A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Revert "pinctrl: msm: Configure interrupts as input and gpio mode"

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This reverts commit fe2731211e.

By default the commit muxes the pin to a GPIO upon a request_irq()
call from the client driver. This is incorrect as the client driver
could have muxed the pin already for a different purpose. Hence,
revert this default behavior to not enforce this on the clients.

Change-Id: Ib2500f57cf7e49a7bffd3309801e42166b748db9
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
This commit is contained in:
Raghavendra Rao Ananta 2020-02-04 21:16:00 -08:00
commit 1b9b399796
1 changed files with 1 additions and 38 deletions
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39
drivers/pinctrl/qcom/pinctrl-msm.c
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@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2013, Sony Mobile Communications AB.
* Copyright (c) 2013-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2013-2020, The Linux Foundation. All rights reserved.
*/
#include <linux/delay.h>
@ -998,41 +998,6 @@ static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
return 0;
}
static int msm_gpio_irq_reqres(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
int ret;
if (!try_module_get(gc->owner))
return -ENODEV;
ret = msm_pinmux_request_gpio(pctrl->pctrl, NULL, d->hwirq);
if (ret)
goto out;
msm_gpio_direction_input(gc, d->hwirq);
if (gpiochip_lock_as_irq(gc, d->hwirq)) {
dev_err(gc->parent,
"unable to lock HW IRQ %lu for IRQ\n",
d->hwirq);
ret = -EINVAL;
goto out;
}
return 0;
out:
module_put(gc->owner);
return ret;
}
static void msm_gpio_irq_relres(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
gpiochip_unlock_as_irq(gc, d->hwirq);
module_put(gc->owner);
}
static void msm_gpio_irq_handler(struct irq_desc *desc)
{
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
@ -1129,8 +1094,6 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
pctrl->irq_chip.irq_eoi = irq_chip_eoi_parent;
pctrl->irq_chip.irq_set_type = msm_gpio_irq_set_type;
pctrl->irq_chip.irq_set_wake = msm_gpio_irq_set_wake;
pctrl->irq_chip.irq_request_resources = msm_gpio_irq_reqres;
pctrl->irq_chip.irq_release_resources = msm_gpio_irq_relres;
dn = of_parse_phandle(pctrl->dev->of_node, "wakeup-parent", 0);
if (dn) {