drivers: dma: dw: Add power management state check in get_status #93330
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Add power management state validation in dw_dma_get_status() to ensure the device is in active state before attempting to read DMA status. Returns -EINVAL if device is not active, preventing potential issues when accessing hardware registers while device is suspended. Signed-off-by: Adrian Bonislawski <[email protected]>
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Add power management state validation in dw_dma_get_status() to ensure the device is in active state before attempting to read DMA status. Returns -EINVAL if device is not active, preventing potential issues when accessing hardware registers while device is suspended.