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From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 10/14] gpio: omap: Drop the concept of gpio banks not being able to lose context.
Date: Thu, 12 Apr 2018 07:22:57 -0700	[thread overview]
Message-ID: <20180412142257.GW5700@atomide.com> (raw)
In-Reply-To: <1523505239-16229-11-git-send-email-j-keerthy@ti.com>

* Keerthy <j-keerthy@ti.com> [180412 03:56]:
> From: Russ Dill <Russ.Dill@ti.com>
> --- 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

  reply	other threads:[~2018-04-12 14:22 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-12  3:53 [PATCH 00/14] arm: OMAP: AM437X: Save restores patches for rtc mode with DDR In self-refresh Keerthy
2018-04-12  3:53 ` [PATCH 01/14] memory: ti-emif-sram: Add resume function to recopy sram code Keerthy
2018-04-12 16:44   ` santosh.shilimkar at oracle.com
2018-04-16 10:20     ` Keerthy
2018-04-16 10:29     ` Keerthy
2018-05-23  8:47       ` Keerthy
2018-05-23 16:42         ` Santosh Shilimkar
2018-04-12  3:53 ` [PATCH 02/14] ARM: OMAP2: Add functions to save and restore clockdomain context en-masse Keerthy
2018-04-12  3:53 ` [PATCH 03/14] ARM: OMAP2+: omap_hwmod: Introduce HWMOD_NEEDS_REIDLE Keerthy
2018-04-12 14:34   ` Tony Lindgren
2018-04-12  3:53 ` [PATCH 04/14] ARM: OMAP2: Add functions to save and restore omap hwmod context en-masse Keerthy
2018-04-12  3:53 ` [PATCH 05/14] ARM: OMAP2: Add functions to save and restore powerdomain context Keerthy
2018-04-12 14:37   ` Tony Lindgren
2018-04-12  3:53 ` [PATCH 06/14] ARM: AM33XX: Add functions to save/restore am33xx control registers Keerthy
2018-04-12  3:53 ` [PATCH 07/14] ARM: AM43XX: Add functions to save/restore am43xx " Keerthy
2018-04-12  3:53 ` [PATCH 08/14] ARM: OMAP2: Add functions to save and restore pinctrl context Keerthy
2018-04-12 14:16   ` Tony Lindgren
2018-04-13  6:16     ` Keerthy
2018-04-12  3:53 ` [PATCH 09/14] ARM: OMAP2: Drop the concept of certain power domains not being able to lose context Keerthy
2018-04-12  3:53 ` [PATCH 10/14] gpio: omap: Drop the concept of gpio banks " Keerthy
2018-04-12 14:22   ` Tony Lindgren [this message]
2018-04-12 20:10     ` Grygorii Strashko
2018-04-12  3:53 ` [PATCH 11/14] gpio: omap: Restore power_mode configuration at resume time Keerthy
2018-04-12 14:39   ` Tony Lindgren
2018-04-12 20:02     ` Grygorii Strashko
2018-04-12  3:53 ` [PATCH 12/14] OMAP: CLK: CLKSRC: Add suspend resume hooks Keerthy
2018-04-12 14:27   ` Tony Lindgren
2018-05-22  7:57     ` Keerthy
2018-05-22 13:39       ` Tony Lindgren
2018-04-12  3:53 ` [PATCH 13/14] ARM: hwmod: RTC: Don't assume lock/unlock will be called with irq enabled Keerthy
2018-04-12  3:53 ` [PATCH 14/14] ARM: OMAP2+: prm44xx: Introduce context save/restore for am43 PRCM IO Keerthy

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