Hi Laurent, On Thu, Nov 19, 2015 at 10:13 PM, Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > On Thursday 19 November 2015 21:44:27 Geert Uytterhoeven wrote: >> On Thu, Nov 19, 2015 at 9:26 PM, Laurent Pinchart wrote: >> > On Thursday 19 November 2015 19:38:41 Geert Uytterhoeven wrote: >> >> Amend the DT bindings to include the optional clock sources for the Baud >> >> Rate Generator for External Clock (BRG), as found on some SCIF variants >> >> and on HSCIF. >> >> >> >> --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt >> >> +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt >> >> >> >> @@ -46,6 +46,12 @@ Required properties: >> >> On (H)SCI(F) and some SCIFA, an additional clock may be specified: >> >> - "hsck" for the optional external clock input (on HSCIF), >> >> - "sck" for the optional external clock input (on other variants). >> >> >> >> + On UARTs equipped with a Baud Rate Generator for External Clock >> >> (BRG) >> >> + (some SCIF and HSCIF), additional clocks may be specified: >> >> + - "int_clk" for the optional internal clock source for the >> >> frequency >> >> + divider (typically the (AXI or SHwy) bus clock), >> > >> > Isn't this always the same clock as the SCIF functional clock ? >> >> (On R-Car Gen2/3) >> >> No, SCIF uses different parents for fck (p) and int_clk (zs). > > Right, my bad. > > Should we rename "int_clk" to something that makes it explicit that the clock > is used as the BRG-EC input ? Maybe brg_clk, int_brg, int_brg_clk ? We > probably don't need to keep the _clk suffix as it's quite evident that a clock > name refers to a clock. The documentation always uses the SoC-specific explicit clock name (e.g. zs s3d1, or clks), or just "internal clock", so I used "int_clk". But I agree "int_brg" sounds better. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html