diff options
Diffstat (limited to 'target/linux/at91/patches-5.10/197-ARM-at91-pm-move-pm_bu-to-soc_pm-data-structure.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/197-ARM-at91-pm-move-pm_bu-to-soc_pm-data-structure.patch | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.10/197-ARM-at91-pm-move-pm_bu-to-soc_pm-data-structure.patch b/target/linux/at91/patches-5.10/197-ARM-at91-pm-move-pm_bu-to-soc_pm-data-structure.patch new file mode 100644 index 0000000000..fd5a8cd93e --- /dev/null +++ b/target/linux/at91/patches-5.10/197-ARM-at91-pm-move-pm_bu-to-soc_pm-data-structure.patch @@ -0,0 +1,92 @@ +From e41d00bdaa31b36fd314e927104082615aa4643a Mon Sep 17 00:00:00 2001 +From: Claudiu Beznea <claudiu.beznea@microchip.com> +Date: Thu, 15 Apr 2021 13:49:47 +0300 +Subject: [PATCH 197/247] ARM: at91: pm: move pm_bu to soc_pm data structure + +Move pm_bu to soc_pm data structure. + +Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> +Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> +Link: https://lore.kernel.org/r/20210415105010.569620-2-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 2dee383f9050..3fa223c21618 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); + +@@ -672,16 +680,16 @@ 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; + +-- +2.32.0 + |