linux-kernel - Re: [PATCH 09/17] phy: samsung-ufs: use exynos_get_pmu_regmap_by

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Date: Fri, 05 Apr 2024 08:04:44 +0100
From: André Draszik <andre.draszik@...aro.org>
To: Peter Griffin <peter.griffin@...aro.org>, mturquette@...libre.com, 
 sboyd@...nel.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
  vkoul@...nel.org, kishon@...nel.org, alim.akhtar@...sung.com,
 avri.altman@....com,  bvanassche@....org, s.nawrocki@...sung.com,
 cw00.choi@...sung.com,  jejb@...ux.ibm.com, martin.petersen@...cle.com,
 chanho61.park@...sung.com,  ebiggers@...nel.org
Cc: linux-scsi@...r.kernel.org, linux-phy@...ts.infradead.org, 
	devicetree@...r.kernel.org, linux-clk@...r.kernel.org, 
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, tudor.ambarus@...aro.org, 
	saravanak@...gle.com, willmcvicker@...gle.com
Subject: Re: [PATCH 09/17] phy: samsung-ufs: use
 exynos_get_pmu_regmap_by_phandle() to obtain PMU regmap

On Thu, 2024-04-04 at 13:25 +0100, Peter Griffin wrote:
> This allows us to obtain a PMU regmap that is created by the exynos-pmu
> driver. Platforms such as gs101 require exynos-pmu created regmap to
> issue SMC calls for PMU register accesses. Existing platforms still get
> a MMIO regmap as before.
> 
> Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
> ---
>  drivers/phy/samsung/phy-samsung-ufs.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
> index 183c88e3d1ec..c567efafc30f 100644
> --- a/drivers/phy/samsung/phy-samsung-ufs.c
> +++ b/drivers/phy/samsung/phy-samsung-ufs.c
> @@ -18,6 +18,7 @@
>  #include <linux/phy/phy.h>
>  #include <linux/platform_device.h>
>  #include <linux/regmap.h>
> +#include <linux/soc/samsung/exynos-pmu.h>

You can now drop the include of linux/mfd/syscon.h

Once done, feel free to add

Reviewed-by: André Draszik <andre.draszik@...aro.org>

>  
>  #include "phy-samsung-ufs.h"
>  
> @@ -255,8 +256,8 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev)
>  		goto out;
>  	}
>  
> -	phy->reg_pmu = syscon_regmap_lookup_by_phandle(
> -				dev->of_node, "samsung,pmu-syscon");
> +	phy->reg_pmu = exynos_get_pmu_regmap_by_phandle(dev->of_node,
> +							"samsung,pmu-syscon");
>  	if (IS_ERR(phy->reg_pmu)) {
>  		err = PTR_ERR(phy->reg_pmu);
>  		dev_err(dev, "failed syscon remap for pmu\n");