Re: [PATCH] thermal/drivers/tsens: Add suspend to RAM support for tsens

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On 1/24/24 16:25, Priyansh Jain wrote:

On 1/24/2024 6:04 PM, Konrad Dybcio wrote:

On 1/24/24 11:42, Priyansh Jain wrote:

On 1/22/2024 8:02 PM, Konrad Dybcio wrote:
On 22.01.2024 11:07, Priyansh Jain wrote:
Add suspend callback support for tsens which disables tsens interrupts
in suspend to RAM callback.

Would it not be preferrable to have the "critical overheat", wakeup-
capable interrupts be enabled, even if the system is suspended?

As part of suspend to RAM, tsens hardware will be turned off and it cannot generate any interrupt.Also system doesn't want to abort suspend to RAM due to tsens interrupts since system is already going into lowest
power state. Hence disabling tsens interrupt during suspend to RAM callback.

Is that a hardware limitation, or a software design choice? I'm not
sure I want my phone to have thermal notifications disabled when
it's suspended.


As part of suspend to RAM , entire SOC will be off,

What do you mean by "entire SOC[sic] will be off"? Surely the memory
controller must be on to keep refreshing the memory? Are you thinking
of suspend-to-disk (hibernation), by chance?

this mode (suspend to RAM) is not intended for Mobile product. Tsens interrupts are not
disabled as part of suspend to idle(suspend mode for mobile).

That's clearly untrue, e.g. the PSCI firmware on SM8550 implements


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [Linux for Sparc]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux