From: Vikash Garodia <vgarodia@codeaurora.org>
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: hverkuil@xs4all.nl, mchehab@kernel.org, andy.gross@linaro.org,
stanimir.varbanov@linaro.org, linux-media@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-soc@vger.kernel.org, acourbot@google.com,
linux-media-owner@vger.kernel.org
Subject: Re: [PATCH 1/4] soc: qcom: mdt_loader: Add check to make scm calls
Date: Fri, 18 May 2018 12:48:44 +0530 [thread overview]
Message-ID: <5c3934858f7e48b0de13f12d40d126f1@codeaurora.org> (raw)
In-Reply-To: <20180518052844.GP14924@minitux>
Hi Bjorn,
On 2018-05-18 10:58, Bjorn Andersson wrote:
> On Thu 17 May 04:32 PDT 2018, Vikash Garodia wrote:
>
>> In order to invoke scm calls, ensure that the platform
>> has the required support to invoke the scm calls in
>> secure world.
>>
>> Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>
>> ---
>> drivers/soc/qcom/mdt_loader.c | 21 +++++++++++++--------
>> 1 file changed, 13 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/soc/qcom/mdt_loader.c
>> b/drivers/soc/qcom/mdt_loader.c
>> index 17b314d..db55d53 100644
>> --- a/drivers/soc/qcom/mdt_loader.c
>> +++ b/drivers/soc/qcom/mdt_loader.c
>> @@ -121,10 +121,12 @@ int qcom_mdt_load(struct device *dev, const
>> struct firmware *fw,
>> if (!fw_name)
>> return -ENOMEM;
>>
>> - ret = qcom_scm_pas_init_image(pas_id, fw->data, fw->size);
>> - if (ret) {
>> - dev_err(dev, "invalid firmware metadata\n");
>> - goto out;
>> + if (qcom_scm_is_available()) {
>
> qcom_scm_is_available() tells you if the qcom_scm driver has been
> probed, not if your platform implements PAS.
>
> Please add a DT property to tell the driver if it should require PAS or
> not (the absence of such property should indicate PAS is required, for
> backwards compatibility purposes). For the MDT loader we need to merge
> the following patch to make this work:
>
> https://patchwork.kernel.org/patch/10397889/
Thanks for your inputs. I have already added a child node in video DT
node
to tell the driver if PAS is not needed.
I will drop this patch as use
https://patchwork.kernel.org/patch/10397889
and update the driver to call new api qcom_mdt_load_no_init.
> Regards,
> Bjorn
next prev parent reply other threads:[~2018-05-18 7:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-17 11:32 [PATCH 0/4] Venus updates - PIL Vikash Garodia
2018-05-17 11:32 ` [PATCH 1/4] soc: qcom: mdt_loader: Add check to make scm calls Vikash Garodia
2018-05-17 15:50 ` Jordan Crouse
2018-05-18 5:28 ` Bjorn Andersson
2018-05-18 7:18 ` Vikash Garodia [this message]
2018-05-17 11:32 ` [PATCH 2/4] media: venus: add a routine to reset ARM9 Vikash Garodia
2018-05-17 15:57 ` Jordan Crouse
2018-05-17 11:32 ` [PATCH 3/4] venus: add check to make scm calls Vikash Garodia
2018-05-22 13:04 ` Stanimir Varbanov
2018-05-22 19:50 ` Jordan Crouse
2018-05-22 20:57 ` Stanimir Varbanov
2018-05-23 5:30 ` Vikash Garodia
2018-05-17 11:32 ` [PATCH 4/4] media: venus: add PIL support Vikash Garodia
2018-05-18 0:40 ` Trilok Soni
2018-05-18 12:20 ` Vikash Garodia
2018-05-22 13:02 ` Stanimir Varbanov
2018-05-22 15:52 ` Stanimir Varbanov
2018-06-01 6:53 ` Vikash Garodia
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