linux-kernel - Re: [PATCH 3/5] power: reset: brcmstb: Use syscon_regmap_lookup_by_phandle

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Message-ID: <5e397765-c87d-49a9-b06a-b0d601713317@broadcom.com>
Date: Sun, 16 Jun 2024 13:30:18 +0100
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: Andrew Davis <afd@...com>, Sebastian Reichel <sre@...nel.org>
Cc: Broadcom internal kernel review list
 <bcm-kernel-feedback-list@...adcom.com>, linux-pm@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] power: reset: brcmstb: Use
 syscon_regmap_lookup_by_phandle_args() helper



On 6/10/2024 3:28 PM, Andrew Davis wrote:
> Simplify probe by fetching the regmap and its arguments in one call.
> 
> Signed-off-by: Andrew Davis <afd@...com>
> ---
>   drivers/power/reset/brcmstb-reboot.c | 22 ++++------------------
>   1 file changed, 4 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/power/reset/brcmstb-reboot.c b/drivers/power/reset/brcmstb-reboot.c
> index db5b7120eadd0..94ea317f61ef4 100644
> --- a/drivers/power/reset/brcmstb-reboot.c
> +++ b/drivers/power/reset/brcmstb-reboot.c
> @@ -18,9 +18,6 @@
>   #include <linux/smp.h>
>   #include <linux/mfd/syscon.h>
>   
> -#define RESET_SOURCE_ENABLE_REG 1
> -#define SW_MASTER_RESET_REG 2
> -
>   static struct regmap *regmap;
>   static u32 rst_src_en;
>   static u32 sw_mstr_rst;
> @@ -87,6 +84,7 @@ static int brcmstb_reboot_probe(struct platform_device *pdev)
>   {
>   	int rc;
>   	struct device_node *np = pdev->dev.of_node;
> +	unsigned int args[2];
>   
>   	reset_masks = device_get_match_data(&pdev->dev);
>   	if (!reset_masks) {
> @@ -94,25 +92,13 @@ static int brcmstb_reboot_probe(struct platform_device *pdev)
>   		return -EINVAL;
>   	}
>   
> -	regmap = syscon_regmap_lookup_by_phandle(np, "syscon");
> +	regmap = syscon_regmap_lookup_by_phandle_args(np, "syscon", 2, args);

Not that this is likely to change, but I would use ARRAY_SIZE(args) 
here. With that:

Acked-by: Florian Fainelli <florian.fainelli@...adcom.com>
-- 
Florian

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