* [PATCH] [PATCH] venus: core: remove CNOC voting while device suspend
@ 2020-02-17 12:01 Mansur Alisha Shaik
2020-04-07 8:15 ` Stanimir Varbanov
2020-04-09 21:08 ` Matthias Kaehlcke
0 siblings, 2 replies; 3+ messages in thread
From: Mansur Alisha Shaik @ 2020-02-17 12:01 UTC (permalink / raw)
To: linux-media, stanimir.varbanov
Cc: linux-kernel, linux-arm-msm, vgarodia, mansur
video driver is voting for CNOC during probe and not clear
while device suspend. Because of which XO shutdown is
happing(BCM42: VALID: 0x1 VOTE_X: 0x0000 VOTE_Y: 0x0004).
So, clearing CNOC voting while device suspend.
Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
---
drivers/media/platform/qcom/venus/core.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index e7995cb..153effe 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -244,10 +244,6 @@ static int venus_probe(struct platform_device *pdev)
if (ret)
return ret;
- ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
- if (ret)
- return ret;
-
ret = hfi_create(core, &venus_core_ops);
if (ret)
return ret;
@@ -353,6 +349,10 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
if (ret)
return ret;
+ ret = icc_set_bw(core->cpucfg_path, 0, 0);
+ if (ret)
+ return ret;
+
if (pm_ops->core_power)
ret = pm_ops->core_power(dev, POWER_OFF);
@@ -371,6 +371,10 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
return ret;
}
+ ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
+ if (ret)
+ return ret;
+
return hfi_core_resume(core, false);
}
--
2.7.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] [PATCH] venus: core: remove CNOC voting while device suspend
2020-02-17 12:01 [PATCH] [PATCH] venus: core: remove CNOC voting while device suspend Mansur Alisha Shaik
@ 2020-04-07 8:15 ` Stanimir Varbanov
2020-04-09 21:08 ` Matthias Kaehlcke
1 sibling, 0 replies; 3+ messages in thread
From: Stanimir Varbanov @ 2020-04-07 8:15 UTC (permalink / raw)
To: Mansur Alisha Shaik, linux-media, stanimir.varbanov
Cc: linux-kernel, linux-arm-msm, vgarodia
Hi Mansur,
The patch looks fine and correct but the description should be better.
On 2/17/20 2:01 PM, Mansur Alisha Shaik wrote:
> video driver is voting for CNOC during probe and not clear
> while device suspend. Because of which XO shutdown is
> happing(BCM42: VALID: 0x1 VOTE_X: 0x0000 VOTE_Y: 0x0004).
>
> So, clearing CNOC voting while device suspend.
Maybe something like this ?
The Venus driver is voting Configuration NoC during .probe but not clear
voting in .suspend. As a consequence the whole device could leak energy
while in suspend. Correct this by moving voting in .resume and unvoting
in .suspend.
>
> Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
> ---
> drivers/media/platform/qcom/venus/core.c | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index e7995cb..153effe 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -244,10 +244,6 @@ static int venus_probe(struct platform_device *pdev)
> if (ret)
> return ret;
>
> - ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
> - if (ret)
> - return ret;
> -
> ret = hfi_create(core, &venus_core_ops);
> if (ret)
> return ret;
> @@ -353,6 +349,10 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
> if (ret)
> return ret;
>
> + ret = icc_set_bw(core->cpucfg_path, 0, 0);
> + if (ret)
> + return ret;
> +
> if (pm_ops->core_power)
> ret = pm_ops->core_power(dev, POWER_OFF);
>
> @@ -371,6 +371,10 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
> return ret;
> }
>
> + ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
> + if (ret)
> + return ret;
> +
> return hfi_core_resume(core, false);
> }
>
>
--
regards,
Stan
--
regards,
Stan
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] [PATCH] venus: core: remove CNOC voting while device suspend
2020-02-17 12:01 [PATCH] [PATCH] venus: core: remove CNOC voting while device suspend Mansur Alisha Shaik
2020-04-07 8:15 ` Stanimir Varbanov
@ 2020-04-09 21:08 ` Matthias Kaehlcke
1 sibling, 0 replies; 3+ messages in thread
From: Matthias Kaehlcke @ 2020-04-09 21:08 UTC (permalink / raw)
To: Mansur Alisha Shaik
Cc: linux-media, stanimir.varbanov, linux-kernel, linux-arm-msm,
vgarodia, Jeffrey Kardatzke, Atul Dhudase
Hi Mansur,
do you still intend to land this patch? If so please re-spin it to address
Stanimir's feedback.
Thanks
Matthias
On Mon, Feb 17, 2020 at 05:31:31PM +0530, Mansur Alisha Shaik wrote:
> video driver is voting for CNOC during probe and not clear
> while device suspend. Because of which XO shutdown is
> happing(BCM42: VALID: 0x1 VOTE_X: 0x0000 VOTE_Y: 0x0004).
>
> So, clearing CNOC voting while device suspend.
>
> Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
> ---
> drivers/media/platform/qcom/venus/core.c | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index e7995cb..153effe 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -244,10 +244,6 @@ static int venus_probe(struct platform_device *pdev)
> if (ret)
> return ret;
>
> - ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
> - if (ret)
> - return ret;
> -
> ret = hfi_create(core, &venus_core_ops);
> if (ret)
> return ret;
> @@ -353,6 +349,10 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
> if (ret)
> return ret;
>
> + ret = icc_set_bw(core->cpucfg_path, 0, 0);
> + if (ret)
> + return ret;
> +
> if (pm_ops->core_power)
> ret = pm_ops->core_power(dev, POWER_OFF);
>
> @@ -371,6 +371,10 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
> return ret;
> }
>
> + ret = icc_set_bw(core->cpucfg_path, 0, kbps_to_icc(1000));
> + if (ret)
> + return ret;
> +
> return hfi_core_resume(core, false);
> }
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-02-17 12:01 [PATCH] [PATCH] venus: core: remove CNOC voting while device suspend Mansur Alisha Shaik
2020-04-07 8:15 ` Stanimir Varbanov
2020-04-09 21:08 ` Matthias Kaehlcke
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