From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:34766 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932267AbcJYSbW (ORCPT ); Tue, 25 Oct 2016 14:31:22 -0400 Subject: Patch "gpio: mpc8xxx: Correct irq handler function" has been added to the 4.7-stable tree To: Gang.Liu@nxp.com, gregkh@linuxfoundation.org, linus.walleij@linaro.org Cc: , From: Date: Tue, 25 Oct 2016 20:31:29 +0200 Message-ID: <14774202891260@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled gpio: mpc8xxx: Correct irq handler function to the 4.7-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: gpio-mpc8xxx-correct-irq-handler-function.patch and it can be found in the queue-4.7 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From d71cf15b865bdd45925f7b094d169aaabd705145 Mon Sep 17 00:00:00 2001 From: Liu Gang Date: Fri, 21 Oct 2016 15:31:28 +0800 Subject: gpio: mpc8xxx: Correct irq handler function From: Liu Gang commit d71cf15b865bdd45925f7b094d169aaabd705145 upstream. >>From the beginning of the gpio-mpc8xxx.c, the "handle_level_irq" has being used to handle GPIO interrupts in the PowerPC/Layerscape platforms. But actually, almost all PowerPC/Layerscape platforms assert an interrupt request upon either a high-to-low change or any change on the state of the signal. So the "handle_level_irq" is not reasonable for PowerPC/Layerscape GPIO interrupt, it should be "handle_edge_irq". Otherwise the system may lost some interrupts from the PIN's state changes. Signed-off-by: Liu Gang Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman --- drivers/gpio/gpio-mpc8xxx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -239,7 +239,7 @@ static int mpc8xxx_gpio_irq_map(struct i irq_hw_number_t hwirq) { irq_set_chip_data(irq, h->host_data); - irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_level_irq); + irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_edge_irq); return 0; } Patches currently in stable-queue which might be from Gang.Liu@nxp.com are queue-4.7/gpio-mpc8xxx-correct-irq-handler-function.patch