diff options
Diffstat (limited to 'target/linux/at91/patches-5.10/223-ARM-at91-pm-do-not-panic-if-ram-controllers-are-not-.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/223-ARM-at91-pm-do-not-panic-if-ram-controllers-are-not-.patch | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/target/linux/at91/patches-5.10/223-ARM-at91-pm-do-not-panic-if-ram-controllers-are-not-.patch b/target/linux/at91/patches-5.10/223-ARM-at91-pm-do-not-panic-if-ram-controllers-are-not-.patch deleted file mode 100644 index 68bf447a03..0000000000 --- a/target/linux/at91/patches-5.10/223-ARM-at91-pm-do-not-panic-if-ram-controllers-are-not-.patch +++ /dev/null @@ -1,74 +0,0 @@ -From 76dbc56ad65350d78d12bd9b36b00c36fb27addf Mon Sep 17 00:00:00 2001 -From: Claudiu Beznea <claudiu.beznea@microchip.com> -Date: Mon, 23 Aug 2021 16:19:12 +0300 -Subject: [PATCH 223/247] ARM: at91: pm: do not panic if ram controllers are - not enabled - -In case PM is enabled but there is no RAM controller information -in DT the code will panic. Avoid such scenarios by not initializing -platform specific PM code in case RAM controller is not provided -via DT. - -Reported-by: Eugen Hristev <eugen.hristev@microchip.com> -Fixes: 827de1f123ba0 ("ARM: at91: remove at91_dt_initialize and machine init_early()") -Fixes: 892e1f4a3ae58 ("ARM: at91: pm: add sama7g5 ddr phy controller") -Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> -Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> -Link: https://lore.kernel.org/r/20210823131915.23857-2-claudiu.beznea@microchip.com ---- - arch/arm/mach-at91/pm.c | 22 ++++++++++++++++------ - 1 file changed, 16 insertions(+), 6 deletions(-) - ---- a/arch/arm/mach-at91/pm.c -+++ b/arch/arm/mach-at91/pm.c -@@ -589,7 +589,7 @@ static const struct of_device_id ramc_ph - { /* Sentinel. */ }, - }; - --static __init void at91_dt_ramc(bool phy_mandatory) -+static __init int at91_dt_ramc(bool phy_mandatory) - { - struct device_node *np; - const struct of_device_id *of_id; -@@ -625,12 +625,18 @@ static __init void at91_dt_ramc(bool phy - /* Lookup for DDR PHY node, if any. */ - for_each_matching_node_and_match(np, ramc_phy_ids, &of_id) { - soc_pm.data.ramc_phy = of_iomap(np, 0); -- if (!soc_pm.data.ramc_phy) -- panic(pr_fmt("unable to map ramc phy cpu registers\n")); -+ if (!soc_pm.data.ramc_phy) { -+ pr_err("unable to map ramc phy cpu registers\n"); -+ ret = -ENOMEM; -+ goto unmap_ramc; -+ } - } - -- if (phy_mandatory && !soc_pm.data.ramc_phy) -- panic(pr_fmt("DDR PHY is mandatory!\n")); -+ if (phy_mandatory && !soc_pm.data.ramc_phy) { -+ pr_err("DDR PHY is mandatory!\n"); -+ ret = -ENODEV; -+ goto unmap_ramc; -+ } - - if (!standby) { - pr_warn("ramc no standby function available\n"); -@@ -1163,13 +1169,17 @@ void __init sama7_pm_init(void) - [AT91_PM_BACKUP] = AT91_PM_IOMAP(SFRBU) | - AT91_PM_IOMAP(SHDWC), - }; -+ int ret; - - if (!IS_ENABLED(CONFIG_SOC_SAMA7)) - return; - - at91_pm_modes_validate(modes, ARRAY_SIZE(modes)); - -- at91_dt_ramc(true); -+ ret = at91_dt_ramc(true); -+ if (ret) -+ return; -+ - at91_pm_modes_init(iomaps, ARRAY_SIZE(iomaps)); - at91_pm_init(NULL); - |