Patch "pinctrl: mediatek: fix dual-edge code defect" has been added to the 4.4-stable tree

Patch "pinctrl: mediatek: fix dual-edge code defect" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    pinctrl: mediatek: fix dual-edge code defect

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     pinctrl-mediatek-fix-dual-edge-code-defect.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 5edf673d07fdcb6498be24914f3f38f8d8843199 Mon Sep 17 00:00:00 2001
From: "hongkun.cao" <hongkun.cao@mediatek.com>
Date: Sat, 21 May 2016 15:23:39 +0800
Subject: pinctrl: mediatek: fix dual-edge code defect

From: hongkun.cao <hongkun.cao@mediatek.com>

commit 5edf673d07fdcb6498be24914f3f38f8d8843199 upstream.

When a dual-edge irq is triggered, an incorrect irq will be reported on
condition that the external signal is not stable and this incorrect irq
has been registered.
Correct the register offset.

Signed-off-by: Hongkun Cao <hongkun.cao@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/pinctrl/mediatek/pinctrl-mtk-common.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -1191,9 +1191,10 @@ static void mtk_eint_irq_handler(struct
 	const struct mtk_desc_pin *pin;
 
 	chained_irq_enter(chip, desc);
-	for (eint_num = 0; eint_num < pctl->devdata->ap_num; eint_num += 32) {
+	for (eint_num = 0;
+	     eint_num < pctl->devdata->ap_num;
+	     eint_num += 32, reg += 4) {
 		status = readl(reg);
-		reg += 4;
 		while (status) {
 			offset = __ffs(status);
 			index = eint_num + offset;


Patches currently in stable-queue which might be from hongkun.cao@mediatek.com are

queue-4.4/pinctrl-mediatek-fix-dual-edge-code-defect.patch