drm/msm/dp: drop dp_parser

Finally drop separate "parsing" submodule. There is no need in it
anymore. All submodules handle DT properties directly rather than
passing them via the separate structure pointer.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/576116/
Link: https://lore.kernel.org/r/20240126-dp-power-parser-cleanup-v3-15-098d5f581dd3@linaro.org

drivers/gpu/drm/msm/Makefile

@@ -127,7 +127,6 @@ msm-$(CONFIG_DRM_MSM_DP)+= dp/dp_aux.o \
 	dp/dp_drm.o \
 	dp/dp_link.o \
 	dp/dp_panel.o \
-	dp/dp_parser.o \
 	dp/dp_audio.o
 
 msm-$(CONFIG_DRM_FBDEV_EMULATION) += msm_fbdev.o

drivers/gpu/drm/msm/dp/dp_aux.h

@@ -16,6 +16,7 @@ void dp_aux_init(struct drm_dp_aux *dp_aux);
 void dp_aux_deinit(struct drm_dp_aux *dp_aux);
 void dp_aux_reconfig(struct drm_dp_aux *dp_aux);
 
+struct phy;
 struct drm_dp_aux *dp_aux_get(struct device *dev, struct dp_catalog *catalog,
 			      struct phy *phy,
 			      bool is_edp);

drivers/gpu/drm/msm/dp/dp_catalog.h

@@ -8,7 +8,6 @@
 
 #include <drm/drm_modes.h>
 
-#include "dp_parser.h"
 #include "disp/msm_disp_snapshot.h"
 
 /* interrupts */

drivers/gpu/drm/msm/dp/dp_ctrl.h

@@ -9,7 +9,6 @@
 #include "dp_aux.h"
 #include "dp_panel.h"
 #include "dp_link.h"
-#include "dp_parser.h"
 #include "dp_catalog.h"
 
 struct dp_ctrl {
@@ -17,6 +16,8 @@ struct dp_ctrl {
 	bool wide_bus_en;
 };
 
+struct phy;
+
 int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl);
 int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl, bool force_link_train);
 void dp_ctrl_off_link_stream(struct dp_ctrl *dp_ctrl);

drivers/gpu/drm/msm/dp/dp_debug.c

@@ -9,7 +9,6 @@
 #include <drm/drm_connector.h>
 #include <drm/drm_file.h>
 
-#include "dp_parser.h"
 #include "dp_catalog.h"
 #include "dp_aux.h"
 #include "dp_ctrl.h"

drivers/gpu/drm/msm/dp/dp_display.c

@@ -9,13 +9,13 @@
 #include <linux/debugfs.h>
 #include <linux/component.h>
 #include <linux/of_irq.h>
+#include <linux/phy/phy.h>
 #include <linux/delay.h>
 #include <drm/display/drm_dp_aux_bus.h>
 #include <drm/drm_edid.h>
 
 #include "msm_drv.h"
 #include "msm_kms.h"
-#include "dp_parser.h"
 #include "dp_ctrl.h"
 #include "dp_catalog.h"
 #include "dp_aux.h"
@@ -88,7 +88,6 @@ struct dp_display_private {
 	struct drm_device *drm_dev;
 	struct dentry *root;
 
-	struct dp_parser  *parser;
 	struct dp_catalog *catalog;
 	struct drm_dp_aux *aux;
 	struct dp_link    *link;
@@ -705,14 +704,11 @@ static int dp_init_sub_modules(struct dp_display_private *dp)
 	struct dp_panel_in panel_in = {
 		.dev = dev,
 	};
+	struct phy *phy;
 
