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    Subject[PATCH 2/3] i2c: cht-wc: Add charger-chip info for the Lenovo Yoga Tab 3 YT3-X90F
    Date
    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 <hdegoede@redhat.com>
    ---
    drivers/i2c/busses/i2c-cht-wc.c | 46 +++++++++++++++++++++++++++++++++
    1 file changed, 46 insertions(+)

    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;
    --
    2.38.1
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