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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Vikash Garodia <vgarodia@codeaurora.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
Subject: Re: [PATCH 1/4] soc: qcom: mdt_loader: Add check to make scm calls
Date: Thu, 17 May 2018 22:28:44 -0700	[thread overview]
Message-ID: <20180518052844.GP14924@minitux> (raw)
In-Reply-To: <1526556740-25494-2-git-send-email-vgarodia@codeaurora.org>

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/ 

Regards,
Bjorn

  parent reply	other threads:[~2018-05-18  5:28 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 [this message]
2018-05-18  7:18     ` Vikash Garodia
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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