| Message ID | 20210917065436.145629-7-chanho61.park@samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | introduce exynosauto v9 ufs driver | expand |
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 > >
> > 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. I separated them to be reviewed easily by different maintainers. I'll squash them on next patchset. Best Regards, Chanho Park
On Thu, Sep 23, 2021 at 09:39:46AM +0900, Chanho Park wrote: > > > 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. > > I separated them to be reviewed easily by different maintainers. I'll squash > them on next patchset. Patch 14 is what this should be merged with. How is that a different maintainer? Rob
> > > This patch is a nop... Fold it into the patch using sysreg. > > > > I separated them to be reviewed easily by different maintainers. I'll > > squash them on next patchset. > > Patch 14 is what this should be merged with. How is that a different > maintainer? Ah, Okay. I got your point. I'd like to split them for getting some reviews from previous ufs-exynos driver owner before adding exynosautov9 ufs driver. 0006-scsi-ufs-ufs-exynos-get-sysreg-regmap-for-io-coheren.patch 0014-scsi-ufs-ufs-exynos-support-exynosauto-v9-ufs-driver.patch I think both patches can be squashed as you suggested. Best Regards, Chanho Park
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)
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(+)