BMC/Intel-BMC/linux.git/drivers/gpu/drm/msm/dsi, branch dev-4.17

drm/msm/dsi: use correct enum in dsi_get_cmd_fmt

2018-04-19T14:09:23+00:00

The function dsi_get_cmd_fmt returns enum dsi_cmd_dst_format, use the correct enum value also for MIPI_DSI_FMT_RGB666/_PACKED. This has been discovered using clang: drivers/gpu/drm/msm/dsi/dsi_host.c:743:35: warning: implicit conversion from enumeration type 'enum dsi_vid_dst_format' to different enumeration type 'enum dsi_cmd_dst_format' [-Wenum-conversion] case MIPI_DSI_FMT_RGB666: return VID_DST_FORMAT_RGB666; ~~~~~~ ^~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Stefan Agner Reviewed-by: Archit Taneja Signed-off-by: Rob Clark

drm/msm/dsi: implement auto PHY timing calculator for 10nm PHY

2018-04-19T14:08:16+00:00

Currently the DSI PHY timings are hard-coded for a specific panel for the 10nm PHY. Replace this with the auto PHY timing calculator which can calculate the PHY timings for any panel. Changes in v4: - None Changes in v3: - None Changes in v2: - None Reviewed-by: Sean Paul Reviewed-by: Archit Taneja Signed-off-by: Abhinav Kumar Signed-off-by: Sean Paul Signed-off-by: Rob Clark

drm/msm/dsi: check video mode engine status before waiting

2018-04-19T14:08:09+00:00

Make sure the video mode engine is on before waiting for the video done interrupt. Changes in v4: - Move setting enabled to false earlier Changes in v3: - Move the return value check to another patch Changes in v2: - Replace pr_err with dev_err - Changed error message Signed-off-by: Abhinav Kumar Signed-off-by: Sean Paul Signed-off-by: Rob Clark

drm/msm/dsi: check return value for video done waits

2018-04-19T14:08:00+00:00

Check for the return value of wait for video done waits and print appropriate error message. Signed-off-by: Abhinav Kumar Signed-off-by: Sean Paul Signed-off-by: Rob Clark

drm/msm/dsi: fix direct caller of msm_gem_free_object()

2018-03-19T10:33:36+00:00

This should be using drm_gem_object_put(). Also since this is done only in driver unload path, we don't need to synchronize setting tx_gem_obj to NULL, so juse use the _unlocked() variant. Signed-off-by: Rob Clark

drm/msm/dsi: Fix potential NULL pointer dereference in msm_dsi_modeset_init

2018-03-19T10:33:34+00:00

_dev_ is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after _dev_ has been null checked. Fixes: d4e7f38d70ef ("drm/msm/dsi: check msm_dsi and dsi pointers before use") Signed-off-by: Gustavo A. R. Silva Signed-off-by: Rob Clark

drm/msm/dsi: Get byte_intf_clk only for versions that need it

2018-02-20T15:41:22+00:00

Newer DSI host controllers (SDM845 in particular) require a new clock called byte_intf_clk. A recent patch tried to add this as an optional clock, but it still set 'ret' to an error number if it didn't find it. This breaks the host's probe for all previous DSI host versions. Instead of setting this up as an optional clock, try to get the clock only for the DSI version that supports it. Fixes: 56558fb ("drm/msm/dsi: Add byte_intf_clk") Signed-off-by: Archit Taneja Signed-off-by: Rob Clark

drm/msm/dsi: Add byte_intf_clk

2018-02-20T15:41:21+00:00

DSI6G v2.0+ blocks have a new clock input to them called byte_intf_clk. It's rate is to be set as byte_clk / 2. Within the clock controller (CC) subsystem, this clock is a child/descendant of the byte_clk. Set it up as an optional clock in the DSI host driver. Make sure that we enable/set its rate only after we configure byte_clk. This is required for the ancestor clocks in the CC to be configured correctly. Signed-off-by: Archit Taneja Signed-off-by: Rob Clark

drm/msm/dsi: Add SDM845 in dsi_cfg

2018-02-20T15:41:21+00:00

SDM845 contains 2 DSI6G v2.2.1 host controllers. Add them in dsi_cfg. Cc: Jordan Crouse Signed-off-by: Archit Taneja Signed-off-by: Rob Clark

drm/msm/dsi: Use msm_clk_get in dsi_get_config

2018-02-20T15:41:21+00:00

We try to get the interface clock in dsi_get_config early during DSI's component bind. Try getting both the "iface" and "iface_clk" clock name variants so that we are compatible with both new and legacy DT. Signed-off-by: Archit Taneja Signed-off-by: Rob Clark