linux-kernel - [PATCH v5 8/9] power: reset: at91-reset: add support for SAMA7G5

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Date:   Fri, 10 Jun 2022 12:24:13 +0300
From:   Claudiu Beznea <claudiu.beznea@...rochip.com>
To:     <nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <p.zabel@...gutronix.de>, <sre@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>
CC:     <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH v5 8/9] power: reset: at91-reset: add support for SAMA7G5

Add support for SAMA7G5 including reset_controller_dev support for 3 lines
(which are USB PHYs).

Signed-off-by: Claudiu Beznea <claudiu.beznea@...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 bc9f1d9e7867..741e44a017c3 100644
--- a/drivers/power/reset/at91-reset.c
+++ b/drivers/power/reset/at91-reset.c
@@ -22,6 +22,8 @@
 #include <soc/at91/at91sam9_ddrsdr.h>
 #include <soc/at91/at91sam9_sdramc.h>
 
+#include <dt-bindings/reset/sama7g5-reset.h>
+
 #define AT91_RSTC_CR	0x00		/* Reset Controller Control Register */
 #define AT91_RSTC_PROCRST	BIT(0)		/* Processor Reset */
 #define AT91_RSTC_PERRST	BIT(2)		/* Peripheral Reset */
@@ -206,6 +208,13 @@ static const struct at91_reset_data samx7 = {
 	.reset_args = AT91_RSTC_KEY | AT91_RSTC_PROCRST,
 };
 
+static const struct at91_reset_data sama7g5 = {
+	.reset_args = AT91_RSTC_KEY | AT91_RSTC_PROCRST,
+	.n_device_reset = 3,
+	.device_reset_min_id = SAMA7G5_RESET_USB_PHY1,
+	.device_reset_max_id = SAMA7G5_RESET_USB_PHY3,
+};
+
 static const struct of_device_id at91_reset_of_match[] = {
 	{
 		.compatible = "atmel,at91sam9260-rstc",
@@ -227,6 +236,10 @@ static const struct of_device_id at91_reset_of_match[] = {
 		.compatible = "microchip,sam9x60-rstc",
 		.data = &samx7,
 	},
+	{
+		.compatible = "microchip,sama7g5-rstc",
+		.data = &sama7g5,
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, at91_reset_of_match);
-- 
2.34.1