drm/msm/dpu: remove cdm block support from resource manager

Support for CDM block is not present in DPU. Remove CDM
handlers from resource manager.

changes in v4:
	- Introduced in the series
changes in v5:
	- Remove catalog references to CDM (Sean)
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/Makefile

@@ -58,7 +58,6 @@ msm-y := \
 	disp/dpu1/dpu_formats.o \
 	disp/dpu1/dpu_hw_blk.o \
 	disp/dpu1/dpu_hw_catalog.o \
-	disp/dpu1/dpu_hw_cdm.o \
 	disp/dpu1/dpu_hw_ctl.o \
 	disp/dpu1/dpu_hw_interrupts.o \
 	disp/dpu1/dpu_hw_intf.o \

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h

@@ -32,14 +32,12 @@
 /**
  * Encoder functions and data types
  * @intfs:	Interfaces this encoder is using, INTF_MODE_NONE if unused
- * @needs_cdm:	Encoder requests a CDM based on pixel format conversion needs
  * @display_num_of_h_tiles: Number of horizontal tiles in case of split
  *                          interface
  * @topology:   Topology of the display
  */
 struct dpu_encoder_hw_resources {
 	enum dpu_intf_mode intfs[INTF_MAX];
-	bool needs_cdm;
 	u32 display_num_of_h_tiles;
 };
 

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h

@@ -22,7 +22,6 @@
 #include "dpu_hw_pingpong.h"
 #include "dpu_hw_ctl.h"
 #include "dpu_hw_top.h"
-#include "dpu_hw_cdm.h"
 #include "dpu_encoder.h"
 
 #define DPU_ENCODER_NAME_MAX	16
@@ -204,8 +203,6 @@ struct dpu_encoder_irq {
  * @parent_ops:		Callbacks exposed by the parent to the phys_enc
  * @hw_mdptop:		Hardware interface to the top registers
  * @hw_ctl:		Hardware interface to the ctl registers
- * @hw_cdm:		Hardware interface to the cdm registers
- * @cdm_cfg:		Chroma-down hardware configuration
  * @hw_pp:		Hardware interface to the ping pong registers
  * @dpu_kms:		Pointer to the dpu_kms top level
  * @cached_mode:	DRM mode cached at mode_set time, acted on in enable
@@ -235,8 +232,6 @@ struct dpu_encoder_phys {
 	const struct dpu_encoder_virt_ops *parent_ops;
 	struct dpu_hw_mdp *hw_mdptop;
 	struct dpu_hw_ctl *hw_ctl;
-	struct dpu_hw_cdm *hw_cdm;
-	struct dpu_hw_cdm_cfg cdm_cfg;
 	struct dpu_hw_pingpong *hw_pp;
 	struct dpu_kms *dpu_kms;
 	struct drm_display_mode cached_mode;

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c

@@ -294,18 +294,6 @@ static struct dpu_intf_cfg sdm845_intf[] = {
 	INTF_BLK("intf_3", INTF_3, 0x6B800, INTF_DP, 1),
 };
 
-/*************************************************************
- * CDM sub blocks config
- *************************************************************/
-static struct dpu_cdm_cfg sdm845_cdm[] = {
-	{
-	.name = "cdm_0", .id = CDM_0,
-	.base = 0x79200, .len = 0x224,
-	.features = 0,
-	.intf_connect = BIT(INTF_3),
-	},
-};
-
 /*************************************************************
  * VBIF sub blocks config
  *************************************************************/
@@ -430,8 +418,6 @@ static void sdm845_cfg_init(struct dpu_mdss_cfg *dpu_cfg)
 		.mixer = sdm845_lm,
 		.pingpong_count = ARRAY_SIZE(sdm845_pp),
 		.pingpong = sdm845_pp,
-		.cdm_count = ARRAY_SIZE(sdm845_cdm),
-		.cdm = sdm845_cdm,
 		.intf_count = ARRAY_SIZE(sdm845_intf),
 		.intf = sdm845_intf,
 		.vbif_count = ARRAY_SIZE(sdm845_vbif),

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h

@@ -493,18 +493,6 @@ struct dpu_pingpong_cfg  {
 	const struct dpu_pingpong_sub_blks *sblk;
 };
 
