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Mon, 24 Nov 2025 03:12:53 -0800 (PST) Received: from hu-kotarake-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-bd7604de68bsm13133780a12.21.2025.11.24.03.12.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Nov 2025 03:12:52 -0800 (PST) From: Rakesh Kota Date: Mon, 24 Nov 2025 16:42:41 +0530 Subject: [PATCH 2/2] power: supply: core: Add SiLION battery technology Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251124-add_silion_battery-v1-2-3c86b70d2543@oss.qualcomm.com> References: <20251124-add_silion_battery-v1-0-3c86b70d2543@oss.qualcomm.com> In-Reply-To: <20251124-add_silion_battery-v1-0-3c86b70d2543@oss.qualcomm.com> To: Sebastian Reichel , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kamal.wadhwa@oss.qualcomm.com, fenglin.wu@oss.qualcomm.com, Rakesh Kota X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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Without this change, such batteries would report as unknown technology. Introduce POWER_SUPPLY_TECHNOLOGY_SiLION and update technology mappings across core, sysfs, and test interfaces. Signed-off-by: Rakesh Kota --- Documentation/ABI/testing/sysfs-class-power | 2 +- drivers/power/supply/power_supply_core.c | 2 ++ drivers/power/supply/power_supply_sysfs.c | 1 + drivers/power/supply/test_power.c | 3 ++- include/linux/power_supply.h | 1 + 5 files changed, 7 insertions(+), 2 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/AB= I/testing/sysfs-class-power index 4b21d5d2325136be65126d4d1d6e64608280fe44..1f42e6f138ea8ae0fe8c232c38d= 0ff6fb20180e7 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -525,7 +525,7 @@ Description: =20 Valid values: "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe", - "NiCd", "LiMn" + "NiCd", "LiMn", "Si-Li-ion" =20 =20 What: /sys/class/power_supply//voltage_avg, diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/suppl= y/power_supply_core.c index 9a28381e2607d650fa9b719b683af375bb118fad..385ab8aa7e69f3f804e7ac0ee37= 82446f18e2c3f 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -677,6 +677,8 @@ int power_supply_get_battery_info(struct power_supply *= psy, info->technology =3D POWER_SUPPLY_TECHNOLOGY_LiFe; else if (!strcmp("lithium-ion-manganese-oxide", value)) info->technology =3D POWER_SUPPLY_TECHNOLOGY_LiMn; + else if (!strcmp("lithium-ion-silicon-anode", value)) + info->technology =3D POWER_SUPPLY_TECHNOLOGY_SiLION; else dev_warn(&psy->dev, "%s unknown battery type\n", value); } diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supp= ly/power_supply_sysfs.c index 198405f7126f96a57a549cd1ecb9b71089b9c3d0..f2a5ec519b2ef60fb5ede101ca4= 61d899218e186 100644 --- a/drivers/power/supply/power_supply_sysfs.c +++ b/drivers/power/supply/power_supply_sysfs.c @@ -122,6 +122,7 @@ static const char * const POWER_SUPPLY_TECHNOLOGY_TEXT[= ] =3D { [POWER_SUPPLY_TECHNOLOGY_LiFe] =3D "LiFe", [POWER_SUPPLY_TECHNOLOGY_NiCd] =3D "NiCd", [POWER_SUPPLY_TECHNOLOGY_LiMn] =3D "LiMn", + [POWER_SUPPLY_TECHNOLOGY_SiLION] =3D "Si-Li-ion", }; =20 static const char * const POWER_SUPPLY_CAPACITY_LEVEL_TEXT[] =3D { diff --git a/drivers/power/supply/test_power.c b/drivers/power/supply/test_= power.c index 2c0e9ad820c0db23165758303a16bddac1a1634b..64bd4a1147ca06566a909513a80= 760ad707a8605 100644 --- a/drivers/power/supply/test_power.c +++ b/drivers/power/supply/test_power.c @@ -437,6 +437,7 @@ static struct battery_property_map map_technology[] =3D= { { POWER_SUPPLY_TECHNOLOGY_LiFe, "LiFe" }, { POWER_SUPPLY_TECHNOLOGY_NiCd, "NiCd" }, { POWER_SUPPLY_TECHNOLOGY_LiMn, "LiMn" }, + { POWER_SUPPLY_TECHNOLOGY_SiLION, "SiLION" }, { -1, NULL }, }; =20 @@ -733,7 +734,7 @@ MODULE_PARM_DESC(battery_present, =20 module_param(battery_technology, battery_technology, 0644); MODULE_PARM_DESC(battery_technology, - "battery technology "); + "battery technology "); =20 module_param(battery_health, battery_health, 0644); MODULE_PARM_DESC(battery_health, diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 360ffdf272dab86241f1aac4650d1a91a088a84b..04996037219d5a22d2b2a7f136e= 5d3565a4507ca 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -83,6 +83,7 @@ enum { POWER_SUPPLY_TECHNOLOGY_LiFe, POWER_SUPPLY_TECHNOLOGY_NiCd, POWER_SUPPLY_TECHNOLOGY_LiMn, + POWER_SUPPLY_TECHNOLOGY_SiLION, }; =20 enum { --=20 2.34.1