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Raspberry Pi Pico smorgasboard of bugfixes and improvements #80707

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Raspberry Pi Pico smorgasboard of bugfixes and improvements #80707

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Commits on Nov 29, 2024

  1. dts: arm: Move rpi_pico under raspberrypi 

    Follow the wider directory convention of dts/<arch>/<vendor>/<family>.

This is foundation work ahead of introducing support for the RP2350.

Signed-off-by: Andrew Featherstone <[email protected]>
    @ajf58
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  2. dts: arm: rp2040: Improve naming of included files 

    Rename rpi_pico_common.dtsi to rp2040_reset.h . This is more consistent
with the wider Zephyr source tree, and is foundation work ahead of
introducing the RP2350 SoC.

Add missing include guard. This shouldn't be required, but it is
consistent with other header files in the same directory.

Signed-off-by: Andrew Featherstone <[email protected]>
    @ajf58
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  3. drivers: clock_control: rpi_pico: Correct bitfields during init 

    RESETS_RESET_PLL_USB_BITS was logically or'd twice and 'unreset'ting
PWM doesn't seem to be required, based on the contents of the SDK.

Signed-off-by: Andrew Featherstone <[email protected]>
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  4. dts: bindings: clock: rpi_pico: Add default value matching the Pico SDK 

    The Pico SDK defines a default value for its XOSC multiplier. Reflect
this in the device tree binding so that it doesn't need to be repeated.

Signed-off-by: Andrew Featherstone <[email protected]>
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  5. drivers: clock_control: rpi_pico: Make pinctrl-0 optional 

    No in-tree board uses this driver's pinctrl functionality, and every
RP2040-based board was configuring this to be an empty node in the
device tree, so remove them.

Signed-off-by: Andrew Featherstone <[email protected]>
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  6. boards: rp2040: Lint whitespace in board.cmake files 

    Change whitespace to match the coding style for CMake files for all
rp2040-based boards.

This is foundation work ahead of adding support for boards based on the
RP235XX SoCs.

Signed-off-by: Andrew Featherstone <[email protected]>
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  7. drivers: dma: rpi_pico: Correct handling of NULL filter_param 

    From the API documentation, `dma_api_chan_filter`` can be given a value
of NULL for `filter_param`. Match the behaviour of most implementations,
and return true. This removes misleading error messages logged during
tests (e.g. `test_tst_dma0_m2m_loop`).

Signed-off-by: Andrew Featherstone <[email protected]>
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  8. tests: drivers: dma: Increase test coverage for RP2040 

    Increase test coverage for Raspberry Pi's RP2040. Use the `socs` folder
rather than `boards` to enable these tests to run on any boards with the
same SoCs.

Signed-off-by: Andrew Featherstone <[email protected]>
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