watchdog: mtk_wdt: mt7986: Add toprgu reset controller support

Besides watchdog, the mt7986 toprgu module also provides software reset
functionality for various peripheral subsystems
(eg, ethernet, pcie, and connectivity)

Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220105100456.7126-3-sam.shih@mediatek.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
index fe5a2ec..f0d4e3c 100644 (file)
--- 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/mt7986-resets.h>
 #include <dt-bindings/reset/mt8183-resets.h>
 #include <dt-bindings/reset/mt8186-resets.h>
 #include <dt-bindings/reset/mt8192-resets.h>
@@ -77,6 +78,10 @@ static const struct mtk_wdt_data mt2712_data = {
        .toprgu_sw_rst_num = MT2712_TOPRGU_SW_RST_NUM,
 };
 
+static const struct mtk_wdt_data mt7986_data = {
+       .toprgu_sw_rst_num = MT7986_TOPRGU_SW_RST_NUM,
+};
+
 static const struct mtk_wdt_data mt8183_data = {
        .toprgu_sw_rst_num = MT8183_TOPRGU_SW_RST_NUM,
 };
@@ -423,6 +428,7 @@ 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,mt7986-wdt", .data = &mt7986_data },
        { .compatible = "mediatek,mt8183-wdt", .data = &mt8183_data },
        { .compatible = "mediatek,mt8186-wdt", .data = &mt8186_data },
        { .compatible = "mediatek,mt8192-wdt", .data = &mt8192_data },