-/**
- * struct dpu_cdm_cfg - information of chroma down blocks
- * @id                 enum identifying this block
- * @base               register offset of this block
- * @features           bit mask identifying sub-blocks/features
- * @intf_connect       Bitmask of INTF IDs this CDM can connect to
- */
-struct dpu_cdm_cfg   {
-	DPU_HW_BLK_INFO;
-	unsigned long intf_connect;
-};
-
 /**
  * struct dpu_intf_cfg - information of timing engine blocks
  * @id                 enum identifying this block
@@ -695,9 +683,6 @@ struct dpu_mdss_cfg {
 	u32 pingpong_count;
 	struct dpu_pingpong_cfg *pingpong;
 
-	u32 cdm_count;
-	struct dpu_cdm_cfg *cdm;
-
 	u32 intf_count;
 	struct dpu_intf_cfg *intf;
 
@@ -733,7 +718,6 @@ struct dpu_mdss_hw_cfg_handler {
 #define BLK_CURSOR(s) ((s)->cursor)
 #define BLK_MIXER(s) ((s)->mixer)
 #define BLK_PINGPONG(s) ((s)->pingpong)
-#define BLK_CDM(s) ((s)->cdm)
 #define BLK_INTF(s) ((s)->intf)
 #define BLK_AD(s) ((s)->ad)
 

