| Message ID | 1521662593-25468-4-git-send-email-giulio.benetti@micronovasrl.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi, Le mercredi 21 mars 2018 à 21:03 +0100, Giulio Benetti a écrit : > The A20 supports RGB888 with H/V sync from LCD0. Add a pinmux setting > for the needed pins. > > Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> > --- > arch/arm/boot/dts/sun7i-a20.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi > b/arch/arm/boot/dts/sun7i-a20.dtsi > index efb5607..bfe6728 100644 > --- a/arch/arm/boot/dts/sun7i-a20.dtsi > +++ b/arch/arm/boot/dts/sun7i-a20.dtsi > @@ -922,6 +922,14 @@ > pins = "PI20", "PI21"; > function = "uart7"; > }; > + > + lcd0_rgb888_pins: lcd0-rgb888-pins { It would be more consistent with other pins definitions to have underscores in both names and to indicate the index, such as: lcd0_rgb888_pins: lcd0_rgb888_pins@0 { This way, other set of pins for LCD (PH0-PH27) can be declared as @1 when they are needed in the future. > + pins = "PD0", "PD1", "PD2", "PD3", > "PD4", "PD5", "PD6", "PD7", > + "PD8", "PD9", "PD10", "PD11", > "PD12", "PD13", "PD14", "PD15", > + "PD16", "PD17", "PD18", > "PD19", "PD20", "PD21", "PD22", "PD23", > + "PD24", "PD25", "PD26", > "PD27"; > + function = "lcd0"; > + }; > }; > > timer@1c20c00 {
Hi, On Sun, Mar 25, 2018 at 04:09:13PM +0200, Paul Kocialkowski wrote: > Le mercredi 21 mars 2018 à 21:03 +0100, Giulio Benetti a écrit : > > The A20 supports RGB888 with H/V sync from LCD0. Add a pinmux setting > > for the needed pins. > > > > Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> > > --- > > arch/arm/boot/dts/sun7i-a20.dtsi | 8 ++++++++ > > 1 file changed, 8 insertions(+) > > > > diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi > > b/arch/arm/boot/dts/sun7i-a20.dtsi > > index efb5607..bfe6728 100644 > > --- a/arch/arm/boot/dts/sun7i-a20.dtsi > > +++ b/arch/arm/boot/dts/sun7i-a20.dtsi > > @@ -922,6 +922,14 @@ > > pins = "PI20", "PI21"; > > function = "uart7"; > > }; > > + > > + lcd0_rgb888_pins: lcd0-rgb888-pins { > > It would be more consistent with other pins definitions to have > underscores in both names and to indicate the index, such as: > lcd0_rgb888_pins: lcd0_rgb888_pins@0 { Both your suggestions will generate DTC warnings, and we'd like to get rid of them eventually :) > This way, other set of pins for LCD (PH0-PH27) can be declared as @1 > when they are needed in the future. A better idea would be to call it lcd0-rgb888-pd-pins, and introduce the ph variant when it's done. Maxime
Hi, Il 26/03/2018 12:01, Maxime Ripard ha scritto: > Hi, > > On Sun, Mar 25, 2018 at 04:09:13PM +0200, Paul Kocialkowski wrote: >> Le mercredi 21 mars 2018 à 21:03 +0100, Giulio Benetti a écrit : >>> The A20 supports RGB888 with H/V sync from LCD0. Add a pinmux setting >>> for the needed pins. >>> >>> Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> >>> --- >>> arch/arm/boot/dts/sun7i-a20.dtsi | 8 ++++++++ >>> 1 file changed, 8 insertions(+) >>> >>> diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi >>> b/arch/arm/boot/dts/sun7i-a20.dtsi >>> index efb5607..bfe6728 100644 >>> --- a/arch/arm/boot/dts/sun7i-a20.dtsi >>> +++ b/arch/arm/boot/dts/sun7i-a20.dtsi >>> @@ -922,6 +922,14 @@ >>> pins = "PI20", "PI21"; >>> function = "uart7"; >>> }; >>> + >>> + lcd0_rgb888_pins: lcd0-rgb888-pins { >> >> It would be more consistent with other pins