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

   1 From 177f92a14d8177124f37db0fafc11182e2dcdd62 Mon Sep 17 00:00:00 2001
   2 From: Yangbo Lu <yangbo.lu@nxp.com>
   3 Date: Wed, 17 Jan 2018 15:33:05 +0800
   4 Subject: [PATCH 19/30] gpu: support layerscape
   5
   6 This is an 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 | 15 ++++++++++++++-
  12  1 file changed, 14 insertions(+), 1 deletion(-)
  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->clk);
  31
  32         return 0;
  33 @@ -262,6 +263,12 @@ 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         if (fsl_dev->tcon)
  44                 fsl_tcon_bypass_enable(fsl_dev->tcon);
  45         fsl_dcu_drm_init_planes(fsl_dev->drm);
  46 @@ -388,6 +395,12 @@ static int fsl_dcu_drm_probe(struct plat
  47                 goto disable_clk;
  48         }
  49
  50 +       ret = clk_prepare_enable(fsl_dev->pix_clk);
  51 +       if (ret < 0) {
  52 +               dev_err(dev, "failed to enable dcu pix clk\n");
  53 +               return ret;
  54 +       }
  55 +
  56         fsl_dev->tcon = fsl_tcon_init(dev);
  57
  58         drm = drm_dev_alloc(driver, dev);