From: Hans de Goede <hansg@kernel.org>
To: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Andy Shevchenko" <andy@kernel.org>
Cc: Hans de Goede <hansg@kernel.org>, platform-driver-x86@vger.kernel.org
Subject: [PATCH 2/2] platform/x86: x86-android-tablets: Add ovc-capacity-table info
Date: Sun, 8 Jun 2025 22:41:54 +0200 [thread overview]
Message-ID: <20250608204154.37605-2-hansg@kernel.org> (raw)
In-Reply-To: <20250608204154.37605-1-hansg@kernel.org>
Add ovc-capacity-table info to the generic battery nodes.
The values come from the ug3105 driver which currently hardcodes these
values. The ug3105 driver will be modified to stop hardcoding this and
instead get the values from device-properties.
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
.../x86/x86-android-tablets/shared-psy-info.c | 60 +++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/drivers/platform/x86/x86-android-tablets/shared-psy-info.c b/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
index 55da57477153..df6e95bd132f 100644
--- a/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
+++ b/drivers/platform/x86/x86-android-tablets/shared-psy-info.c
@@ -39,6 +39,58 @@ const struct software_node fg_bq25890_supply_node = {
.properties = fg_bq25890_supply_props,
};
+static const u32 generic_lipo_battery_ovc_cap_celcius[] = { 25 };
+
+static const u32 generic_lipo_4v2_battery_ovc_cap_table0[] = {
+ 4200000, 100,
+ 4150000, 95,
+ 4110000, 90,
+ 4075000, 85,
+ 4020000, 80,
+ 3982500, 75,
+ 3945000, 70,
+ 3907500, 65,
+ 3870000, 60,
+ 3853333, 55,
+ 3836667, 50,
+ 3820000, 45,
+ 3803333, 40,
+ 3786667, 35,
+ 3770000, 30,
+ 3750000, 25,
+ 3730000, 20,
+ 3710000, 15,
+ 3690000, 10,
+ 3610000, 5,
+ 3350000, 0,
+};
+
+static const u32 generic_lipo_hv_4v35_battery_ovc_cap_table0[] = {
+ 4300000, 100,
+ 4250000, 96,
+ 4200000, 91,
+ 4150000, 86,
+ 4110000, 82,
+ 4075000, 77,
+ 4020000, 73,
+ 3982500, 68,
+ 3945000, 64,
+ 3907500, 59,
+ 3870000, 55,
+ 3853333, 50,
+ 3836667, 45,
+ 3820000, 41,
+ 3803333, 36,
+ 3786667, 32,
+ 3770000, 27,
+ 3750000, 23,
+ 3730000, 18,
+ 3710000, 14,
+ 3690000, 9,
+ 3610000, 5,
+ 3350000, 0,
+};
+
/* Standard LiPo (max 4.2V) settings used by most devs with a LiPo battery */
static const struct property_entry generic_lipo_4v2_battery_props[] = {
PROPERTY_ENTRY_STRING("compatible", "simple-battery"),
@@ -48,6 +100,10 @@ static const struct property_entry generic_lipo_4v2_battery_props[] = {
PROPERTY_ENTRY_U32("constant-charge-current-max-microamp", 2048000),
PROPERTY_ENTRY_U32("constant-charge-voltage-max-microvolt", 4208000),
PROPERTY_ENTRY_U32("factory-internal-resistance-micro-ohms", 150000),
+ PROPERTY_ENTRY_U32_ARRAY("ocv-capacity-celsius",
+ generic_lipo_battery_ovc_cap_celcius),
+ PROPERTY_ENTRY_U32_ARRAY("ocv-capacity-table-0",
+ generic_lipo_4v2_battery_ovc_cap_table0),
{ }
};
@@ -64,6 +120,10 @@ static const struct property_entry generic_lipo_hv_4v35_battery_props[] = {
PROPERTY_ENTRY_U32("constant-charge-current-max-microamp", 1856000),
PROPERTY_ENTRY_U32("constant-charge-voltage-max-microvolt", 4352000),
PROPERTY_ENTRY_U32("factory-internal-resistance-micro-ohms", 150000),
+ PROPERTY_ENTRY_U32_ARRAY("ocv-capacity-celsius",
+ generic_lipo_battery_ovc_cap_celcius),
+ PROPERTY_ENTRY_U32_ARRAY("ocv-capacity-table-0",
+ generic_lipo_hv_4v35_battery_ovc_cap_table0),
{ }
};
--
2.49.0
next prev parent reply other threads:[~2025-06-08 20:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-08 20:41 [PATCH 1/2] platform/x86: x86-android-tablets: Add generic_lipo_4v2_battery info Hans de Goede
2025-06-08 20:41 ` Hans de Goede [this message]
2025-06-09 9:34 ` [PATCH 2/2] platform/x86: x86-android-tablets: Add ovc-capacity-table info Andy Shevchenko
2025-06-09 10:40 ` Hans de Goede
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