watchdog: meson: add watchdog support for txl

PD#168480: add watchdog support for txl

Change-Id: I53ac23d1fedec155871ecec3229dedeb13ca7076
Signed-off-by: Bo Yang <bo.yang@amlogic.com>

diff --git a/Documentation/devicetree/bindings/amlogic/meson-wdt.txt b/Documentation/devicetree/bindings/amlogic/meson-wdt.txt
new file mode 100644 (file)
index 0000000..bc5a2ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/amlogic/meson-wdt.txt
@@ -0,0 +1,22 @@
+Meson SoCs Watchdog timer
+
+Required properties:
+
+- compatible : should be one of
+               "amlogic,meson-gxbb-wdt"
+               "amlogic,meson-gxl-wdt"
+               "amlogic,meson-axg-wdt"
+               "amlogic,meson-txl-wdt"
+               "amlogic,meson-txlx-wdt"
+               "amlogic,meson-g12a-wdt"
+- reg : Specifies base physical address and size of the registers.
+- clocks : Should be a phandle to the Watchdog clock source, for GXBB the xtal
+          is the default clock source.
+
+Example:
+
+wdt: watchdog@98d0 {
+       compatible = "amlogic,meson-gxbb-wdt";
+       reg = <0 0x98d0 0x0 0x10>;
+       clocks = <&xtal>;
+};

diff --git a/MAINTAINERS b/MAINTAINERS
index ed88657..53931e8 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13815,6 +13815,7 @@ F: drivers/amlogic/pm/*
 
 AMLOGIC WATCHDOG DRIVER SUPPORT
 M:     Bo Yang <bo.yang@amlogic.com>
+F:     Documentation/devicetree/bindings/amlogic/meson-wdt.txt
 F:     drivers/amlogic/watchdog/*
 
 AMLOGIC LED DRIVER SUPPORT

diff --git a/drivers/amlogic/watchdog/meson_wdt_v3.c b/drivers/amlogic/watchdog/meson_wdt_v3.c
index 61b6023..08faabe 100644 (file)
--- a/drivers/amlogic/watchdog/meson_wdt_v3.c
+++ b/drivers/amlogic/watchdog/meson_wdt_v3.c
@@ -182,6 +182,7 @@ static const struct of_device_id meson_wdt_dt_ids[] = {
         { .compatible = "amlogic,meson-gxbb-wdt", },
         { .compatible = "amlogic,meson-gxl-wdt", },
         { .compatible = "amlogic,meson-axg-wdt", },
+        { .compatible = "amlogic,meson-txl-wdt", },
         { .compatible = "amlogic,meson-txlx-wdt", },
         { .compatible = "amlogic,meson-g12a-wdt", },
         { /* sentinel */ },