Align ADSP SC5XX gpio DTS and driver with Linux - #104
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Replace the single gpio0 node (covering all ports via stride calculation)
with individual per-port nodes gpa–gpi, matching the Linux DTS binding.
Each port node has its own reg covering one 0x80-byte block, adi,bank-name
for the U-Boot gpio command label, and adi,ngpios for port width. The
gpio-adi-adsp driver is simplified accordingly: pin is now a local 0–15
index, no port calculation or stride needed, and bank_name ("A"–"I") is
read directly from the adi,bank-name property. Use dev_read_addr_ptr()
rather than dev_remap_addr() since pinctrl and GPIO share overlapping
physical register ranges.
All gpio-hog consumers are updated to reference the correct per-port node
with local pin indices.
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Replace the ADI-specific adi,ngpios with the standard ngpios property, aligning U-Boot DTS with Linux DTS for future CONFIG_OF_UPSTREAM adoption. Signed-off-by: Jie Zhang <jie.zhang@analog.com>
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This PR is for aligning ADSP SC5XX gpio DTS and driver with Linux. It does two things:
Replace the single gpio0 node (covering all ports via stride calculation) with individual per-port nodes gpa–gpi, matching the Linux DTS binding.
Replace the ADI-specific adi,ngpios with the standard ngpios property