ab1e9de84a
We have a board where measurements indicate that the current three options - leaving IO_IMPEDANCE_CTRL at the reset value (which is factory calibrated to a value corresponding to approximately 50 ohms) or using one of the two boolean properties to set it to the min/max value - are too coarse. There is no fixed mapping from register values to values in the range 35-70 ohms; it varies from chip to chip, and even that target range is approximate. So add a DT binding for an nvmem cell which can be populated during production with a value suitable for each specific board. Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|---|---|---|
| .. | ||
| bindings | ||
| changesets.rst | ||
| dynamic-resolution-notes.rst | ||
| index.rst | ||
| kernel-api.rst | ||
| of_unittest.rst | ||
| overlay-notes.rst | ||
| usage-model.rst | ||