disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/msm/disp/mdp5/mdp5_encoder.c
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..
@@ -1,23 +1,12 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (c) 2014, The Linux Foundation. All rights reserved.
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  * Copyright (C) 2013 Red Hat
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  * Author: Rob Clark <robdclark@gmail.com>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
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- * the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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7
 
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 #include <drm/drm_crtc.h>
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-#include <drm/drm_crtc_helper.h>
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+#include <drm/drm_probe_helper.h>
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 #include "mdp5_kms.h"
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12
 
..
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@@ -27,72 +16,9 @@
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 	return to_mdp5_kms(to_mdp_kms(priv->kms));
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 }
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-#ifdef DOWNSTREAM_CONFIG_MSM_BUS_SCALING
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-#include <mach/board.h>
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-#include <mach/msm_bus.h>
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-#include <mach/msm_bus_board.h>
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-#define MDP_BUS_VECTOR_ENTRY(ab_val, ib_val)		\
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-	{						\
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-		.src = MSM_BUS_MASTER_MDP_PORT0,	\
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-		.dst = MSM_BUS_SLAVE_EBI_CH0,		\
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-		.ab = (ab_val),				\
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-		.ib = (ib_val),				\
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-	}
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-
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-static struct msm_bus_vectors mdp_bus_vectors[] = {
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-	MDP_BUS_VECTOR_ENTRY(0, 0),
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-	MDP_BUS_VECTOR_ENTRY(2000000000, 2000000000),
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-};
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-static struct msm_bus_paths mdp_bus_usecases[] = { {
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-		.num_paths = 1,
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-		.vectors = &mdp_bus_vectors[0],
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-}, {
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-		.num_paths = 1,
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-		.vectors = &mdp_bus_vectors[1],
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-} };
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-static struct msm_bus_scale_pdata mdp_bus_scale_table = {
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-	.usecase = mdp_bus_usecases,
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-	.num_usecases = ARRAY_SIZE(mdp_bus_usecases),
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-	.name = "mdss_mdp",
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-};
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-
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-static void bs_init(struct mdp5_encoder *mdp5_encoder)
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-{
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-	mdp5_encoder->bsc = msm_bus_scale_register_client(
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-			&mdp_bus_scale_table);
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-	DBG("bus scale client: %08x", mdp5_encoder->bsc);
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-}
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-
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-static void bs_fini(struct mdp5_encoder *mdp5_encoder)
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-{
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-	if (mdp5_encoder->bsc) {
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-		msm_bus_scale_unregister_client(mdp5_encoder->bsc);
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-		mdp5_encoder->bsc = 0;
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-	}
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-}
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-
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-static void bs_set(struct mdp5_encoder *mdp5_encoder, int idx)
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-{
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-	if (mdp5_encoder->bsc) {
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-		DBG("set bus scaling: %d", idx);
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-		/* HACK: scaling down, and then immediately back up
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-		 * seems to leave things broken (underflow).. so
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-		 * never disable:
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-		 */
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-		idx = 1;
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-		msm_bus_scale_client_update_request(mdp5_encoder->bsc, idx);
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-	}
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-}
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-#else
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-static void bs_init(struct mdp5_encoder *mdp5_encoder) {}
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-static void bs_fini(struct mdp5_encoder *mdp5_encoder) {}
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-static void bs_set(struct mdp5_encoder *mdp5_encoder, int idx) {}
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-#endif
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-
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 static void mdp5_encoder_destroy(struct drm_encoder *encoder)
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 {
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 	struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
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-	bs_fini(mdp5_encoder);
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 	drm_encoder_cleanup(encoder);
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 	kfree(mdp5_encoder);
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 }
..
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@@ -118,14 +44,7 @@
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 	mode = adjusted_mode;
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-	DBG("set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
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-			mode->base.id, mode->name,
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-			mode->vrefresh, mode->clock,
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-			mode->hdisplay, mode->hsync_start,
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-			mode->hsync_end, mode->htotal,
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-			mode->vdisplay, mode->vsync_start,
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-			mode->vsync_end, mode->vtotal,
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-			mode->type, mode->flags);
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+	DBG("set mode: " DRM_MODE_FMT, DRM_MODE_ARG(mode));
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 	ctrl_pol = 0;
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..
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@@ -240,8 +159,6 @@
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 	 */
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 	mdp_irq_wait(&mdp5_kms->base, intf2vblank(mixer, intf));
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-	bs_set(mdp5_encoder, 0);
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-
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 	mdp5_encoder->enabled = false;
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 }
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@@ -258,7 +175,6 @@
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 	if (WARN_ON(mdp5_encoder->enabled))
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 		return;
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-	bs_set(mdp5_encoder, 1);
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 	spin_lock_irqsave(&mdp5_encoder->intf_lock, flags);
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 	mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intfn), 1);
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 	spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
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@@ -443,8 +359,6 @@
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 	drm_encoder_init(dev, encoder, &mdp5_encoder_funcs, enc_type, NULL);
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 	drm_encoder_helper_add(encoder, &mdp5_encoder_helper_funcs);
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-
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-	bs_init(mdp5_encoder);
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 	return encoder;
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