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_cdm.c

-/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include "dpu_hw_mdss.h"
-#include "dpu_hwio.h"
-#include "dpu_hw_catalog.h"
-#include "dpu_hw_cdm.h"
-#include "dpu_dbg.h"
-#include "dpu_kms.h"
-
-#define CDM_CSC_10_OPMODE                  0x000
-#define CDM_CSC_10_BASE                    0x004
-
-#define CDM_CDWN2_OP_MODE                  0x100
-#define CDM_CDWN2_CLAMP_OUT                0x104
-#define CDM_CDWN2_PARAMS_3D_0              0x108
-#define CDM_CDWN2_PARAMS_3D_1              0x10C
-#define CDM_CDWN2_COEFF_COSITE_H_0         0x110
-#define CDM_CDWN2_COEFF_COSITE_H_1         0x114
-#define CDM_CDWN2_COEFF_COSITE_H_2         0x118
-#define CDM_CDWN2_COEFF_OFFSITE_H_0        0x11C
-#define CDM_CDWN2_COEFF_OFFSITE_H_1        0x120
-#define CDM_CDWN2_COEFF_OFFSITE_H_2        0x124
-#define CDM_CDWN2_COEFF_COSITE_V           0x128
-#define CDM_CDWN2_COEFF_OFFSITE_V          0x12C
-#define CDM_CDWN2_OUT_SIZE                 0x130
-
-#define CDM_HDMI_PACK_OP_MODE              0x200
-#define CDM_CSC_10_MATRIX_COEFF_0          0x004
-
-/**
- * Horizontal coefficients for cosite chroma downscale
- * s13 representation of coefficients
- */
-static u32 cosite_h_coeff[] = {0x00000016, 0x000001cc, 0x0100009e};
-
-/**
- * Horizontal coefficients for offsite chroma downscale
- */
-static u32 offsite_h_coeff[] = {0x000b0005, 0x01db01eb, 0x00e40046};
-
-/**
- * Vertical coefficients for cosite chroma downscale
- */
-static u32 cosite_v_coeff[] = {0x00080004};
-/**
- * Vertical coefficients for offsite chroma downscale
- */
-static u32 offsite_v_coeff[] = {0x00060002};
-
-/* Limited Range rgb2yuv coeff with clamp and bias values for CSC 10 module */
-static struct dpu_csc_cfg rgb2yuv_cfg = {
-	{
-		0x0083, 0x0102, 0x0032,
-		0x1fb5, 0x1f6c, 0x00e1,
-		0x00e1, 0x1f45, 0x1fdc
-	},
-	{ 0x00, 0x00, 0x00 },
-	{ 0x0040, 0x0200, 0x0200 },
-	{ 0x000, 0x3ff, 0x000, 0x3ff, 0x000, 0x3ff },
-	{ 0x040, 0x3ac, 0x040, 0x3c0, 0x040, 0x3c0 },
-};
-
-static struct dpu_cdm_cfg *_cdm_offset(enum dpu_cdm cdm,
-		struct dpu_mdss_cfg *m,
-		void __iomem *addr,
-		struct dpu_hw_blk_reg_map *b)
-{
-	int i;
-
-	for (i = 0; i < m->cdm_count; i++) {
-		if (cdm == m->cdm[i].id) {
-			b->base_off = addr;
-			b->blk_off = m->cdm[i].base;
-			b->length = m->cdm[i].len;
-			b->hwversion = m->hwversion;
-			b->log_mask = DPU_DBG_MASK_CDM;
-			return &m->cdm[i];
-		}
-	}
-
-	return ERR_PTR(-EINVAL);
-}
-
-static int dpu_hw_cdm_setup_csc_10bit(struct dpu_hw_cdm *ctx,
-		struct dpu_csc_cfg *data)
-{
-	dpu_hw_csc_setup(&ctx->hw, CDM_CSC_10_MATRIX_COEFF_0, data, true);
-
-	return 0;
-}
-
-static int dpu_hw_cdm_setup_cdwn(struct dpu_hw_cdm *ctx,
-		struct dpu_hw_cdm_cfg *cfg)
-{
-	struct dpu_hw_blk_reg_map *c = &ctx->hw;
-	u32 opmode = 0;
-	u32 out_size = 0;
-
-	if (cfg->output_bit_depth == CDM_CDWN_OUTPUT_10BIT)
-		opmode &= ~BIT(7);
-	else
-		opmode |= BIT(7);
-
-	/* ENABLE DWNS_H bit */
-	opmode |= BIT(1);
-
-	switch (cfg->h_cdwn_type) {
-	case CDM_CDWN_DISABLE:
-		/* CLEAR METHOD_H field */
-		opmode &= ~(0x18);
-		/* CLEAR DWNS_H bit */
-		opmode &= ~BIT(1);
-		break;
-	case CDM_CDWN_PIXEL_DROP:
-		/* Clear METHOD_H field (pixel drop is 0) */
-		opmode &= ~(0x18);
-		break;
-	case CDM_CDWN_AVG:
-		/* Clear METHOD_H field (Average is 0x1) */
-		opmode &= ~(0x18);
-		opmode |= (0x1 << 0x3);
-		break;
-	case CDM_CDWN_COSITE:
-		/* Clear METHOD_H field (Average is 0x2) */
-		opmode &= ~(0x18);
-		opmode |= (0x2 << 0x3);
-		/* Co-site horizontal coefficients */
-		DPU_REG_WRITE(c, CDM_CDWN2_COEFF_COSITE_H_0,
-				cosite_h_coeff[0]);
-		DPU_REG_WRITE(c, CDM_CDWN2_COEFF_COSITE_H_1,
-				cosite_h_coeff[1]);
-		DPU_REG_WRITE(c, CDM_CDWN2_COEFF_COSITE_H_2,
-				cosite_h_coeff[2]);
-		break;
-	case CDM_CDWN_OFFSITE:
-		/* Clear METHOD_H field (Average is 0x3) */
-		opmode &= ~(0x18);
-		opmode |= (0x3 << 0x3);
-
-		/* Off-site horizontal coefficients */
-		DPU_REG_WRITE(c, CDM_CDWN2_COEFF_OFFSITE_H_0,
-				offsite_h_coeff[0]);
