| Message ID | 1700729190-17268-8-git-send-email-quic_cang@quicinc.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Enable HS-G5 support on SM8550 | expand |
On Thu, Nov 23, 2023 at 12:46:27AM -0800, Can Guo wrote: > Set the initial PHY gear to max HS gear for hosts with HW ver 5 and newer. > MAX_GEAR will be used for hosts with hw_ver.major >= 4 > This patch is not changing any functionalities or logic but only a > preparation patch for the next patch in this series. > > Signed-off-by: Can Guo <quic_cang@quicinc.com> > --- > drivers/ufs/host/ufs-qcom.c | 21 +++++++++++++++------ > 1 file changed, 15 insertions(+), 6 deletions(-) > > diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c > index 6756f8d..7bbccf4 100644 > --- a/drivers/ufs/host/ufs-qcom.c > +++ b/drivers/ufs/host/ufs-qcom.c > @@ -1067,6 +1067,20 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) > hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; > } > > +static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) > +{ > + struct ufs_host_params *host_params = &host->host_params; > + > + host->phy_gear = host_params->hs_tx_gear; > + > + /* > + * Power up the PHY using the minimum supported gear (UFS_HS_G2). > + * Switching to max gear will be performed during reinit if supported. You need to reword this comment too. > + */ > + if (host->hw_ver.major < 0x5) As I mentioned above, MAX_GEAR will be used if hw_ver.major is >=4 in ufs_qcom_get_hs_gear(). So this check should be (< 0x4). - Mani > + host->phy_gear = UFS_HS_G2; > +} > + > static void ufs_qcom_set_host_params(struct ufs_hba *hba) > { > struct ufs_qcom_host *host = ufshcd_get_variant(hba); > @@ -1303,6 +1317,7 @@ static int ufs_qcom_init(struct ufs_hba *hba) > ufs_qcom_set_caps(hba); > ufs_qcom_advertise_quirks(hba); > ufs_qcom_set_host_params(hba); > + ufs_qcom_set_phy_gear(host); > > err = ufs_qcom_ice_init(host); > if (err) > @@ -1320,12 +1335,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) > dev_warn(dev, "%s: failed to configure the testbus %d\n", > __func__, err); > > - /* > - * Power up the PHY using the minimum supported gear (UFS_HS_G2). > - * Switching to max gear will be performed during reinit if supported. > - */ > - host->phy_gear = UFS_HS_G2; > - > return 0; > > out_variant_clear: > -- > 2.7.4 >
Hi Mani, On 11/28/2023 2:00 PM, Manivannan Sadhasivam wrote: > On Thu, Nov 23, 2023 at 12:46:27AM -0800, Can Guo wrote: >> Set the initial PHY gear to max HS gear for hosts with HW ver 5 and newer. >> > > MAX_GEAR will be used for hosts with hw_ver.major >= 4 I put it > 5 because I am not intent to touch any old targets which has proven working fine with starting with PHY gear HS_G2. If I put it >= 4, there would be many targets impacted by this change. I need to go back and test those platforms (HW ver == 4). Thanks, Can Guo. > >> This patch is not changing any functionalities or logic but only a >> preparation patch for the next patch in this series. >> >> Signed-off-by: Can Guo <quic_cang@quicinc.com> >> --- >> drivers/ufs/host/ufs-qcom.c | 21 +++++++++++++++------ >> 1 file changed, 15 insertions(+), 6 deletions(-) >> >> diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c >> index 6756f8d..7bbccf4 100644 >> --- a/drivers/ufs/host/ufs-qcom.c >> +++ b/drivers/ufs/host/ufs-qcom.c >> @@ -1067,6 +1067,20 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) >> hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; >> } >> >> +static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) >> +{ >> + struct ufs_host_params *host_params = &host->host_params; >> + >> + host->phy_gear = host_params->hs_tx_gear; >> + >> + /* >> + * Power up the PHY using the minimum supported gear (UFS_HS_G2). >> + * Switching to max gear will be performed during reinit if supported. > > You need to reword this comment too. > >> + */ >> + if (host->hw_ver.major < 0x5) > > As I mentioned above, MAX_GEAR will be used if hw_ver.major is >=4 in > ufs_qcom_get_hs_gear(). So this check should be (< 0x4). > > - Mani > >> + host->phy_gear = UFS_HS_G2; >> +} >> + >> static