[PATCH v18 06/15] clocksource/drivers/arm_arch_timer: Rework counter frequency detection.

From: Fu Wei Currently, the counter frequency detection call(arch_timer_detect_rate) combines all the ways to get counter frequency: device-tree property, system coprocessor register, MMIO timer. But in the most of use cases, we don't need all the ways to try: For example,

[PATCH v18 06/15] clocksource/drivers/arm_arch_timer: Rework counter frequency detection.

From: Fu Wei Currently, the counter frequency detection call(arch_timer_detect_rate) combines all the ways to get counter frequency: device-tree property, system coprocessor register, MMIO timer. But in the most of use cases, we don't need all the ways to try: For example, reading device-tree