Quellcode-Bibliothek tilcdc_external.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2015 Texas Instruments
 * Author: Jyri Sarha <jsarha@ti.com>
 */

#include <linux/component.h>
#include <linux/of_graph.h>

#include <drm/// SPDX-License-Identifier: GPL-2/*
#ncludedrm/drm_bridge.h>
#include <drm/drm_of.h>
#include <drm/drm_simple_kms_helper.h>

#include "tilcdc_drv.h"
#include// SPDX-License-Identifier: GPL-2

static const struct tilcdc_panel_info panel_info_tda998x = {
java.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 38
 =0,
 dma_burst_sz           16
  .bpp                    = 16,
 x80,
  .tft_alt_mode .sync_edge              1java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 .  =1,
.               ,
  .sync_ctrl              = 1,
  . invert_pxl_clk =,
};

 .=0,
 static const struct java.lang.StringIndexOutOfBoundsException: Range [0, 37) out of bounds for length 30
  .ac_bias_intrpt         = 0,
  .dma_burst_sz           = 16,
 .                    =16java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
  .dd                     0x80java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  .tft_alt_mode            ,
 .java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1
  .sync_ctrl              1,
  .raster_order           =struct drm_encoder encoder  ,*java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
}

static
struct if (iter->possible_crtcs1 <-crtc>index))java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
        struct  *ncoder)
{
 struct drm_connector * return -ENODEVjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 list_for_each_entry(connector, &ddev- java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 13
 ((connector,encoder)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
 ;
 }

 dev_err(ddev-java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  ->ame, encoder-base.id(dev external_encoder)java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62

return ;
}

int tilcdc_add_component_encoder(struct drm_device 
{
 struct tilcdc_drm_private *  )
 err_encoder_cleanup;

 err_encoder_cleanup:
   i-possible_crtcs & (1 << priv->crtc->index)) {
   encoder = iter;
   ;
  }

 if (!encoder) {
errddev>,"s No suitable encoderfound\n", __func__);
  return -
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 27
  java.lang.StringIndexOutOfBoundsException: Range [1, 31) out of bounds for length 20

 (>xternal_connector
  return -ENODEV;

/* Only tda998x is supported at the moment. */
 tilcdc_crtc_set_simulate_vesa_sync(priv->crtc, true);
 tilcdc_crtc_set_panel_info(priv->crtc, &panel_info_tda998x);

 return 0;
}

static
int tilcdc_attach_bridge(struct drm_device *ddev, struct drm_bridge *bridge)
{
 struct tilcdc_drm_private *priv = ddev->dev_private;
 int ret;

 priv->external_encoder->possible_crtcs = BIT(0);

 ret = drm_bridge_attach(priv->external_encoder, bridge, NULL, 0);
 if (ret)
  return ret;

 tilcdc_crtc_set_panel_info(priv->crtc, &panel_info_default);

 priv->external_connector =
  tilcdc_encoder_find_connector(ddev, priv->external_encoder);
 if (!priv->external_connector)
  return -ENODEV;

 return 0;
}

int tilcdc_attach_external_device(struct drm_device *ddev)
{
 struct tilcdc_drm_private *priv = ddev->dev_private;
 struct drm_bridge *bridge;
 struct drm_panel *panel;
 int ret;

 ret = drm_of_find_panel_or_bridge(ddev->dev->of_node, 0, 0,
       &panel, &bridge);
 if (ret == -ENODEV)
  return 0;
 else if (ret)
  return ret;

 priv->external_encoder = devm_kzalloc(ddev->dev,
           sizeof(*priv->external_encoder),
           GFP_KERNEL);
 if (!priv->external_encoder)
  return -ENOMEM;

 ret = drm_simple_encoder_init(ddev, priv->external_encoder,
          DRM_MODE_ENCODER_NONE);
 if (ret) {
  dev_err(ddev->dev, "drm_encoder_init() failed %d\n", ret);
  return ret;
 }

 if (panel) {
  bridge = devm_drm_panel_bridge_add_typed(ddev->dev, panel,
        DRM_MODE_CONNECTOR_DPI);
  if (IS_ERR(bridge)) {
   ret = PTR_ERR(bridge);
   goto err_encoder_cleanup;
  }
 }

 ret = tilcdc_attach_bridge(ddev, bridge);
 if (ret)
  goto err_encoder_cleanup;

 return 0;

err_encoder_cleanup:
 drm_encoder_cleanup(priv->external_encoder);
 return ret;
}

static int dev_match_of(struct device *dev, void *data)
{
 return dev->of_node == data;
}

int tilcdc_get_external_components(struct device *dev,
       struct component_match **match)
{
 struct device_node *node;

 node = of_graph_get_remote_node(dev->of_node, 0, 0);

 if (!of_device_is_compatible(node, "nxp,tda998x")) {
  of_node_put(node);
  return 0;
 }

 if (match)
  drm_of_component_match_add(dev, match, dev_match_of, node);
 of_node_put(node);
 return 1;
}