-		DPU_REG_WRITE(c, CDM_CDWN2_COEFF_OFFSITE_H_1,
-				offsite_h_coeff[1]);
-		DPU_REG_WRITE(c, CDM_CDWN2_COEFF_OFFSITE_H_2,
-				offsite_h_coeff[2]);
-		break;
-	default:
-		pr_err("%s invalid horz down sampling type\n", __func__);
-		return -EINVAL;
-	}
-
-	/* ENABLE DWNS_V bit */
-	opmode |= BIT(2);
-
-	switch (cfg->v_cdwn_type) {
-	case CDM_CDWN_DISABLE:
-		/* CLEAR METHOD_V field */
-		opmode &= ~(0x60);
-		/* CLEAR DWNS_V bit */
-		opmode &= ~BIT(2);
-		break;
-	case CDM_CDWN_PIXEL_DROP:
-		/* Clear METHOD_V field (pixel drop is 0) */
-		opmode &= ~(0x60);
-		break;
-	case CDM_CDWN_AVG:
-		/* Clear METHOD_V field (Average is 0x1) */
-		opmode &= ~(0x60);
-		opmode |= (0x1 << 0x5);
-		break;
-	case CDM_CDWN_COSITE:
-		/* Clear METHOD_V field (Average is 0x2) */
-		opmode &= ~(0x60);
-		opmode |= (0x2 << 0x5);
-		/* Co-site vertical coefficients */
-		DPU_REG_WRITE(c,
-				CDM_CDWN2_COEFF_COSITE_V,
-				cosite_v_coeff[0]);
-		break;
-	case CDM_CDWN_OFFSITE:
-		/* Clear METHOD_V field (Average is 0x3) */
-		opmode &= ~(0x60);
-		opmode |= (0x3 << 0x5);
-
-		/* Off-site vertical coefficients */
-		DPU_REG_WRITE(c,
-				CDM_CDWN2_COEFF_OFFSITE_V,
-				offsite_v_coeff[0]);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (cfg->v_cdwn_type || cfg->h_cdwn_type)
-		opmode |= BIT(0); /* EN CDWN module */
-	else
-		opmode &= ~BIT(0);
-
-	out_size = (cfg->output_width & 0xFFFF) |
-		((cfg->output_height & 0xFFFF) << 16);
-	DPU_REG_WRITE(c, CDM_CDWN2_OUT_SIZE, out_size);
-	DPU_REG_WRITE(c, CDM_CDWN2_OP_MODE, opmode);
-	DPU_REG_WRITE(c, CDM_CDWN2_CLAMP_OUT,
-			((0x3FF << 16) | 0x0));
-
-	return 0;
-}
-
-static int dpu_hw_cdm_enable(struct dpu_hw_cdm *ctx,
-		struct dpu_hw_cdm_cfg *cdm)
-{
-	struct dpu_hw_blk_reg_map *c = &ctx->hw;
-	const struct dpu_format *fmt = cdm->output_fmt;
-	struct cdm_output_cfg cdm_cfg = { 0 };
-	u32 opmode = 0;
-	u32 csc = 0;
-
-	if (!DPU_FORMAT_IS_YUV(fmt))
-		return -EINVAL;
-
-	if (cdm->output_type == CDM_CDWN_OUTPUT_HDMI) {
-		if (fmt->chroma_sample != DPU_CHROMA_H1V2)
-			return -EINVAL; /*unsupported format */
-		opmode = BIT(0);
-		opmode |= (fmt->chroma_sample << 1);
-		cdm_cfg.intf_en = true;
-	}
-
-	csc |= BIT(2);
-	csc &= ~BIT(1);
-	csc |= BIT(0);
-
-	if (ctx->hw_mdp && ctx->hw_mdp->ops.setup_cdm_output)
-		ctx->hw_mdp->ops.setup_cdm_output(ctx->hw_mdp, &cdm_cfg);
-
-	DPU_REG_WRITE(c, CDM_CSC_10_OPMODE, csc);
-	DPU_REG_WRITE(c, CDM_HDMI_PACK_OP_MODE, opmode);
-	return 0;
-}
-
-static void dpu_hw_cdm_disable(struct dpu_hw_cdm *ctx)
-{
-	struct cdm_output_cfg cdm_cfg = { 0 };
-
-	if (ctx->hw_mdp && ctx->hw_mdp->ops.setup_cdm_output)
-		ctx->hw_mdp->ops.setup_cdm_output(ctx->hw_mdp, &cdm_cfg);
-}
-
-static void _setup_cdm_ops(struct dpu_hw_cdm_ops *ops,
-	unsigned long features)
-{
-	ops->setup_csc_data = dpu_hw_cdm_setup_csc_10bit;
-	ops->setup_cdwn = dpu_hw_cdm_setup_cdwn;
-	ops->enable = dpu_hw_cdm_enable;
-	ops->disable = dpu_hw_cdm_disable;
-}
-
-static struct dpu_hw_blk_ops dpu_hw_ops = {
-	.start = NULL,
-	.stop = NULL,
-};
-
-struct dpu_hw_cdm *dpu_hw_cdm_init(enum dpu_cdm idx,
-		void __iomem *addr,
-		struct dpu_mdss_cfg *m,
-		struct dpu_hw_mdp *hw_mdp)
-{
-	struct dpu_hw_cdm *c;
-	struct dpu_cdm_cfg *cfg;
-	int rc;
-
-	c = kzalloc(sizeof(*c), GFP_KERNEL);
-	if (!c)
-		return ERR_PTR(-ENOMEM);
-
-	cfg = _cdm_offset(idx, m, addr, &c->hw);
-	if (IS_ERR_OR_NULL(cfg)) {
-		kfree(c);
-		return ERR_PTR(-EINVAL);
-	}
-
-	c->idx = idx;
-	c->caps = cfg;
-	_setup_cdm_ops(&c->ops, c->caps->features);
-	c->hw_mdp = hw_mdp;
-
-	rc = dpu_hw_blk_init(&c->base, DPU_HW_BLK_CDM, idx, &dpu_hw_ops);
-	if (rc) {
-		DPU_ERROR("failed to init hw blk %d\n", rc);
-		goto blk_init_error;
-	}
-
-	/*
-	 * Perform any default initialization for the chroma down module
-	 * @setup default csc coefficients
-	 */
-	dpu_hw_cdm_setup_csc_10bit(c, &rgb2yuv_cfg);
-
-	return c;
-
-blk_init_error:
-	kzfree(c);
-
-	return ERR_PTR(rc);
-}
-
-void dpu_hw_cdm_destroy(struct dpu_hw_cdm *cdm)
-{
-	if (cdm)
-		dpu_hw_blk_destroy(&cdm->base);
-	kfree(cdm);
-}

