[PATCH v4 2/7] watchdog: mediatek: Add wdt/toprgu resets for mt6589
From: Luca Leonardo Scorcia <hidden>
Date: 2026-08-19 10:19:13
Also in:
linux-devicetree, linux-mediatek, linux-watchdog, lkml
Subsystem:
the rest, watchdog device drivers · Maintainers:
Linus Torvalds, Wim Van Sebroeck, Guenter Roeck
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 <redacted> --- drivers/watchdog/mtk_wdt.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
index 91d110646e16..f8208fb0f723 100644
--- a/drivers/watchdog/mtk_wdt.c
+++ b/drivers/watchdog/mtk_wdt.c@@ -10,6 +10,7 @@ */ #include <dt-bindings/reset/mt2712-resets.h> +#include <dt-bindings/reset/mediatek,mt6589-wdt.h> #include <dt-bindings/reset/mediatek,mt6735-wdt.h> #include <dt-bindings/reset/mediatek,mt6795-resets.h> #include <dt-bindings/reset/mt7986-resets.h>
@@ -88,6 +89,10 @@ 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, };
@@ -493,7 +498,7 @@ 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 },
--
2.43.0