From: Thierry Escande <thierry.escande@collabora.com>
To: Gwendal Grignou <gwendal@chromium.org>
Cc: Benson Leung <bleung@chromium.org>,
Lee Jones <lee.jones@linaro.org>,
Jonathan Cameron <jic23@kernel.org>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5 2/3] platform/chrome: cros_ec_lpc: Add support for Google Glimmer
Date: Tue, 5 Dec 2017 22:55:14 +0100 [thread overview]
Message-ID: <e61244cb-d82f-dd85-ddff-9fa47dbbf0ab@collabora.com> (raw)
In-Reply-To: <CAMHSBOU_Xkd=cOCU_KFR_ytY8azjOzLWUNOgeDnE-dGTEW=4Jg@mail.gmail.com>
Hi Gwendal,
On 01/12/2017 20:54, Gwendal Grignou wrote:
> This is not required.
> Looking with dmidecode, Glimmer reports:
> ...
> BIOS Information
> Vendor: coreboot
> Version: Google_Glimmer.5216.198.19
> ...
>
> Therefore, the first entry of cros_ec_lpc_dmi_table will match.
These DMI vendor/version strings are not exposed when booting in legacy
mode using SeaBIOS on the Yoga 11e. Instead it matches with the pair
GOOGLE/Glimmer. So this patch is needed for booting a vanilla kernel in
legacy mode.
Regards,
Thierry
>
> Gwendal.
>
> On Fri, Dec 1, 2017 at 5:42 AM, Thierry Escande
> <thierry.escande@collabora.com> wrote:
>> This patch adds device information to the DMI table of the cros_ec_lpc
>> driver for Google Glimmer devices. Since Google BIOS does not enumerate
>> devices in the LPC bus, the cros_ec_lpc driver checks for system
>> compatibility and registers the cros_ec device itself.
>>
>> Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
>> ---
>> drivers/platform/chrome/cros_ec_lpc.c | 7 +++++++
>> 1 file changed, 7 insertions(+)
>>
>> diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
>> index 0b26a09..4a2fc55 100644
>> --- a/drivers/platform/chrome/cros_ec_lpc.c
>> +++ b/drivers/platform/chrome/cros_ec_lpc.c
>> @@ -365,6 +365,13 @@ static const struct dmi_system_id cros_ec_lpc_dmi_table[] __initconst = {
>> DMI_MATCH(DMI_PRODUCT_NAME, "Peppy"),
>> },
>> },
>> + {
>> + /* x86-glimmer, the Lenovo Thinkpad Yoga 11e. */
>> + .matches = {
>> + DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
>> + DMI_MATCH(DMI_PRODUCT_NAME, "Glimmer"),
>> + },
>> + },
>> { /* sentinel */ }
>> };
>> MODULE_DEVICE_TABLE(dmi, cros_ec_lpc_dmi_table);
>> --
>> 2.7.4
>>
next prev parent reply other threads:[~2017-12-05 21:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-01 13:42 [PATCH v5 0/3] platform/chrome: Support for cros_ec_accel_legacy driver Thierry Escande
2017-12-01 13:42 ` [PATCH v5 1/3] platform/chrome: cros_ec_lpc: Register the driver if ACPI entry is missing Thierry Escande
2017-12-01 19:49 ` Gwendal Grignou
2017-12-16 6:12 ` Benson Leung
2017-12-16 6:03 ` Benson Leung
2017-12-16 6:04 ` Benson Leung
2017-12-01 13:42 ` [PATCH v5 2/3] platform/chrome: cros_ec_lpc: Add support for Google Glimmer Thierry Escande
2017-12-01 19:54 ` Gwendal Grignou
2017-12-05 21:55 ` Thierry Escande [this message]
2017-12-06 18:04 ` Gwendal Grignou
2017-12-16 6:10 ` Benson Leung
2017-12-01 13:42 ` [PATCH v5 3/3] platform/chrome: Register cros_ec_accel_legacy driver Thierry Escande
2017-12-01 20:00 ` Gwendal Grignou
2017-12-07 9:31 ` Lee Jones
2018-01-18 8:05 ` Gwendal Grignou
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