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From 177f92a14d8177124f37db0fafc11182e2dcdd62 Mon Sep 17 00:00:00 2001
From: Yangbo Lu <yangbo.lu@nxp.com>
Date: Wed, 17 Jan 2018 15:33:05 +0800
Subject: [PATCH 19/30] gpu: support layerscape
This is an integrated patch for layerscape dcu support.
Signed-off-by: Alison Wang <b18965@freescale.com>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
@@ -225,7 +225,6 @@ static int fsl_dcu_drm_pm_suspend(struct
if (!fsl_dev)
return 0;
- disable_irq(fsl_dev->irq);
drm_kms_helper_poll_disable(fsl_dev->drm);
console_lock();
@@ -243,6 +242,8 @@ static int fsl_dcu_drm_pm_suspend(struct
return PTR_ERR(fsl_dev->state);
}
+ disable_irq(fsl_dev->irq);
+
clk_disable_unprepare(fsl_dev->clk);
return 0;
@@ -262,6 +263,12 @@ static int fsl_dcu_drm_pm_resume(struct
return ret;
}
+ ret = clk_prepare_enable(fsl_dev->pix_clk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable dcu pix clk\n");
+ return ret;
+ }
+
if (fsl_dev->tcon)
fsl_tcon_bypass_enable(fsl_dev->tcon);
fsl_dcu_drm_init_planes(fsl_dev->drm);
@@ -388,6 +395,12 @@ static int fsl_dcu_drm_probe(struct plat
goto disable_clk;
}
+ ret = clk_prepare_enable(fsl_dev->pix_clk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable dcu pix clk\n");
+ return ret;
+ }
+
fsl_dev->tcon = fsl_tcon_init(dev);
drm = drm_dev_alloc(driver, dev);
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