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disp: msm: dp: add debugfs node for bpp override

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Add a debugfs node to set maximum bpp for the base panel which will
be used in both SST and MST use cases to limit the bpp.

Change-Id: I0ef7866e2b82a2078d6cdf97ee0d7226c2125b21
Signed-off-by: Nisarg Bhavsar <quic_bhavsar@quicinc.com>
Signed-off-by: Rajkumar Subbiah <quic_rsubbia@quicinc.com>
This commit is contained in:
Rajkumar Subbiah
2022-06-13 22:10:15 -04:00
committed by Gerrit - the friendly Code Review server
parent 38301e0bfe
commit 0b72b0d810
3 changed files with 15 additions and 4 deletions
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4
msm/dp/dp_debug.c
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@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only // SPDX-License-Identifier: GPL-2.0-only
/* /*
* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2017-2021, The Linux Foundation. All rights reserved. * Copyright (c) 2017-2021, The Linux Foundation. All rights reserved.
*/ */
@@ -2135,6 +2135,8 @@ static int dp_debug_init_link(struct dp_debug_private *debug,
debugfs_create_u32("link_bw_code", 0644, dir, &debug->panel->link_bw_code); debugfs_create_u32("link_bw_code", 0644, dir, &debug->panel->link_bw_code);
debugfs_create_u32("max_bpp", 0644, dir, &debug->panel->max_supported_bpp);
file = debugfs_create_file("mmrm_clk_cb", 0644, dir, debug, &mmrm_clk_cb_fops); file = debugfs_create_file("mmrm_clk_cb", 0644, dir, debug, &mmrm_clk_cb_fops);
if (IS_ERR_OR_NULL(file)) { if (IS_ERR_OR_NULL(file)) {
rc = PTR_ERR(file); rc = PTR_ERR(file);

12
msm/dp/dp_panel.c
View File

@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only // SPDX-License-Identifier: GPL-2.0-only
/* /*
* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved. * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved. * Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
*/ */
@@ -19,6 +19,7 @@
#define DP_KHZ_TO_HZ 1000 #define DP_KHZ_TO_HZ 1000
#define DP_PANEL_DEFAULT_BPP 24 #define DP_PANEL_DEFAULT_BPP 24
#define DP_MAX_DS_PORT_COUNT 1 #define DP_MAX_DS_PORT_COUNT 1
#define DP_PANEL_MAX_SUPPORTED_BPP 30
#define DSC_TGT_BPP 8 #define DSC_TGT_BPP 8
#define DPRX_FEATURE_ENUMERATION_LIST 0x2210 #define DPRX_FEATURE_ENUMERATION_LIST 0x2210
@@ -71,6 +72,7 @@ struct dp_panel_private {
struct dp_link *link; struct dp_link *link;
struct dp_parser *parser; struct dp_parser *parser;
struct dp_catalog_panel *catalog; struct dp_catalog_panel *catalog;
struct dp_panel *base;
bool panel_on; bool panel_on;
bool vsc_supported; bool vsc_supported;
bool vscext_supported; bool vscext_supported;
@@ -1921,13 +1923,16 @@ static u32 dp_panel_get_supported_bpp(struct dp_panel *dp_panel,
{ {
struct dp_link_params *link_params; struct dp_link_params *link_params;
struct dp_panel_private *panel; struct dp_panel_private *panel;
const u32 max_supported_bpp = 30; u32 max_supported_bpp = dp_panel->max_supported_bpp;
u32 min_supported_bpp = 18; u32 min_supported_bpp = 18;
u32 bpp = 0, link_bitrate = 0, mode_bitrate; u32 bpp = 0, link_bitrate = 0, mode_bitrate;
s64 rate_fp = 0; s64 rate_fp = 0;
panel = container_of(dp_panel, struct dp_panel_private, dp_panel); panel = container_of(dp_panel, struct dp_panel_private, dp_panel);
if (dp_panel->mst_state && panel->base)
max_supported_bpp = panel->base->max_supported_bpp;
if (dsc_en) if (dsc_en)
min_supported_bpp = 24; min_supported_bpp = 24;
@@ -3155,6 +3160,8 @@ struct dp_panel *dp_panel_get(struct dp_panel_in *in)
dp_panel->spd_enabled = true; dp_panel->spd_enabled = true;
dp_panel->link_bw_code = 0; dp_panel->link_bw_code = 0;
dp_panel->lane_count = 0; dp_panel->lane_count = 0;
dp_panel->max_supported_bpp = DP_PANEL_MAX_SUPPORTED_BPP;
memcpy(panel->spd_vendor_name, vendor_name, (sizeof(u8) * 8)); memcpy(panel->spd_vendor_name, vendor_name, (sizeof(u8) * 8));
memcpy(panel->spd_product_description, product_desc, (sizeof(u8) * 16)); memcpy(panel->spd_product_description, product_desc, (sizeof(u8) * 16));
dp_panel->connector = in->connector; dp_panel->connector = in->connector;
@@ -3164,6 +3171,7 @@ struct dp_panel *dp_panel_get(struct dp_panel_in *in)
dp_panel->dsc_continuous_pps = panel->parser->dsc_continuous_pps; dp_panel->dsc_continuous_pps = panel->parser->dsc_continuous_pps;
if (in->base_panel) { if (in->base_panel) {
panel->base = in->base_panel;
memcpy(dp_panel->dpcd, in->base_panel->dpcd, memcpy(dp_panel->dpcd, in->base_panel->dpcd,
DP_RECEIVER_CAP_SIZE + 1); DP_RECEIVER_CAP_SIZE + 1);
memcpy(dp_panel->dsc_dpcd, in->base_panel->dsc_dpcd, memcpy(dp_panel->dsc_dpcd, in->base_panel->dsc_dpcd,

3
msm/dp/dp_panel.h
View File

@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */ /* SPDX-License-Identifier: GPL-2.0-only */
/* /*
* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved. * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved. * Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
*/ */
@@ -125,6 +125,7 @@ struct dp_panel {
u32 max_bw_code; u32 max_bw_code;
u32 lane_count; u32 lane_count;
u32 link_bw_code; u32 link_bw_code;
u32 max_supported_bpp;
/* By default, stream_id is assigned to DP_INVALID_STREAM. /* By default, stream_id is assigned to DP_INVALID_STREAM.
* Client sets the stream id value using set_stream_id interface. * Client sets the stream id value using set_stream_id interface.