1 From aba3984dc7a405d20b83bff603d23719d0e26bc7 Mon Sep 17 00:00:00 2001
2 From: Claudiu Beznea <claudiu.beznea@microchip.com>
3 Date: Thu, 15 Apr 2021 13:50:09 +0300
4 Subject: [PATCH 218/247] ARM: at91: pm: add pm support for SAMA7G5
6 Add support for SAMA7G5 power management modes: standby, ulp0, ulp1, backup.
8 Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
9 Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
10 Link: https://lore.kernel.org/r/20210415105010.569620-24-claudiu.beznea@microchip.com
12 arch/arm/mach-at91/generic.h | 2 ++
13 arch/arm/mach-at91/pm.c | 37 ++++++++++++++++++++++++++++++++++++
14 arch/arm/mach-at91/sama7.c | 1 +
15 3 files changed, 40 insertions(+)
17 --- a/arch/arm/mach-at91/generic.h
18 +++ b/arch/arm/mach-at91/generic.h
19 @@ -14,12 +14,14 @@ extern void __init at91sam9_pm_init(void
20 extern void __init sam9x60_pm_init(void);
21 extern void __init sama5_pm_init(void);
22 extern void __init sama5d2_pm_init(void);
23 +extern void __init sama7_pm_init(void);
25 static inline void __init at91rm9200_pm_init(void) { }
26 static inline void __init at91sam9_pm_init(void) { }
27 static inline void __init sam9x60_pm_init(void) { }
28 static inline void __init sama5_pm_init(void) { }
29 static inline void __init sama5d2_pm_init(void) { }
30 +static inline void __init sama7_pm_init(void) { }
33 #endif /* _AT91_GENERIC_H */
34 --- a/arch/arm/mach-at91/pm.c
35 +++ b/arch/arm/mach-at91/pm.c
36 @@ -152,6 +152,17 @@ static const struct of_device_id sam9x60
40 +static const struct of_device_id sama7g5_ws_ids[] = {
41 + { .compatible = "atmel,at91sam9x5-rtc", .data = &ws_info[1] },
42 + { .compatible = "microchip,sama7g5-ohci", .data = &ws_info[2] },
43 + { .compatible = "usb-ohci", .data = &ws_info[2] },
44 + { .compatible = "atmel,at91sam9g45-ehci", .data = &ws_info[2] },
45 + { .compatible = "usb-ehci", .data = &ws_info[2] },
46 + { .compatible = "microchip,sama7g5-sdhci", .data = &ws_info[3] },
47 + { .compatible = "atmel,at91sam9260-rtt", .data = &ws_info[4] },
51 static int at91_pm_config_ws(unsigned int pm_mode, bool set)
53 const struct wakeup_source_info *wsi;
54 @@ -1139,6 +1150,32 @@ void __init sama5d2_pm_init(void)
55 soc_pm.config_pmc_ws = at91_sama5d2_config_pmc_ws;
58 +void __init sama7_pm_init(void)
60 + static const int modes[] __initconst = {
61 + AT91_PM_STANDBY, AT91_PM_ULP0, AT91_PM_ULP1, AT91_PM_BACKUP,
63 + static const u32 iomaps[] __initconst = {
64 + [AT91_PM_ULP0] = AT91_PM_IOMAP(SFRBU),
65 + [AT91_PM_ULP1] = AT91_PM_IOMAP(SFRBU) |
66 + AT91_PM_IOMAP(SHDWC),
67 + [AT91_PM_BACKUP] = AT91_PM_IOMAP(SFRBU) |
68 + AT91_PM_IOMAP(SHDWC),
71 + if (!IS_ENABLED(CONFIG_SOC_SAMA7))
74 + at91_pm_modes_validate(modes, ARRAY_SIZE(modes));
77 + at91_pm_modes_init(iomaps, ARRAY_SIZE(iomaps));
80 + soc_pm.ws_ids = sama7g5_ws_ids;
81 + soc_pm.config_pmc_ws = at91_sam9x60_config_pmc_ws;
84 static int __init at91_pm_modes_select(char *str)
87 --- a/arch/arm/mach-at91/sama7.c
88 +++ b/arch/arm/mach-at91/sama7.c
90 static void __init sama7_dt_device_init(void)
92 of_platform_default_populate(NULL, NULL, NULL);
96 static const char *const sama7_dt_board_compat[] __initconst = {