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From: <Claudiu.Beznea@microchip.com>
To: <robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<Nicolas.Ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
	<Ludovic.Desroches@microchip.com>, <linux@armlinux.org.uk>,
	<mturquette@baylibre.com>, <sboyd@kernel.org>
Cc: <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <linux-clk@vger.kernel.org>,
	<Claudiu.Beznea@microchip.com>
Subject: [PATCH 3/8] ARM: at91: pm: initial PM support for SAM9X60
Date: Thu, 14 Feb 2019 15:54:41 +0000	[thread overview]
Message-ID: <1550159642-26878-4-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1550159642-26878-1-git-send-email-claudiu.beznea@microchip.com>

From: Claudiu Beznea <claudiu.beznea@microchip.com>

Add initial PM support for SAM9X60. This include idle, WFI and ULP0.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 arch/arm/mach-at91/at91sam9.c | 18 ++++++++++++++++++
 arch/arm/mach-at91/generic.h  |  2 ++
 arch/arm/mach-at91/pm.c       | 14 ++++++++++++++
 3 files changed, 34 insertions(+)

diff --git a/arch/arm/mach-at91/at91sam9.c b/arch/arm/mach-at91/at91sam9.c
index 3dbdef4d3cbf..c12563b09656 100644
--- a/arch/arm/mach-at91/at91sam9.c
+++ b/arch/arm/mach-at91/at91sam9.c
@@ -32,3 +32,21 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM9")
 	.init_machine	= at91sam9_init,
 	.dt_compat	= at91_dt_board_compat,
 MACHINE_END
+
+static void __init sam9x60_init(void)
+{
+	of_platform_default_populate(NULL, NULL, NULL);
+
+	sam9x60_pm_init();
+}
+
+static const char *const sam9x60_dt_board_compat[] __initconst = {
+	"microchip,sam9x60",
+	NULL
+};
+
+DT_MACHINE_START(sam9x60_dt, "Microchip SAM9X60")
+	/* Maintainer: Microchip */
+	.init_machine	= sam9x60_init,
+	.dt_compat	= sam9x60_dt_board_compat,
+MACHINE_END
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index e2bd17237964..72b45accfa0f 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -14,11 +14,13 @@
 #ifdef CONFIG_PM
 extern void __init at91rm9200_pm_init(void);
 extern void __init at91sam9_pm_init(void);
+extern void __init sam9x60_pm_init(void);
 extern void __init sama5_pm_init(void);
 extern void __init sama5d2_pm_init(void);
 #else
 static inline void __init at91rm9200_pm_init(void) { }
 static inline void __init at91sam9_pm_init(void) { }
+static inline void __init sam9x60_pm_init(void) { }
 static inline void __init sama5_pm_init(void) { }
 static inline void __init sama5d2_pm_init(void) { }
 #endif
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index ce2ff86968f6..e42db02eafe4 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -518,6 +518,11 @@ static void at91rm9200_idle(void)
 	writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR);
 }
 
+static void at91sam9x60_idle(void)
+{
+	cpu_do_idle();
+}
+
 static void at91sam9_idle(void)
 {
 	writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR);
@@ -754,6 +759,15 @@ void __init at91rm9200_pm_init(void)
 	at91_pm_init(at91rm9200_idle);
 }
 
+void __init sam9x60_pm_init(void)
+{
+	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
+		return;
+
+	at91_dt_ramc();
+	at91_pm_init(at91sam9x60_idle);
+}
+
 void __init at91sam9_pm_init(void)
 {
 	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
-- 
2.7.4


  parent reply	other threads:[~2019-02-14 15:55 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-14 15:54 [PATCH 0/8] add power management support for SAM9X60 Claudiu.Beznea
2019-02-14 15:54 ` [PATCH 1/8] ARM: at91: pm: introduce at91_soc_pm structure Claudiu.Beznea
2019-02-14 15:54 ` [PATCH 2/8] dt-bindings: arm: atmel: add binding for SAM9X60 SoC Claudiu.Beznea
2019-02-14 15:54 ` Claudiu.Beznea [this message]
2019-02-14 15:54 ` [PATCH 4/8] ARM: at91: pm: keep at91_pm_backup_init() only for SAMA5D2 SoCs Claudiu.Beznea
2019-02-14 15:54 ` [PATCH 5/8] ARM: at91: pm: add support for per SoC wakeup source configuration Claudiu.Beznea
2019-02-14 15:54 ` [PATCH 6/8] ARM: at91: pm: add ULP1 support for SAM9X60 Claudiu.Beznea
2019-02-16  0:23   ` Stephen Boyd
2019-02-14 15:55 ` [PATCH 7/8] ARM: at91: pm: disable RC oscillator in ULP0 Claudiu.Beznea
2019-02-14 15:55 ` [PATCH 8/8] ARM: at91: pm: do not disable/enable PLLA for ULP modes Claudiu.Beznea
2019-02-25 10:46 ` [PATCH 0/8] add power management support for SAM9X60 Alexandre Belloni

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