target/linux/layerscape/patches-4.9/807-gpu-support-layerscape.patch

   1 From 4278a546526094dd57bfa3cf7ae2bf34092246db Mon Sep 17 00:00:00 2001
   2 From: Yangbo Lu <yangbo.lu@nxp.com>
   3 Date: Mon, 25 Sep 2017 12:10:01 +0800
   4 Subject: [PATCH] gpu: support layerscape
   5
   6 This is a integrated patch for layerscape dcu support.
   7
   8 Signed-off-by: Alison Wang <b18965@freescale.com>
   9 Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  10 ---
  11  drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 18 ++++++++++++++++--
  12  1 file changed, 16 insertions(+), 2 deletions(-)
  13
  14 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
  15 +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
  16 @@ -225,7 +225,6 @@ static int fsl_dcu_drm_pm_suspend(struct
  17         if (!fsl_dev)
  18                 return 0;
  19
  20 -       disable_irq(fsl_dev->irq);
  21         drm_kms_helper_poll_disable(fsl_dev->drm);
  22
  23         console_lock();
  24 @@ -243,6 +242,8 @@ static int fsl_dcu_drm_pm_suspend(struct
  25                 return PTR_ERR(fsl_dev->state);
  26         }
  27
  28 +       disable_irq(fsl_dev->irq);
  29 +
  30         clk_disable_unprepare(fsl_dev->pix_clk);
  31         clk_disable_unprepare(fsl_dev->clk);
  32
  33 @@ -263,6 +264,14 @@ static int fsl_dcu_drm_pm_resume(struct
  34                 return ret;
  35         }
  36
  37 +       ret = clk_prepare_enable(fsl_dev->pix_clk);
  38 +       if (ret < 0) {
  39 +               dev_err(dev, "failed to enable dcu pix clk\n");
  40 +               return ret;
  41 +       }
  42 +
  43 +       enable_irq(fsl_dev->irq);
  44 +
  45         if (fsl_dev->tcon)
  46                 fsl_tcon_bypass_enable(fsl_dev->tcon);
  47         fsl_dcu_drm_init_planes(fsl_dev->drm);
  48 @@ -273,7 +282,6 @@ static int fsl_dcu_drm_pm_resume(struct
  49         console_unlock();
  50
  51         drm_kms_helper_poll_enable(fsl_dev->drm);
  52 -       enable_irq(fsl_dev->irq);
  53
  54         return 0;
  55  }
  56 @@ -389,6 +397,12 @@ static int fsl_dcu_drm_probe(struct plat
  57                 goto disable_clk;
  58         }
  59
  60 +       ret = clk_prepare_enable(fsl_dev->pix_clk);
  61 +       if (ret < 0) {
  62 +               dev_err(dev, "failed to enable dcu pix clk\n");
  63 +               return ret;
  64 +       }
  65 +
  66         fsl_dev->tcon = fsl_tcon_init(dev);
  67
  68         drm = drm_dev_alloc(driver, dev);