ARM: OMAP: AM33xx hwmod: Add parent-child relationship for PWM subsystem
As part of PWM subsystem integration, PWM subsystem are sharing resources like clock across submodules (ECAP, EQEP & EHRPWM). To handle resource sharing & IP integration rework on parent child relation between PWMSS and ECAP, EQEP & EHRPWM child devices to support runtime PM. Signed-off-by: NPhilip Avinash <avinashphilip@ti.com> Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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