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-max732x.c | 82 ++++++++++++++++------------------------
1 files changed, 33 insertions(+), 49 deletions(-)
diff --git a/kernel/drivers/gpio/gpio-max732x.c b/kernel/drivers/gpio/gpio-max732x.c
index f03cb0b..238cbe9 100644
--- a/kernel/drivers/gpio/gpio-max732x.c
+++ b/kernel/drivers/gpio/gpio-max732x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* MAX732x I2C Port Expander with 8/16 I/O
*
@@ -7,10 +8,6 @@
* Copyright (C) 2015 Linus Walleij <linus.walleij@linaro.org>
*
* Derived from drivers/gpio/pca953x.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
*/
#include <linux/module.h>
@@ -506,6 +503,8 @@
if (((pdata && pdata->irq_base) || client->irq)
&& has_irq != INT_NONE) {
+ struct gpio_irq_chip *girq;
+
if (pdata)
irq_base = pdata->irq_base;
chip->irq_features = has_irq;
@@ -520,19 +519,17 @@
client->irq);
return ret;
}
- ret = gpiochip_irqchip_add_nested(&chip->gpio_chip,
- &max732x_irq_chip,
- irq_base,
- handle_simple_irq,
- IRQ_TYPE_NONE);
- if (ret) {
- dev_err(&client->dev,
- "could not connect irqchip to gpiochip\n");
- return ret;
- }
- gpiochip_set_nested_irqchip(&chip->gpio_chip,
- &max732x_irq_chip,
- client->irq);
+
+ girq = &chip->gpio_chip.irq;
+ girq->chip = &max732x_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;
+ girq->first = irq_base; /* FIXME: get rid of this */
}
return 0;
@@ -652,12 +649,12 @@
case 0x60:
chip->client_group_a = client;
if (nr_port > 8) {
- c = i2c_new_dummy(client->adapter, addr_b);
- if (!c) {
+ c = devm_i2c_new_dummy_device(&client->dev,
+ client->adapter, addr_b);
+ if (IS_ERR(c)) {
dev_err(&client->dev,
"Failed to allocate I2C device\n");
- ret = -ENODEV;
- goto out_failed;
+ return PTR_ERR(c);
}
chip->client_group_b = chip->client_dummy = c;
}
@@ -665,12 +662,12 @@
case 0x50:
chip->client_group_b = client;
if (nr_port > 8) {
- c = i2c_new_dummy(client->adapter, addr_a);
- if (!c) {
+ c = devm_i2c_new_dummy_device(&client->dev,
+ client->adapter, addr_a);
+ if (IS_ERR(c)) {
dev_err(&client->dev,
"Failed to allocate I2C device\n");
- ret = -ENODEV;
- goto out_failed;
+ return PTR_ERR(c);
}
chip->client_group_a = chip->client_dummy = c;
}
@@ -678,39 +675,35 @@
default:
dev_err(&client->dev, "invalid I2C address specified %02x\n",
client->addr);
- ret = -EINVAL;
- goto out_failed;
+ return -EINVAL;
}
if (nr_port > 8 && !chip->client_dummy) {
dev_err(&client->dev,
"Failed to allocate second group I2C device\n");
- ret = -ENODEV;
- goto out_failed;
+ return -ENODEV;
}
mutex_init(&chip->lock);
ret = max732x_readb(chip, is_group_a(chip, 0), &chip->reg_out[0]);
if (ret)
- goto out_failed;
+ return ret;
if (nr_port > 8) {
ret = max732x_readb(chip, is_group_a(chip, 8), &chip->reg_out[1]);
if (ret)
- goto out_failed;
+ return ret;
}
-
- ret = gpiochip_add_data(&chip->gpio_chip, chip);
- if (ret)
- goto out_failed;
ret = max732x_irq_setup(chip, id);
- if (ret) {
- gpiochip_remove(&chip->gpio_chip);
- goto out_failed;
- }
+ if (ret)
+ return ret;
- if (pdata && pdata->setup) {
+ ret = devm_gpiochip_add_data(&client->dev, &chip->gpio_chip, chip);
+ if (ret)
+ return ret;
+
+ if (pdata->setup) {
ret = pdata->setup(client, chip->gpio_chip.base,
chip->gpio_chip.ngpio, pdata->context);
if (ret < 0)
@@ -719,10 +712,6 @@
i2c_set_clientdata(client, chip);
return 0;
-
-out_failed:
- i2c_unregister_device(chip->client_dummy);
- return ret;
}
static int max732x_remove(struct i2c_client *client)
@@ -741,11 +730,6 @@
return ret;
}
}
-
- gpiochip_remove(&chip->gpio_chip);
-
- /* unregister any dummy i2c_client */
- i2c_unregister_device(chip->client_dummy);
return 0;
}
--
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