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ODROIDC: Add to read board info via device tree

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Change-Id: I9c4efd246b199c45f12e5f6e57f96cb0fb1e447a
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
This commit is contained in:
Dongjin Kim
2014-12-09 15:50:58 +09:00
parent dae65c53d8
commit e347111be5
1 changed files with 38 additions and 0 deletions
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38
drivers/hardkernel/odroid-sysfs.c
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@@ -29,6 +29,7 @@
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/hrtimer.h>
#include <asm/setup.h>
MODULE_AUTHOR("Hardkernel Co,.Ltd");
MODULE_DESCRIPTION("SYSFS driver for ODROID hardware");
@@ -64,8 +65,33 @@ static ssize_t set_poweroff_trigger(struct class *class,
return count;
}
static const char *product;
static const char *serialno;
static const char *mac_addr;
static ssize_t show_product(struct class *class,
struct class_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", product);
}
static ssize_t show_serialno(struct class *class,
struct class_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", serialno);
}
static ssize_t show_mac_addr(struct class *class,
struct class_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", mac_addr);
}
static struct class_attribute odroid_class_attrs[] = {
__ATTR(poweroff_trigger, 0222, NULL, set_poweroff_trigger),
__ATTR(product, 0444, show_product, NULL),
__ATTR(serialno, 0444, show_serialno, NULL),
__ATTR(mac_addr, 0444, show_mac_addr, NULL),
__ATTR_NULL,
};
@@ -87,6 +113,9 @@ static enum hrtimer_restart input_timer_function(struct hrtimer *timer)
static int odroid_sysfs_probe(struct platform_device *pdev)
{
int error = 0;
#ifdef CONFIG_USE_OF
struct device_node *node;
#endif
#if defined(SLEEP_DISABLE_FLAG)
#if defined(CONFIG_HAS_WAKELOCK)
@@ -126,6 +155,15 @@ static int odroid_sysfs_probe(struct platform_device *pdev)
hrtimer_init(&input_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
input_timer.function = input_timer_function;
#ifdef CONFIG_USE_OF
if (pdev->dev.of_node) {
node = pdev->dev.of_node;
of_property_read_string(node, "product", &product);
of_property_read_string(node, "serialno", &serialno);
of_property_read_string(node, "mac_addr", &mac_addr);
}
#endif
err_out:
return error;
}