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Add test cases for the spk-id-gpios property used to read an integer
speaker ID value from a set of GPIO inputs.
There is a single parameterized test function,
cs35l56_shared_test_get_speaker_id_from_host_gpio() that does
the following:
- Create a mock GPIO driver to simulate real GPIO inputs.
- Create an array of struct software_node_ref_args to provide the
content of the spk-id-gpios property. Each entry is a reference to
a GPIO on the mock GPIO driver. The GPIO indexes are taken from test
case parameterization.
- Create a software node containing the spk-id-gpios property and set
this as the node of the pseudo codec driver device.
- Call cs35l56_get_speaker_id() and assert that the returned value
matches the expected value defined in the test case parameterization.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20260304162402.1714759-4-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add some KUnit tests for cs35l56_get_speaker_id().
These only test the simpler cases of reading the speaker ID from
cs_amp_get_vendor_spkid() or the "cirrus,speaker-id" property.
The untested case is reading it from GPIOs, which would require
a dummy implementation of a GPIO driver.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20260304162402.1714759-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add KUnit testing of:
cs35l56_check_and_save_onchip_spkid_gpios()
cs35l56_configure_onchip_spkid_pads()
cs35l56_read_onchip_spkid()
The test consists of:
- A mock regmap that simulates the pad and pin config registers.
- Parameterization of the pin list, pulls list, a simulated value for
each pin and the speaker ID value that this should produce.
- A self-test of the simulated pin and GPIO registers.
- A test that the value returned by cs35l56_read_onchip_spkid() is
correct.
- A test that the pin pull-up/down are set correctly by
cs35l56_configure_onchip_spkid_pads()
- A test that cs35l56_configure_onchip_spkid_pads() and
cs35l56_read_onchip_spkid(0 return the expected values if
cs35l56_base->num_onchip_spkid_gpios == 0.
- A test that cs35l56_check_and_save_onchip_spkid_gpios() saves
the configuration.
- A test that cs35l56_check_and_save_onchip_spkid_gpios() rejects
illegal GPIO numbers.
- A test that cs35l56_check_and_save_onchip_spkid_gpios() rejects
illegal pull types.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20260205164838.1611295-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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