linux-stable.git/drivers/slimbus, branch linux-6.3.y

driver core: make struct bus_type.uevent() take a const *

2023-01-27T12:45:52+00:00

The uevent() callback in struct bus_type should not be modifying the
device that is passed into it, so mark it as a const * and propagate the
function signature changes out into all relevant subsystems that use
this callback.

Acked-by: Rafael J. Wysocki 
Acked-by: Hans de Goede 
Link: https://lore.kernel.org/r/20230111113018.459199-16-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom-ngd-ctrl: reinit the reconf completion flag

2022-11-23T18:45:33+00:00

Reinitialize the reconf completion flag when ngd registers are
not retainied or when enumeration is lost for ngd.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-10-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom-ngd-ctrl: use devm_platform_get_and_ioremap_resource()

2022-11-23T18:45:33+00:00

Simplify the code with devm_platform_get_and_ioremap_resource().

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-9-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom-ctrl: use devm_platform_ioremap_resource_byname()

2022-11-23T18:45:33+00:00

Simplify the code with devm_platform_ioremap_resource_byname().

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-8-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom-ctrl: drop unneeded qcom,apq8064-slim compatible

2022-11-23T18:45:33+00:00

Bindings require usage of fallback "qcom,slim" compatible, so
"qcom,apq8064-slim" is redundant.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-7-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

slimbus: stream: add checks for invalid unprepare/disable usage

2022-11-23T18:45:33+00:00

slim_disable_stream() and slim_stream_unprepare() are exported, so add
sanity checks preventing unmatched/invalid calls.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-6-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom-ngd-ctrl: add support for 44.1 Khz frequency

2022-11-23T18:45:33+00:00

Add support for 44.1Khz frequency by dynamically calculating the slimbus
parameters instead of statically defining them.

Co-developed-by: Prudhvi Yarlagadda 
Signed-off-by: Prudhvi Yarlagadda 
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

slimbus: stream: handle unsupported bitrates for presence rate

2022-11-23T18:45:32+00:00

Handle errors of getting presence rate for unsupported stream bitrate,
instead of sending -EINVAL in change content message.

Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Konrad Dybcio 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom-ngd-ctrl: drop PM runtime counter on transfer error paths

2022-11-23T18:45:32+00:00

If transfer in qcom_slim_ngd_xfer_msg_sync() fails, we need to drop the
PM runtime usage counter to have it balanced.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom-ngd-ctrl: check for device runtime PM status during ISR

2022-11-23T18:45:32+00:00

Slimbus core interrupt is getting fired after suspend. At this point
ADSP slimbus hardware is off with gated clocks which is leading to an
unclocked access when HLOS slimbus tried to read the interrupt
status register in the ISR.

Co-developed-by: Chandana Kishori Chiluveru 
Signed-off-by: Chandana Kishori Chiluveru 
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118065246.6835-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman