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watchdog: mediatek: Add wdt/toprgu resets for mt6589

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According to Android sources, mt6589 has 12 reset bits in the
WDT_SWSYSRST register. Populate toprgu_sw_rst_num to allow toprgu resets
in device trees of the many compatible devices.

Signed-off-by: Luca Leonardo Scorcia <l.scorcia@gmail.com>
Link: https://patch.msgid.link/20260908174259.9009-2-l.scorcia@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Luca Leonardo Scorcia 2026-09-08 19:38:28 +02:00 committed by Guenter Roeck
parent 7c0fd67f93
commit f12d5facde
1 changed files with 6 additions and 1 deletions
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7
drivers/watchdog/mtk_wdt.c
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@ -66,6 +66,7 @@
#define DRV_NAME "mtk-wdt"
#define DRV_VERSION "1.0"
#define MT6589_TOPRGU_SW_RST_NUM 12
#define MT7988_TOPRGU_SW_RST_NUM 24
static bool nowayout = WATCHDOG_NOWAYOUT;
@ -90,6 +91,10 @@ static const struct mtk_wdt_data mt2712_data = {
.toprgu_sw_rst_num = MT2712_TOPRGU_SW_RST_NUM,
};
static const struct mtk_wdt_data mt6589_data = {
.toprgu_sw_rst_num = MT6589_TOPRGU_SW_RST_NUM,
};
static const struct mtk_wdt_data mt6735_data = {
.toprgu_sw_rst_num = MT6735_TOPRGU_RST_NUM,
};
@ -543,7 +548,7 @@ static int mtk_wdt_resume(struct device *dev)
static const struct of_device_id mtk_wdt_dt_ids[] = {
{ .compatible = "mediatek,mt2712-wdt", .data = &mt2712_data },
{ .compatible = "mediatek,mt6589-wdt" },
{ .compatible = "mediatek,mt6589-wdt", .data = &mt6589_data },
{ .compatible = "mediatek,mt6735-wdt", .data = &mt6735_data },
{ .compatible = "mediatek,mt6795-wdt", .data = &mt6795_data },
{ .compatible = "mediatek,mt7986-wdt", .data = &mt7986_data },