From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Hans de Goede <hdegoede@redhat.com>
Cc: "Rafael J . Wysocki" <rafael@kernel.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Mark Gross <markgross@kernel.org>,
Andy Shevchenko <andy@kernel.org>, Wolfram Sang <wsa@kernel.org>,
Lee Jones <lee.jones@linaro.org>,
Sebastian Reichel <sre@kernel.org>,
MyungJoo Ham <myungjoo.ham@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Ard Biesheuvel <ardb@kernel.org>, Len Brown <lenb@kernel.org>,
linux-acpi@vger.kernel.org, Yauhen Kharuzhy <jekhor@gmail.com>,
Tsuchiya Yuto <kitakar@gmail.com>,
Fabio Aiuto <fabioaiuto83@gmail.com>,
platform-driver-x86@vger.kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org
Subject: Re: [PATCH v4 12/20] power: supply: bq25890: Support higher charging voltages through Pump Express+ protocol
Date: Mon, 31 Jan 2022 15:48:41 +0200 [thread overview]
Message-ID: <YffouVvL9M4fch0I@smile.fi.intel.com> (raw)
In-Reply-To: <20220130204557.15662-13-hdegoede@redhat.com>
On Sun, Jan 30, 2022 at 09:45:49PM +0100, Hans de Goede wrote:
> From: Yauhen Kharuzhy <jekhor@gmail.com>
>
> Add a "linux,pump-express-vbus-max" property which indicates if the Pump
> Express+ protocol should be used to increase the charging protocol.
>
> If this new property is set and a DCP charger is detected then request
> a higher charging voltage through the Pump Express+ protocol.
>
> So far this new property is only used on x86/ACPI (non devicetree) devs,
> IOW it is not used in actual devicetree files. The devicetree-bindings
> maintainers have requested properties like these to not be added to the
> devicetree-bindings, so the new property is deliberately not added
> to the existing devicetree-bindings.
>
> Changes by Hans de Goede:
> - Port to my bq25890 patch-series + various cleanups
> - Make behavior configurable through a new "linux,pump-express-vbus-max"
> device-property
> - Sleep 1 second before re-checking the Vbus voltage after requesting
> it to be raised, to ensure that the ADC has time to sampled the new Vbus
> - Add VBUSV bq25890_tables[] entry and use it in bq25890_get_vbus_voltage()
> - Tweak commit message
...
> +static void bq25890_pump_express_work(struct work_struct *data)
> +{
> + struct bq25890_device *bq =
> + container_of(data, struct bq25890_device, pump_express_work.work);
> + int voltage, i, ret;
> +
> + dev_dbg(bq->dev, "Start to request input voltage increasing\n");
> +
> + /* Enable current pulse voltage control protocol */
> + ret = bq25890_field_write(bq, F_PUMPX_EN, 1);
> + if (ret < 0)
> + goto error_print;
> +
> + for (i = 0; i < PUMP_EXPRESS_MAX_TRIES; i++) {
> + voltage = bq25890_get_vbus_voltage(bq);
> + if (voltage < 0)
> + goto error_print;
It also can be (at least in align with the rest error paths)
ret = bq25890_get_vbus_voltage(bq);
if (ret < 0)
goto error_print;
voltage = ret;
followed up (but not necessarily)...
> + dev_dbg(bq->dev, "input voltage = %d uV\n", voltage);
> +
> + if ((voltage + PUMP_EXPRESS_VBUS_MARGIN_uV) >
> + bq->pump_express_vbus_max)
> + break;
> +
> + ret = bq25890_field_write(bq, F_PUMPX_UP, 1);
> + if (ret < 0)
> + goto error_print;
> +
> + /* Note a single PUMPX up pulse-sequence takes 2.1s */
> + ret = regmap_field_read_poll_timeout(bq->rmap_fields[F_PUMPX_UP],
> + ret, !ret, 100000, 3000000);
> + if (ret < 0)
> + goto error_print;
> +
> + /* Make sure ADC has sampled Vbus before checking again */
> + msleep(1000);
> + }
> +
> + bq25890_field_write(bq, F_PUMPX_EN, 0);
> +
> + dev_info(bq->dev, "Hi-voltage charging requested, input voltage is %d mV\n",
> + voltage);
> + return;
> +error_print:
if (ret < 0)
But it's up to you.
