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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2014-03-10 14:13:18 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-03-12 04:06:01 +0400 |
| commit | 2449d33a40553504867f407dd713e9bcf6f9fe24 (patch) | |
| tree | 86b3ce294a01a4a1c12dddb24d0ae5cd81a9c0a5 /arch/arm/mach-spear | |
| parent | 96bbbe4a2a5b13c440a19dd7a5ff33de3303aac4 (diff) | |
| download | linux-2449d33a40553504867f407dd713e9bcf6f9fe24.tar.xz | |
cpufreq: SPEAr: Instantiate as platform_driver
As multiplatform build is being adopted by more and more
ARM platforms, initcall function should be used very carefully.
For example, when SPEAr cpufreq driver is enabled on a kernel
booted on a non-SPEAr board, we will get following boot time error:
spear_cpufreq: Invalid cpufreq_tbl
To eliminate this undesired the effect, the patch changes SPEAr
driver to have it instantiated as a platform_driver. Then it will
only run on platforms that create the platform_device "spear-cpufreq".
This patch also creates platform node for SPEAr13xx boards.
Reported-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/arm/mach-spear')
| -rw-r--r-- | arch/arm/mach-spear/spear1310.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-spear/spear1340.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-spear/spear1310.c b/arch/arm/mach-spear/spear1310.c index 7ad003001ab7..824b12a56a42 100644 --- a/arch/arm/mach-spear/spear1310.c +++ b/arch/arm/mach-spear/spear1310.c @@ -28,6 +28,7 @@ static void __init spear1310_dt_init(void) { of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + platform_device_register_simple("spear-cpufreq", -1, NULL, 0); } static const char * const spear1310_dt_board_compat[] = { diff --git a/arch/arm/mach-spear/spear1340.c b/arch/arm/mach-spear/spear1340.c index 3fb683424729..7b6bff7154e1 100644 --- a/arch/arm/mach-spear/spear1340.c +++ b/arch/arm/mach-spear/spear1340.c @@ -143,6 +143,7 @@ static void __init spear1340_dt_init(void) { of_platform_populate(NULL, of_default_bus_match_table, spear1340_auxdata_lookup, NULL); + platform_device_register_simple("spear-cpufreq", -1, NULL, 0); } static const char * const spear1340_dt_board_compat[] = { |