Hi Arnd,
On Fri, Oct 21, 2016 at 5:47 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> The addition of one more rcar-gen2 based SoC caused a build error (again)
> in my randconfig builds:
>
> arch/arm/mach-shmobile/setup-rcar-gen2.o: In function `rcar_gen2_timer_init':
> setup-rcar-gen2.c:(.init.text+0x200): undefined reference to `rcar_gen2_clocks_init'
>
> I think this has happened twice in the past. Instead of adding each SoC
> one at a time, this changes the existing list to always build the
> rcar-gen2 related clk files whenever the generic symbol is selected.
The problem is that the R-Car Gen2 platform code calls into the R-Car Gen2
clock driver[*]. RZ/G1M (r8a7743) uses the R-Car Gen2 core, but not the
R-Car Gen2 clock driver.
Instead it will use the modern CPG/MSSR driver, like R-Car Gen3 does.
[*] That will be fixed by "[PATCH v4 00/23] soc: renesas: Add R-Car RST
driver for obtaining mode pin state".
> Fixes: 1254f607fc3d ("ARM: shmobile: r8a7743: basic SoC support")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> drivers/clk/renesas/Makefile | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
> index 90dd0db7d9c6..762d122eddec 100644
> --- a/drivers/clk/renesas/Makefile
> +++ b/drivers/clk/renesas/Makefile
> @@ -4,11 +4,7 @@ obj-$(CONFIG_ARCH_R8A73A4) += clk-r8a73a4.o clk-div6.o
> obj-$(CONFIG_ARCH_R8A7740) += clk-r8a7740.o clk-div6.o
> obj-$(CONFIG_ARCH_R8A7778) += clk-r8a7778.o
> obj-$(CONFIG_ARCH_R8A7779) += clk-r8a7779.o
> -obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o clk-div6.o
> -obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o clk-div6.o
> -obj-$(CONFIG_ARCH_R8A7792) += clk-rcar-gen2.o clk-div6.o
> -obj-$(CONFIG_ARCH_R8A7793) += clk-rcar-gen2.o clk-div6.o
> -obj-$(CONFIG_ARCH_R8A7794) += clk-rcar-gen2.o clk-div6.o
> +obj-$(CONFIG_ARCH_RCAR_GEN2) += clk-rcar-gen2.o clk-div6.o
> obj-$(CONFIG_ARCH_R8A7795) += r8a7795-cpg-mssr.o rcar-gen3-cpg.o
> obj-$(CONFIG_ARCH_R8A7796) += r8a7796-cpg-mssr.o rcar-gen3-cpg.o
> obj-$(CONFIG_ARCH_SH73A0) += clk-sh73a0.o clk-div6.o
Please don't fix it this way, as it will make it _harder_ to convert the R-Car
Gen2 SoCs to the modern CPG/MSSR driver later.
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