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_cdm.h

-/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _DPU_HW_CDM_H
-#define _DPU_HW_CDM_H
-
-#include "dpu_hw_mdss.h"
-#include "dpu_hw_top.h"
-#include "dpu_hw_blk.h"
-
-struct dpu_hw_cdm;
-
-struct dpu_hw_cdm_cfg {
-	u32 output_width;
-	u32 output_height;
-	u32 output_bit_depth;
-	u32 h_cdwn_type;
-	u32 v_cdwn_type;
-	const struct dpu_format *output_fmt;
-	u32 output_type;
-	int flags;
-};
-
-enum dpu_hw_cdwn_type {
-	CDM_CDWN_DISABLE,
-	CDM_CDWN_PIXEL_DROP,
-	CDM_CDWN_AVG,
-	CDM_CDWN_COSITE,
-	CDM_CDWN_OFFSITE,
-};
-
-enum dpu_hw_cdwn_output_type {
-	CDM_CDWN_OUTPUT_HDMI,
-	CDM_CDWN_OUTPUT_WB,
-};
-
-enum dpu_hw_cdwn_output_bit_depth {
-	CDM_CDWN_OUTPUT_8BIT,
-	CDM_CDWN_OUTPUT_10BIT,
-};
-
-/**
- * struct dpu_hw_cdm_ops : Interface to the chroma down Hw driver functions
- *                         Assumption is these functions will be called after
- *                         clocks are enabled
- *  @setup_csc:            Programs the csc matrix
- *  @setup_cdwn:           Sets up the chroma down sub module
- *  @enable:               Enables the output to interface and programs the
- *                         output packer
- *  @disable:              Puts the cdm in bypass mode
- */
-struct dpu_hw_cdm_ops {
-	/**
-	 * Programs the CSC matrix for conversion from RGB space to YUV space,
-	 * it is optional to call this function as this matrix is automatically
-	 * set during initialization, user should call this if it wants
-	 * to program a different matrix than default matrix.
-	 * @cdm:          Pointer to the chroma down context structure
-	 * @data          Pointer to CSC configuration data
-	 * return:        0 if success; error code otherwise
-	 */
-	int (*setup_csc_data)(struct dpu_hw_cdm *cdm,
-			struct dpu_csc_cfg *data);
-
-	/**
-	 * Programs the Chroma downsample part.
-	 * @cdm         Pointer to chroma down context
-	 */
-	int (*setup_cdwn)(struct dpu_hw_cdm *cdm,
-	struct dpu_hw_cdm_cfg *cfg);
-
-	/**
-	 * Enable the CDM module
-	 * @cdm         Pointer to chroma down context
-	 */
-	int (*enable)(struct dpu_hw_cdm *cdm,
-	struct dpu_hw_cdm_cfg *cfg);
-
-	/**
-	 * Disable the CDM module
-	 * @cdm         Pointer to chroma down context
-	 */
-	void (*disable)(struct dpu_hw_cdm *cdm);
-};
-
-struct dpu_hw_cdm {
-	struct dpu_hw_blk base;
-	struct dpu_hw_blk_reg_map hw;
-
-	/* chroma down */
-	const struct dpu_cdm_cfg *caps;
-	enum  dpu_cdm  idx;
-
-	/* mdp top hw driver */
-	struct dpu_hw_mdp *hw_mdp;
-
-	/* ops */
-	struct dpu_hw_cdm_ops ops;
-};
-
-/**
- * dpu_hw_cdm - convert base object dpu_hw_base to container
- * @hw: Pointer to base hardware block
- * return: Pointer to hardware block container
- */
-static inline struct dpu_hw_cdm *to_dpu_hw_cdm(struct dpu_hw_blk *hw)
-{
-	return container_of(hw, struct dpu_hw_cdm, base);
-}
-
-/**
- * dpu_hw_cdm_init - initializes the cdm hw driver object.
- * should be called once before accessing every cdm.
- * @idx:  cdm index for which driver object is required
- * @addr: mapped register io address of MDP
- * @m :   pointer to mdss catalog data
- * @hw_mdp:  pointer to mdp top hw driver object
- */
-struct dpu_hw_cdm *dpu_hw_cdm_init(enum dpu_cdm idx,
-		void __iomem *addr,
-		struct dpu_mdss_cfg *m,
-		struct dpu_hw_mdp *hw_mdp);
-
-/**
- * dpu_hw_cdm_destroy - destroys CDM driver context
- * @cdm:   pointer to CDM driver context
- */
-void dpu_hw_cdm_destroy(struct dpu_hw_cdm *cdm);
-
-#endif /*_DPU_HW_CDM_H */

