[PATCH v2] ARM: tegra: enforce PM requirement

From: Sameer Pujar
Date: Tue Feb 26 2019 - 03:25:57 EST


The requirement for this came while adding runtime PM support for HDA
driver. There were concerns about driver explicitly handling !PM case.
In general, drivers need to handle !PM case with work arounds for
managing clocks and power explicitly, which is not really necessary
when PM support on tegra is in good shape. In fact ARM 64-bit Tegra
platforms enforce PM support and there is no reason why this cannot be
done for 32-bit.

More details with regards to above can be found in following patch,
http://patchwork.ozlabs.org/patch/1036645/

This patch selects PM unconditionally and drivers can rely on runtime
PM framework for clock and power management.

Signed-off-by: Sameer Pujar <spujar@xxxxxxxxxx>
Reviewed-by: Thierry Reding <treding@xxxxxxxxxx>
Reviewed-by: Jonathan Hunter <jonathanh@xxxxxxxxxx>
---
arch/arm/mach-tegra/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 7f3b83e..51a8fa3 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -10,6 +10,7 @@ menuconfig ARCH_TEGRA
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
select PINCTRL
+ select PM
select PM_OPP
select ARCH_HAS_RESET_CONTROLLER
select RESET_CONTROLLER
--
2.7.4