void ufs_qcom_set_host_params(struct ufs_hba *hba) >> { >> struct ufs_qcom_host *host = ufshcd_get_variant(hba); >> @@ -1303,6 +1317,7 @@ static int ufs_qcom_init(struct ufs_hba *hba) >> ufs_qcom_set_caps(hba); >> ufs_qcom_advertise_quirks(hba); >> ufs_qcom_set_host_params(hba); >> + ufs_qcom_set_phy_gear(host); >> >> err = ufs_qcom_ice_init(host); >> if (err) >> @@ -1320,12 +1335,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) >> dev_warn(dev, "%s: failed to configure the testbus %d\n", >> __func__, err); >> >> - /* >> - * Power up the PHY using the minimum supported gear (UFS_HS_G2). >> - * Switching to max gear will be performed during reinit if supported. >> - */ >> - host->phy_gear = UFS_HS_G2; >> - >> return 0; >> >> out_variant_clear: >> -- >> 2.7.4 >> >
On Tue, Nov 28, 2023 at 03:58:42PM +0800, Can Guo wrote: > Hi Mani, > > On 11/28/2023 2:00 PM, Manivannan Sadhasivam wrote: > > On Thu, Nov 23, 2023 at 12:46:27AM -0800, Can Guo wrote: > > > Set the initial PHY gear to max HS gear for hosts with HW ver 5 and newer. > > > > > > > MAX_GEAR will be used for hosts with hw_ver.major >= 4 > > I put it > 5 because I am not intent to touch any old targets which has > proven working fine with starting with PHY gear HS_G2. If I put it >= 4, > there would be many targets impacted by this change. I need to go back and > test those platforms (HW ver == 4). > This assumption will make the code hard to maintain. I think if you happen to test it on atleast a couple of old targets it should be good since I do not see how others can fail. - Mani > Thanks, > Can Guo. > > > > > > This patch is not changing any functionalities or logic but only a > > > preparation patch for the next patch in this series. > > > > > > Signed-off-by: Can Guo <quic_cang@quicinc.com> > > > --- > > > drivers/ufs/host/ufs-qcom.c | 21 +++++++++++++++------ > > > 1 file changed, 15 insertions(+), 6 deletions(-) > > > > > > diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c > > > index 6756f8d..7bbccf4 100644 > > > --- a/drivers/ufs/host/ufs-qcom.c > > > +++ b/drivers/ufs/host/ufs-qcom.c > > > @@ -1067,6 +1067,20 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) > > > hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; > > > } > > > +static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) > > > +{ > > > + struct ufs_host_params *host_params = &host->host_params; > > > + > > > + host->phy_gear = host_params->hs_tx_gear; > > > + > > > + /* > > > + * Power up the PHY using the minimum supported gear (UFS_HS_G2). > > > + * Switching to max gear will be performed during reinit if supported. > > > > You need to reword this comment too. > > > > > + */ > > > + if (host->hw_ver.major < 0x5) > > > > As I mentioned above, MAX_GEAR will be used if hw_ver.major is >=4 in > > ufs_qcom_get_hs_gear(). So this check should be (< 0x4). > > > > - Mani > > > > > + host->phy_gear = UFS_HS_G2; > > > +} > > > + > > > static void ufs_qcom_set_host_params(struct ufs_hba *hba) > > > { > > > struct ufs_qcom_host *host = ufshcd_get_variant(hba); > > > @@ -1303,6 +1317,7 @@ static int ufs_qcom_init(struct ufs_hba *hba) > > > ufs_qcom_set_caps(hba); > > > ufs_qcom_advertise_quirks(hba); > > > ufs_qcom_set_host_params(hba); > > > + ufs_qcom_set_phy_gear(host); > > > err = ufs_qcom_ice_init(host); > > > if (err) > > > @@ -1320,12 +1335,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) > > > dev_warn(dev, "%s: failed to configure the testbus %d\n", > > > __func__, err); > > > - /* > > > - * Power up the PHY using the minimum supported gear (UFS_HS_G2). > > > - * Switching to max gear will be performed during reinit if supported. > > > - */ > > > - host->phy_gear = UFS_HS_G2; > > > - > > > return 0; > > > out_variant_clear: > > > -- > > > 2.7.4 > > > > >