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c

@@ -224,19 +224,6 @@ static inline int dpu_hw_ctl_get_bitmask_intf(struct dpu_hw_ctl *ctx,
 	return 0;
 }
 
-static inline int dpu_hw_ctl_get_bitmask_cdm(struct dpu_hw_ctl *ctx,
-		u32 *flushbits, enum dpu_cdm cdm)
-{
-	switch (cdm) {
-	case CDM_0:
-		*flushbits |= BIT(26);
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
 static u32 dpu_hw_ctl_poll_reset_status(struct dpu_hw_ctl *ctx, u32 timeout_us)
 {
 	struct dpu_hw_blk_reg_map *c = &ctx->hw;
@@ -485,7 +472,6 @@ static void _setup_ctl_ops(struct dpu_hw_ctl_ops *ops,
 	ops->get_bitmask_sspp = dpu_hw_ctl_get_bitmask_sspp;
 	ops->get_bitmask_mixer = dpu_hw_ctl_get_bitmask_mixer;
 	ops->get_bitmask_intf = dpu_hw_ctl_get_bitmask_intf;
-	ops->get_bitmask_cdm = dpu_hw_ctl_get_bitmask_cdm;
 };
 
 static struct dpu_hw_blk_ops dpu_hw_ops = {

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h

@@ -142,10 +142,6 @@ struct dpu_hw_ctl_ops {
 		u32 *flushbits,
 		enum dpu_intf blk);
 
-	int (*get_bitmask_cdm)(struct dpu_hw_ctl *ctx,
-		u32 *flushbits,
-		enum dpu_cdm blk);
-
 	/**
 	 * Set all blend stages to disabled
 	 * @ctx       : ctl path ctx pointer

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h

@@ -100,7 +100,6 @@ enum dpu_hw_blk_type {
 	DPU_HW_BLK_SSPP,
 	DPU_HW_BLK_LM,
 	DPU_HW_BLK_CTL,
-	DPU_HW_BLK_CDM,
 	DPU_HW_BLK_PINGPONG,
 	DPU_HW_BLK_INTF,
 	DPU_HW_BLK_WB,
@@ -182,12 +181,6 @@ enum dpu_ctl {
 	CTL_MAX
 };
 
-enum dpu_cdm {
-	CDM_0 = 1,
-	CDM_1,
-	CDM_MAX
-};
-
 enum dpu_pingpong {
 	PINGPONG_0 = 1,
 	PINGPONG_1,
@@ -444,15 +437,14 @@ struct dpu_mdss_color {
  * Define bit masks for h/w logging.
  */
 #define DPU_DBG_MASK_NONE     (1 << 0)
-#define DPU_DBG_MASK_CDM      (1 << 1)
-#define DPU_DBG_MASK_INTF     (1 << 2)
-#define DPU_DBG_MASK_LM       (1 << 3)
-#define DPU_DBG_MASK_CTL      (1 << 4)
-#define DPU_DBG_MASK_PINGPONG (1 << 5)
-#define DPU_DBG_MASK_SSPP     (1 << 6)
-#define DPU_DBG_MASK_WB       (1 << 7)
-#define DPU_DBG_MASK_TOP      (1 << 8)
-#define DPU_DBG_MASK_VBIF     (1 << 9)
-#define DPU_DBG_MASK_ROT      (1 << 10)
+#define DPU_DBG_MASK_INTF     (1 << 1)
+#define DPU_DBG_MASK_LM       (1 << 2)
+#define DPU_DBG_MASK_CTL      (1 << 3)
+#define DPU_DBG_MASK_PINGPONG (1 << 4)
+#define DPU_DBG_MASK_SSPP     (1 << 5)
+#define DPU_DBG_MASK_WB       (1 << 6)
+#define DPU_DBG_MASK_TOP      (1 << 7)
+#define DPU_DBG_MASK_VBIF     (1 << 8)
+#define DPU_DBG_MASK_ROT      (1 << 9)
 
