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Message-ID: <20220407071708.3848812-6-claudiu.beznea@microchip.com>
Date: Thu, 7 Apr 2022 10:17:03 +0300
From: Claudiu Beznea <claudiu.beznea@...rochip.com>
To: <robh+dt@...nel.org>, <nicolas.ferre@...rochip.com>,
<alexandre.belloni@...tlin.com>, <p.zabel@...gutronix.de>,
<linux@...linux.org.uk>, <sre@...nel.org>,
<linux-pm@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
CC: <linux-arm-kernel@...ts.infradead.org>,
Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH v2 05/10] power: reset: at91-reset: document structures and enums
Document structures and enums.
Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
drivers/power/reset/at91-reset.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
index 64def79d557a..e62798750b6b 100644
--- a/drivers/power/reset/at91-reset.c
+++ b/drivers/power/reset/at91-reset.c
@@ -39,6 +39,17 @@
#define AT91_RSTC_URSTIEN BIT(4) /* User Reset Interrupt Enable */
#define AT91_RSTC_ERSTL GENMASK(11, 8) /* External Reset Length */
+/**
+ * enum reset_type - reset types
+ * @RESET_TYPE_GENERAL: first power-up reset
+ * @RESET_TYPE_WAKEUP: return from backup mode
+ * @RESET_TYPE_WATCHDOG: watchdog fault
+ * @RESET_TYPE_SOFTWARE: processor reset required by software
+ * @RESET_TYPE_USER: NRST pin detected low
+ * @RESET_TYPE_CPU_FAIL: CPU clock failure detection
+ * @RESET_TYPE_XTAL_FAIL: 32KHz crystal failure dectection fault
+ * @RESET_TYPE_ULP2: ULP2 reset
+ */
enum reset_type {
RESET_TYPE_GENERAL = 0,
RESET_TYPE_WAKEUP = 1,
@@ -50,6 +61,15 @@ enum reset_type {
RESET_TYPE_ULP2 = 8,
};
+/**
+ * struct at91_reset - AT91 reset specific data structure
+ * @rstc_base: base address for system reset
+ * @ramc_base: array with base addresses of RAM controllers
+ * @sclk: slow clock
+ * @nb: reset notifier block
+ * @args: SoC specific system reset arguments
+ * @ramc_lpr: SDRAM Controller Low Power Register
+ */
struct at91_reset {
void __iomem *rstc_base;
void __iomem *ramc_base[2];
--
2.32.0
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