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wdt: mtk: register/free regmap to get it from eth driver

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This commit is contained in:
Frank Wunderlich
2024-08-11 17:58:08 +02:00
parent 9b1321bc2d
commit bd71a30dfc
1 changed files with 15 additions and 0 deletions
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15
drivers/watchdog/mtk_wdt.c
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@@ -10,6 +10,7 @@
#include <hang.h>
#include <wdt.h>
#include <asm/io.h>
#include <regmap.h>
#include <linux/bitops.h>
#define MTK_WDT_MODE 0x00
@@ -36,6 +37,7 @@
struct mtk_wdt_priv {
void __iomem *base;
struct regmap *regmap;
};
static int mtk_wdt_reset(struct udevice *dev)
@@ -122,11 +124,16 @@ static int mtk_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags)
static int mtk_wdt_probe(struct udevice *dev)
{
struct mtk_wdt_priv *priv = dev_get_priv(dev);
int ret;
priv->base = dev_read_addr_ptr(dev);
if (!priv->base)
return -ENOENT;
ret = regmap_init_mem(dev_ofnode(dev), &priv->regmap);
if (ret)
return ret;
/* Clear status */
clrsetbits_le32(priv->base + MTK_WDT_MODE,
WDT_MODE_IRQ_EN | WDT_MODE_EXTPOL, WDT_MODE_KEY);
@@ -134,6 +141,13 @@ static int mtk_wdt_probe(struct udevice *dev)
return mtk_wdt_stop(dev);
}
static int mtk_wdt_remove(struct udevice *dev)
{
struct mtk_wdt_priv *priv = dev_get_priv(dev);
regmap_uninit(priv->regmap);
return 0;
}
static const struct wdt_ops mtk_wdt_ops = {
.start = mtk_wdt_start,
.reset = mtk_wdt_reset,
@@ -155,6 +169,7 @@ U_BOOT_DRIVER(mtk_wdt) = {
.of_match = mtk_wdt_ids,
.priv_auto = sizeof(struct mtk_wdt_priv),
.probe = mtk_wdt_probe,
.remove = mtk_wdt_remove,
.ops = &mtk_wdt_ops,
.flags = DM_FLAG_PRE_RELOC,
};