watchdog: pic32-wdt: Add PIC32 watchdog driver

Add support for the watchdog peripheral found on PIC32 class
devices.

Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-watchdog@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12701/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index fb947655badd..42408a61255c 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1475,6 +1475,19 @@ config MT7621_WDT
         help
           Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
 
+config PIC32_WDT
+        tristate "Microchip PIC32 hardware watchdog"
+        select WATCHDOG_CORE
+        depends on MACH_PIC32
+        help
+          Watchdog driver for the built in watchdog hardware in a PIC32.
+
+          Configuration bits must be set appropriately for the watchdog to be
+          controlled by this driver.
+
+          To compile this driver as a loadable module, choose M here.
+          The module will be called pic32-wdt.
+
 # PARISC Architecture
 
 # POWERPC Architecture