 #endif  /* _DPU_HW_MDSS_H */

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c

@@ -98,23 +98,6 @@ static void dpu_hw_setup_split_pipe(struct dpu_hw_mdp *mdp,
 	DPU_REG_WRITE(c, SPLIT_DISPLAY_EN, cfg->en & 0x1);
 }
 
-static void dpu_hw_setup_cdm_output(struct dpu_hw_mdp *mdp,
-		struct cdm_output_cfg *cfg)
-{
-	struct dpu_hw_blk_reg_map *c;
-	u32 out_ctl = 0;
-
-	if (!mdp || !cfg)
-		return;
-
-	c = &mdp->hw;
-
-	if (cfg->intf_en)
-		out_ctl |= BIT(19);
-
-	DPU_REG_WRITE(c, MDP_OUT_CTL_0, out_ctl);
-}
-
 static bool dpu_hw_setup_clk_force_ctrl(struct dpu_hw_mdp *mdp,
 		enum dpu_clk_ctrl_type clk_ctrl, bool enable)
 {
@@ -307,7 +290,6 @@ static void _setup_mdp_ops(struct dpu_hw_mdp_ops *ops,
 		unsigned long cap)
 {
 	ops->setup_split_pipe = dpu_hw_setup_split_pipe;
-	ops->setup_cdm_output = dpu_hw_setup_cdm_output;
 	ops->setup_clk_force_ctrl = dpu_hw_setup_clk_force_ctrl;
 	ops->get_danger_status = dpu_hw_get_danger_status;
 	ops->setup_vsync_source = dpu_hw_setup_vsync_source;

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h

@@ -51,14 +51,6 @@ struct split_pipe_cfg {
 	bool split_flush_en;
 };
 
-/**
- * struct cdm_output_cfg: output configuration for cdm
- * @intf_en   : enable/disable interface output
- */
-struct cdm_output_cfg {
-	bool intf_en;
-};
-
 /**
  * struct dpu_danger_safe_status: danger and safe status signals
  * @mdp: top level status
@@ -89,7 +81,6 @@ struct dpu_vsync_source_cfg {
  * Assumption is these functions will be called after clocks are enabled.
  * @setup_split_pipe : Programs the pipe control registers
  * @setup_pp_split : Programs the pp split control registers
- * @setup_cdm_output : programs cdm control
  * @setup_traffic_shaper : programs traffic shaper control
  */
 struct dpu_hw_mdp_ops {
@@ -101,14 +92,6 @@ struct dpu_hw_mdp_ops {
 	void (*setup_split_pipe)(struct dpu_hw_mdp *mdp,
 			struct split_pipe_cfg *p);
 
-	/**
-	 * setup_cdm_output() : Setup selection control of the cdm data path
-	 * @mdp  : mdp top context driver
-	 * @cfg  : cdm output configuration
-	 */
-	void (*setup_cdm_output)(struct dpu_hw_mdp *mdp,
-			struct cdm_output_cfg *cfg);
-
 	/**
 	 * setup_traffic_shaper() : Setup traffic shaper control
 	 * @mdp  : mdp top context driver

drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c

@@ -16,7 +16,6 @@
 #include "dpu_kms.h"
 #include "dpu_hw_lm.h"
 #include "dpu_hw_ctl.h"
-#include "dpu_hw_cdm.h"
 #include "dpu_hw_pingpong.h"
 #include "dpu_hw_intf.h"
 #include "dpu_encoder.h"
@@ -228,9 +227,6 @@ static void _dpu_rm_hw_destroy(enum dpu_hw_blk_type type, void *hw)
 	case DPU_HW_BLK_CTL:
 		dpu_hw_ctl_destroy(hw);
 		break;
-	case DPU_HW_BLK_CDM:
-		dpu_hw_cdm_destroy(hw);
-		break;
 	case DPU_HW_BLK_PINGPONG:
 		dpu_hw_pingpong_destroy(hw);
 		break;
@@ -304,9 +300,6 @@ static int _dpu_rm_hw_blk_create(
 	case DPU_HW_BLK_CTL:
 		hw = dpu_hw_ctl_init(id, mmio, cat);
 		break;
-	case DPU_HW_BLK_CDM:
-		hw = dpu_hw_cdm_init(id, mmio, cat, hw_mdp);
-		break;
 	case DPU_HW_BLK_PINGPONG:
 		hw = dpu_hw_pingpong_init(id, mmio, cat);
 		break;
@@ -437,15 +430,6 @@ int dpu_rm_init(struct dpu_rm *rm,
 		}
 	}
 
