diff options
Diffstat (limited to '0003-power-supply-core-Add-support-for-supplied-from-devi.patch')
| -rw-r--r-- | 0003-power-supply-core-Add-support-for-supplied-from-devi.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/0003-power-supply-core-Add-support-for-supplied-from-devi.patch b/0003-power-supply-core-Add-support-for-supplied-from-devi.patch new file mode 100644 index 000000000..ab646e2e5 --- /dev/null +++ b/0003-power-supply-core-Add-support-for-supplied-from-devi.patch @@ -0,0 +1,57 @@ +From 69dd0606a0d8680fe0a5e9b959f6662e582e1674 Mon Sep 17 00:00:00 2001 +From: Hans de Goede <hdegoede@redhat.com> +Date: Tue, 2 May 2017 13:43:34 +0200 +Subject: [PATCH 03/16] power: supply: core: Add support for supplied-from + device-property + +On devicetree using platforms the devicetree can provide info on which +power-supplies supply another power-supply through phandles. + +This commit adds support for providing this info on non devicetree +platforms through the platform code setting a supplied-from +device-property on the power-supplies parent device. + +Signed-off-by: Hans de Goede <hdegoede@redhat.com> +--- + drivers/power/supply/power_supply_core.c | 24 +++++++++++++++++++++++- + 1 file changed, 23 insertions(+), 1 deletion(-) + +diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c +index 7ec7c7c202bd..0c09144193a6 100644 +--- a/drivers/power/supply/power_supply_core.c ++++ b/drivers/power/supply/power_supply_core.c +@@ -274,8 +274,30 @@ static int power_supply_check_supplies(struct power_supply *psy) + return power_supply_populate_supplied_from(psy); + } + #else +-static inline int power_supply_check_supplies(struct power_supply *psy) ++static int power_supply_check_supplies(struct power_supply *psy) + { ++ int nval, ret; ++ ++ if (!psy->dev.parent) ++ return 0; ++ ++ nval = device_property_read_string_array(psy->dev.parent, ++ "supplied-from", NULL, 0); ++ if (nval <= 0) ++ return 0; ++ ++ psy->supplied_from = devm_kmalloc_array(&psy->dev, nval, ++ sizeof(char *), GFP_KERNEL); ++ if (!psy->supplied_from) ++ return -ENOMEM; ++ ++ ret = device_property_read_string_array(psy->dev.parent, ++ "supplied-from", (const char **)psy->supplied_from, nval); ++ if (ret < 0) ++ return ret; ++ ++ psy->num_supplies = nval; ++ + return 0; + } + #endif +-- +2.13.0 + |