On 11/28/2023 6:59 PM, Manivannan Sadhasivam wrote: > On Tue, Nov 28, 2023 at 03:58:42PM +0800, Can Guo wrote: >> Hi Mani, >> >> On 11/28/2023 2:00 PM, Manivannan Sadhasivam wrote: >>> On Thu, Nov 23, 2023 at 12:46:27AM -0800, Can Guo wrote: >>>> Set the initial PHY gear to max HS gear for hosts with HW ver 5 and newer. >>>> >>> >>> MAX_GEAR will be used for hosts with hw_ver.major >= 4 >> >> I put it > 5 because I am not intent to touch any old targets which has >> proven working fine with starting with PHY gear HS_G2. If I put it >= 4, >> there would be many targets impacted by this change. I need to go back and >> test those platforms (HW ver == 4). >> > > This assumption will make the code hard to maintain. I think if you happen to > test it on atleast a couple of old targets it should be good since I do not see > how others can fail. Point taken. I will put it >= 4 in next version and test it on platforms like SM8350 and SM8450. Thanks, Can Guo. > > - Mani > >> Thanks, >> Can Guo. >> >>> >>>> This patch is not changing any functionalities or logic but only a >>>> preparation patch for the next patch in this series. >>>> >>>> Signed-off-by: Can Guo <quic_cang@quicinc.com> >>>> --- >>>> drivers/ufs/host/ufs-qcom.c | 21 +++++++++++++++------ >>>> 1 file changed, 15 insertions(+), 6 deletions(-) >>>> >>>> diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c >>>> index 6756f8d..7bbccf4 100644 >>>> --- a/drivers/ufs/host/ufs-qcom.c >>>> +++ b/drivers/ufs/host/ufs-qcom.c >>>> @@ -1067,6 +1067,20 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) >>>> hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; >>>> } >>>> +static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) >>>> +{ >>>> + struct ufs_host_params *host_params = &host->host_params; >>>> + >>>> + host->phy_gear = host_params->hs_tx_gear; >>>> + >>>> + /* >>>> + * Power up the PHY using the minimum supported gear (UFS_HS_G2). >>>> + * Switching to max gear will be performed during reinit if supported. >>> >>> You need to reword this comment too. >>> >>>> + */ >>>> + if (host->hw_ver.major < 0x5) >>> >>> As I mentioned above, MAX_GEAR will be used if hw_ver.major is >=4 in >>> ufs_qcom_get_hs_gear(). So this check should be (< 0x4). >>> >>> - Mani >>> >>>> + host->phy_gear = UFS_HS_G2; >>>> +} >>>> + >>>> static void ufs_qcom_set_host_params(struct ufs_hba *hba) >>>> { >>>> struct ufs_qcom_host *host = ufshcd_get_variant(hba); >>>> @@ -1303,6 +1317,7 @@ static int ufs_qcom_init(struct ufs_hba *hba) >>>> ufs_qcom_set_caps(hba); >>>> ufs_qcom_advertise_quirks(hba); >>>> ufs_qcom_set_host_params(hba); >>>> + ufs_qcom_set_phy_gear(host); >>>> err = ufs_qcom_ice_init(host); >>>> if (err) >>>> @@ -1320,12 +1335,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) >>>> dev_warn(dev, "%s: failed to configure the testbus %d\n", >>>> __func__, err); >>>> - /* >>>> - * Power up the PHY using the minimum supported gear (UFS_HS_G2). >>>> - * Switching to max gear will be performed during reinit if supported. >>>> - */ >>>> - host->phy_gear = UFS_HS_G2; >>>> - >>>> return 0; >>>> out_variant_clear: >>>> -- >>>> 2.7.4 >>>> >>> >
On Tue, Nov 28, 2023 at 07:01:27PM +0800, Can Guo wrote: > > > On 11/28/2023 6:59 PM, Manivannan Sadhasivam wrote: > > On Tue, Nov 28, 2023 at 03:58:42PM +0800, Can Guo wrote: > > > Hi Mani, > > > > > > On 11/28/2023 2:00 PM, Manivannan Sadhasivam wrote: > > > > On Thu, Nov 23, 2023 at 12:46:27AM -0800, Can Guo wrote: > > > > > Set the initial PHY gear to max HS gear for hosts with HW ver 5 and newer. > > > > > > > > > > > > > MAX_GEAR will be used for hosts with hw_ver.major >= 4 > > > > > > I put it > 5 because I am not intent to touch any old targets which has > > > proven working fine with starting with PHY gear HS_G2. If I put it >= 4, > > > there would be many targets impacted by this change. I need to go back and > > > test those platforms (HW ver == 4). > > > > > > > This assumption will make the code hard to maintain. I think if you happen to > > test it on atleast a couple of old targets it should be good since I do not see > > how others can fail. > > Point taken. I will put it >= 4 in next version and test it on platforms > like SM8350 and SM8450. > Appreciated, thanks! - Mani > Thanks, > Can Guo. > > > > > - Mani > > > > > Thanks, > > > Can