linux-kernel - [PATCH 6/8] power: reset: at91-reset: add support for sam9x60 SoC

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Date:   Wed, 16 Jan 2019 10:57:42 +0100
From:   Nicolas Ferre <nicolas.ferre@...rochip.com>
To:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Sebastian Reichel <sre@...nel.org>, <linux-pm@...r.kernel.org>,
        <netdev@...r.kernel.org>, "David S . Miller" <davem@...emloft.net>,
        <linux-usb@...r.kernel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>, <devicetree@...r.kernel.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>
Subject: [PATCH 6/8] power: reset: at91-reset: add support for sam9x60 SoC

Add support for additional reset causes and the proper compatibility
string for sam9x60 SoC. The restart function is the same as the samx7.

Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
---
 drivers/power/reset/at91-reset.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
index f44a9ffcc2ab..44ca983a49a1 100644
--- a/drivers/power/reset/at91-reset.c
+++ b/drivers/power/reset/at91-reset.c
@@ -44,6 +44,9 @@ enum reset_type {
 	RESET_TYPE_WATCHDOG	= 2,
 	RESET_TYPE_SOFTWARE	= 3,
 	RESET_TYPE_USER		= 4,
+	RESET_TYPE_CPU_FAIL	= 6,
+	RESET_TYPE_XTAL_FAIL	= 7,
+	RESET_TYPE_ULP2		= 8,
 };
 
 static void __iomem *at91_ramc_base[2], *at91_rstc_base;
@@ -164,6 +167,15 @@ static void __init at91_reset_status(struct platform_device *pdev)
 	case RESET_TYPE_USER:
 		reason = "user reset";
 		break;
+	case RESET_TYPE_CPU_FAIL:
+		reason = "CPU clock failure detection";
+		break;
+	case RESET_TYPE_XTAL_FAIL:
+		reason = "32.768 kHz crystal failure detection";
+		break;
+	case RESET_TYPE_ULP2:
+		reason = "ULP2 reset";
+		break;
 	default:
 		reason = "unknown reset";
 		break;
@@ -183,6 +195,7 @@ static const struct of_device_id at91_reset_of_match[] = {
 	{ .compatible = "atmel,at91sam9g45-rstc", .data = at91sam9g45_restart },
 	{ .compatible = "atmel,sama5d3-rstc", .data = sama5d3_restart },
 	{ .compatible = "atmel,samx7-rstc", .data = samx7_restart },
+	{ .compatible = "microchip,sam9x60-rstc", .data = samx7_restart },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, at91_reset_of_match);
-- 
2.17.1