From 0e61637f0fb5578198c8d95c3fb9b893390bc1e7 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 26 Jan 2023 16:38:22 +0100 Subject: i2c: cht-wc: Add charger-chip info for the Lenovo Yoga Tab 3 YT3-X90F On x86 devices with a CHT Whiskey Cove PMIC the driver for the I2C bus coming from the PMIC is responsible for instantiating the i2c_client for the charger chip. Add the necessary i2c_board_info for this. Signed-off-by: Hans de Goede Acked-by: Wolfram Sang Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230126153823.22146-3-hdegoede@redhat.com --- drivers/i2c/busses/i2c-cht-wc.c | 46 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) (limited to 'drivers/i2c') diff --git a/drivers/i2c/busses/i2c-cht-wc.c b/drivers/i2c/busses/i2c-cht-wc.c index 190abdc46dd3..2b2c3d090089 100644 --- a/drivers/i2c/busses/i2c-cht-wc.c +++ b/drivers/i2c/busses/i2c-cht-wc.c @@ -380,6 +380,49 @@ static struct i2c_board_info lenovo_yogabook1_board_info = { .platform_data = &bq2589x_pdata, }; +/********** Lenovo Yogabook YT3-X90F charger settings **********/ +static const char * const lenovo_yt3_bq25892_1_suppliers[] = { "cht_wcove_pwrsrc" }; + +/* + * bq25892 charger settings for the round li-ion cells in the hinge, + * this is the main / biggest battery. + */ +static const struct property_entry lenovo_yt3_bq25892_1_props[] = { + PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lenovo_yt3_bq25892_1_suppliers), + PROPERTY_ENTRY_STRING("linux,secondary-charger-name", "bq25890-charger-0"), + PROPERTY_ENTRY_U32("linux,iinlim-percentage", 60), + PROPERTY_ENTRY_U32("linux,pump-express-vbus-max", 12000000), + PROPERTY_ENTRY_BOOL("linux,skip-reset"), + /* + * The firmware sets everything to the defaults, leading to a low(ish) + * charge-current and battery-voltage of 2048mA resp 4.2V. Use the + * Android values instead of "linux,read-back-settings" to fix this. + */ + PROPERTY_ENTRY_U32("ti,charge-current", 3072000), + PROPERTY_ENTRY_U32("ti,battery-regulation-voltage", 4352000), + PROPERTY_ENTRY_U32("ti,termination-current", 128000), + PROPERTY_ENTRY_U32("ti,precharge-current", 128000), + PROPERTY_ENTRY_U32("ti,minimum-sys-voltage", 3700000), + PROPERTY_ENTRY_BOOL("ti,use-ilim-pin"), + /* Set 5V boost current-limit to 1.2A (MAX/POR values are 2.45A/1.4A) */ + PROPERTY_ENTRY_U32("ti,boost-voltage", 4998000), + PROPERTY_ENTRY_U32("ti,boost-max-current", 1200000), + { } +}; + +static const struct software_node lenovo_yt3_bq25892_1_node = { + .properties = lenovo_yt3_bq25892_1_props, +}; + +/* bq25892 charger for the round li-ion cells in the hinge */ +static struct i2c_board_info lenovo_yoga_tab3_board_info = { + .type = "bq25892", + .addr = 0x6b, + .dev_name = "bq25892_1", + .swnode = &lenovo_yt3_bq25892_1_node, + .platform_data = &bq2589x_pdata, +}; + static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev) { struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent); @@ -459,6 +502,9 @@ static int cht_wc_i2c_adap_i2c_probe(struct platform_device *pdev) case INTEL_CHT_WC_LENOVO_YOGABOOK1: board_info = &lenovo_yogabook1_board_info; break; + case INTEL_CHT_WC_LENOVO_YT3_X90: + board_info = &lenovo_yoga_tab3_board_info; + break; default: dev_warn(&pdev->dev, "Unknown model, not instantiating charger device\n"); break; -- cgit v1.2.3