From mboxrd@z Thu Jan 1 00:00:00 1970 From: giulio.benetti@micronovasrl.com (Giulio Benetti) Date: Mon, 26 Mar 2018 13:27:05 +0200 Subject: [PATCH 4/7] ARM: dts: sun7i: Add pinmux settings for LCD0 RGB888 output. In-Reply-To: <20180326100114.fa7vjw342ad6vrb6@flea> References: <1521662593-25468-1-git-send-email-giulio.benetti@micronovasrl.com> <1521662593-25468-4-git-send-email-giulio.benetti@micronovasrl.com> <1521986953.5301.4.camel@paulk.fr> <20180326100114.fa7vjw342ad6vrb6@flea> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 ? 21:03 +0100, Giulio Benetti a ?crit : >>> The A20 supports RGB888 with H/V sync from LCD0. Add a pinmux setting >>> for the needed pins. >>> >>> Signed-off-by: Giulio Benetti >>> --- >>> 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 at 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 > > > -- Giulio Benetti CTO MICRONOVA SRL Sede: Via A. Niedda 3 - 35010 Vigonza (PD) Tel. 049/8931563 - Fax 049/8931346 Cod.Fiscale - P.IVA 02663420285 Capitale Sociale ? 26.000 i.v. Iscritta al Reg. Imprese di Padova N. 02663420285 Numero R.E.A. 258642