From: Adrian Hunter <adrian.hunter@intel.com>
To: "S-k, Shyam-sundar" <Shyam-sundar.S-k@amd.com>,
Raul E Rangel <rrangel@chromium.org>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"Agrawal, Nitesh-kumar" <Nitesh-kumar.Agrawal@amd.com>
Cc: "djkurtz@chromium.org" <djkurtz@chromium.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
"Sen, Pankaj" <Pankaj.Sen@amd.com>,
"Shah, Nehal-bakulchandra" <Nehal-bakulchandra.Shah@amd.com>
Subject: Re: [RFC PATCH 2/2] mmc: sdhci: Quirk for AMD SDHC Device 0x7906
Date: Mon, 13 May 2019 09:44:36 +0300 [thread overview]
Message-ID: <e2341ef7-134d-7eed-bb86-e1a341ea8914@intel.com> (raw)
In-Reply-To: <495b70a3-0232-343b-9081-56869415986f@amd.com>
On 12/05/19 8:04 PM, S-k, Shyam-sundar wrote:
> On 5/2/2019 12:02 PM, Adrian Hunter wrote:
>> Cc: some AMD people
>>
>> On 1/05/19 8:54 PM, Raul E Rangel wrote:
>>> AMD SDHC 0x7906 requires a hard reset to clear all internal state.
>>> Otherwise it can get into a bad state where the DATA lines are always
>>> read as zeros.
>>>
>>> This change requires firmware that can transition the device into
>>> D3Cold for it to work correctly. If the firmware does not support
>>> transitioning to D3Cold then the power state transitions are a no-op.
>>>
>>> Signed-off-by: Raul E Rangel <rrangel@chromium.org>
> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
next prev parent reply other threads:[~2019-05-13 6:44 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-01 17:54 [RFC PATCH 1/2] mmc: sdhci: Manually check card status after reset Raul E Rangel
2019-05-01 17:54 ` [RFC PATCH 2/2] mmc: sdhci: Quirk for AMD SDHC Device 0x7906 Raul E Rangel
2019-05-02 6:32 ` Adrian Hunter
2019-05-02 15:42 ` Raul Rangel
2019-05-12 17:04 ` S-k, Shyam-sundar
2019-05-13 6:44 ` Adrian Hunter [this message]
2019-05-28 7:41 ` Ulf Hansson
2019-06-03 20:34 ` Raul Rangel
2019-05-03 15:12 ` [RFC PATCH 1/2] mmc: sdhci: Manually check card status after reset Raul Rangel
2019-05-08 19:00 ` Raul Rangel
2019-05-28 7:38 ` Ulf Hansson
2019-06-07 16:05 ` Raul Rangel
2019-06-10 16:17 ` Ulf Hansson
2019-06-10 16:32 ` Raul Rangel
2019-06-11 10:30 ` Adrian Hunter
2019-06-19 14:56 ` Raul Rangel
2019-08-01 15:16 ` Raul Rangel
2019-08-02 4:58 ` Adrian Hunter
2019-08-05 16:49 ` Raul Rangel
2019-08-06 5:51 ` Adrian Hunter
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