On 11/09/2020 14:31, Adam Ford wrote:
> The bandgap sensor can be idled when the processor is too, but it
> isn't currently being done, so the power consumption of OMAP3
> boards can elevated if the bangap sensor is enabled.
>
> This patch attempts to use some additional power management
> to idle the clock to the bandgap when not needed.
>
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Tested-by: Andreas Kemnade <andreas@xxxxxxxxxxxx> # GTA04
> ---
[ ... ]
> - /* First thing is to remove sensor interfaces */
> + cpu_pm_unregister_notifier(&bgp->nb);
> +
> + /* Remove sensor interfaces */
> for (i = 0; i < bgp->conf->sensor_count; i++) {
> if (bgp->conf->sensors[i].unregister_cooling)
> bgp->conf->sensors[i].unregister_cooling(bgp, i);
> @@ -1150,9 +1167,43 @@ static int ti_bandgap_suspend(struct device *dev)
> if (TI_BANDGAP_HAS(bgp, CLK_CTRL))
> clk_disable_unprepare(bgp->fclock);
>
> + bgp->is_suspended = true;
Is this flag really needed?
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