From: Matthias Kaehlcke <mka@chromium.org> To: Sankeerth Billakanti <quic_sbillaka@quicinc.com> Cc: quic_kalyant@quicinc.com, devicetree@vger.kernel.org, dianders@chromium.org, sam@ravnborg.org, krzysztof.kozlowski@canonical.com, airlied@linux.ie, linux-arm-msm@vger.kernel.org, quic_khsieh@quicinc.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, bjorn.andersson@linaro.org, quic_abhinavk@quicinc.com, robh+dt@kernel.org, agross@kernel.org, seanpaul@chromium.org, thierry.reding@gmail.com, swboyd@chromium.org, freedreno@lists.freedesktop.org, quic_mkrishn@quicinc.com Subject: Re: [PATCH v2 2/4] arm64: dts: qcom: sc7280: Add support for eDP panel on CRD Date: Tue, 8 Feb 2022 14:23:43 -0800 [thread overview] Message-ID: <YgLtb8NCGKDi2uh4@google.com> (raw) In-Reply-To: <1644333525-30920-3-git-send-email-quic_sbillaka@quicinc.com> On Tue, Feb 08, 2022 at 08:48:43PM +0530, Sankeerth Billakanti wrote: > Enable the eDP display panel support without HPD on sc7280 platform. > > Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com> > --- > > Changes in v2: > - sort node references alphabetically > - improve readability > - move the pwm pinctrl to pwm node > - move the regulators to root > - define backlight power > - remove dummy regulator node > - cleanup pinctrl definitions > > arch/arm64/boot/dts/qcom/sc7280-crd.dts | 122 ++++++++++++++++++++++++++++++++ > arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 - > 2 files changed, 122 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/sc7280-crd.dts b/arch/arm64/boot/dts/qcom/sc7280-crd.dts > index e2efbdd..bff2707 100644 > --- a/arch/arm64/boot/dts/qcom/sc7280-crd.dts > +++ b/arch/arm64/boot/dts/qcom/sc7280-crd.dts > @@ -21,6 +21,34 @@ > chosen { > stdout-path = "serial0:115200n8"; > }; > + > + backlight_power: backlight-power { nit: the other fixed regulator in sc7280-idp.dtsi is called 'nvme_3v3_regulator', if you wanted to be consistent you could call this backlight_3v3_regulator. > + compatible = "regulator-fixed"; > + regulator-name = "backlight_power"; > + > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + > + gpio = <&pm8350c_gpios 7 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&edp_bl_power>; > + }; > + > + edp_power: edp-power { nit: see above > + compatible = "regulator-fixed"; > + regulator-name = "edp_power"; > + > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + > + gpio = <&tlmm 80 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&edp_panel_power>; > + }; > }; > > &apps_rsc { > @@ -76,6 +104,42 @@ ap_ts_pen_1v8: &i2c13 { > }; > }; > > +&edp_out { > + remote-endpoint = <&edp_panel_in>; > +}; > + > +&mdss { > + status = "okay"; > +}; > + > +&mdss_edp { > + status = "okay"; > + > + vdda-1p2-supply = <&vreg_l6b_1p2>; > + vdda-0p9-supply = <&vreg_l10c_0p8>; > +}; > + > +&mdss_edp_phy { > + status = "okay"; > + > + vdda-1p2-supply = <&vreg_l6b_1p2>; > + vdda-0p9-supply = <&vreg_l10c_0p8>; > +}; > + > +&mdss_dp { should be before 'mdss_edp'. > + status = "okay"; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&dp_hot_plug_det>; > + data-lanes = <0 1>; > + vdda-1p2-supply = <&vreg_l6b_1p2>; > + vdda-0p9-supply = <&vreg_l1b_0p8>; > +}; > + > +&mdss_mdp { > + status = "okay"; > +}; > + > &nvme_3v3_regulator { > gpio = <&tlmm 51 GPIO_ACTIVE_HIGH>; > }; > @@ -84,7 +148,65 @@ ap_ts_pen_1v8: &i2c13 { > pins = "gpio51"; > }; > > +&pm8350c_pwm { > + status = "okay"; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&edp_bl_pwm>; > +}; > + > +&pm8350c_gpios { should be before 'pm8350c_pwm' > + edp_bl_power: edp-bl-power { > + pins = "gpio7"; > + function = "normal"; > + qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>; > + bias-disable; > + output-low; > + }; > + > + edp_bl_pwm: edp-bl-pwm { > + pins = "gpio8"; > + function = "func1"; > + qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>; > + bias-disable; > + output-low; > + }; > +}; > + > +&soc { > + edp_backlight: edp-backlight { > + compatible = "pwm-backlight"; > + > + power-supply = <&backlight_power>; > + pwms = <&pm8350c_pwm 3 65535>; > + }; > + > + edp_panel: edp_panel { in difference to labels node names should use dashes as separator, not underscores (i.e. 