Separate the register access used for bus protection enable/disable into
their own functions. These will be used later for WAY_EN bits.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
---
drivers/soc/mediatek/mtk-pm-domains.c | 68 +++++++++++++++------------
1 file changed, 39 insertions(+), 29 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/mtk-pm-domains.c
index 4333cd297405..999e1f6c86b0 100644
--- a/drivers/soc/mediatek/mtk-pm-domains.c
+++ b/drivers/soc/mediatek/mtk-pm-domains.c
@@ -117,26 +117,50 @@ static int scpsys_sram_disable(struct scpsys_domain *pd)
MTK_POLL_TIMEOUT);
}
+static int scpsys_bus_protect_clear(const struct scpsys_bus_prot_data *bpd,
+ struct regmap *regmap)
+{
+ u32 val;
+ u32 sta_mask = bpd->bus_prot_sta_mask;
+
+ if (bpd->bus_prot_reg_update)
+ regmap_clear_bits(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask);
+ else
+ regmap_write(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask);
+
+ if (bpd->ignore_clr_ack)
+ return 0;
+
+ return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta,
+ val, !(val & sta_mask),
+ MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
+}
+
+static int scpsys_bus_protect_set(const struct scpsys_bus_prot_data *bpd,
+ struct regmap *regmap)
+{
+ u32 val;
+ u32 sta_mask = bpd->bus_prot_sta_mask;
+
+ if (bpd->bus_prot_reg_update)
+ regmap_set_bits(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask);
+ else
+ regmap_write(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask);
+
+ return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta,
+ val, (val & sta_mask) == sta_mask,
+ MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
+}
+
static int _scpsys_bus_protect_enable(const struct scpsys_bus_prot_data *bpd, struct regmap *regmap)
{
int i, ret;
for (i = 0; i < SPM_MAX_BUS_PROT_DATA; i++) {
- u32 val;
- u32 set_clr_mask = bpd[i].bus_prot_set_clr_mask;
- u32 sta_mask = bpd[i].bus_prot_sta_mask;
-
- if (!set_clr_mask)
+ if (!bpd[i].bus_prot_set_clr_mask)
break;
- if (bpd[i].bus_prot_reg_update)
- regmap_set_bits(regmap, bpd[i].bus_prot_set, set_clr_mask);
- else
- regmap_write(regmap, bpd[i].bus_prot_set, set_clr_mask);
-
- ret = regmap_read_poll_timeout(regmap, bpd[i].bus_prot_sta,
- val, (val & sta_mask) == sta_mask,
- MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
+ ret = scpsys_bus_protect_set(&bpd[i], regmap);
if (ret)
return ret;
}
@@ -161,24 +185,10 @@ static int _scpsys_bus_protect_disable(const struct scpsys_bus_prot_data *bpd,
int i, ret;
for (i = SPM_MAX_BUS_PROT_DATA - 1; i >= 0; i--) {
- u32 val;
- u32 set_clr_mask = bpd[i].bus_prot_set_clr_mask;
- u32 sta_mask = bpd[i].bus_prot_sta_mask;
-
- if (!set_clr_mask)
- continue;
-
- if (bpd[i].bus_prot_reg_update)
- regmap_clear_bits(regmap, bpd[i].bus_prot_clr, set_clr_mask);
- else
- regmap_write(regmap, bpd[i].bus_prot_clr, set_clr_mask);
-
- if (bpd[i].ignore_clr_ack)
+ if (!bpd[i].bus_prot_set_clr_mask)
continue;
- ret = regmap_read_poll_timeout(regmap, bpd[i].bus_prot_sta,
- val, !(val & sta_mask),
- MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
+ ret = scpsys_bus_protect_clear(&bpd[i], regmap);
if (ret)
return ret;
}
--
2.39.0
