Hi Geert, On Wed, Jun 23, 2021 at 03:09:06PM +0200, Geert Uytterhoeven wrote: > On Wed, Jun 23, 2021 at 2:58 PM Laurent Pinchart wrote: > > On Wed, Jun 23, 2021 at 02:53:33PM +0200, Geert Uytterhoeven wrote: > > > On Wed, Jun 23, 2021 at 1:11 AM Kieran Bingham wrote: > > > > From: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx> > > > > > > > > Extend the Renesas DU display bindings to support the r8a779a0 V3U. > > > > > > > > Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx> > > > > > > Thanks for your patch! > > > > > > > --- a/Documentation/devicetree/bindings/display/renesas,du.yaml > > > > +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml > > > > @@ -39,6 +39,7 @@ properties: > > > > - renesas,du-r8a77980 # for R-Car V3H compatible DU > > > > - renesas,du-r8a77990 # for R-Car E3 compatible DU > > > > - renesas,du-r8a77995 # for R-Car D3 compatible DU > > > > + - renesas,du-r8a779a0 # for R-Car V3U compatible DU > > > > > > > > reg: > > > > maxItems: 1 > > > > @@ -774,6 +775,57 @@ allOf: > > > > - reset-names > > > > - renesas,vsps > > > > > > > > + - if: > > > > + properties: > > > > + compatible: > > > > + contains: > > > > + enum: > > > > + - renesas,du-r8a779a0 > > > > + then: > > > > + properties: > > > > + clocks: > > > > + items: > > > > + - description: Functional clock for DU0 > > > > + - description: Functional clock for DU1 > > > > + > > > > + clock-names: > > > > + items: > > > > + - const: du.0 > > > > + - const: du.1 > > > > > > The hardware block has only a single function clock for both channels, > > > like on R-Car H1. > > > > > > And what about DU_DOTCLKIN? > > > > As far as I can tell, there's no DU_DOTCLKIN in V3U. > > See Table 6.13 of the Hardware User's Manual, pin IPC_CLKIN. Maybe that's incorrect ? There's no mention of DU_DOTCLKIN anywhere else, and the DU bits that allow selection of the input clocks list the value documented for Gen3 SoCs as selected DU_DOTCLKIN as reserved. > Note that the register bits to configure it are present in > drivers/pinctrl/renesas/pfc-r8a779a0.c, but the actual pin group is > missing. -- Regards, Laurent Pinchart