'edp-panel') > + compatible = "sharp,lq140m1jw46"; > + > + power-supply = <&edp_power>; > + backlight = <&edp_backlight>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + port@0 { > + reg = <0>; > + edp_panel_in: endpoint { > + remote-endpoint = <&edp_out>; > + }; > + }; > + }; > + }; > +}; > + > &tlmm { > + edp_panel_power: edp-panel-power { > + pins = "gpio80"; > + function = "gpio"; > + bias-pull-down; > + }; > + > tp_int_odl: tp-int-odl { > pins = "gpio7"; > function = "gpio"; > diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi > index 3572399..f8fa716 100644 > --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi > +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi > @@ -3012,8 +3012,6 @@ > > mdss_edp: edp@aea0000 { > compatible = "qcom,sc7280-edp"; > - pinctrl-names = "default"; > - pinctrl-0 = <&edp_hot_plug_det>; This was just added a few days ago by commit 118cd3b8ec0d ("arm64: dts: qcom: sc7280: Add edp_out port and HPD lines"). The patch assumes that the 'Hot Plug Detect line (which functions as "panel ready" in eDP) is highly likely to be used by boards.'. If that is indeed the case and the CRD is the exception then it seems that deleting the two properties from the CRD DT would be a better solution.
WARNING: multiple messages have this Message-ID (diff)
From: Matthias Kaehlcke <mka@chromium.org> To: Sankeerth Billakanti <quic_sbillaka@quicinc.com> Cc: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, agross@kernel.org, bjorn.andersson@linaro.org, robh+dt@kernel.org, robdclark@gmail.com, seanpaul@chromium.org, swboyd@chromium.org, dianders@chromium.org, krzysztof.kozlowski@canonical.com, thierry.reding@gmail.com, sam@ravnborg.org, airlied@linux.ie, daniel@ffwll.ch, quic_kalyant@quicinc.com, quic_abhinavk@quicinc.com, quic_khsieh@quicinc.com, quic_mkrishn@quicinc.com Subject: Re: [PATCH v2 2/4] arm64: dts: qcom: sc7280: Add support for eDP panel on CRD Date: Tue, 8 Feb 2022 14:23:43 -0800 [thread overview] Message-ID: <YgLtb8NCGKDi2uh4@google.com> (raw) In-Reply-To: <1644333525-30920-3-git-send-email-quic_sbillaka@quicinc.com> On Tue, Feb 08, 2022 at 08:48:43PM +0530, Sankeerth Billakanti wrote: > Enable the eDP display panel support without HPD on sc7280 platform. > > Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com> > --- > > Changes in v2: > - sort node references alphabetically > - improve readability > - move the pwm pinctrl to pwm node > - move the regulators to root > - define backlight power > - remove dummy regulator node > - cleanup pinctrl definitions > > arch/arm64/boot/dts/qcom/sc7280-crd.dts | 122 ++++++++++++++++++++++++++++++++ > arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 - > 2 files changed, 122 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/sc7280-crd.dts b/arch/arm64/boot/dts/qcom/sc7280-crd.dts > index e2efbdd..bff2707 100644 > --- a/arch/arm64/boot/dts/qcom/sc7280-crd.dts > +++ b/arch/arm64/boot/dts/qcom/sc7280-crd.dts > @@ -21,6 +21,34 @@ > chosen { > stdout-path = "serial0:115200n8"; > }; > + > + backlight_power: backlight-power { nit: the other fixed regulator in sc7280-idp.dtsi is called 'nvme_3v3_regulator', if you wanted to be consistent you could call this backlight_3v3_regulator. > + compatible = "regulator-fixed"; > + regulator-name = "backlight_power"; > + > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + > + gpio = <&pm8350c_gpios 7 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&edp_bl_power>; > + }; > + > + edp_power: edp-power { nit: see above > + compatible = "regulator-fixed"; > + regulator-name = "edp_power"; > + > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + > + gpio = <&tlmm 80 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&edp_panel_power>; > + }; > }; > > &apps_rsc { > @@ -76,6 +104,42 @@ ap_ts_pen_1v8: &i2c13 { > }; > }; > > +&edp_out { > + remote-endpoint = <&edp_panel_in>; > +}; > + > +&mdss { > + status = "okay"; > +}; > + > +&mdss_edp { > + status = "okay"; > + > + vdda-1p2-supply = <&vreg_l6b_1p2>; > + vdda-0p9-supply = <&vreg_l10c_0p8>; > +}; > + > +&mdss_edp_phy { > + status = "okay"; > + > + vdda-1p2-supply = <&vreg_l6b_1p2>; > + vdda-0p9-supply = <&vreg_l10c_0p8>; > +}; > + > +&mdss_dp { should be before 'mdss_edp'. > + status = "okay"; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&dp_hot_plug_det>; > + data-lanes = <0 1>; > + vdda-1p2-supply = <&vreg_l6b_1p2>; > + vdda-0p9-supply = <&vreg_l1b_0p8>; > +}; > + > +&mdss_mdp { > + status = "okay"; > +}; > + > &nvme_3v3_regulator { > gpio = <&tlmm 51 GPIO_ACTIVE_HIGH>; > }; > @@ -84,7 +148,65 @@ ap_ts_pen_1v8: &i2c13 { > pins = "gpio51"; > }; > > +&pm8350c_pwm { > + status = "okay"; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&edp_bl_pwm>; > +}; > + > +&pm8350c_gpios { should be before 'pm8350c_pwm' > + edp_bl_power: edp-bl-power { > + pins = "gpio7"; > + function = "normal"; > + qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>; > + bias-disable; > + output-low; > + }; > + > + edp_bl_pwm: edp-bl-pwm { > + pins = "gpio8"; > + function = "func1"; > + qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>; > + bias-disable; > + output-low; > + }; > +}; > + > +&soc { > + edp_backlight: edp-backlight { > + compatible = "pwm-backlight"; > + > + power-supply = <&backlight_power>; > + pwms = <&pm8350c_pwm 3 65535>; > + }; > + > + edp_panel: edp_panel { in difference to labels node names should use dashes as separator, not underscores (i.e. 'edp-panel') > + compatible = "sharp,lq140m1jw46"; > + > + power-supply = <&edp_power>; > + backlight = <&edp_backlight>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + port@0 { > + reg = <0>; > + edp_panel_in: endpoint { > + remote-endpoint = <&edp_out>; > + }; > + }; > + }; > + }; > +}; > + > &tlmm { > + edp_panel_power: edp-panel-power { > + pins = "gpio80"; > + function = "gpio"; > + bias-pull-down; > + }; > + > tp_int_odl: tp-int-odl { > pins = "gpio7"; > function = "gpio"; > diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi > index 3572399..f8fa716 100644 > --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi > +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi > @@ -3012,8 +3012,6 @@ > > mdss_edp: edp@aea0000 { > compatible = "qcom,sc7280-edp"; > - pinctrl-names = "default"; > - pinctrl-0 = <&edp_hot_plug_det>; This was just added a few days ago by commit 118cd3b8ec0d ("arm64: dts: qcom: sc7280: Add edp_out port and HPD lines"). The patch assumes that the 'Hot Plug Detect line (which functions as "panel ready" in eDP) is highly likely to be used by boards.'. If that is indeed the case and the CRD is the exception then it seems that deleting the two properties from the CRD DT would be a better solution.
next prev parent reply other threads:[~2022-02-08 22:23 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-02-08 15:18 [PATCH v2 0/4] Add support for the eDP panel on sc7280 CRD Sankeerth Billakanti 2022-02-08 15:18 ` Sankeerth Billakanti 2022-02-08 15:18 ` [PATCH v2 1/4] dt-bindings: display: simple: Add sharp LQ140M1JW46 panel Sankeerth Billakanti 2022-02-08 15:18 ` Sankeerth Billakanti 2022-02-08 15:18 ` [PATCH v2 2/4] arm64: dts: qcom: sc7280: Add support for eDP panel on CRD Sankeerth Billakanti 2022-02-08 15:18 ` Sankeerth Billakanti 2022-02-08 22:23 ` Matthias Kaehlcke [this message] 2022-02-08 22:23 ` Matthias Kaehlcke 2022-02-09 7:11 ` Sankeerth Billakanti (QUIC) 2022-02-09 7:11 ` Sankeerth Billakanti (QUIC) 2022-02-08 23:52 ` Bjorn Andersson 2022-02-08 23:52 ` Bjorn Andersson 2022-02-09 7:15 ` Sankeerth Billakanti (QUIC) 2022-02-09 7:15 ` Sankeerth Billakanti (QUIC) 2022-02-08 15:18 ` [PATCH v2 3/4] drm/panel-edp: Add eDP sharp panel support Sankeerth Billakanti 2022-02-08 15:18 ` Sankeerth Billakanti 2022-02-08 15:18 ` [PATCH v2 4/4] drm/msm/dp: Add driver support to utilize drm panel Sankeerth Billakanti 2022-02-08 15:18 ` Sankeerth Billakanti
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