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This API rework eases the access to memory-mapped I/O registers and interrupts when using the platform driver. It introduces the notions of - Platform::Device - one device obtained from a platform session - Platform::Device::Mmio - locally-mapped MMIO registers of a device - Platform::Device::Irq - interface for receiving device interrupts The patch touches several drivers. Some drivers would require a significant structural change to adopt the new API (e.g., net/virtio, dde_linux drivers, imx gpio). In these cases, the patch adds compatibility shims meant to be temporary. In other cases (e.g., imx i2c), the adaptation was simple enough to carry through. Fixes #4075 |
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