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From c8f2a8aaae41fa0a40ad88855ae82696098230d7 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Thu, 15 Apr 2021 13:49:48 +0300
Subject: [PATCH 198/247] ARM: at91: pm: move the setup of soc_pm.bu->suspended
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>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210415105010.569620-3-claudiu.beznea@microchip.com
---
arch/arm/mach-at91/pm.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
--- 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(vo
*/
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
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
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 */
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