| Message ID | 20240911100813.338-3-quic_mukhopad@quicinc.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | None | expand |
On Wed, Sep 11, 2024 at 03:38:10PM +0530, Soutrik Mukhopadhyay wrote: > In order to support different HW versions, introduce aux_cfg array > to move v4 specific aux configuration settings. > > Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com> > --- > drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------ > 1 file changed, 20 insertions(+), 14 deletions(-) > > diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c > index da2b32fb5b45..0f860a807d1b 100644 > --- a/drivers/phy/qualcomm/phy-qcom-edp.c > +++ b/drivers/phy/qualcomm/phy-qcom-edp.c > @@ -90,6 +90,7 @@ struct phy_ver_ops { > > struct qcom_edp_phy_cfg { > bool is_edp; > + u8 *aux_cfg; > const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg; > const struct phy_ver_ops *ver_ops; > }; > @@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = { > .pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3, > }; > > +static u8 edp_phy_aux_cfg_v4[10] = { > + 0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03 > +}; > + > static int qcom_edp_phy_init(struct phy *phy) > { > struct qcom_edp *edp = phy_get_drvdata(phy); > int ret; > - u8 cfg8; > > ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies); > if (ret) > @@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy) > * even needed. > */ > if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp) > - cfg8 = 0xb7; > - else > - cfg8 = 0x37; > + edp->cfg->aux_cfg[8] = 0xb7; If you have multiple instances of the eDP PHY they will all point to the same edp_phy_aux_cfg_v4[], so making instance-specific modifications to that array will not be okay. Make edp_phy_aux_cfg_v4[] const to reduce the likelihood for someone else to make this mistake in the future and make a local copy of the array on the stack so that you can modify it. Regards, Bjorn > > writel(0xfc, edp->edp + DP_PHY_MODE); > > - writel(0x00, edp->edp + DP_PHY_AUX_CFG0); > - writel(0x13, edp->edp + DP_PHY_AUX_CFG1); > - writel(0x24, edp->edp + DP_PHY_AUX_CFG2); > - writel(0x00, edp->edp + DP_PHY_AUX_CFG3); > - writel(0x0a, edp->edp + DP_PHY_AUX_CFG4); > - writel(0x26, edp->edp + DP_PHY_AUX_CFG5); > - writel(0x0a, edp->edp + DP_PHY_AUX_CFG6); > - writel(0x03, edp->edp + DP_PHY_AUX_CFG7); > - writel(cfg8, edp->edp + DP_PHY_AUX_CFG8); > - writel(0x03, edp->edp + DP_PHY_AUX_CFG9); > + writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0); > + writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1); > + writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2); > + writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3); > + writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4); > + writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5); > + writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6); > + writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7); > + writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8); > + writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9); > > writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK | > PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK | > @@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = { > }; > > static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = { > + .aux_cfg = edp_phy_aux_cfg_v4, > .ver_ops = &qcom_edp_phy_ops_v4, > }; > > static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = { > + .aux_cfg = edp_phy_aux_cfg_v4, > .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg, > .ver_ops = &qcom_edp_phy_ops_v4, > }; > > static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = { > .is_edp = true, > + .aux_cfg = edp_phy_aux_cfg_v4, > .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg, > .ver_ops = &qcom_edp_phy_ops_v4, > }; > @@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = { > }; > > static struct qcom_edp_phy_cfg x1e80100_phy_cfg = { > + .aux_cfg = edp_phy_aux_cfg_v4, > .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg, > .ver_ops = &qcom_edp_phy_ops_v6, > }; > -- > 2.17.1 >
On 9/11/2024 4:04 PM, Dmitry Baryshkov wrote: > On Wed, 11 Sept 2024 at 13:08, Soutrik Mukhopadhyay > <quic_mukhopad@quicinc.com> wrote: >> In order to support different HW versions, introduce aux_cfg array >> to move v4 specific aux configuration settings. >> >> Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com> >> --- >> drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------ >> 1 file changed, 20 insertions(+), 14 deletions(-) >> >> diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c >> index da2b32fb5b45..0f860a807d1b 100644 >> --- a/drivers/phy/qualcomm/phy-qcom-edp.c >> +++ b/drivers/phy/qualcomm/phy-qcom-edp.c >> @@ -90,6 +90,7 @@ struct phy_ver_ops { >> >> struct qcom_edp_phy_cfg { >> bool is_edp; >> + u8 *aux_cfg; >> const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg; >> const struct phy_ver_ops *ver_ops; >> }; >> @@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = { >> .pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3, >> }; >> >> +static u8 edp_phy_aux_cfg_v4[10] = { > static const u8, please. Sure, we will change this to "static const u8" in next version patch. > > >> + 