From: Claudiu Beznea <claudiu.beznea@microchip.com>
To: <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
<ludovic.desroches@microchip.com>, <robh+dt@kernel.org>,
<linux@armlinux.org.uk>
Cc: <linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: [PATCH v2 02/24] ARM: at91: pm: move the setup of soc_pm.bu->suspended
Date: Fri, 9 Apr 2021 14:13:23 +0300 [thread overview]
Message-ID: <20210409111345.294472-3-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <20210409111345.294472-1-claudiu.beznea@microchip.com>
Move the setup of soc_pm.bu->suspended in platform_suspend::begin
function so that the PMC code in charge with clocks suspend/resume
to differentiate b/w standard PM mode and backup mode.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
arch/arm/mach-at91/pm.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index e13ceef7ac9a..3742a1fb76db 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -214,6 +214,8 @@ static int at91_sam9x60_config_pmc_ws(void __iomem *pmc, u32 mode, u32 polarity)
*/
static int at91_pm_begin(suspend_state_t state)
{
+ int ret;
+
switch (state) {
case PM_SUSPEND_MEM:
soc_pm.data.mode = soc_pm.data.suspend_mode;
@@ -227,7 +229,16 @@ static int at91_pm_begin(suspend_state_t state)
soc_pm.data.mode = -1;
}
- return at91_pm_config_ws(soc_pm.data.mode, true);
+ ret = at91_pm_config_ws(soc_pm.data.mode, true);
+ if (ret)
+ return ret;
+
+ if (soc_pm.data.mode == AT91_PM_BACKUP)
+ soc_pm.bu->suspended = 1;
+ else if (soc_pm.bu)
+ soc_pm.bu->suspended = 0;
+
+ return 0;
}
/*
@@ -296,8 +307,6 @@ static int at91_suspend_finish(unsigned long val)
static void at91_pm_suspend(suspend_state_t state)
{
if (soc_pm.data.mode == AT91_PM_BACKUP) {
- soc_pm.bu->suspended = 1;
-
cpu_suspend(0, at91_suspend_finish);
/* The SRAM is lost between suspend cycles */
--
2.25.1
next prev parent reply other threads:[~2021-04-09 11:14 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 11:13 [PATCH v2 00/24] ARM: at91: pm: add support for sama7g5 Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 01/24] ARM: at91: pm: move pm_bu to soc_pm data structure Claudiu Beznea
2021-04-09 11:13 ` Claudiu Beznea [this message]
2021-04-09 11:13 ` [PATCH v2 03/24] ARM: at91: pm: document at91_soc_pm structure Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 04/24] ARM: at91: pm: check for different controllers in at91_pm_modes_init() Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 05/24] ARM: at91: pm: do not initialize pdev Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 06/24] ARM: at91: pm: use r7 instead of tmp1 Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 07/24] ARM: at91: pm: avoid push and pop on stack while memory is in self-refersh Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 08/24] ARM: at91: pm: s/CONFIG_SOC_SAM9X60/CONFIG_HAVE_AT91_SAM9X60_PLL/g Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 09/24] ARM: at91: pm: add support for waiting MCK1..4 Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 10/24] ARM: at91: sfrbu: add sfrbu registers definitions for sama7g5 Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 11/24] ARM: at91: ddr: add registers definitions for sama7g5's ddr Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 12/24] ARM: at91: pm: add self-refresh support for sama7g5 Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 13/24] ARM: at91: pm: add support for MCK1..4 save/restore for ulp modes Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 14/24] ARM: at91: pm: add support for 2.5V LDO regulator control Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 15/24] ARM: at91: pm: wait for ddr power mode off Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 16/24] dt-bindings: atmel-sysreg: add bindings for sama7g5 Claudiu Beznea
2021-04-12 16:02 ` Rob Herring
2021-04-15 7:31 ` Claudiu.Beznea
2021-04-09 11:13 ` [PATCH v2 17/24] ARM: at91: pm: add sama7g5 ddr controller Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 18/24] ARM: at91: pm: add sama7g5 ddr phy controller Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 19/24] ARM: at91: pm: save ddr phy calibration data to securam Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 20/24] ARM: at91: pm: add backup mode support for SAMA7G5 Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 21/24] ARM: at91: pm: add sama7g5's pmc Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 22/24] ARM: at91: sama7: introduce sama7 SoC family Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 23/24] ARM: at91: pm: add pm support for SAMA7G5 Claudiu Beznea
2021-04-09 11:13 ` [PATCH v2 24/24] ARM: at91: pm: add sama7g5 shdwc Claudiu Beznea
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