On 05/01/2023 18:07, Markus Schneider-Pargmann wrote: > Separate the register access used for bus protection enable/disable into > their own functions. These will be used later for WAY_EN bits. > > Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com> > --- > drivers/soc/mediatek/mtk-pm-domains.c | 68 +++++++++++++++------------ > 1 file changed, 39 insertions(+), 29 deletions(-) > > diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/mtk-pm-domains.c > index 4333cd297405..999e1f6c86b0 100644 > --- a/drivers/soc/mediatek/mtk-pm-domains.c > +++ b/drivers/soc/mediatek/mtk-pm-domains.c > @@ -117,26 +117,50 @@ static int scpsys_sram_disable(struct scpsys_domain *pd) > MTK_POLL_TIMEOUT); > } > > +static int scpsys_bus_protect_clear(const struct scpsys_bus_prot_data *bpd, > + struct regmap *regmap) > +{ > + u32 val; > + u32 sta_mask = bpd->bus_prot_sta_mask; > + > + if (bpd->bus_prot_reg_update) > + regmap_clear_bits(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask); > + else > + regmap_write(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask); > + > + if (bpd->ignore_clr_ack) > + return 0; > + > + return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta, > + val, !(val & sta_mask), > + MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > +} > + NIT: please move this function below static int scpsys_bus_protect_enable(struct scpsys_domain *pd) {...} This allows for better readability. > +static int scpsys_bus_protect_set(const struct scpsys_bus_prot_data *bpd, > + struct regmap *regmap) > +{ > + u32 val; > + u32 sta_mask = bpd->bus_prot_sta_mask; > + > + if (bpd->bus_prot_reg_update) > + regmap_set_bits(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask); > + else > + regmap_write(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask); > + > + return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta, > + val, (val & sta_mask) == sta_mask, > + MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > +} > + > static int _scpsys_bus_protect_enable(const struct scpsys_bus_prot_data *bpd, struct regmap *regmap) > { > int i, ret; > > for (i = 0; i < SPM_MAX_BUS_PROT_DATA; i++) { > - u32 val; > - u32 set_clr_mask = bpd[i].bus_prot_set_clr_mask; > - u32 sta_mask = bpd[i].bus_prot_sta_mask; > - > - if (!set_clr_mask) > + if (!bpd[i].bus_prot_set_clr_mask) > break; > > - if (bpd[i].bus_prot_reg_update) > - regmap_set_bits(regmap, bpd[i].bus_prot_set, set_clr_mask); > - else > - regmap_write(regmap, bpd[i].bus_prot_set, set_clr_mask); > - > - ret = regmap_read_poll_timeout(regmap, bpd[i].bus_prot_sta, > - val, (val & sta_mask) == sta_mask, > - MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > + ret = scpsys_bus_protect_set(&bpd[i], regmap); > if (ret) > return ret; > } > @@ -161,24 +185,10 @@ static int _scpsys_bus_protect_disable(const struct scpsys_bus_prot_data *bpd, > int i, ret; > > for (i = SPM_MAX_BUS_PROT_DATA - 1; i >= 0; i--) { > - u32 val; > - u32 set_clr_mask = bpd[i].bus_prot_set_clr_mask; > - u32 sta_mask = bpd[i].bus_prot_sta_mask; > - > - if (!set_clr_mask) > - continue; > - > - if (bpd[i].bus_prot_reg_update) > - regmap_clear_bits(regmap, bpd[i].bus_prot_clr, set_clr_mask); > - else > - regmap_write(regmap, bpd[i].bus_prot_clr, set_clr_mask); > - > - if (bpd[i].ignore_clr_ack) > + if (!bpd[i].bus_prot_set_clr_mask) > continue; > > - ret = regmap_read_poll_timeout(regmap, bpd[i].bus_prot_sta, > - val, !(val & sta_mask), > - MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > + ret = scpsys_bus_protect_clear(&bpd[i], regmap); > if (ret) > return ret; > }
Hi Matthias, On Fri, Feb 03, 2023 at 01:32:11PM +0100, Matthias Brugger wrote: > > > On 05/01/2023 18:07, Markus Schneider-Pargmann wrote: > > Separate the register access used for bus protection enable/disable into > > their own functions. These will be used later for WAY_EN bits. > > > > Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com> > > --- > > drivers/soc/mediatek/mtk-pm-domains.c | 68 +++++++++++++++------------ > > 1 file changed, 39 insertions(+), 29 deletions(-) > > > > diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/mtk-pm-domains.c > > index 4333cd297405..999e1f6c86b0 100644 > > --- a/drivers/soc/mediatek/mtk-pm-domains.c > > +++ b/drivers/soc/mediatek/mtk-pm-domains.c > > @@ -117,26 +117,50 @@ static int scpsys_sram_disable(struct scpsys_domain *pd) > > MTK_POLL_TIMEOUT); > > } > > +static int scpsys_bus_protect_clear(const struct scpsys_bus_prot_data *bpd, > > + struct regmap *regmap) > > +{ > > + u32 val; > > + u32 sta_mask = bpd->bus_prot_sta_mask; > > + > > + if (bpd->bus_prot_reg_update) > > + regmap_clear_bits(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask); > > + else > > + regmap_write(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask); > > + > > + if (bpd->ignore_clr_ack) > > + return 0; > > + > > + return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta, > > + val, !(val & sta_mask), > > + MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > > +} > > + > > NIT: please move this function below > static int scpsys_bus_protect_enable(struct scpsys_domain *pd) {...} > > This allows for better readability. With the WAY_EN patch later in this series scpsys_bus_protect_enable() is going to use scpsys_bus_protect_clear(). So I would need to add a signature in that patch for scpsys_bus_protect_clear() or move it back up. I would prefer to avoid adding a signature or moving so I added it above these functions here. I could swap scpsys_bus_protect_set() and scpscpsys_bus_protect_clear() if that helps readability. Thank you, Markus > > > +static int scpsys_bus_protect_set(const struct scpsys_bus_prot_data *bpd, > > + struct regmap *regmap) > > +{ > > + u32 val; > > + u32 sta_mask = bpd->bus_prot_sta_mask; > > + > > + if (bpd->bus_prot_reg_update) > > + regmap_set_bits(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask); > > + else > > + regmap_write(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask); > > + > > + return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta, > > + val, (val & sta_mask) == sta_mask, > > + MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > > +} > > + > > static int _scpsys_bus_protect_enable(const struct scpsys_bus_prot_data *bpd, struct regmap *regmap) > > { > > int i, ret; > > for (i = 0; i < SPM_MAX_BUS_PROT_DATA; i++) { > > - u32 val; > > - u32 set_clr_mask = bpd[i].bus_prot_set_clr_mask; > > - u32 sta_mask = bpd[i].bus_prot_sta_mask; > > - > > - if (!set_clr_mask) > > + if (!bpd[i].bus_prot_set_clr_mask) > > break; > > - if (bpd[i].bus_prot_reg_update) > > - regmap_set_bits(regmap, bpd[i].bus_prot_set, set_clr_mask); > > - else > > - regmap_write(regmap, bpd[i].bus_prot_set, set_clr_mask); > > - > > - ret = regmap_read_poll_timeout(regmap, bpd[i].bus_prot_sta, > > - val, (val & sta_mask) == sta_mask, > > - MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > > + ret = scpsys_bus_protect_set(&bpd[i], regmap); > > if (ret) > > return ret; > > } > > @@ -161,24 +185,10 @@ static int _scpsys_bus_protect_disable(const struct scpsys_bus_prot_data *bpd, > > int i, ret; > > for (i = SPM_MAX_BUS_PROT_DATA - 1; i >= 0; i--) { > > - u32 val; > > - u32 set_clr_mask = bpd[i].bus_prot_set_clr_mask; > > - u32 sta_mask = bpd[i].bus_prot_sta_mask; > > - > > - if (!set_clr_mask) > > - continue; > > - > > - if (bpd[i].bus_prot_reg_update) > > - regmap_clear_bits(regmap, bpd[i].bus_prot_clr, set_clr_mask); > > - else > > - regmap_write(regmap, bpd[i].bus_prot_clr, set_clr_mask); > > - > > - if (bpd[i].ignore_clr_ack) > > + if (!bpd[i].bus_prot_set_clr_mask) > > continue; > > - ret = regmap_read_poll_timeout(regmap, bpd[i].bus_prot_sta, > > - val, !(val & sta_mask), > > - MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); > > + ret = scpsys_bus_protect_clear(&bpd[i], regmap); > > if (ret) > > return ret; > > }
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