| Message ID | 1352875704-2178-1-git-send-email-sachin.kamat@linaro.org (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Delegated to: | Zhang Rui |
| Headers | show |
Hi, Sachin, thanks for catching the problem. On Wed, 2012-11-14 at 12:18 +0530, Sachin Kamat wrote: > CPU_FREQ_TABLE depends on CPU_FREQ. Selecting CPU_FREQ_TABLE without checking > for dependencies gives the following compilation warnings: > warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC && UX500_SOC_DB8500 && > CPU_THERMAL && EXYNOS_THERMAL) selects CPU_FREQ_TABLE which has unmet > direct dependencies (ARCH_HAS_CPUFREQ && CPU_FREQ) > Amit, how is exynos driver supposed to work? do you want the exynos driver still be loaded without CPU_THERMAL? If yes, EXYNOS_THERMAL should not select CPU_FREQ_TABLE. If no, EXYNOS_THERMAL should depends on CPU_THERMAL instead of THERMAL. and CPU_THERMAL will select CPU_FREQ_TABLE instead. IMO, either of the above solution will be more proper to fix this warning. thanks, rui > Cc: Amit Daniel Kachhap <amit.kachhap@linaro.org> > Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> > --- > Build tested using exynos4_defconfig on linux-next tree of 20121114. > --- > drivers/thermal/Kconfig | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig > index 266c15e..197b7db 100644 > --- a/drivers/thermal/Kconfig > +++ b/drivers/thermal/Kconfig > @@ -50,7 +50,7 @@ config RCAR_THERMAL > > config EXYNOS_THERMAL > tristate "Temperature sensor on Samsung EXYNOS" > - depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL > + depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL && CPU_FREQ > select CPU_FREQ_TABLE > help > If you say yes here you get support for TMU (Thermal Managment -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Zhang, Thanks for your review comments. On 15 November 2012 05:41, Zhang Rui <rui.zhang@intel.com> wrote: > Hi, Sachin, > > thanks for catching the problem. > > On Wed, 2012-11-14 at 12:18 +0530, Sachin Kamat wrote: >> CPU_FREQ_TABLE depends on CPU_FREQ. Selecting CPU_FREQ_TABLE without checking >> for dependencies gives the following compilation warnings: >> warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC && UX500_SOC_DB8500 && >> CPU_THERMAL && EXYNOS_THERMAL) selects CPU_FREQ_TABLE which has unmet >> direct dependencies (ARCH_HAS_CPUFREQ && CPU_FREQ) >> > Amit, > > how is exynos driver supposed to work? > do you want the exynos driver still be loaded without CPU_THERMAL? > If yes, EXYNOS_THERMAL should not select CPU_FREQ_TABLE. > If no, EXYNOS_THERMAL should depends on CPU_THERMAL instead of THERMAL. > and CPU_THERMAL will select CPU_FREQ_TABLE instead. > > IMO, either of the above solution will be more proper to fix this > warning. I will discuss with Amit and send an updated patch to fix this. > > thanks, > rui > >> Cc: Amit Daniel Kachhap <amit.kachhap@linaro.org> >> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> >> --- >> Build tested using exynos4_defconfig on linux-next tree of 20121114. >> --- >> drivers/thermal/Kconfig | 2 +- >> 1 files changed, 1 insertions(+), 1 deletions(-) >> >> diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig >> index 266c15e..197b7db 100644 >> --- a/drivers/thermal/Kconfig >> +++ b/drivers/thermal/Kconfig >> @@ -50,7 +50,7 @@ config RCAR_THERMAL >> >> config EXYNOS_THERMAL >> tristate "Temperature sensor on Samsung EXYNOS" >> - depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL >> + depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL && CPU_FREQ >> select CPU_FREQ_TABLE >> help >> If you say yes here you get support for TMU (Thermal Managment > >
On Thu, 2012-11-15 at 08:52 +0530, Sachin Kamat wrote: > Hi Zhang, > > Thanks for your review comments. > > On 15 November 2012 05:41, Zhang Rui <rui.zhang@intel.com> wrote: > > Hi, Sachin, > > > > thanks for catching the problem. > > > > On Wed, 2012-11-14 at 12:18 +0530, Sachin Kamat wrote: > >> CPU_FREQ_TABLE depends on CPU_FREQ. Selecting CPU_FREQ_TABLE without checking > >> for dependencies gives the following compilation warnings: > >> warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC && UX500_SOC_DB8500 && > >> CPU_THERMAL && EXYNOS_THERMAL) selects CPU_FREQ_TABLE which has unmet > >> direct dependencies (ARCH_HAS_CPUFREQ && CPU_FREQ) > >> > > Amit, > > > > how is exynos driver supposed to work? > > do you want the exynos driver still be loaded without CPU_THERMAL? > > If yes, EXYNOS_THERMAL should not select CPU_FREQ_TABLE. > > If no, EXYNOS_THERMAL should depends on CPU_THERMAL instead of THERMAL. > > and CPU_THERMAL will select CPU_FREQ_TABLE instead. > > > > IMO, either of the above solution will be more proper to fix this > > warning. > > I will discuss with Amit and send an updated patch to fix this. > I checked the code of exynos driver, it fails to load if no cpufreq_cooling device found, which means it depends on CPU_THERMAL. I'm not sure if this is the behavior you want, but IMO, exynos driver should register its critical trip point to the generic thermal layer instead, when CPU_THERMAL is not set. thanks, rui > > > > > thanks, > > rui > > > >> Cc: Amit Daniel Kachhap <amit.kachhap@linaro.org> > >> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> > >> --- > >> Build tested using exynos4_defconfig on linux-next tree of 20121114. > >> --- > >> drivers/thermal/Kconfig | 2 +- > >> 1 files changed, 1 insertions(+), 1 deletions(-) > >> > >> diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig > >> index 266c15e..197b7db 100644 > >> --- a/drivers/thermal/Kconfig > >> +++ b/drivers/thermal/Kconfig > >> @@ -50,7 +50,7 @@ config RCAR_THERMAL > >> > >> config EXYNOS_THERMAL > >> tristate "Temperature sensor on Samsung EXYNOS" > >> - depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL > >> + depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL && CPU_FREQ > >> select CPU_FREQ_TABLE > >> help > >> If you say yes here you get support for TMU (Thermal Managment > > > > > > > -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 266c15e..197b7db 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -50,7 +50,7 @@ config RCAR_THERMAL config EXYNOS_THERMAL tristate "Temperature sensor on Samsung EXYNOS" - depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL + depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && THERMAL && CPU_FREQ select CPU_FREQ_TABLE help If you say yes here you get support for TMU (Thermal Managment
CPU_FREQ_TABLE depends on CPU_FREQ. Selecting CPU_FREQ_TABLE without checking for dependencies gives the following compilation warnings: warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC && UX500_SOC_DB8500 && CPU_THERMAL && EXYNOS_THERMAL) selects CPU_FREQ_TABLE which has unmet direct dependencies (ARCH_HAS_CPUFREQ && CPU_FREQ) Cc: Amit Daniel Kachhap <amit.kachhap@linaro.org> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> --- Build tested using exynos4_defconfig on linux-next tree of 20121114. --- drivers/thermal/Kconfig | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)