target/linux/layerscape/patches-5.4/805-display-0047-MLK-18535-6-drm-imx-core-add-LCDIF-support.patch

   1 From 813cf104c571bf54e155d6be247c32a8f6aa3e2e Mon Sep 17 00:00:00 2001
   2 From: Fancy Fang <chen.fang@nxp.com>
   3 Date: Wed, 6 Jun 2018 23:20:43 +0800
   4 Subject: [PATCH] MLK-18535-6 drm/imx: core: add LCDIF support
   5
   6 Allows the LCDIF to be one of the supported client
   7 components. And set the 'legacyfb_depth' of LCDIF
   8 to be 32.
   9
  10 Signed-off-by: Fancy Fang <chen.fang@nxp.com>
  11 ---
  12  drivers/gpu/drm/imx/imx-drm-core.c | 13 +++++++++++++
  13  1 file changed, 13 insertions(+)
  14
  15 --- a/drivers/gpu/drm/imx/imx-drm-core.c
  16 +++ b/drivers/gpu/drm/imx/imx-drm-core.c
  17 @@ -12,6 +12,7 @@
  18  #include <linux/platform_device.h>
  19
  20  #include <video/imx-ipu-v3.h>
  21 +#include <video/imx-lcdif.h>
  22
  23  #include <drm/drm_atomic.h>
  24  #include <drm/drm_atomic_helper.h>
  25 @@ -188,6 +189,18 @@ static int compare_of(struct device *dev
  26                 struct dpu_client_platformdata *pdata = dev->platform_data;
  27
  28                 return pdata->of_node == np;
  29 +       } else if (strcmp(dev->driver->name, "imx-lcdif-crtc") == 0) {
  30 +               struct lcdif_client_platformdata *pdata = dev->platform_data;
  31 +#if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION)
  32 +               /* set legacyfb_depth to be 32 for lcdif, since
  33 +                * default format of the connectors attached to
  34 +                * lcdif is usually RGB888
  35 +                */
  36 +               if (pdata->of_node == np)
  37 +                       legacyfb_depth = 32;
  38 +#endif
  39 +
  40 +               return pdata->of_node == np;
  41         }
  42
  43         /* Special case for LDB, one device for two channels */