Guo. > > > > > > > > > > > > This patch is not changing any functionalities or logic but only a > > > > > preparation patch for the next patch in this series. > > > > > > > > > > Signed-off-by: Can Guo <quic_cang@quicinc.com> > > > > > --- > > > > > drivers/ufs/host/ufs-qcom.c | 21 +++++++++++++++------ > > > > > 1 file changed, 15 insertions(+), 6 deletions(-) > > > > > > > > > > diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c > > > > > index 6756f8d..7bbccf4 100644 > > > > > --- a/drivers/ufs/host/ufs-qcom.c > > > > > +++ b/drivers/ufs/host/ufs-qcom.c > > > > > @@ -1067,6 +1067,20 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) > > > > > hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; > > > > > } > > > > > +static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) > > > > > +{ > > > > > + struct ufs_host_params *host_params = &host->host_params; > > > > > + > > > > > + host->phy_gear = host_params->hs_tx_gear; > > > > > + > > > > > + /* > > > > > + * Power up the PHY using the minimum supported gear (UFS_HS_G2). > > > > > + * Switching to max gear will be performed during reinit if supported. > > > > > > > > You need to reword this comment too. > > > > > > > > > + */ > > > > > + if (host->hw_ver.major < 0x5) > > > > > > > > As I mentioned above, MAX_GEAR will be used if hw_ver.major is >=4 in > > > > ufs_qcom_get_hs_gear(). So this check should be (< 0x4). > > > > > > > > - Mani > > > > > > > > > + host->phy_gear = UFS_HS_G2; > > > > > +} > > > > > + > > > > > static void ufs_qcom_set_host_params(struct ufs_hba *hba) > > > > > { > > > > > struct ufs_qcom_host *host = ufshcd_get_variant(hba); > > > > > @@ -1303,6 +1317,7 @@ static int ufs_qcom_init(struct ufs_hba *hba) > > > > > ufs_qcom_set_caps(hba); > > > > > ufs_qcom_advertise_quirks(hba); > > > > > ufs_qcom_set_host_params(hba); > > > > > + ufs_qcom_set_phy_gear(host); > > > > > err = ufs_qcom_ice_init(host); > > > > > if (err) > > > > > @@ -1320,12 +1335,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) > > > > > dev_warn(dev, "%s: failed to configure the testbus %d\n", > > > > > __func__, err); > > > > > - /* > > > > > - * Power up the PHY using the minimum supported gear (UFS_HS_G2). > > > > > - * Switching to max gear will be performed during reinit if supported. > > > > > - */ > > > > > - host->phy_gear = UFS_HS_G2; > > > > > - > > > > > return 0; > > > > > out_variant_clear: > > > > > -- > > > > > 2.7.4 > > > > > > > > > > >
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 6756f8d..7bbccf4 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1067,6 +1067,20 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; } +static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) +{ + struct ufs_host_params *host_params = &host->host_params; + + host->phy_gear = host_params->hs_tx_gear; + + /* + * Power up the PHY using the minimum supported gear (UFS_HS_G2). + * Switching to max gear will be performed during reinit if supported. + */ + if (host->hw_ver.major < 0x5) + host->phy_gear = UFS_HS_G2; +} + static void ufs_qcom_set_host_params(struct ufs_hba *hba) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); @@ -1303,6 +1317,7 @@ static int ufs_qcom_init(struct ufs_hba *hba) ufs_qcom_set_caps(hba); ufs_qcom_advertise_quirks(hba); ufs_qcom_set_host_params(hba); + ufs_qcom_set_phy_gear(host); err = ufs_qcom_ice_init(host); if (err) @@ -1320,12 +1335,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) dev_warn(dev, "%s: failed to configure the testbus %d\n", __func__, err); - /* - * Power up the PHY using the minimum supported gear (UFS_HS_G2). - * Switching to max gear will be performed during reinit if supported. - */ - host->phy_gear = UFS_HS_G2; - return 0; out_variant_clear:
Set the initial PHY gear to max HS gear for hosts with HW ver 5 and newer. This patch is not changing any functionalities or logic but only a preparation patch for the next patch in this series. Signed-off-by: Can Guo <quic_cang@quicinc.com> --- drivers/ufs/host/ufs-qcom.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-)