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From: Stanimir Varbanov <stanimir.varbanov@linaro.org>
To: Vikash Garodia <vgarodia@codeaurora.org>,
	hverkuil@xs4all.nl, mchehab@kernel.org, andy.gross@linaro.org,
	bjorn.andersson@linaro.org
Cc: 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 3/4] venus: add check to make scm calls
Date: Tue, 22 May 2018 16:04:51 +0300	[thread overview]
Message-ID: <9d5e12b1-40bd-adab-05f0-bdb209bf0174@linaro.org> (raw)
In-Reply-To: <1526556740-25494-4-git-send-email-vgarodia@codeaurora.org>

Hi Vikash,

On 05/17/2018 02:32 PM, 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. This code is in preparation to add PIL
> functionality in venus driver.
> 
> Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>
> ---
>  drivers/media/platform/qcom/venus/hfi_venus.c | 26 +++++++++++++++++++-------
>  1 file changed, 19 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
> index f61d34b..9bcce94 100644
> --- a/drivers/media/platform/qcom/venus/hfi_venus.c
> +++ b/drivers/media/platform/qcom/venus/hfi_venus.c
> @@ -27,6 +27,7 @@
>  #include "hfi_msgs.h"
>  #include "hfi_venus.h"
>  #include "hfi_venus_io.h"
> +#include "firmware.h"
>  
>  #define HFI_MASK_QHDR_TX_TYPE		0xff000000
>  #define HFI_MASK_QHDR_RX_TYPE		0x00ff0000
> @@ -570,13 +571,19 @@ static int venus_halt_axi(struct venus_hfi_device *hdev)
>  static int venus_power_off(struct venus_hfi_device *hdev)
>  {
>  	int ret;
> +	void __iomem *reg_base;
>  
>  	if (!hdev->power_enabled)
>  		return 0;
>  
> -	ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0);
> -	if (ret)
> -		return ret;
> +	if (qcom_scm_is_available()) {
> +		ret = qcom_scm_set_remote_state(TZBSP_VIDEO_STATE_SUSPEND, 0);

I think it will be clearer if we abstract qcom_scm_set_remote_state to
something like venus_set_state(SUSPEND|RESUME) in firmware.c and export
the functions to be used here.

-- 
regards,
Stan

  reply	other threads:[~2018-05-22 13:05 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
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 [this message]
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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