diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2011-06-22 15:34:56 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-06-29 10:27:09 +0100 |
| commit | e4b6381009d740bd3a97e6b841d8efe7fc70c1b7 (patch) | |
| tree | b461d1c8c6f442658106aba9fdf05138578c0eaf | |
| parent | e73c34c3d522a60d9f7b38a7683076362bad98f5 (diff) | |
| download | linux-e4b6381009d740bd3a97e6b841d8efe7fc70c1b7.tar.bz2 | |
ARM: 6977/1: pmu: add platform_device_id table support
This patch adds support for platform_device_id tables, allowing new
PMU types to be registered with the correct type, without requiring
new platform_driver shims to provide the type. An single entry for
existing devices is provided.
Macros matching functionality of the of_device_id table macros are
provided for convenience.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/kernel/pmu.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/arch/arm/kernel/pmu.c b/arch/arm/kernel/pmu.c index 2ce00be697ea..2b70709376c3 100644 --- a/arch/arm/kernel/pmu.c +++ b/arch/arm/kernel/pmu.c @@ -61,9 +61,22 @@ static struct of_device_id armpmu_of_device_ids[] = { {}, }; +#define PLAT_MATCH_PMU(_name, _type) { \ + .name = _name, \ + .driver_data = _type, \ +} + +#define PLAT_MATCH_CPU(_name) PLAT_MATCH_PMU(_name, ARM_PMU_DEVICE_CPU) + +static struct platform_device_id armpmu_plat_device_ids[] = { + PLAT_MATCH_CPU("arm-pmu"), + {}, +}; + enum arm_pmu_type armpmu_device_type(struct platform_device *pdev) { const struct of_device_id *of_id; + const struct platform_device_id *pdev_id; /* provided by of_device_id table */ if (pdev->dev.of_node) { @@ -72,8 +85,10 @@ enum arm_pmu_type armpmu_device_type(struct platform_device *pdev) return (enum arm_pmu_type)of_id->data; } - /* Provided by a 'legacy' platform_device */ - return ARM_PMU_DEVICE_CPU; + /* Provided by platform_device_id table */ + pdev_id = platform_get_device_id(pdev); + BUG_ON(!pdev_id); + return pdev_id->driver_data; } static int __devinit armpmu_device_probe(struct platform_device *pdev) @@ -87,6 +102,7 @@ static struct platform_driver armpmu_driver = { .of_match_table = armpmu_of_device_ids, }, .probe = armpmu_device_probe, + .id_table = armpmu_plat_device_ids, }; static int __init register_pmu_driver(void) |