From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/gpio/gpio-mb86s7x.c | 52 ++++++++++++++++++++++++++++++++++++++--------------
1 files changed, 38 insertions(+), 14 deletions(-)
diff --git a/kernel/drivers/gpio/gpio-mb86s7x.c b/kernel/drivers/gpio/gpio-mb86s7x.c
index 3134c0d..37c5363 100644
--- a/kernel/drivers/gpio/gpio-mb86s7x.c
+++ b/kernel/drivers/gpio/gpio-mb86s7x.c
@@ -1,19 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/drivers/gpio/gpio-mb86s7x.c
*
* Copyright (C) 2015 Fujitsu Semiconductor Limited
* Copyright (C) 2015 Linaro Ltd.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
+#include <linux/acpi.h>
#include <linux/io.h>
#include <linux/init.h>
#include <linux/clk.h>
@@ -26,6 +19,9 @@
#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
+
+#include "gpiolib.h"
+#include "gpiolib-acpi.h"
/*
* Only first 8bits of a register correspond to each pin,
@@ -143,10 +139,25 @@
spin_unlock_irqrestore(&gchip->lock, flags);
}
+static int mb86s70_gpio_to_irq(struct gpio_chip *gc, unsigned int offset)
+{
+ int irq, index;
+
+ for (index = 0;; index++) {
+ irq = platform_get_irq(to_platform_device(gc->parent), index);
+ if (irq < 0)
+ return irq;
+ if (irq == 0)
+ break;
+ if (irq_get_irq_data(irq)->hwirq == offset)
+ return irq;
+ }
+ return -EINVAL;
+}
+
static int mb86s70_gpio_probe(struct platform_device *pdev)
{
struct mb86s70_gpio_chip *gchip;
- struct resource *res;
int ret;
gchip = devm_kzalloc(&pdev->dev, sizeof(*gchip), GFP_KERNEL);
@@ -155,12 +166,11 @@
platform_set_drvdata(pdev, gchip);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- gchip->base = devm_ioremap_resource(&pdev->dev, res);
+ gchip->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(gchip->base))
return PTR_ERR(gchip->base);
- gchip->clk = devm_clk_get(&pdev->dev, NULL);
+ gchip->clk = devm_clk_get_optional(&pdev->dev, NULL);
if (IS_ERR(gchip->clk))
return PTR_ERR(gchip->clk);
@@ -176,6 +186,7 @@
gchip->gc.free = mb86s70_gpio_free;
gchip->gc.get = mb86s70_gpio_get;
gchip->gc.set = mb86s70_gpio_set;
+ gchip->gc.to_irq = mb86s70_gpio_to_irq;
gchip->gc.label = dev_name(&pdev->dev);
gchip->gc.ngpio = 32;
gchip->gc.owner = THIS_MODULE;
@@ -186,15 +197,19 @@
if (ret) {
dev_err(&pdev->dev, "couldn't register gpio driver\n");
clk_disable_unprepare(gchip->clk);
+ return ret;
}
- return ret;
+ acpi_gpiochip_request_interrupts(&gchip->gc);
+
+ return 0;
}
static int mb86s70_gpio_remove(struct platform_device *pdev)
{
struct mb86s70_gpio_chip *gchip = platform_get_drvdata(pdev);
+ acpi_gpiochip_free_interrupts(&gchip->gc);
gpiochip_remove(&gchip->gc);
clk_disable_unprepare(gchip->clk);
@@ -207,10 +222,19 @@
};
MODULE_DEVICE_TABLE(of, mb86s70_gpio_dt_ids);
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id mb86s70_gpio_acpi_ids[] = {
+ { "SCX0007" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(acpi, mb86s70_gpio_acpi_ids);
+#endif
+
static struct platform_driver mb86s70_gpio_driver = {
.driver = {
.name = "mb86s70-gpio",
.of_match_table = mb86s70_gpio_dt_ids,
+ .acpi_match_table = ACPI_PTR(mb86s70_gpio_acpi_ids),
},
.probe = mb86s70_gpio_probe,
.remove = mb86s70_gpio_remove,
--
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