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From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Hans de Goede <hdegoede@redhat.com>
Cc: Guenter Roeck <linux@roeck-us.net>,
	Darren Hart <dvhart@infradead.org>,
	Andy Shevchenko <andy@infradead.org>,
	Wolfram Sang <wsa@the-dreams.de>,
	Sebastian Reichel <sre@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Platform Driver <platform-driver-x86@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	linux-i2c <linux-i2c@vger.kernel.org>,
	Liam Breck <liam@networkimprov.net>,
	Tony Lindgren <tony@atomide.com>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	devel@driverdev.osuosl.org
Subject: Re: [PATCH 18/18] i2c-cht-wc: Add device-properties for fusb302 integration
Date: Sun, 6 Aug 2017 19:29:08 +0300	[thread overview]
Message-ID: <CAHp75VfM-cGzhng4amYs=Y3nJorFud6u6R_xj4C-rSJuHePicQ@mail.gmail.com> (raw)
In-Reply-To: <ae6fcdce-1dd0-d29f-ce04-9d9c77f14730@redhat.com>

On Sun, Aug 6, 2017 at 6:05 PM, Hans de Goede <hdegoede@redhat.com> wrote:
> On 06-08-17 16:35, Guenter Roeck wrote:
>> On 08/06/2017 05:35 AM, Hans de Goede wrote:

> FWIW all DSTDs I've seen are all copy and paste and all declare a INT33FE
> ACPI
> device with identical i2c client addresses which strongly suggests the
> use of the same combo. Note that on most devices this part of the DSTD is
> not active (_STA returns 0) because they actually use a different config.

Which is quite likely just blindly copied from a reference BIOS code.
(Reminds me that bug with GPIO pin setting for interrupt as output only)

> The only extra safe-guard I can come up with is a DMI string check, but that
> is sub-optimal since the DMI strings on these devices contain useful values
> as "Default String" still we could add it as an extra check.

...and in worst cases CPU model ID.

> Since I had the same concern I've done a web search and I've been unable
> to find any other devices which seem to use a Whiskey Cove PMIC, but that
> does not mean that there aren't any.


-- 
With Best Regards,
Andy Shevchenko

      reply	other threads:[~2017-08-06 16:29 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-06 12:35 [PATCH 00/18] Hookup typec power-negotation to the PMIC and charger Hans de Goede
2017-08-06 12:35 ` [PATCH 01/18] staging: typec: tcpm: Add get_usb2_current_limit tcpc_dev callback Hans de Goede
2017-08-06 14:18   ` Guenter Roeck
2017-08-06 14:29     ` Hans de Goede
2017-08-06 14:52       ` Guenter Roeck
2017-08-06 12:35 ` [PATCH 02/18] staging: typec: tcpm: Add extcon helper functions for USB2 current limit detect Hans de Goede
2017-08-06 14:07   ` Guenter Roeck
2017-08-06 12:35 ` [PATCH 03/18] staging: typec: tcpm: Split tcpm code into tcpm-core.c and tcpm-helpers.c Hans de Goede
2017-08-06 12:35 ` [PATCH 04/18] staging: typec: tcpm: Add helpers for exporting current-limit through a psy Hans de Goede
2017-08-06 14:13   ` Guenter Roeck
2017-08-06 14:21     ` Hans de Goede
2017-08-06 14:41       ` Guenter Roeck
2017-08-06 12:35 ` [PATCH 05/18] staging: typec: fusb302: Set max supply voltage to 5V Hans de Goede
2017-08-06 12:35 ` [PATCH 06/18] staging: typec: fusb302: Get max snk mv/ma/mw from device-properties Hans de Goede
2017-08-06 14:03   ` Guenter Roeck
2017-08-06 12:35 ` [PATCH 07/18] staging: typec: fusb302: Use client->irq as irq if set Hans de Goede
2017-08-06 12:35 ` [PATCH 08/18] staging: typec: fusb302: Add support for USB2 charger detection through extcon Hans de Goede
2017-08-06 14:22   ` Guenter Roeck
2017-08-06 14:36     ` Hans de Goede
2017-08-06 14:58       ` Guenter Roeck
2017-08-06 12:35 ` [PATCH 09/18] staging: typec: fusb302: Use tcpm_set_current_limit_psy Hans de Goede
2017-08-06 14:24   ` Guenter Roeck
2017-08-06 12:35 ` [PATCH 10/18] staging: typec: fusb302: Add support for fcs,vbus-regulator-name device-property Hans de Goede
2017-08-06 14:30   ` Guenter Roeck
2017-08-06 14:52     ` Hans de Goede
2017-08-06 15:20       ` Guenter Roeck
2017-08-06 15:44     ` Hans de Goede
2017-08-07 11:10       ` Mark Brown
2017-08-07 14:41         ` Hans de Goede
2017-08-07 15:41           ` Mark Brown
2017-08-07 19:20             ` Hans de Goede
2017-08-08  9:39               ` Mark Brown
     [not found]                 ` <0b75c318-0f71-c536-7c7f-9ba16b215690@redhat.com>
     [not found]                   ` <20170808144217.c2fm25uge75p4lo2@sirena.org.uk>
2017-08-08 20:53                     ` Hans de Goede
2017-08-06 12:35 ` [PATCH 11/18] power: supply: Fix power_supply_am_i_supplied to return -ENODEV when apropriate Hans de Goede
2017-08-06 14:31   ` Guenter Roeck
2017-08-06 14:54     ` Hans de Goede
2017-08-06 12:35 ` [PATCH 12/18] power: supply: Add power_supply_set_input_current_limit_from_supplier helper Hans de Goede
2017-08-06 12:35 ` [PATCH 13/18] power: supply: bq24190_charger: Export 5V boost converter as regulator Hans de Goede
2017-08-08  4:15   ` Tony Lindgren
2017-08-08  8:39   ` Liam Breck
2017-08-08  9:00     ` Hans de Goede
2017-08-08 18:57       ` Liam Breck
2017-08-08 21:09         ` Hans de Goede
2017-08-06 12:35 ` [PATCH 14/18] power: supply: bq24190_charger: Add input_current_limit property Hans de Goede
2017-08-06 12:35 ` [PATCH 15/18] power: supply: bq24190_charger: Get input_current_limit from our supplier Hans de Goede
2017-08-08  8:24   ` Liam Breck
2017-08-08  9:11     ` Hans de Goede
2017-08-06 12:35 ` [PATCH 16/18] power: supply: bq24190_charger: Remove extcon handling Hans de Goede
2017-08-08  8:27   ` Liam Breck
2017-08-08  9:12     ` Hans de Goede
2017-08-06 12:35 ` [PATCH 17/18] platform/x86: intel_cht_int33fe Update fusb302 type string, add properties Hans de Goede
2017-08-06 12:35 ` [PATCH 18/18] i2c-cht-wc: Add device-properties for fusb302 integration Hans de Goede
2017-08-06 14:35   ` Guenter Roeck
2017-08-06 15:05     ` Hans de Goede
2017-08-06 16:29       ` Andy Shevchenko [this message]

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