diff mbox series

[v4,5/9] power: reset: at91-reset: document structures and enums

Message ID 20220608083942.1584087-6-claudiu.beznea@microchip.com
State New
Headers show
Series power: reset: at91-reset: add support for sama7g5 | expand

Commit Message

Claudiu Beznea June 8, 2022, 8:39 a.m. UTC
Document structures and enums.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/power/reset/at91-reset.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
diff mbox series

Patch

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];