drivers/ili9341: use const qualifier where possible #13261
Merged
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Contribution description
This PR adds the const qualifier for the
dev
param in the ili9341 driver. With this PR, the driver is more compliant with RIOT drivers implementation guidelines.Especially the line:
MUST: use const devab_t *dev when the device descriptor can be access read-only
Testing procedure
tests/driver_ili9341
works (tested with success on stm32f429i-disc1).Issues/PRs references
None