disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c
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..
@@ -1,13 +1,5 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 and
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- * only version 2 as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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3
  */
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4
 
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 #include "dpu_kms.h"
..
..
@@ -15,8 +7,6 @@
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 #include "dpu_hwio.h"
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 #include "dpu_hw_lm.h"
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 #include "dpu_hw_mdss.h"
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-#include "dpu_dbg.h"
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-#include "dpu_kms.h"
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10
 
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 #define LM_OP_MODE                        0x00
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 #define LM_OUT_SIZE                       0x04
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..
@@ -34,11 +24,8 @@
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 #define LM_BLEND0_FG_ALPHA               0x04
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 #define LM_BLEND0_BG_ALPHA               0x08
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-#define LM_MISR_CTRL			0x310
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-#define LM_MISR_SIGNATURE		0x314
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-
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-static struct dpu_lm_cfg *_lm_offset(enum dpu_lm mixer,
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-		struct dpu_mdss_cfg *m,
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+static const struct dpu_lm_cfg *_lm_offset(enum dpu_lm mixer,
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+		const struct dpu_mdss_cfg *m,
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 		void __iomem *addr,
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 		struct dpu_hw_blk_reg_map *b)
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 {
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@@ -67,16 +54,10 @@
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 static inline int _stage_offset(struct dpu_hw_mixer *ctx, enum dpu_stage stage)
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 {
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 	const struct dpu_lm_sub_blks *sblk = ctx->cap->sblk;
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-	int rc;
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+	if (stage != DPU_STAGE_BASE && stage <= sblk->maxblendstages)
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+		return sblk->blendstage_base[stage - DPU_STAGE_0];
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-	if (stage == DPU_STAGE_BASE)
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-		rc = -EINVAL;
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-	else if (stage <= sblk->maxblendstages)
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-		rc = sblk->blendstage_base[stage - DPU_STAGE_0];
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-	else
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-		rc = -EINVAL;
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-
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-	return rc;
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+	return -EINVAL;
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 }
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62
 
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 static void dpu_hw_lm_setup_out(struct dpu_hw_mixer *ctx,
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@@ -166,63 +147,27 @@
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 	DPU_REG_WRITE(c, LM_OP_MODE, op_mode);
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 }
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-static void dpu_hw_lm_gc(struct dpu_hw_mixer *mixer,
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-			void *cfg)
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-{
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-}
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-
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-static void dpu_hw_lm_setup_misr(struct dpu_hw_mixer *ctx,
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-				bool enable, u32 frame_count)
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-{
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-	struct dpu_hw_blk_reg_map *c = &ctx->hw;
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-	u32 config = 0;
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-
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-	DPU_REG_WRITE(c, LM_MISR_CTRL, MISR_CTRL_STATUS_CLEAR);
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-	/* clear misr data */
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-	wmb();
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-
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-	if (enable)
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-		config = (frame_count & MISR_FRAME_COUNT_MASK) |
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-			MISR_CTRL_ENABLE | INTF_MISR_CTRL_FREE_RUN_MASK;
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-
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-	DPU_REG_WRITE(c, LM_MISR_CTRL, config);
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-}
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-
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-static u32 dpu_hw_lm_collect_misr(struct dpu_hw_mixer *ctx)
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-{
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-	struct dpu_hw_blk_reg_map *c = &ctx->hw;
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-
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-	return DPU_REG_READ(c, LM_MISR_SIGNATURE);
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-}
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-
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-static void _setup_mixer_ops(struct dpu_mdss_cfg *m,
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+static void _setup_mixer_ops(const struct dpu_mdss_cfg *m,
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 		struct dpu_hw_lm_ops *ops,
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 		unsigned long features)
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 {
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 	ops->setup_mixer_out = dpu_hw_lm_setup_out;
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-	if (IS_SDM845_TARGET(m->hwversion) || IS_SDM670_TARGET(m->hwversion))
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+	if (m->hwversion >= DPU_HW_VER_400)
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 		ops->setup_blend_config = dpu_hw_lm_setup_blend_config_sdm845;
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 	else
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 		ops->setup_blend_config = dpu_hw_lm_setup_blend_config;
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 	ops->setup_alpha_out = dpu_hw_lm_setup_color3;
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 	ops->setup_border_color = dpu_hw_lm_setup_border_color;
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-	ops->setup_gc = dpu_hw_lm_gc;
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-	ops->setup_misr = dpu_hw_lm_setup_misr;
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-	ops->collect_misr = dpu_hw_lm_collect_misr;
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-};
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+}
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162
 
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-static struct dpu_hw_blk_ops dpu_hw_ops = {
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-	.start = NULL,
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-	.stop = NULL,
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-};
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+static struct dpu_hw_blk_ops dpu_hw_ops;
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 struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx,
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 		void __iomem *addr,
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-		struct dpu_mdss_cfg *m)
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+		const struct dpu_mdss_cfg *m)
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 {
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 	struct dpu_hw_mixer *c;
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-	struct dpu_lm_cfg *cfg;
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-	int rc;
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+	const struct dpu_lm_cfg *cfg;
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 	c = kzalloc(sizeof(*c), GFP_KERNEL);
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 	if (!c)
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@@ -239,18 +184,9 @@
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 	c->cap = cfg;
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 	_setup_mixer_ops(m, &c->ops, c->cap->features);
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-	rc = dpu_hw_blk_init(&c->base, DPU_HW_BLK_LM, idx, &dpu_hw_ops);
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-	if (rc) {
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-		DPU_ERROR("failed to init hw blk %d\n", rc);
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-		goto blk_init_error;
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-	}
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+	dpu_hw_blk_init(&c->base, DPU_HW_BLK_LM, idx, &dpu_hw_ops);
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188
 
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 	return c;
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-
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-blk_init_error:
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-	kzfree(c);
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-
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-	return ERR_PTR(rc);
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 }
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191
 
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 void dpu_hw_lm_destroy(struct dpu_hw_mixer *lm)