The PolarFire SoC SPI "hard" controller supports eight CS lines, out of
which only one CS line is physically wired. The default value of
'num-cs' was never set and it did not didn't impose a maximum value.
To reflect this hardware limitation in the device tree, the binding
enforces that the 'num-cs' property cannot exceed 1 unless additional
CS lines are explicitly defined using GPIO descriptors.
Fixes: 2da187304e ("spi: add bindings for microchip mpfs spi")
Signed-off-by: Prajna Rajendra Kumar <prajna.rajendrakumar@microchip.com>
Link: https://msgid.link/r/20240514104508.938448-2-prajna.rajendrakumar@microchip.com
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Enable yamllint to check the preferred commenting style of requiring a
space after a comment character '#'. Fix the cases in the tree which
have a warning with this enabled. Most cases just need a space after the
'#'. A couple of cases with comments which were not intended to be
comments are revealed. Those were in ti,sa2ul.yaml, ti,cal.yaml, and
brcm,bcmgenet.yaml.
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> # drm/msm
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20230303214223.49451-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Microchip's PolarFire SoC QSPI IP core is based on coreQSPI,
so add coreqspi as a fallback to mpfs-qspi.
Signed-off-by: Naga Sureshkumar Relli <nagasuresh.relli@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220808064603.1174906-3-nagasuresh.relli@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add microchip coreQSPI compatible string and update the title/description
to reflect this addition.
Signed-off-by: Naga Sureshkumar Relli <nagasuresh.relli@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220808064603.1174906-2-nagasuresh.relli@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The 'unevaluatedProperties' schema checks is not fully working and doesn't
catch some cases where there's a $ref to another schema. A fix is pending,
but results in new warnings in examples.
'spi-max-frequency' is supposed to be a per SPI peripheral device property,
not a SPI controller property, so drop it.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220526014141.2872567-1-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
