Re: [PATCH 10/14] gpio: omap: Drop the concept of gpio banks not being able to lose context.
From: Tony Lindgren
Date: Thu Apr 12 2018 - 10:23:05 EST
* Keerthy <j-keerthy@xxxxxx> [180412 03:56]:
> From: Russ Dill <Russ.Dill@xxxxxx>
> --- a/drivers/gpio/gpio-omap.c
> +++ b/drivers/gpio/gpio-omap.c
> @@ -68,7 +68,7 @@ struct gpio_bank {
> bool dbck_enabled;
> bool is_mpuio;
> bool dbck_flag;
> - bool loses_context;
> +
> bool context_valid;
> int stride;
> u32 width;
For some SoCs GPIO bank1 won't lose the context ever. So I'd like to
keep loses_context flag around to avoid pointless save and restore.
But maybe this still happens with get_context_loss_count and I'm
misreading this patch?
However..
> @@ -1198,15 +1198,9 @@ static int omap_gpio_probe(struct platform_device *pdev)
> #ifdef CONFIG_OF_GPIO
> bank->chip.of_node = of_node_get(node);
> #endif
> - if (node) {
> - if (!of_property_read_bool(node, "ti,gpio-always-on"))
> - bank->loses_context = true;
> - } else {
> - bank->loses_context = pdata->loses_context;
> -
> - if (bank->loses_context)
> - bank->get_context_loss_count =
> - pdata->get_context_loss_count;
> + if (!node) {
> + bank->get_context_loss_count =
> + pdata->get_context_loss_count;
> }
>
> if (bank->regs->set_dataout && bank->regs->clr_dataout)
.. I do have a patch ready here that I'll post after -rc1 to remove
CONFIG_OMAP_PM_NOOP related stuff, turns out that's noop anyways :)
So yeah the pdata->get_context_loss_count parts are noop and can
be just removed.
Regards,
Tony