-	dp->parser = dp_parser_get(dp->dp_display.pdev);
-	if (IS_ERR(dp->parser)) {
-		rc = PTR_ERR(dp->parser);
-		DRM_ERROR("failed to initialize parser, rc = %d\n", rc);
-		dp->parser = NULL;
-		goto error;
-	}
+	phy = devm_phy_get(dev, "dp");
+	if (IS_ERR(phy))
+		return PTR_ERR(phy);
 
 	dp->catalog = dp_catalog_get(dev);
 	if (IS_ERR(dp->catalog)) {
@@ -723,7 +719,7 @@ static int dp_init_sub_modules(struct dp_display_private *dp)
 	}
 
 	dp->aux = dp_aux_get(dev, dp->catalog,
-			     dp->parser->phy,
+			     phy,
 			     dp->dp_display.is_edp);
 	if (IS_ERR(dp->aux)) {
 		rc = PTR_ERR(dp->aux);
@@ -754,7 +750,7 @@ static int dp_init_sub_modules(struct dp_display_private *dp)
 
 	dp->ctrl = dp_ctrl_get(dev, dp->link, dp->panel, dp->aux,
 			       dp->catalog,
-			       dp->parser->phy);
+			       phy);
 	if (IS_ERR(dp->ctrl)) {
 		rc = PTR_ERR(dp->ctrl);
 		DRM_ERROR("failed to initialize ctrl, rc = %d\n", rc);

drivers/gpu/drm/msm/dp/dp_display.h

@@ -10,6 +10,8 @@
 #include <sound/hdmi-codec.h>
 #include "disp/msm_disp_snapshot.h"
 
+#define DP_MAX_PIXEL_CLK_KHZ	675000
+
 struct msm_dp {
 	struct drm_device *drm_dev;
 	struct platform_device *pdev;

drivers/gpu/drm/msm/dp/dp_parser.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
- */
-
-#include <linux/of_gpio.h>
-#include <linux/phy/phy.h>
-
-#include <drm/drm_of.h>
-#include <drm/drm_print.h>
-#include <drm/drm_bridge.h>
-
-#include "dp_parser.h"
-#include "dp_reg.h"
-
-static int dp_parser_ctrl_res(struct dp_parser *parser)
-{
-	struct platform_device *pdev = parser->pdev;
-
-	parser->phy = devm_phy_get(&pdev->dev, "dp");
-	if (IS_ERR(parser->phy))
-		return PTR_ERR(parser->phy);
-
-	return 0;
-}
-
-static int dp_parser_parse(struct dp_parser *parser)
-{
-	int rc = 0;
-
-	if (!parser) {
-		DRM_ERROR("invalid input\n");
-		return -EINVAL;
-	}
-
-	rc = dp_parser_ctrl_res(parser);
-	if (rc)
-		return rc;
-
-	return 0;
-}
-
-struct dp_parser *dp_parser_get(struct platform_device *pdev)
-{
-	struct dp_parser *parser;
-	int ret;
-
-	parser = devm_kzalloc(&pdev->dev, sizeof(*parser), GFP_KERNEL);
-	if (!parser)
-		return ERR_PTR(-ENOMEM);
-
-	parser->pdev = pdev;
-
-	ret = dp_parser_parse(parser);
-	if (ret) {
-		dev_err(&pdev->dev, "device tree parsing failed\n");
-		return ERR_PTR(ret);
-	}
-
-	return parser;
-}

drivers/gpu/drm/msm/dp/dp_parser.h

-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
- */
-
-#ifndef _DP_PARSER_H_
-#define _DP_PARSER_H_
-
-#include <linux/platform_device.h>
-
-#include "msm_drv.h"
-
-#define DP_MAX_PIXEL_CLK_KHZ	675000
-
-/**
- * struct dp_parser - DP parser's data exposed to clients
- *
- * @pdev: platform data of the client
- * @phy: PHY handle
- */
-struct dp_parser {
-	struct platform_device *pdev;
-	struct phy *phy;
-};
-
-/**
- * dp_parser_get() - get the DP's device tree parser module
- *
- * @pdev: platform data of the client
- * return: pointer to dp_parser structure.
- *
- * This function provides client capability to parse the
- * device tree and populate the data structures. The data
- * related to clock, regulators, pin-control and other
- * can be parsed using this module.
- */
-struct dp_parser *dp_parser_get(struct platform_device *pdev);
-
-#endif