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devicetree: replace DT_HAS_DRV_INST with DT_INST_FOREACH

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Make drivers multi-instance wherever possible using DT_INST_FOREACH.
This allows removing DT_HAS_DRV_INST in favor of making drivers just
do the right thing regardless of how many instances there are.

There are a few exceptions:

- SoC drivers which use CMake input files (like i2c_dw.c) or otherwise
  would require more time to convert than I have at the moment. For the
  sake of expediency, just inline the DT_HAS_DRV_INST expansion for
  now in these cases.

- SoC drivers which are explicitly single-instance (like the nRF SAADC
  driver). Again for the sake of expediency, drop a BUILD_ASSERT in
  those cases to make sure the assumption that all supported SoCs have
  at most one available instance is valid, failing fast otherwise.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
This commit is contained in:
Martí Bolívar 2020-05-05 16:06:32 -07:00 • committed by Kumar Gala
commit 87e1743ae0
46 changed files with 571 additions and 1301 deletions
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44
drivers/serial/uart_stm32.c
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@ -779,46 +779,4 @@ DEVICE_AND_API_INIT(uart_stm32_##index, DT_INST_LABEL(index),\
\
STM32_UART_IRQ_HANDLER(index)
#if DT_HAS_DRV_INST(0)
STM32_UART_INIT(0)
#endif /* DT_HAS_DRV_INST(0) */
#if DT_HAS_DRV_INST(1)
STM32_UART_INIT(1)
#endif /* DT_HAS_DRV_INST(1) */
#if DT_HAS_DRV_INST(2)
STM32_UART_INIT(2)
#endif /* DT_HAS_DRV_INST(2) */
#if DT_HAS_DRV_INST(3)
STM32_UART_INIT(3)
#endif /* DT_HAS_DRV_INST(3) */
#if DT_HAS_DRV_INST(4)
STM32_UART_INIT(4)
#endif /* DT_HAS_DRV_INST(4) */
#if DT_HAS_DRV_INST(5)
STM32_UART_INIT(5)
#endif /* DT_HAS_DRV_INST(5) */
#if DT_HAS_DRV_INST(6)
STM32_UART_INIT(6)
#endif /* DT_HAS_DRV_INST(6) */
#if DT_HAS_DRV_INST(7)
STM32_UART_INIT(7)
#endif /* DT_HAS_DRV_INST(7) */
#if DT_HAS_DRV_INST(8)
STM32_UART_INIT(8)
#endif /* DT_HAS_DRV_INST(8) */
#if DT_HAS_DRV_INST(9)
STM32_UART_INIT(9)
#endif /* DT_HAS_DRV_INST(9) */
#if DT_HAS_DRV_INST(10)
STM32_UART_INIT(10)
#endif /* DT_HAS_DRV_INST(10) */
DT_INST_FOREACH(STM32_UART_INIT)