0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03 >> +}; >> + >> static int qcom_edp_phy_init(struct phy *phy) >> { >> struct qcom_edp *edp = phy_get_drvdata(phy); >> int ret; >> - u8 cfg8; >> >> ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies); >> if (ret) >> @@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy) >> * even needed. >> */ >> if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp) >> - cfg8 = 0xb7; >> - else >> - cfg8 = 0x37; >> + edp->cfg->aux_cfg[8] = 0xb7; >> >> writel(0xfc, edp->edp + DP_PHY_MODE); >> >> - writel(0x00, edp->edp + DP_PHY_AUX_CFG0); >> - writel(0x13, edp->edp + DP_PHY_AUX_CFG1); >> - writel(0x24, edp->edp + DP_PHY_AUX_CFG2); >> - writel(0x00, edp->edp + DP_PHY_AUX_CFG3); >> - writel(0x0a, edp->edp + DP_PHY_AUX_CFG4); >> - writel(0x26, edp->edp + DP_PHY_AUX_CFG5); >> - writel(0x0a, edp->edp + DP_PHY_AUX_CFG6); >> - writel(0x03, edp->edp + DP_PHY_AUX_CFG7); >> - writel(cfg8, edp->edp + DP_PHY_AUX_CFG8); >> - writel(0x03, edp->edp + DP_PHY_AUX_CFG9); >> + writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0); >> + writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1); >> + writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2); >> + writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3); >> + writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4); >> + writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5); >> + writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6); >> + writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7); >> + writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8); >> + writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9); >> >> writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK | >> PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK | >> @@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = { >> }; >> >> static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = { >> + .aux_cfg = edp_phy_aux_cfg_v4, >> .ver_ops = &qcom_edp_phy_ops_v4, >> }; >> >> static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = { >> + .aux_cfg = edp_phy_aux_cfg_v4, >> .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg, >> .ver_ops = &qcom_edp_phy_ops_v4, >> }; >> >> static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = { >> .is_edp = true, >> + .aux_cfg = edp_phy_aux_cfg_v4, >> .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg, >> .ver_ops = &qcom_edp_phy_ops_v4, >> }; >> @@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = { >> }; >> >> static struct qcom_edp_phy_cfg x1e80100_phy_cfg = { >> + .aux_cfg = edp_phy_aux_cfg_v4, > Is this correct? Judging by ver_ops, X Elite uses v6 of the PHY, so > maybe it should also use v5 AUX tables? As per the current implementation, v6 uses v4 aux configuration, so we updated it to v4. > >> .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg, >> .ver_ops = &qcom_edp_phy_ops_v6, >> }; >> -- >> 2.17.1 >> > > -- > With best wishes > Dmitry
On 9/12/2024 7:15 AM, Bjorn Andersson wrote: > On Wed, Sep 11, 2024 at 03:38:10PM +0530, Soutrik Mukhopadhyay wrote: >> In order to support different HW versions, introduce aux_cfg array >> to move v4 specific aux configuration settings. >> >> Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com> >> --- >> drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------ >> 1 file changed, 20 insertions(+), 14 deletions(-) >> >> diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c >> index da2b32fb5b45..0f860a807d1b 100644 >> --- a/drivers/phy/qualcomm/phy-qcom-edp.c >> +++ b/drivers/phy/qualcomm/phy-qcom-edp.c >> @@ -90,6 +90,7 @@ struct phy_ver_ops { >> >> struct qcom_edp_phy_cfg { >> bool is_edp; >> + u8 *aux_cfg; >> const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg; >> const struct phy_ver_ops *ver_ops; >> }; >> @@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = { >> .pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3, >> }; >> >> +static u8 edp_phy_aux_cfg_v4[10] = { >> + 0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03 >> +}; >> + >> static int qcom_edp_phy_init(struct phy *phy) >> { >> struct qcom_edp *edp = phy_get_drvdata(phy); >> int ret; >> - u8 cfg8; >> >> ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies); >> if (ret) >> @@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy) >> * even needed. >> */ >> if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp) >> - cfg8 = 0xb7; >> - else >> - cfg8 = 0x37; >> + edp->cfg->aux_cfg[8] = 0xb7; > If you have multiple instances of the eDP PHY they will all point to the > same edp_phy_aux_cfg_v4[], so making instance-specific modifications > to that array will not be okay. > > > Make edp_phy_aux_cfg_v4[] const to reduce the likelihood for someone > else to make this mistake in the future and make a local copy of the > array on the stack so that you can modify it. > > Regards, > Bjorn Sure, we will change edp_phy_aux_cfg_v4[] to const and use local copy to modify it. > >> >> writel(0xfc, edp->edp + DP_PHY_MODE); >> >> - writel(0x00, edp->edp + DP_PHY_AUX_CFG0); >> - writel(0x13, edp->edp + DP_PHY_AUX_CFG1); >> - writel(0x24, edp->edp + DP_PHY_AUX_CFG2); >> - writel(0x00, edp->edp + DP_PHY_AUX_CFG3); >> - writel(0x0a, edp->edp + DP_PHY_AUX_CFG4); >> - writel(0x26, edp->edp + DP_PHY_AUX_CFG5); >> - writel(0x0a, edp->edp + DP_PHY_AUX_CFG6); >> - writel(0x03, edp->edp + DP_PHY_AUX_CFG7); >> - writel(cfg8, edp->edp + DP_PHY_AUX_CFG8); >> - writel(0x03, edp->edp + DP_PHY_AUX_CFG9); >> + writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0); >> + writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1); >> + writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2); >> + writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3); >> + writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4); >> + writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5); >> + writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6); >> + writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7); >> + writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8); >> + writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9); >> >> writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK | >> PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK | >> @@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = { >> }; >> >> static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = { >> + .aux_cfg = edp_phy_aux_cfg_v4, >> .ver_ops = &qcom_edp_phy_ops_v4, >> }; >> >> static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = { >> + .aux_cfg = edp_phy_aux_cfg_v4, >> .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg, >> .ver_ops = &qcom_edp_phy_ops_v4, >> }; >> >> static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = { >> .is_edp = true, >> + .aux_cfg = edp_phy_aux_cfg_v4, >> .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg, >> .ver_ops = &qcom_edp_phy_ops_v4, >> }; >> @@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = { >> }; >> >> static struct qcom_edp_phy_cfg x1e80100_phy_cfg = { >> + .aux_cfg = edp_phy_aux_cfg_v4, >> .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg, >> .ver_ops = &qcom_edp_phy_ops_v6, >> }; >> -- >> 2.17.1 >>
diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c index da2b32fb5b45..0f860a807d1b 100644 --- a/drivers/phy/qualcomm/phy-qcom-edp.c +++ b/drivers/phy/qualcomm/phy-qcom-edp.c @@ -90,6 +90,7 @@ struct phy_ver_ops { struct qcom_edp_phy_cfg { bool is_edp; + u8 *aux_cfg; const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg; const struct phy_ver_ops *ver_ops; }; @@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = { .pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3, }; +static u8 edp_phy_aux_cfg_v4[10] = { + 0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03 +}; + static int qcom_edp_phy_init(struct phy *phy) { struct qcom_edp *edp = phy_get_drvdata(phy); int ret; - u8 cfg8; ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies); if (ret) @@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy) * even needed. */ if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp) - cfg8 = 0xb7; - else - cfg8 = 0x37; + edp->cfg->aux_cfg[8] = 0xb7; writel(0xfc, edp->edp + DP_PHY_MODE); - writel(0x00, edp->edp + DP_PHY_AUX_CFG0); - writel(0x13, edp->edp + DP_PHY_AUX_CFG1); - writel(0x24, edp->edp + DP_PHY_AUX_CFG2); - writel(0x00, edp->edp + DP_PHY_AUX_CFG3); - writel(0x0a, edp->edp + DP_PHY_AUX_CFG4); - writel(0x26, edp->edp + DP_PHY_AUX_CFG5); - writel(0x0a, edp->edp + DP_PHY_AUX_CFG6); - writel(0x03, edp->edp + DP_PHY_AUX_CFG7); - writel(cfg8, edp->edp + DP_PHY_AUX_CFG8); - writel(0x03, edp->edp + DP_PHY_AUX_CFG9); + writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0); + writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1); + writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2); + writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3); + writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4); + writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5); + writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6); + writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7); + writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8); + writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9); writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK | PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK | @@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = { }; static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = { + .aux_cfg = edp_phy_aux_cfg_v4, .ver_ops = &qcom_edp_phy_ops_v4, }; static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = { + .aux_cfg = edp_phy_aux_cfg_v4, .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg, .ver_ops = &qcom_edp_phy_ops_v4, }; static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = { .is_edp = true, + .aux_cfg = edp_phy_aux_cfg_v4, .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg, .ver_ops = &qcom_edp_phy_ops_v4, }; @@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = { }; static struct qcom_edp_phy_cfg x1e80100_phy_cfg = { + .aux_cfg = edp_phy_aux_cfg_v4, .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg, .ver_ops = &qcom_edp_phy_ops_v6, };
In order to support different HW versions, introduce aux_cfg array to move v4 specific aux configuration settings. Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com> --- drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------ 1 file changed, 20 insertions(+), 14 deletions(-)