| Message ID | 1576224695-22657-4-git-send-email-stanley.chu@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | scsi: ufs-mediatek: provide power management | expand |
On Fri, Dec 13, 2019 at 3:04 PM Stanley Chu <stanley.chu@mediatek.com> wrote: > > Configure customized auto-hibern8 timer in MediaTek Chipsets. > > Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> > --- > drivers/scsi/ufs/ufs-mediatek.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c > index 690483c78212..71e2e0e4ea11 100644 > --- a/drivers/scsi/ufs/ufs-mediatek.c > +++ b/drivers/scsi/ufs/ufs-mediatek.c > @@ -7,6 +7,7 @@ > */ > > #include <linux/arm-smccc.h> > +#include <linux/bitfield.h> > #include <linux/of.h> > #include <linux/of_address.h> > #include <linux/phy/phy.h> > @@ -300,6 +301,13 @@ static int ufs_mtk_post_link(struct ufs_hba *hba) > /* enable unipro clock gating feature */ > ufs_mtk_cfg_unipro_cg(hba, true); > > + /* configure auto-hibern8 timer to 10ms */ > + if (ufshcd_is_auto_hibern8_supported(hba)) { > + ufshcd_auto_hibern8_update(hba, > + FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 10) | > + FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3)); > + } > + > return 0; > } > > -- > 2.18.0
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 690483c78212..71e2e0e4ea11 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -7,6 +7,7 @@ */ #include <linux/arm-smccc.h> +#include <linux/bitfield.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/phy/phy.h> @@ -300,6 +301,13 @@ static int ufs_mtk_post_link(struct ufs_hba *hba) /* enable unipro clock gating feature */ ufs_mtk_cfg_unipro_cg(hba, true); + /* configure auto-hibern8 timer to 10ms */ + if (ufshcd_is_auto_hibern8_supported(hba)) { + ufshcd_auto_hibern8_update(hba, + FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 10) | + FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3)); + } + return 0; }
Configure customized auto-hibern8 timer in MediaTek Chipsets. Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> --- drivers/scsi/ufs/ufs-mediatek.c | 8 ++++++++ 1 file changed, 8 insertions(+)