From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/drivers/staging/most/dim2/dim2.c | 110 ++++++++++++++++++++++++-------------------------------
1 files changed, 48 insertions(+), 62 deletions(-)
diff --git a/kernel/drivers/staging/most/dim2/dim2.c b/kernel/drivers/staging/most/dim2/dim2.c
index 31fbc1a..2fd6886 100644
--- a/kernel/drivers/staging/most/dim2/dim2.c
+++ b/kernel/drivers/staging/most/dim2/dim2.c
@@ -20,8 +20,7 @@
#include <linux/dma-mapping.h>
#include <linux/sched.h>
#include <linux/kthread.h>
-
-#include "most/core.h"
+#include <linux/most.h>
#include "hal.h"
#include "errors.h"
#include "sysfs.h"
@@ -47,7 +46,7 @@
static DEFINE_SPINLOCK(dim_lock);
static void dim2_tasklet_fn(unsigned long data);
-static DECLARE_TASKLET(dim2_tasklet, dim2_tasklet_fn, 0);
+static DECLARE_TASKLET_OLD(dim2_tasklet, dim2_tasklet_fn);
/**
* struct hdm_channel - private structure to keep channel specific data
@@ -101,12 +100,12 @@
struct medialb_bus bus;
void (*on_netinfo)(struct most_interface *most_iface,
unsigned char link_state, unsigned char *addrs);
- void (*disable_platform)(struct platform_device *);
+ void (*disable_platform)(struct platform_device *pdev);
};
struct dim2_platform_data {
- int (*enable)(struct platform_device *);
- void (*disable)(struct platform_device *);
+ int (*enable)(struct platform_device *pdev);
+ void (*disable)(struct platform_device *pdev);
};
#define iface_to_hdm(iface) container_of(iface, struct dim2_hdm, most_iface)
@@ -116,7 +115,8 @@
(((p)[1] == 0x18) && ((p)[2] == 0x05) && ((p)[3] == 0x0C) && \
((p)[13] == 0x3C) && ((p)[14] == 0x00) && ((p)[15] == 0x0A))
-bool dim2_sysfs_get_state_cb(void)
+static ssize_t state_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
bool state;
unsigned long flags;
@@ -125,27 +125,17 @@
state = dim_get_lock_state();
spin_unlock_irqrestore(&dim_lock, flags);
- return state;
+ return sysfs_emit(buf, "%s\n", state ? "locked" : "");
}
-/**
- * dimcb_io_read - callback from HAL to read an I/O register
- * @ptr32: register address
- */
-u32 dimcb_io_read(u32 __iomem *ptr32)
-{
- return readl(ptr32);
-}
+static DEVICE_ATTR_RO(state);
-/**
- * dimcb_io_write - callback from HAL to write value to an I/O register
- * @ptr32: register address
- * @value: value to write
- */
-void dimcb_io_write(u32 __iomem *ptr32, u32 value)
-{
- writel(value, ptr32);
-}
+static struct attribute *dim2_attrs[] = {
+ &dev_attr_state.attr,
+ NULL,
+};
+
+ATTRIBUTE_GROUPS(dim2);
/**
* dimcb_on_error - callback from HAL to report miscommunication between
@@ -733,6 +723,23 @@
return -EINVAL;
}
+static void dim2_release(struct device *d)
+{
+ struct dim2_hdm *dev = container_of(d, struct dim2_hdm, dev);
+ unsigned long flags;
+
+ kthread_stop(dev->netinfo_task);
+
+ spin_lock_irqsave(&dim_lock, flags);
+ dim_shutdown();
+ spin_unlock_irqrestore(&dim_lock, flags);
+
+ if (dev->disable_platform)
+ dev->disable_platform(to_platform_device(d->parent));
+
+ kfree(dev);
+}
+
/*
* dim2_probe - dim2 probe handler
* @pdev: platform device structure
@@ -753,7 +760,7 @@
enum { MLB_INT_IDX, AHB0_INT_IDX };
- dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
@@ -765,25 +772,27 @@
"microchip,clock-speed", &clock_speed);
if (ret) {
dev_err(&pdev->dev, "missing dt property clock-speed\n");
- return ret;
+ goto err_free_dev;
}
ret = get_dim2_clk_speed(clock_speed, &dev->clk_speed);
if (ret) {
dev_err(&pdev->dev, "bad dt property clock-speed\n");
- return ret;
+ goto err_free_dev;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dev->io_base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(dev->io_base))
- return PTR_ERR(dev->io_base);
+ if (IS_ERR(dev->io_base)) {
+ ret = PTR_ERR(dev->io_base);
+ goto err_free_dev;
+ }
of_id = of_match_node(dim2_of_match, pdev->dev.of_node);
pdata = of_id->data;
ret = pdata && pdata->enable ? pdata->enable(pdev) : 0;
if (ret)
- return ret;
+ goto err_free_dev;
dev->disable_platform = pdata ? pdata->disable : NULL;
@@ -797,7 +806,6 @@
irq = platform_get_irq(pdev, AHB0_INT_IDX);
if (irq < 0) {
- dev_err(&pdev->dev, "failed to get ahb0_int irq: %d\n", irq);
ret = irq;
goto err_shutdown_dim;
}
@@ -811,7 +819,6 @@
irq = platform_get_irq(pdev, MLB_INT_IDX);
if (irq < 0) {
- dev_err(&pdev->dev, "failed to get mlb_int irq: %d\n", irq);
ret = irq;
goto err_shutdown_dim;
}
@@ -875,32 +882,20 @@
dev->most_iface.poison_channel = poison_channel;
dev->most_iface.request_netinfo = request_netinfo;
dev->most_iface.driver_dev = &pdev->dev;
- dev->dev.init_name = "dim2_state";
- dev->dev.parent = &dev->most_iface.dev;
+ dev->most_iface.dev = &dev->dev;
+ dev->dev.init_name = dev->name;
+ dev->dev.parent = &pdev->dev;
+ dev->dev.release = dim2_release;
- ret = most_register_interface(&dev->most_iface);
- if (ret) {
- dev_err(&pdev->dev, "failed to register MOST interface\n");
- goto err_stop_thread;
- }
+ return most_register_interface(&dev->most_iface);
- ret = dim2_sysfs_probe(&dev->dev);
- if (ret) {
- dev_err(&pdev->dev, "failed to create sysfs attribute\n");
- goto err_unreg_iface;
- }
-
- return 0;
-
-err_unreg_iface:
- most_deregister_interface(&dev->most_iface);
-err_stop_thread:
- kthread_stop(dev->netinfo_task);
err_shutdown_dim:
dim_shutdown();
err_disable_platform:
if (dev->disable_platform)
dev->disable_platform(pdev);
+err_free_dev:
+ kfree(dev);
return ret;
}
@@ -914,18 +909,8 @@
static int dim2_remove(struct platform_device *pdev)
{
struct dim2_hdm *dev = platform_get_drvdata(pdev);
- unsigned long flags;
- dim2_sysfs_destroy(&dev->dev);
most_deregister_interface(&dev->most_iface);
- kthread_stop(dev->netinfo_task);
-
- spin_lock_irqsave(&dim_lock, flags);
- dim_shutdown();
- spin_unlock_irqrestore(&dim_lock, flags);
-
- if (dev->disable_platform)
- dev->disable_platform(pdev);
return 0;
}
@@ -1100,6 +1085,7 @@
.driver = {
.name = "hdm_dim2",
.of_match_table = dim2_of_match,
+ .dev_groups = dim2_groups,
},
};
--
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