[PATCH v6 2/3] watchdog: renesas_wdt: Add R-Car Gen2 support

[Fabrizio Castro <fabrizio.castro@bp.renesas.com>]

Due to commits:
* "ARM: shmobile: Add watchdog support",
* "ARM: shmobile: rcar-gen2: Add watchdog support", and
* "soc: renesas: rcar-rst: Enable watchdog as reset trigger for Gen2",
we now have everything we needed for the watchdog to work on Gen2 and
RZ/G1.

This commit adds "renesas,rcar-gen2-wdt" as compatible string for R-Car
Gen2 and RZ/G1.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
---
v5->v6:
* stripped suspend/resume functionality
* now gen2 compatible string comes before gen3

Geert,

you marked v5 as:
Reviewed-and-Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>

but since I have flipped the order, I am not including it as you may
disagree with the change.

Thanks,
Fab

 drivers/watchdog/renesas_wdt.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index cbf8e4d..609056f 100644
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -232,12 +232,8 @@ static int __maybe_unused rwdt_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(rwdt_pm_ops, rwdt_suspend, rwdt_resume);
 
-/*
- * This driver does also fit for R-Car Gen2 (r8a779[0-4]) WDT. However, for SMP
- * to work there, one also needs a RESET (RST) driver which does not exist yet
- * due to HW issues. This needs to be solved before adding compatibles here.
- */
 static const struct of_device_id rwdt_ids[] = {
+	{ .compatible = "renesas,rcar-gen2-wdt", },
 	{ .compatible = "renesas,rcar-gen3-wdt", },
 	{ /* sentinel */ }
 };
-- 
2.7.4