definitions to have >> underscores in both names and to indicate the index, such as: >> lcd0_rgb888_pins: lcd0_rgb888_pins@0 { > > Both your suggestions will generate DTC warnings, and we'd like to get > rid of them eventually :) > >> This way, other set of pins for LCD (PH0-PH27) can be declared as @1 >> when they are needed in the future. > > A better idea would be to call it lcd0-rgb888-pd-pins, and introduce > the ph variant when it's done. As I know, only PD is muxed with LCD0. And PH is for LCD1 only. And LCD0 seems to come out only from PD port according to datasheet, this is why I didn't put @0 after lcd0-rgb888-pins. So I don't think it makes sense to handle pins in the way Paul suggests. What do you all think? Giulio > > Maxime > > >
On Mon, Mar 26, 2018 at 01:27:05PM +0200, Giulio Benetti wrote: > Hi, > > Il 26/03/2018 12:01, Maxime Ripard ha scritto: > > Hi, > > > > On Sun, Mar 25, 2018 at 04:09:13PM +0200, Paul Kocialkowski wrote: > > > Le mercredi 21 mars 2018 à 21:03 +0100, Giulio Benetti a écrit : > > > > The A20 supports RGB888 with H/V sync from LCD0. Add a pinmux setting > > > > for the needed pins. > > > > > > > > Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> > > > > --- > > > > arch/arm/boot/dts/sun7i-a20.dtsi | 8 ++++++++ > > > > 1 file changed, 8 insertions(+) > > > > > > > > diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi > > > > b/arch/arm/boot/dts/sun7i-a20.dtsi > > > > index efb5607..bfe6728 100644 > > > > --- a/arch/arm/boot/dts/sun7i-a20.dtsi > > > > +++ b/arch/arm/boot/dts/sun7i-a20.dtsi > > > > @@ -922,6 +922,14 @@ > > > > pins = "PI20", "PI21"; > > > > function = "uart7"; > > > > }; > > > > + > > > > + lcd0_rgb888_pins: lcd0-rgb888-pins { > > > > > > It would be more consistent with other pins definitions to have > > > underscores in both names and to indicate the index, such as: > > > lcd0_rgb888_pins: lcd0_rgb888_pins@0 { > > > > Both your suggestions will generate DTC warnings, and we'd like to get > > rid of them eventually :) > > > > > This way, other set of pins for LCD (PH0-PH27) can be declared as @1 > > > when they are needed in the future. > > > > A better idea would be to call it lcd0-rgb888-pd-pins, and introduce > > the ph variant when it's done. > > As I know, only PD is muxed with LCD0. > And PH is for LCD1 only. > > And LCD0 seems to come out only from PD port according to datasheet, > this is why I didn't put @0 after lcd0-rgb888-pins. > > So I don't think it makes sense to handle pins in the way Paul suggests. > > What do you all think? y That seems sensible in this case, yes. Maxime
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi index efb5607..bfe6728 100644 --- a/arch/arm/boot/dts/sun7i-a20.dtsi +++ b/arch/arm/boot/dts/sun7i-a20.dtsi @@ -922,6 +922,14 @@ pins = "PI20", "PI21"; function = "uart7"; }; + + lcd0_rgb888_pins: lcd0-rgb888-pins { + pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", + "PD8", "PD9", "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", + "PD16", "PD17", "PD18", "PD19", "PD20", "PD21", "PD22", "PD23", + "PD24", "PD25", "PD26", "PD27"; + function = "lcd0"; + }; }; timer@1c20c00 {
The A20 supports RGB888 with H/V sync from LCD0. Add a pinmux setting for the needed pins. Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> --- arch/arm/boot/dts/sun7i-a20.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)