notice(dev, "please update device tree to use touchscreen-swapped-x-y");
+ pdata->swap_xy |= of_property_read_bool(node,
+ "touchscreen-swapped-x-y");

of_property_read_u16(node, "ti,settle-delay-usec",

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