Re: [PATCH v3 06/17] scsi: ufs: ufs-exynos: get sysreg regmap for io-coherency

[Rob Herring <robh@kernel.org>]

On Fri, Sep 17, 2021 at 03:54:25PM +0900, Chanho Park wrote:
> UFS_EMBD sharability register of fsys block provides "sharability"
> setting of ufs-exynos. It can be set via syscon and regmap.
> 
> Cc: Alim Akhtar <alim.akhtar@samsung.com>
> Cc: Kiwoong Kim <kwmad.kim@samsung.com>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
> Signed-off-by: Chanho Park <chanho61.park@samsung.com>
> ---
>  drivers/scsi/ufs/ufs-exynos.c | 5 +++++
>  drivers/scsi/ufs/ufs-exynos.h | 1 +
>  2 files changed, 6 insertions(+)

This patch is a nop... Fold it into the patch using sysreg.

> 
> diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
> index 8a17ba32a721..f7a1b99c823b 100644
> --- a/drivers/scsi/ufs/ufs-exynos.c
> +++ b/drivers/scsi/ufs/ufs-exynos.c
> @@ -12,6 +12,7 @@
>  #include <linux/module.h>
>  #include <linux/of.h>
>  #include <linux/of_address.h>
> +#include <linux/mfd/syscon.h>
>  #include <linux/phy/phy.h>
>  #include <linux/platform_device.h>
>  
> @@ -906,6 +907,10 @@ static int exynos_ufs_parse_dt(struct device *dev, struct exynos_ufs *ufs)
>  		goto out;
>  	}
>  
> +	ufs->sysreg = syscon_regmap_lookup_by_phandle(np, "sysreg");
> +	if (IS_ERR(ufs->sysreg))
> +		ufs->sysreg = NULL;
> +
>  	ufs->pclk_avail_min = PCLK_AVAIL_MIN;
>  	ufs->pclk_avail_max = PCLK_AVAIL_MAX;
>  
> diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
> index 2e72aabaa673..4f93db893ce8 100644
> --- a/drivers/scsi/ufs/ufs-exynos.h
> +++ b/drivers/scsi/ufs/ufs-exynos.h
> @@ -191,6 +191,7 @@ struct exynos_ufs {
>  	struct ufs_phy_time_cfg t_cfg;
>  	ktime_t entry_hibern8_t;
>  	const struct exynos_ufs_drv_data *drv_data;
> +	struct regmap *sysreg;
>  
>  	u32 opts;
>  #define EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL		BIT(0)
> -- 
> 2.33.0
> 
>