> + dev_err(bq->dev, "Failed to request hi-voltage charging\n");
> +}
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2022-01-31 13:49 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-30 20:45 [PATCH v4 resend 00/20] power-suppy/i2c/extcon: Fix charger setup on Xiaomi Mi Pad 2 and Lenovo Yogabook Hans de Goede
2022-01-30 20:45 ` [PATCH v4 01/20] power: supply: core: Refactor power_supply_set_input_current_limit_from_supplier() Hans de Goede
2022-01-31 13:37 ` Andy Shevchenko
2022-01-31 13:43 ` Andy Shevchenko
2022-01-31 14:39 ` Hans de Goede
2022-01-30 20:45 ` [PATCH v4 02/20] power: supply: bq25890: Rename IILIM field to IINLIM Hans de Goede
2022-01-30 20:45 ` [PATCH v4 03/20] power: supply: bq25890: Reduce reported CONSTANT_CHARGE_CURRENT_MAX for low temperatures Hans de Goede
2022-01-30 20:45 ` [PATCH v4 04/20] power: supply: bq25890: Add a bq25890_rw_init_data() helper Hans de Goede
2022-01-30 20:45 ` [PATCH v4 05/20] power: supply: bq25890: Add support to skip reset at probe() / remove() Hans de Goede
2022-01-30 20:45 ` [PATCH v4 06/20] power: supply: bq25890: Add support to read back the settings from the chip Hans de Goede
2022-01-30 20:45 ` [PATCH v4 07/20] power: supply: bq25890: Enable charging on boards where we skip reset Hans de Goede
2022-01-30 20:45 ` [PATCH v4 08/20] power: supply: bq25890: Drop dev->platform_data == NULL check Hans de Goede
2022-01-30 20:45 ` [PATCH v4 09/20] power: supply: bq25890: Add bq25890_set_otg_cfg() helper Hans de Goede
2022-01-30 20:45 ` [PATCH v4 10/20] power: supply: bq25890: Add support for registering the Vbus boost converter as a regulator Hans de Goede
2022-01-30 20:45 ` [PATCH v4 11/20] power: supply: bq25890: On the bq25892 set the IINLIM based on external charger detection Hans de Goede
2022-01-30 20:45 ` [PATCH v4 12/20] power: supply: bq25890: Support higher charging voltages through Pump Express+ protocol Hans de Goede
2022-01-31 13:48 ` Andy Shevchenko [this message]
2022-01-31 15:18 ` Hans de Goede
2022-01-31 16:19 ` Andy Shevchenko
2022-01-30 20:45 ` [PATCH v4 13/20] power: supply: bq25890: Use the devm_regmap_field_bulk_alloc() helper Hans de Goede
2022-01-30 20:45 ` [PATCH v4 14/20] mfd: intel_soc_pmic_chtwc: Add cht_wc_model data to struct intel_soc_pmic Hans de Goede
2022-01-30 20:45 ` [PATCH v4 15/20] i2c: cht-wc: Make charger i2c-client instantiation board/device-model specific Hans de Goede
2022-01-31 13:50 ` Andy Shevchenko
2022-01-30 20:45 ` [PATCH v4 16/20] extcon: intel-cht-wc: Use new cht_wc_model intel_soc_pmic field Hans de Goede
2022-01-30 20:45 ` [PATCH v4 17/20] extcon: intel-cht-wc: Support devs with Micro-B / USB-2 only Type-C connectors Hans de Goede
2022-01-31 13:54 ` Andy Shevchenko
2022-01-31 15:21 ` Hans de Goede
2022-01-30 20:45 ` [PATCH v4 18/20] extcon: intel-cht-wc: Refactor cht_wc_extcon_get_charger() Hans de Goede
2022-01-31 13:56 ` Andy Shevchenko
2022-01-31 15:22 ` Hans de Goede
2022-01-30 20:45 ` [PATCH v4 19/20] extcon: intel-cht-wc: Add support for registering a power_supply class-device Hans de Goede
2022-01-30 20:45 ` [PATCH v4 20/20] extcon: intel-cht-wc: Report RID_A for ACA adapters Hans de Goede
-- strict thread matches above, loose matches on Subject: below --
2021-12-06 9:32 [PATCH v4 00/20] power-suppy/i2c/extcon: Fix charger setup on Xiaomi Mi Pad 2 and Lenovo Yogabook Hans de Goede
2021-12-06 9:33 ` [PATCH v4 12/20] power: supply: bq25890: Support higher charging voltages through Pump Express+ protocol Hans de Goede
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