From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp
---
kernel/drivers/gpio/gpio-adnp.c | 100 ++++++++++++++++++++++++-------------------------
1 files changed, 49 insertions(+), 51 deletions(-)
diff --git a/kernel/drivers/gpio/gpio-adnp.c b/kernel/drivers/gpio/gpio-adnp.c
index 12acdac..8eedfc6 100644
--- a/kernel/drivers/gpio/gpio-adnp.c
+++ b/kernel/drivers/gpio/gpio-adnp.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2011-2012 Avionic Design GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/gpio/driver.h>
@@ -241,36 +238,6 @@
mutex_unlock(&adnp->i2c_lock);
}
-static int adnp_gpio_setup(struct adnp *adnp, unsigned int num_gpios)
-{
- struct gpio_chip *chip = &adnp->gpio;
- int err;
-
- adnp->reg_shift = get_count_order(num_gpios) - 3;
-
- chip->direction_input = adnp_gpio_direction_input;
- chip->direction_output = adnp_gpio_direction_output;
- chip->get = adnp_gpio_get;
- chip->set = adnp_gpio_set;
- chip->can_sleep = true;
-
- if (IS_ENABLED(CONFIG_DEBUG_FS))
- chip->dbg_show = adnp_gpio_dbg_show;
-
- chip->base = -1;
- chip->ngpio = num_gpios;
- chip->label = adnp->client->name;
- chip->parent = &adnp->client->dev;
- chip->of_node = chip->parent->of_node;
- chip->owner = THIS_MODULE;
-
- err = devm_gpiochip_add_data(&adnp->client->dev, chip, adnp);
- if (err)
- return err;
-
- return 0;
-}
-
static irqreturn_t adnp_irq(int irq, void *data)
{
struct adnp *adnp = data;
@@ -467,18 +434,54 @@
return err;
}
- err = gpiochip_irqchip_add_nested(chip,
- &adnp_irq_chip,
- 0,
- handle_simple_irq,
- IRQ_TYPE_NONE);
- if (err) {
- dev_err(chip->parent,
- "could not connect irqchip to gpiochip\n");
- return err;
+ return 0;
+}
+
+static int adnp_gpio_setup(struct adnp *adnp, unsigned int num_gpios,
+ bool is_irq_controller)
+{
+ struct gpio_chip *chip = &adnp->gpio;
+ int err;
+
+ adnp->reg_shift = get_count_order(num_gpios) - 3;
+
+ chip->direction_input = adnp_gpio_direction_input;
+ chip->direction_output = adnp_gpio_direction_output;
+ chip->get = adnp_gpio_get;
+ chip->set = adnp_gpio_set;
+ chip->can_sleep = true;
+
+ if (IS_ENABLED(CONFIG_DEBUG_FS))
+ chip->dbg_show = adnp_gpio_dbg_show;
+
+ chip->base = -1;
+ chip->ngpio = num_gpios;
+ chip->label = adnp->client->name;
+ chip->parent = &adnp->client->dev;
+ chip->of_node = chip->parent->of_node;
+ chip->owner = THIS_MODULE;
+
+ if (is_irq_controller) {
+ struct gpio_irq_chip *girq;
+
+ err = adnp_irq_setup(adnp);
+ if (err)
+ return err;
+
+ girq = &chip->irq;
+ girq->chip = &adnp_irq_chip;
+ /* This will let us handle the parent IRQ in the driver */
+ girq->parent_handler = NULL;
+ girq->num_parents = 0;
+ girq->parents = NULL;
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_simple_irq;
+ girq->threaded = true;
}
- gpiochip_set_nested_irqchip(chip, &adnp_irq_chip, adnp->client->irq);
+ err = devm_gpiochip_add_data(&adnp->client->dev, chip, adnp);
+ if (err)
+ return err;
return 0;
}
@@ -506,15 +509,10 @@
mutex_init(&adnp->i2c_lock);
adnp->client = client;
- err = adnp_gpio_setup(adnp, num_gpios);
+ err = adnp_gpio_setup(adnp, num_gpios,
+ of_property_read_bool(np, "interrupt-controller"));
if (err)
return err;
-
- if (of_find_property(np, "interrupt-controller", NULL)) {
- err = adnp_irq_setup(adnp);
- if (err)
- return err;
- }
i2c_set_clientdata(client, adnp);
--
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