linux-sg2042/drivers/sh
Geert Uytterhoeven 3c90c55dcd drivers: sh: compile drivers/sh/pm_runtime.c if ARCH_SHMOBILE_MULTI
If the kernel is built to support multi-ARM configuration with shmobile
support built in, then drivers/sh is not built. This contains the PM
runtime code in drivers/sh/pm_runtime.c, which implicitly enables the
module clocks for all devices, and thus is quite essential.
Without this, the state of clocks depends on implicit reset state, or on
the bootloader.

If ARCH_SHMOBILE_MULTI then build the drivers/sh directory, but ensure that
bits that may conflict (drivers/sh/clk if the common clock framework is
enabled) or are not used (drivers/sh/intc), are not built.
Also, only enable the PM runtime code when actually running on a shmobile
SoCs that needs it.

ARCH_SHMOBILE_MULTI was added a while ago by commit
efacfce5f8 ("ARM: shmobile: Introduce
ARCH_SHMOBILE_MULTI"), but drivers/sh was compiled for both
ARCH_SHMOBILE_LEGACY and ARCH_SHMOBILE_MULTI until commit
bf98c1eac1 ("ARM: Rename ARCH_SHMOBILE to
ARCH_SHMOBILE_LEGACY").

Inspired by a patch from Ben Dooks <ben.dooks@codethink.co.uk>.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-12 16:05:01 +09:00
..
clk ARM: shmobile: wait for MSTP clock status to toggle, when enabling it 2014-02-04 10:22:39 +09:00
intc sh: intc: Enable driver compilation with COMPILE_TEST 2014-02-18 09:22:21 +09:00
maple sh: Add module.h to arch/sh specific files as required. 2011-10-31 19:31:04 -04:00
superhyway sh: struct device - replace bus_id with dev_name(), dev_set_name() 2009-03-24 16:38:21 -07:00
Kconfig sh-pfc: Move driver from drivers/sh/ to drivers/pinctrl/ 2013-01-25 09:24:25 +09:00
Makefile drivers: sh: compile drivers/sh/pm_runtime.c if ARCH_SHMOBILE_MULTI 2014-05-12 16:05:01 +09:00
pm_runtime.c drivers: sh: compile drivers/sh/pm_runtime.c if ARCH_SHMOBILE_MULTI 2014-05-12 16:05:01 +09:00