Patch "pinctrl/amd: Set the level based on ACPI tables" has been added to the 4.9-stable tree

Patch "pinctrl/amd: Set the level based on ACPI tables" has been added to the 4.9-stable tree

[gregkh]

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

    pinctrl/amd: Set the level based on ACPI tables

to the 4.9-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-amd-set-the-level-based-on-acpi-tables.patch
and it can be found in the queue-4.9 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 2983f296f2327bc517e3b29344fce82271160197 Mon Sep 17 00:00:00 2001
From: Shyam Sundar S K <ssundark@amd.com>
Date: Thu, 8 Dec 2016 17:31:14 +0530
Subject: pinctrl/amd: Set the level based on ACPI tables

From: Shyam Sundar S K <ssundark@amd.com>

commit 2983f296f2327bc517e3b29344fce82271160197 upstream.

In the function amd_gpio_irq_set_type, read the values from
the ACPI table to set the level and drop the settings passed
by the client.

Reviewed-by: Pankaj Sen <Pankaj.Sen@amd.com>
Reviewed-by: Nitesh Kumar Agrawal <Nitesh-kumar.Agrawal@amd.com>
Reviewed-by: Shah, Nehal-bakulchandra <Nehal-bakulchandra.Shah@amd.com>
Signed-off-by: Shyam-sundar S-k <Shyam-sundar.S-k@amd.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/pinctrl/pinctrl-amd.c |   19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -382,26 +382,21 @@ static int amd_gpio_irq_set_type(struct
 {
 	int ret = 0;
 	u32 pin_reg;
-	unsigned long flags;
-	bool level_trig;
-	u32 active_level;
+	unsigned long flags, irq_flags;
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct amd_gpio *gpio_dev = gpiochip_get_data(gc);
 
 	spin_lock_irqsave(&gpio_dev->lock, flags);
 	pin_reg = readl(gpio_dev->base + (d->hwirq)*4);
 
-	/*
-	 * When level_trig is set EDGE and active_level is set HIGH in BIOS
-	 * default settings, ignore incoming settings from client and use
-	 * BIOS settings to configure GPIO register.
+	/* Ignore the settings coming from the client and
+	 * read the values from the ACPI tables
+	 * while setting the trigger type
 	 */
-	level_trig = !(pin_reg & (LEVEL_TRIGGER << LEVEL_TRIG_OFF));
-	active_level = pin_reg & (ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
 
-	if(level_trig &&
-	   ((active_level >> ACTIVE_LEVEL_OFF) == ACTIVE_HIGH))
-		type = IRQ_TYPE_EDGE_FALLING;
+	irq_flags = irq_get_trigger_type(d->irq);
+	if (irq_flags != IRQ_TYPE_NONE)
+		type = irq_flags;
 
 	switch (type & IRQ_TYPE_SENSE_MASK) {
 	case IRQ_TYPE_EDGE_RISING:


Patches currently in stable-queue which might be from ssundark@amd.com are

queue-4.9/pinctrl-amd-set-the-level-based-on-acpi-tables.patch