-	for (i = 0; i < cat->cdm_count; i++) {
-		rc = _dpu_rm_hw_blk_create(rm, cat, mmio, DPU_HW_BLK_CDM,
-				cat->cdm[i].id, &cat->cdm[i]);
-		if (rc) {
-			DPU_ERROR("failed: cdm hw not available\n");
-			goto fail;
-		}
-	}
-
 	return 0;
 
 fail:
@@ -642,55 +626,11 @@ static int _dpu_rm_reserve_ctls(
 	return 0;
 }
 
-static int _dpu_rm_reserve_cdm(
-		struct dpu_rm *rm,
-		struct dpu_rm_rsvp *rsvp,
-		uint32_t id,
-		enum dpu_hw_blk_type type)
-{
-	struct dpu_rm_hw_iter iter;
-
-	DRM_DEBUG_KMS("type %d id %d\n", type, id);
-
-	dpu_rm_init_hw_iter(&iter, 0, DPU_HW_BLK_CDM);
-	while (_dpu_rm_get_hw_locked(rm, &iter)) {
-		const struct dpu_hw_cdm *cdm = to_dpu_hw_cdm(iter.blk->hw);
-		const struct dpu_cdm_cfg *caps = cdm->caps;
-		bool match = false;
-
-		if (RESERVED_BY_OTHER(iter.blk, rsvp))
-			continue;
-
-		if (type == DPU_HW_BLK_INTF && id != INTF_MAX)
-			match = test_bit(id, &caps->intf_connect);
-
-		DRM_DEBUG_KMS("iter: type:%d id:%d enc:%d cdm:%lu match:%d\n",
-			      iter.blk->type, iter.blk->id, rsvp->enc_id,
-			      caps->intf_connect, match);
-
-		if (!match)
-			continue;
-
-		trace_dpu_rm_reserve_cdm(iter.blk->id, iter.blk->type,
-					 rsvp->enc_id);
-		iter.blk->rsvp_nxt = rsvp;
-		break;
-	}
-
-	if (!iter.hw) {
-		DPU_ERROR("couldn't reserve cdm for type %d id %d\n", type, id);
-		return -ENAVAIL;
-	}
-
-	return 0;
-}
-
 static int _dpu_rm_reserve_intf(
 		struct dpu_rm *rm,
 		struct dpu_rm_rsvp *rsvp,
 		uint32_t id,
-		enum dpu_hw_blk_type type,
-		bool needs_cdm)
+		enum dpu_hw_blk_type type)
 {
 	struct dpu_rm_hw_iter iter;
 	int ret = 0;
@@ -718,9 +658,6 @@ static int _dpu_rm_reserve_intf(
 		return -EINVAL;
 	}
 
-	if (needs_cdm)
-		ret = _dpu_rm_reserve_cdm(rm, rsvp, id, type);
-
 	return ret;
 }
 
@@ -737,7 +674,7 @@ static int _dpu_rm_reserve_intf_related_hw(
 			continue;
 		id = i + INTF_0;
 		ret = _dpu_rm_reserve_intf(rm, rsvp, id,
-				DPU_HW_BLK_INTF, hw_res->needs_cdm);
+				DPU_HW_BLK_INTF);
 		if (ret)
 			return ret;
 	}
@@ -784,7 +721,6 @@ static int _dpu_rm_make_next_rsvp(
 		return ret;
 	}
 
-	/* Assign INTFs and blks whose usage is tied to them: CTL & CDM */
 	ret = _dpu_rm_reserve_intf_related_hw(rm, rsvp, &reqs->hw_res);
 	if (ret)
 		return ret;

drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h

@@ -868,10 +868,6 @@ DECLARE_EVENT_CLASS(dpu_rm_iter_template,
 	TP_printk("id:%d type:%d enc_id:%u", __entry->id, __entry->type,
 		  __entry->enc_id)
 );
-DEFINE_EVENT(dpu_rm_iter_template, dpu_rm_reserve_cdm,
-	TP_PROTO(uint32_t id, enum dpu_hw_blk_type type, uint32_t enc_id),
-	TP_ARGS(id, type, enc_id)
-);
 DEFINE_EVENT(dpu_rm_iter_template, dpu_rm_reserve_intf,
 	TP_PROTO(uint32_t id, enum dpu_hw_blk_type type, uint32_t enc_id),
 	TP_ARGS(id, type, enc_id)