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disp: msm: dsi: add support for splitlink sublinks video data swap

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Change adds support for enabling splitlink sublinks video data swap.

Change-Id: I731b85a5e8fe8638005433819957dd0658f72963
Signed-off-by: Vara Reddy <varar@codeaurora.org>
This commit is contained in:
Vara Reddy
2021-02-09 12:32:34 -08:00
parent 1b3ad8486d
commit 13b88147a1
5 changed files with 35 additions and 20 deletions
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6
msm/dsi/dsi_ctrl.c
View File

@@ -997,7 +997,7 @@ static int dsi_ctrl_update_link_freqs(struct dsi_ctrl *dsi_ctrl,
if (host_cfg->data_lanes & DSI_DATA_LANE_3)
num_of_lanes++;
if (split_link->split_link_enabled)
if (split_link->enabled)
num_of_lanes = split_link->lanes_per_sublink;
config->common_config.num_data_lanes = num_of_lanes;
@@ -1368,6 +1368,10 @@ static void dsi_kickoff_msg_tx(struct dsi_ctrl *dsi_ctrl,
dsi_hw_ops.reset_trig_ctrl(&dsi_ctrl->hw,
&dsi_ctrl->host_config.common_config);
if (dsi_hw_ops.splitlink_cmd_setup && split_link->enabled)
dsi_hw_ops.splitlink_cmd_setup(&dsi_ctrl->hw,
&dsi_ctrl->host_config.common_config, flags);
/*
* Always enable DMA scheduling for video mode panel.
*

12
msm/dsi/dsi_ctrl_hw_cmn.c
View File

@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.
*/
#include <linux/delay.h>
@@ -56,7 +56,7 @@ static void dsi_split_link_setup(struct dsi_ctrl_hw *ctrl,
{
u32 reg;
if (!cfg->split_link.split_link_enabled)
if (!cfg->split_link.enabled)
return;
reg = DSI_R32(ctrl, DSI_SPLIT_LINK);
@@ -69,6 +69,14 @@ static void dsi_split_link_setup(struct dsi_ctrl_hw *ctrl,
reg &= ~(0x7 << 20);
reg |= DSI_CTRL_MDP0_LINK_SEL;
/* COMMAND_INPUT_SWAP|VIDEO_INPUT_SWAP */
if (cfg->split_link.sublink_swap) {
if (cfg->split_link.panel_mode == DSI_OP_CMD_MODE)
reg |= BIT(8);
else
reg |= BIT(4);
}
/* EN */
reg |= 0x1;

8
msm/dsi/dsi_defs.h
View File

@@ -443,14 +443,18 @@ struct dsi_mode_info {
/**
* struct dsi_split_link_config - Split Link Configuration
* @split_link_enabled: Split Link Enabled.
* @enabled: Split Link Enabled.
* @sublink_swap: Split link left right sublinks swap.
* @num_sublinks: Number of sublinks.
* @lanes_per_sublink: Number of lanes per sublink.
* @panel_mode: Specifies cmd or video mode.
*/
struct dsi_split_link_config {
bool split_link_enabled;
bool enabled;
bool sublink_swap;
u32 num_sublinks;
u32 lanes_per_sublink;
enum dsi_op_mode panel_mode;
};
/**

20
msm/dsi/dsi_display.c
View File

@@ -2055,7 +2055,7 @@ static void adjust_timing_by_ctrl_count(const struct dsi_display *display,
struct dsi_display_mode *mode)
{
struct dsi_host_common_cfg *host = &display->panel->host_config;
bool is_split_link = host->split_link.split_link_enabled;
bool is_split_link = host->split_link.enabled;
u32 sublinks_count = host->split_link.num_sublinks;
if (is_split_link && sublinks_count > 1) {
@@ -5297,16 +5297,9 @@ static int dsi_display_validate_split_link(struct dsi_display *display)
struct dsi_display_ctrl *ctrl;
struct dsi_host_common_cfg *host = &display->panel->host_config;
if (!host->split_link.split_link_enabled)
if (!host->split_link.enabled)
return 0;
if (display->panel->panel_mode == DSI_OP_CMD_MODE) {
DSI_ERR("[%s] split link is not supported in command mode\n",
display->name);
rc = -ENOTSUPP;
goto error;
}
display_for_each_ctrl(i, display) {
ctrl = &display->ctrl[i];
if (!ctrl->ctrl->split_link_supported) {
@@ -5317,13 +5310,14 @@ static int dsi_display_validate_split_link(struct dsi_display *display)
}
set_bit(DSI_PHY_SPLIT_LINK, ctrl->phy->hw.feature_map);
host->split_link.panel_mode = display->panel->panel_mode;
}
DSI_DEBUG("Split link is enabled\n");
return 0;
error:
host->split_link.split_link_enabled = false;
host->split_link.enabled = false;
return rc;
}
@@ -6553,7 +6547,7 @@ int dsi_display_get_info(struct drm_connector *connector,
info->te_source = display->te_source;
host = &display->panel->host_config;
if (host->split_link.split_link_enabled)
if (host->split_link.enabled)
info->capabilities |= MSM_DISPLAY_SPLIT_LINK;
info->dsc_count = display->panel->dsc_count;
@@ -6827,7 +6821,7 @@ int dsi_display_get_modes(struct dsi_display *display,
display_mode.timing.mdp_transfer_time_us;
}
is_split_link = host->split_link.split_link_enabled;
is_split_link = host->split_link.enabled;
sublinks_count = host->split_link.num_sublinks;
if (is_split_link && sublinks_count > 1) {
display_mode.timing.h_active *= sublinks_count;
@@ -6924,7 +6918,7 @@ int dsi_display_get_panel_vfp(void *dsi_display,
}
host = &display->panel->host_config;
if (host->split_link.split_link_enabled)
if (host->split_link.enabled)
h_active *= host->split_link.num_sublinks;
else
h_active *= display->ctrl_count;

9
msm/dsi/dsi_panel.c
View File

@@ -1157,7 +1157,7 @@ static void dsi_panel_parse_split_link_config(struct dsi_host_common_cfg *host,
if (!supported) {
DSI_DEBUG("[%s] Split link is not supported\n", name);
split_link->split_link_enabled = false;
split_link->enabled = false;
return;
}
@@ -1177,9 +1177,14 @@ static void dsi_panel_parse_split_link_config(struct dsi_host_common_cfg *host,
split_link->lanes_per_sublink = val;
}
supported = utils->read_bool(utils->data, "qcom,split-link-sublink-swap");
if (!supported)
split_link->sublink_swap = false;
DSI_DEBUG("[%s] Split link is supported %d-%d\n", name,
split_link->num_sublinks, split_link->lanes_per_sublink);
split_link->split_link_enabled = true;
split_link->enabled = true;
}
static int dsi_panel_parse_host_config(struct dsi_panel *panel)