| Message ID | 20200810152219.6254-4-biju.das.jz@bp.renesas.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | Add optional regulator support for LVDS codec. | expand |
> Subject: [PATCH v2 3/3] ARM: dts: iwg20d-q7-common: Fix touch controller > probe failure > > As per the iWave RZ/G1M schematic, the signal LVDS_PPEN controls supply > voltage for touch panel, LVDS receiver and RGB LCD panel. Add regulator for > these device nodes and remove powerdown-gpios property from lvds- > receiver node as it results in touch controller driver probe failure. > > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> > --- > v1->v2 : Add regulator in touch panel, LVDS receiver and RGB LCD panel > device nodes > v1 : https://patchwork.kernel.org/patch/11705819/ > --- > arch/arm/boot/dts/iwg20d-q7-common.dtsi | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/arch/arm/boot/dts/iwg20d-q7-common.dtsi > b/arch/arm/boot/dts/iwg20d-q7-common.dtsi > index 4c8b9a6b0125..056f93119d8a 100644 > --- a/arch/arm/boot/dts/iwg20d-q7-common.dtsi > +++ b/arch/arm/boot/dts/iwg20d-q7-common.dtsi > @@ -57,6 +57,7 @@ > > lvds-receiver { > compatible = "ti,ds90cf384a", "lvds-decoder"; > +vcc-supply = <&vcc_3v3_tft1>; Sorry, will sent V3 for this patch, since it is missing removal of powerdown-gpios property. > ports { > #address-cells = <1>; > @@ -80,6 +81,7 @@ > panel { > compatible = "edt,etm0700g0dh6"; > backlight = <&lcd_backlight>; > +power-supply = <&vcc_3v3_tft1>; > > port { > panel_in: endpoint { > @@ -112,6 +114,17 @@ > }; > }; > > +vcc_3v3_tft1: regulator-panel { > +compatible = "regulator-fixed"; > + > +regulator-name = "Panel Vcc"; > +regulator-min-microvolt = <3300000>; > +regulator-max-microvolt = <3300000>; > +enable-active-high; > +startup-delay-us = <70000>; > +gpio = <&gpio7 25 GPIO_ACTIVE_HIGH>; > +}; > + > vcc_sdhi1: regulator-vcc-sdhi1 { > compatible = "regulator-fixed"; > > @@ -206,6 +219,7 @@ > reg = <0x38>; > interrupt-parent = <&gpio2>; > interrupts = <12 IRQ_TYPE_EDGE_FALLING>; > +vcc-supply = <&vcc_3v3_tft1>; > }; > }; > > -- > 2.17.1 Renesas Electronics Europe GmbH, Geschaeftsfuehrer/President: Carsten Jauch, Sitz der Gesellschaft/Registered office: Duesseldorf, Arcadiastrasse 10, 40472 Duesseldorf, Germany, Handelsregister/Commercial Register: Duesseldorf, HRB 3708 USt-IDNr./Tax identification no.: DE 119353406 WEEE-Reg.-Nr./WEEE reg. no.: DE 14978647
diff --git a/arch/arm/boot/dts/iwg20d-q7-common.dtsi b/arch/arm/boot/dts/iwg20d-q7-common.dtsi index 4c8b9a6b0125..056f93119d8a 100644 --- a/arch/arm/boot/dts/iwg20d-q7-common.dtsi +++ b/arch/arm/boot/dts/iwg20d-q7-common.dtsi @@ -57,6 +57,7 @@ lvds-receiver { compatible = "ti,ds90cf384a", "lvds-decoder"; + vcc-supply = <&vcc_3v3_tft1>; ports { #address-cells = <1>; @@ -80,6 +81,7 @@ panel { compatible = "edt,etm0700g0dh6"; backlight = <&lcd_backlight>; + power-supply = <&vcc_3v3_tft1>; port { panel_in: endpoint { @@ -112,6 +114,17 @@ }; }; + vcc_3v3_tft1: regulator-panel { + compatible = "regulator-fixed"; + + regulator-name = "Panel Vcc"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + enable-active-high; + startup-delay-us = <70000>; + gpio = <&gpio7 25 GPIO_ACTIVE_HIGH>; + }; + vcc_sdhi1: regulator-vcc-sdhi1 { compatible = "regulator-fixed"; @@ -206,6 +219,7 @@ reg = <0x38>; interrupt-parent = <&gpio2>; interrupts = <12 IRQ_TYPE_EDGE_FALLING>; + vcc-supply = <&vcc_3v3_tft1>; }; };
As per the iWave RZ/G1M schematic, the signal LVDS_PPEN controls supply voltage for touch panel, LVDS receiver and RGB LCD panel. Add regulator for these device nodes and remove powerdown-gpios property from lvds-receiver node as it results in touch controller driver probe failure. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> --- v1->v2 : Add regulator in touch panel, LVDS receiver and RGB LCD panel device nodes v1 : https://patchwork.kernel.org/patch/11705819/ --- arch/arm/boot/dts/iwg20d-q7-common.dtsi | 14 ++++++++++++++ 1 file changed, 14 insertions(+)