linux-kernel - [PATCH v2 5/6] power: supply: bq27xxx: add separate flag for capacity inaccurate

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200919140418.3705-6-krzk@kernel.org>
Date:   Sat, 19 Sep 2020 16:04:17 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Pali Rohár <pali@...nel.org>,
        Dan Murphy <dmurphy@...com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 5/6] power: supply: bq27xxx: add separate flag for capacity inaccurate

bq27000, bq27010 and upcoming bq34z100 have a Capacity Inaccurate flag.
However except this similarity, bq34z100 is quite different than
bq27000/bq27010, so flag BQ27XXX_O_ZERO cannot be reused here.  Add
a new bit flag describing this capability.

No functional change for bq27000 and bq27010.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 drivers/power/supply/bq27xxx_battery.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index 88cdad0ecb08..cda03e1f9586 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -856,6 +856,7 @@ static struct bq27xxx_dm_reg bq27621_dm_regs[] = {
 #define BQ27XXX_O_RAM		BIT(4)
 #define BQ27Z561_O_BITS		BIT(5)
 #define BQ27XXX_O_SOC_SI	BIT(6) /* SoC is single register */
+#define BQ27XXX_O_HAS_CI	BIT(7) /* has Capacity Inaccurate flag */
 
 #define BQ27XXX_DATA(ref, key, opt) {		\
 	.opts = (opt),				\
@@ -873,8 +874,8 @@ static struct {
 	enum power_supply_property *props;
 	size_t props_size;
 } bq27xxx_chip_data[] = {
-	[BQ27000]   = BQ27XXX_DATA(bq27000,   0         , BQ27XXX_O_ZERO | BQ27XXX_O_SOC_SI),
-	[BQ27010]   = BQ27XXX_DATA(bq27010,   0         , BQ27XXX_O_ZERO | BQ27XXX_O_SOC_SI),
+	[BQ27000]   = BQ27XXX_DATA(bq27000,   0         , BQ27XXX_O_ZERO | BQ27XXX_O_SOC_SI | BQ27XXX_O_HAS_CI),
+	[BQ27010]   = BQ27XXX_DATA(bq27010,   0         , BQ27XXX_O_ZERO | BQ27XXX_O_SOC_SI | BQ27XXX_O_HAS_CI),
 	[BQ2750X]   = BQ27XXX_DATA(bq2750x,   0         , BQ27XXX_O_OTDC),
 	[BQ2751X]   = BQ27XXX_DATA(bq2751x,   0         , BQ27XXX_O_OTDC),
 	[BQ2752X]   = BQ27XXX_DATA(bq2752x,   0         , BQ27XXX_O_OTDC),
@@ -1659,7 +1660,7 @@ static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)
 void bq27xxx_battery_update(struct bq27xxx_device_info *di)
 {
 	struct bq27xxx_reg_cache cache = {0, };
-	bool has_ci_flag = di->opts & BQ27XXX_O_ZERO;
+	bool has_ci_flag = di->opts & BQ27XXX_O_HAS_CI;
 	bool has_singe_flag = di->opts & BQ27XXX_O_ZERO;
 
 	cache.flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag);
-- 
2.17.1