Hi--
On 1/30/23 05:04, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
>
> Selecting CONFIG_PM_GENERIC_DOMAINS without CONFIG_PM leads to a
> build failure:
>
> WARNING: unmet direct dependencies detected for PM_GENERIC_DOMAINS
> Depends on [n]: PM [=n]
> Selected by [y]:
> - SUN20I_PPU [=y] && (ARCH_SUNXI [=n] || COMPILE_TEST [=y])
>
> drivers/base/power/domain_governor.c: In function 'default_suspend_ok':
> drivers/base/power/domain_governor.c:85:24: error: 'struct dev_pm_info' has no member named 'ignore_children'
> 85 | if (!dev->power.ignore_children)
> | ^
> drivers/base/power/domain.c: In function 'genpd_queue_power_off_work':
> drivers/base/power/domain.c:657:20: error: 'pm_wq' undeclared (first use in this function)
> 657 | queue_work(pm_wq, &genpd->power_off_work);
> | ^~~~~
>
> Unfortunately platforms are inconsistent between using 'select PM'
> and 'depends on PM' here. CONFIG_PM is a user-visible symbol, so
> in principle we should be using 'depends on', but on the other hand
> using 'select' here is more common among drivers/soc. Go with the
> majority for now, as this has a smaller risk of introducing circular
> dependencies. We may need to clean this up for consistency later.
>
> Fixes: 0e30ca5ab0a8 ("soc: sunxi: Add Allwinner D1 PPU driver")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
With this patch (in linux-next-20230203), building on sparc32 with
COMPILE_TEST=y and ARCH_SUNXI not set:
WARNING: unmet direct dependencies detected for PM
Depends on [n]: SPARC64 [=n]
Selected by [y]:
- SUN20I_PPU [=y] && (ARCH_SUNXI || COMPILE_TEST [=y])
WARNING: unmet direct dependencies detected for PM
Depends on [n]: SPARC64 [=n]
Selected by [y]:
- SUN20I_PPU [=y] && (ARCH_SUNXI || COMPILE_TEST [=y])
WARNING: unmet direct dependencies detected for PM_GENERIC_DOMAINS
Depends on [n]: SPARC64 [=n] && PM [=y]
Selected by [y]:
- QCOM_GDSC [=y] && COMMON_CLK [=y] && PM [=y]
- SUN20I_PPU [=y] && (ARCH_SUNXI || COMPILE_TEST [=y])
- MESON_GX_PM_DOMAINS [=y] && (ARCH_MESON || COMPILE_TEST [=y]) && PM [=y] && OF [=y]
- BCM2835_POWER [=y] && (ARCH_BCM2835 || COMPILE_TEST [=y] && OF [=y]) && PM [=y]
- BCM_PMB [=y] && (ARCH_BCMBCA || COMPILE_TEST [=y] && OF [=y]) && PM [=y]
- ROCKCHIP_PM_DOMAINS [=y] && (ARCH_ROCKCHIP || COMPILE_TEST [=y]) && PM [=y]
Selected by [m]:
- ARM_SCPI_POWER_DOMAIN [=m] && (ARM_SCPI_PROTOCOL [=m] || COMPILE_TEST [=y] && OF [=y]) && PM [=y]
- MESON_EE_PM_DOMAINS [=m] && (ARCH_MESON || COMPILE_TEST [=y]) && PM [=y] && OF [=y]
- QCOM_AOSS_QMP [=m] && (ARCH_QCOM || COMPILE_TEST [=y]) && MAILBOX [=y] && COMMON_CLK [=y] && PM [=y]
WARNING: unmet direct dependencies detected for PM_GENERIC_DOMAINS_OF
Depends on [n]: SPARC64 [=n] && PM_GENERIC_DOMAINS [=y] && OF [=y]
Selected by [y]:
- MESON_GX_PM_DOMAINS [=y] && (ARCH_MESON || COMPILE_TEST [=y]) && PM [=y] && OF [=y]
Selected by [m]:
- MESON_EE_PM_DOMAINS [=m] && (ARCH_MESON || COMPILE_TEST [=y]) && PM [=y] && OF [=y]
Apparently sparc32 does not support PM (arch/sparc/Kconfig):
if SPARC64
source "kernel/power/Kconfig"
endif
so I think that SUN20I_PPU should also depend on !SPARC32.
Does that make sense?
Thanks.
> ---
> drivers/soc/sunxi/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/soc/sunxi/Kconfig b/drivers/soc/sunxi/Kconfig
> index 29e9ba2d520d..02d0b338feb3 100644
> --- a/drivers/soc/sunxi/Kconfig
> +++ b/drivers/soc/sunxi/Kconfig
> @@ -23,6 +23,7 @@ config SUNXI_SRAM
> config SUN20I_PPU
> bool "Allwinner D1 PPU power domain driver"
> depends on ARCH_SUNXI || COMPILE_TEST
> + select PM
> select PM_GENERIC_DOMAINS
> help
> Say y to enable the PPU power domain driver. This saves power
--
~Randy
