mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

soc: mediatek: Refactor bus protection control 

Put bus protection enable and disable control in separate functions.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Weiyi Lu 2019-08-28 17:11:40 +08:00 committed by Matthias Brugger
parent 0545aa1b7a
commit 662c9d55c5
1 changed files with 30 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/soc/mediatek/mtk-scpsys.c
View File

@ -276,6 +276,30 @@ static int scpsys_sram_disable(struct scp_domain *scpd, void __iomem *ctl_addr)
MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT);
}
static int scpsys_bus_protect_enable(struct scp_domain *scpd)
{
struct scp *scp = scpd->scp;
if (!scpd->data->bus_prot_mask)
return 0;
return mtk_infracfg_set_bus_protection(scp->infracfg,
scpd->data->bus_prot_mask,
scp->bus_prot_reg_update);
}
static int scpsys_bus_protect_disable(struct scp_domain *scpd)
{
struct scp *scp = scpd->scp;
if (!scpd->data->bus_prot_mask)
return 0;
return mtk_infracfg_clear_bus_protection(scp->infracfg,
scpd->data->bus_prot_mask,
scp->bus_prot_reg_update);
}
static int scpsys_power_on(struct generic_pm_domain *genpd)
{
struct scp_domain *scpd = container_of(genpd, struct scp_domain, genpd);
@ -318,13 +342,9 @@ static int scpsys_power_on(struct generic_pm_domain *genpd)
if (ret < 0)
goto err_pwr_ack;
if (scpd->data->bus_prot_mask) {
ret = mtk_infracfg_clear_bus_protection(scp->infracfg,
scpd->data->bus_prot_mask,
scp->bus_prot_reg_update);
if (ret)
goto err_pwr_ack;
}
ret = scpsys_bus_protect_disable(scpd);
if (ret < 0)
goto err_pwr_ack;
return 0;
@ -346,13 +366,9 @@ static int scpsys_power_off(struct generic_pm_domain *genpd)
u32 val;
int ret, tmp;
if (scpd->data->bus_prot_mask) {
ret = mtk_infracfg_set_bus_protection(scp->infracfg,
scpd->data->bus_prot_mask,
scp->bus_prot_reg_update);
if (ret)
goto out;
}
ret = scpsys_bus_protect_enable(scpd);
if (ret < 0)
goto out;
ret = scpsys_sram_disable(scpd, ctl_addr);
if (ret < 0)