samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

disp: msm: dsi: add support to send commands to each sublink

Browse Source 
Change adds support for transferring commands to each sublink.

Change-Id: Iefc0dca7343325cdfe0cf48d41d50e6e2a13bc05
Signed-off-by: Vara Reddy <varar@codeaurora.org>
This commit is contained in:
Vara Reddy
2021-02-09 18:23:43 -08:00
parent 13b88147a1
commit 142bb24d7c
6 changed files with 47 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
msm/dsi/dsi_catalog.c
View File

@@ -84,6 +84,7 @@ static void dsi_catalog_cmn_init(struct dsi_ctrl_hw *ctrl,
ctrl->ops.configure_cmddma_window = NULL;
ctrl->ops.reset_trig_ctrl = NULL;
ctrl->ops.log_line_count = NULL;
ctrl->ops.splitlink_cmd_setup = NULL;
break;
case DSI_CTRL_VERSION_2_0:
ctrl->ops.setup_lane_map = dsi_ctrl_hw_20_setup_lane_map;
@@ -102,6 +103,7 @@ static void dsi_catalog_cmn_init(struct dsi_ctrl_hw *ctrl,
ctrl->ops.configure_cmddma_window = NULL;
ctrl->ops.reset_trig_ctrl = NULL;
ctrl->ops.log_line_count = NULL;
ctrl->ops.splitlink_cmd_setup = NULL;
break;
case DSI_CTRL_VERSION_2_2:
case DSI_CTRL_VERSION_2_3:
@@ -129,6 +131,7 @@ static void dsi_catalog_cmn_init(struct dsi_ctrl_hw *ctrl,
ctrl->ops.reset_trig_ctrl =
dsi_ctrl_hw_22_reset_trigger_controls;
ctrl->ops.log_line_count = dsi_ctrl_hw_22_log_line_count;
ctrl->ops.splitlink_cmd_setup = dsi_ctrl_hw_22_configure_splitlink;
break;
default:
break;

2
msm/dsi/dsi_catalog.h
View File

@@ -290,4 +290,6 @@ int dsi_catalog_phy_pll_setup(struct dsi_phy_hw *phy, u32 pll_ver);
int dsi_pll_5nm_configure(void *pll, bool commit);
int dsi_pll_5nm_toggle(void *pll, bool prepare);
void dsi_ctrl_hw_22_configure_splitlink(struct dsi_ctrl_hw *ctrl,
struct dsi_host_common_cfg *common_cfg, u32 sublink);
#endif /* _DSI_CATALOG_H_ */

3
msm/dsi/dsi_ctrl.c
View File

@@ -1360,6 +1360,9 @@ static void dsi_kickoff_msg_tx(struct dsi_ctrl *dsi_ctrl,
{
u32 hw_flags = 0;
struct dsi_ctrl_hw_ops dsi_hw_ops = dsi_ctrl->hw.ops;
struct dsi_split_link_config *split_link;
split_link = &(dsi_ctrl->host_config.common_config.split_link);
SDE_EVT32(dsi_ctrl->cell_index, SDE_EVTLOG_FUNC_ENTRY, flags,
msg->flags);

4
msm/dsi/dsi_ctrl.h
View File

@@ -33,6 +33,8 @@
* display panel dtsi file instead of default.
* @DSI_CTRL_CMD_ASYNC_WAIT: Command flag to indicate that the wait for done
* for this command is asynchronous and must be queued.
* @DSI_CTRL_CMD_SUBLINK0: Send the command in splitlink sublink0 only.
* @DSI_CTRL_CMD_SUBLINK1: Send the command in splitlink sublink1 only.
*/
#define DSI_CTRL_CMD_READ 0x1
#define DSI_CTRL_CMD_BROADCAST 0x2
@@ -44,6 +46,8 @@
#define DSI_CTRL_CMD_NON_EMBEDDED_MODE 0x80
#define DSI_CTRL_CMD_CUSTOM_DMA_SCHED 0x100
#define DSI_CTRL_CMD_ASYNC_WAIT 0x200
#define DSI_CTRL_CMD_SUBLINK0 0x400
#define DSI_CTRL_CMD_SUBLINK1 0x800
/* DSI embedded mode fifo size
* If the command is greater than 256 bytes it is sent in non-embedded mode.

9
msm/dsi/dsi_ctrl_hw.h
View File

@@ -869,6 +869,15 @@ struct dsi_ctrl_hw_ops {
* @cmd_mode: Boolean to indicate command mode operation.
*/
u32 (*log_line_count)(struct dsi_ctrl_hw *ctrl, bool cmd_mode);
/**
* hw.ops.splitlink_cmd_setup() - configure the sublink to transfer
* @ctrl: Pointer to the controller host hardware.
* @common_cfg: Common configuration parameters.
* @sublink: Which sublink to transfer the command.
*/
void (*splitlink_cmd_setup)(struct dsi_ctrl_hw *ctrl,
struct dsi_host_common_cfg *common_cfg, u32 sublink);
};
/*

27
msm/dsi/dsi_ctrl_hw_2_2.c
View File

@@ -1,11 +1,12 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2021, The Linux Foundation. All rights reserved.
*/
#include <linux/iopoll.h>
#include "dsi_ctrl_hw.h"
#include "dsi_ctrl_reg.h"
#include "dsi_hw.h"
#include "dsi_ctrl.h"
#include "dsi_catalog.h"
#define DISP_CC_MISC_CMD_REG_OFF 0x00
@@ -280,3 +281,27 @@ u32 dsi_ctrl_hw_22_log_line_count(struct dsi_ctrl_hw *ctrl, bool cmd_mode)
+ MDP_INTF_LINE_COUNT_OFFSET);
return reg;
}
void dsi_ctrl_hw_22_configure_splitlink(struct dsi_ctrl_hw *ctrl,
struct dsi_host_common_cfg *common_cfg, u32 flags)
{
u32 reg = 0;
reg = DSI_R32(ctrl, DSI_SPLIT_LINK);
/* DMA_LINK_SEL */
reg &= ~(0x7 << 12);
/* Send command to both sublinks unless specified */
if (flags & DSI_CTRL_CMD_SUBLINK0)
reg |= BIT(12);
else if (flags & DSI_CTRL_CMD_SUBLINK1)
reg |= BIT(13);
else
reg |= (BIT(12) | BIT(13));
DSI_W32(ctrl, DSI_SPLIT_LINK, reg);
/* Make sure the split link config is updated */
wmb();
}