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Date: Mon, 30 Jun 2008 13:35:25 +0100
From: Mark Brown <broonie@...nsource.wolfsonmicro.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH] WM9712: Warn if user attempts to use pressure measurement with 5 wire mode
This is not supported by the hardware.
Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
---
drivers/input/touchscreen/wm9712.c | 18 ++++++++++++------
1 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/input/touchscreen/wm9712.c b/drivers/input/touchscreen/wm9712.c
index 0b6e4cf..4c5d85a 100644
--- a/drivers/input/touchscreen/wm9712.c
+++ b/drivers/input/touchscreen/wm9712.c
@@ -168,6 +168,18 @@ static void wm9712_phy_init(struct wm97xx *wm)
64000 / rpu);
}
+ /* WM9712 five wire */
+ if (five_wire) {
+ dig2 |= WM9712_45W;
+ dev_dbg(wm->dev, "setting 5-wire touchscreen mode.");
+
+ if (pil) {
+ dev_warn(wm->dev, "pressure measurement is not "
+ "supported in 5-wire mode\n");
+ pil = 0;
+ }
+ }
+
/* touchpanel pressure current*/
if (pil == 2) {
dig2 |= WM9712_PIL;
@@ -179,12 +191,6 @@ static void wm9712_phy_init(struct wm97xx *wm)
if (!pil)
pressure = 0;
- /* WM9712 five wire */
- if (five_wire) {
- dig2 |= WM9712_45W;
- dev_dbg(wm->dev, "setting 5-wire touchscreen mode.");
- }
-
/* polling mode sample settling delay */
if (delay < 0 || delay > 15) {
dev_dbg(wm->dev, "supplied delay out of range.");
--
1.5.6
--
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