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Depending on the IP version, TSENS supports upper, lower and critical
threshold interrupts. We only add support for upper and lower threshold
interrupts for now.
TSENSv2 has an irq [status|clear|mask] bit tuple for each sensor while
earlier versions only have a single bit per sensor to denote status and
clear. These differences are handled transparently by the interrupt
handler. At each interrupt, we reprogram the new upper and lower threshold
in the .set_trip callback.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/7508ba143f144407e5dd546107ddae65c380a76f.1572526427.git.amit.kucheria@linaro.org
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memory returned as part of nvmem_read via qfprom_read should be
freed by the consumer once done.
Existing code is not doing it so fix it.
Below memory leak detected by kmemleak
[<ffffff80088b7658>] kmemleak_alloc+0x50/0x84
[<ffffff80081df120>] __kmalloc+0xe8/0x168
[<ffffff80086db350>] nvmem_cell_read+0x30/0x80
[<ffffff8008632790>] qfprom_read+0x4c/0x7c
[<ffffff80086335a4>] calibrate_v1+0x34/0x204
[<ffffff8008632518>] tsens_probe+0x164/0x258
[<ffffff80084e0a1c>] platform_drv_probe+0x80/0xa0
[<ffffff80084de4f4>] really_probe+0x208/0x248
[<ffffff80084de2c4>] driver_probe_device+0x98/0xc0
[<ffffff80084dec54>] __device_attach_driver+0x9c/0xac
[<ffffff80084dca74>] bus_for_each_drv+0x60/0x8c
[<ffffff80084de634>] __device_attach+0x8c/0x100
[<ffffff80084de6c8>] device_initial_probe+0x20/0x28
[<ffffff80084dcbb8>] bus_probe_device+0x34/0x7c
[<ffffff80084deb08>] deferred_probe_work_func+0x6c/0x98
[<ffffff80080c3da8>] process_one_work+0x160/0x2f8
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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enabled"
This reverts commit 3e6a8fb3308419129c7a52de6eb42feef5a919a0.
Cc: Andy Gross <agross@kernel.org>
Cc: David Brown <david.brown@linaro.org>
Cc: Amit Kucheria <amit.kucheria@linaro.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Suggested-by: Amit Kucheria <amit.kucheria@linaro.org>
Reported-by: Andy Gross <andygro@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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The IP can support 'm' sensors while the platform can enable 'n' sensors
of the 'm' where n <= m.
Track maximum sensors supported by the IP so that we can correctly track
what subset of the sensors are supported on the platform.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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is_sensor_enabled() checks if the sensors are enabled on this platform.
It is possible that the SoC might choose not to enable all the sensors
that the IP block is capable of supporting.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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As we add support for newer versions of the TSENS IP, the current
approach isn't scaling because registers and bitfields get moved around,
requiring platform-specific hacks in the code. By moving to regmap, we
can hide the register level differences away from the code.
Define a common set of registers and bit-fields that we care about
across the various tsens IP versions.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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8974 and 8916 have the same version of the TSENS IP. Merge the files to
allow for better code reuse.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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Some #defines in tsens-v_0_1.c clash with those in tsens-8974.c. Prefix
them with 8916 to avoid the clash so we can merge the two files.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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8916 and 8974 use v0.1.0 of the TSENS IP. Rename tsens-8916 to prepare
it for merging with tsens-8974 in a later commit.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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