[PATCH 01/24] ARM: at91: pm: move pm_bu to soc_pm data structure

Claudiu Beznea
2021-03-31T11:00:10Z

Move pm_bu to soc_pm data structure.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
arch/arm/mach-at91/pm.c | 34 +++++++++++++++++++++-------------
1 file changed, 21 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 90dcdfe3b3d0..e13ceef7ac9a 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -27,10 +27,25 @@
#include "generic.h"
#include "pm.h"

+/**
+ * struct at91_pm_bu - AT91 power management backup unit data structure
+ * @suspended: true if suspended to backup mode
+ * @reserved: reserved
+ * @canary: canary data for memory checking after exit from backup mode
+ * @resume: resume API
+ */
+struct at91_pm_bu {
+ int suspended;
+ unsigned long reserved;
+ phys_addr_t canary;
+ phys_addr_t resume;
+};
+
struct at91_soc_pm {
int (*config_shdwc_ws)(void __iomem *shdwc, u32 *mode, u32 *polarity);
int (*config_pmc_ws)(void __iomem *pmc, u32 mode, u32 polarity);
const struct of_device_id *ws_ids;
+ struct at91_pm_bu *bu;
struct at91_pm_data data;
};

@@ -71,13 +86,6 @@ static int at91_pm_valid_state(suspend_state_t state)

static int canary = 0xA5A5A5A5;

-static struct at91_pm_bu {
- int suspended;
- unsigned long reserved;
- phys_addr_t canary;
- phys_addr_t resume;
-} *pm_bu;
-
struct wakeup_source_info {
unsigned int pmc_fsmr_bit;
unsigned int shdwc_mr_bit;
@@ -288,7 +296,7 @@ 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) {
- pm_bu->suspended = 1;
+ soc_pm.bu->suspended = 1;

cpu_suspend(0, at91_suspend_finish);

@@ -657,16 +665,16 @@ static int __init at91_pm_backup_init(void)
goto securam_fail;
}

- pm_bu = (void *)gen_pool_alloc(sram_pool, sizeof(struct at91_pm_bu));
- if (!pm_bu) {
+ soc_pm.bu = (void *)gen_pool_alloc(sram_pool, sizeof(struct at91_pm_bu));
+ if (!soc_pm.bu) {
pr_warn("%s: unable to alloc securam!\n", __func__);
ret = -ENOMEM;
goto securam_fail;
}

- pm_bu->suspended = 0;
- pm_bu->canary = __pa_symbol(&canary);
- pm_bu->resume = __pa_symbol(cpu_resume);
+ soc_pm.bu->suspended = 0;
+ soc_pm.bu->canary = __pa_symbol(&canary);
+ soc_pm.bu->resume = __pa_symbol(cpu_resume);

return 0;

--
2.25.1