kernel/linux.git/drivers/slimbus, branch v4.19.112

slimbus: ngd: Fix build error on x86

2019-12-13T07:51:54+00:00

[ Upstream commit 458a445deb9c9fb13cec46fe9b179a84d2ff514f ] on non DT platforms like x86 of_match_node is set to NULL, dereferencing directly would throw an error. Fix this by doing this in two steps, get the match then the data. Reported-by: Greg KH Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

silmbus: ngd: register controller after power up.

2019-11-20T17:47:30+00:00

[ Upstream commit 94fe5f2b45c4108885e4b71f6b181068632ec904 ] Register slimbus controller only after finishing powerup sequnce so that we do not endup in situation where core starts sending transactions before the controller is ready. Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

slimbus: ngd: return proper error code instead of zero

2019-11-20T17:47:30+00:00

[ Upstream commit 9652e6aa62a1836494ebb8dbd402587c083b568c ] It looks like there is a typo in probe return. Fix it. Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

slimbus: ngd: register ngd driver only once.

2019-11-20T17:47:29+00:00

[ Upstream commit 1830dad34c070161fda2ff1db77b39ffa78aa380 ] Move ngd platform driver out of loop so that it registers only once. Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register

2019-05-31T13:46:14+00:00

[ Upstream commit 06d5d6b7f9948a89543e1160ef852d57892c750d ] In case platform_device_alloc fails, the fix returns an error code to avoid the NULL pointer dereference. Signed-off-by: Kangjie Lu Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

slimbus: ngd: mark PM functions as __maybe_unused

2018-12-19T18:19:49+00:00

Commit 2e6ae11dd0d1c37f44cec51a58fb2092e55ed0f5 upstream. qcom_slim_ngd_runtime_suspend is protected by an #ifdef, qcom_slim_ngd_runtime_idle is now, which causes a build time warning: drivers/slimbus/qcom-ngd-ctrl.c:1470:12: error: 'qcom_slim_ngd_runtime_idle' defined but not used [-Werror=unused-function] Marking both as __maybe_unused lets us get rid of the warning as well as the #ifdef. Fixes: 917809e2280b ("slimbus: ngd: Add qcom SLIMBus NGD driver") Signed-off-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

slimbus: stream: Fix htmldocs warnings

2018-07-08T13:19:04+00:00

This patch fixes below warning during building htmldoc: slimbus.h:352: warning: Function parameter or member 'name' not described in 'slim_stream_runtime' This patch also removes documentation for state variable in struct slim_stream_runtime which was redundant and removed. Reported-by: kbuild test robot Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman

slimbus: ngd: add stream support

2018-07-07T15:25:23+00:00

This patch adds support to stream support, this involve implementing user specific implementation of Data channel management and channel management SLIMbus messages. Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman

slimbus: stream: add stream support

2018-07-07T15:25:23+00:00

This patch adds support to SLIMbus stream apis for slimbus device. SLIMbus streaming involves adding support to Data Channel Management and channel Reconfiguration Messages to slim core plus few stream apis. >From slim device side the apis are very simple mostly inline with other stream apis. Currently it only supports Isochronous and Push/Pull transport protocols, which are sufficient for audio use cases. Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman

slimbus: ngd: Add qcom SLIMBus NGD driver

2018-07-07T15:24:32+00:00

This patch adds suppor to Qualcomm SLIMBus Non-Generic Device (NGD) controller driver. This is light-weight SLIMBus controller driver responsible for communicating with slave HW directly over the bus using messaging interface, and communicating with master component residing on ADSP for bandwidth and data-channel management Based on intial work from Karthikeyan Ramasubramanian and Sagar Dharia Signed-off-by: Srinivas Kandagatla Tested-by: Craig Tatlor Reviewed-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman