samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: dsi: Skip soft reset during display disable

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As per DSI HPG, Soft reset is not required to disable
video mode operation for version 1.3.0 and later. So,
add check to skip it during display disable.

Change-Id: If6d263bdf22f8a6fbef76d78d04bb9d11be05945
Signed-off-by: Ritesh Kumar <riteshk@codeaurora.org>
Signed-off-by: Steve Cohen <cohens@codeaurora.org>
This commit is contained in:
Ritesh Kumar
2020-05-07 18:59:54 +05:30
committed by Steve Cohen
parent d8ffbf3d39
commit 998dec67d8
3 changed files with 4 additions and 1 deletions
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2
msm/dsi/dsi_ctrl.c
View File

@@ -3675,7 +3675,7 @@ int dsi_ctrl_set_vid_engine_state(struct dsi_ctrl *dsi_ctrl,
dsi_ctrl->hw.ops.video_engine_en(&dsi_ctrl->hw, on);
/* perform a reset when turning off video engine */
if (!on)
if (!on && dsi_ctrl->version < DSI_CTRL_VERSION_1_3)
dsi_ctrl->hw.ops.soft_reset(&dsi_ctrl->hw);
}

2
msm/dsi/dsi_ctrl_hw.h
View File

@@ -31,6 +31,7 @@
/**
* enum dsi_ctrl_version - version of the dsi host controller
* @DSI_CTRL_VERSION_UNKNOWN: Unknown controller version
* @DSI_CTRL_VERSION_1_3: DSI host v1.3 controller
* @DSI_CTRL_VERSION_1_4: DSI host v1.4 controller
* @DSI_CTRL_VERSION_2_0: DSI host v2.0 controller
* @DSI_CTRL_VERSION_2_2: DSI host v2.2 controller
@@ -41,6 +42,7 @@
*/
enum dsi_ctrl_version {
DSI_CTRL_VERSION_UNKNOWN,
DSI_CTRL_VERSION_1_3,
DSI_CTRL_VERSION_1_4,
DSI_CTRL_VERSION_2_0,
DSI_CTRL_VERSION_2_2,

1
msm/dsi/dsi_ctrl_hw_cmn.c
View File

@@ -199,6 +199,7 @@ void dsi_ctrl_hw_cmn_soft_reset(struct dsi_ctrl_hw *ctrl)
DSI_W32(ctrl, DSI_CTRL, reg_ctrl);
wmb(); /* make sure DSI controller is enabled again */
DSI_CTRL_HW_DBG(ctrl, "ctrl soft reset done\n");
SDE_EVT32(ctrl->index);
}
/**