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This patch is to add linux 4.9 support for layerscape. All these kernel patches are from NXP LSDK 1709 release. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
74 lines
1.9 KiB
Diff
74 lines
1.9 KiB
Diff
From 4278a546526094dd57bfa3cf7ae2bf34092246db Mon Sep 17 00:00:00 2001
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From: Yangbo Lu <yangbo.lu@nxp.com>
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Date: Mon, 25 Sep 2017 12:10:01 +0800
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Subject: [PATCH] gpu: support layerscape
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This is a integrated patch for layerscape dcu support.
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Signed-off-by: Alison Wang <b18965@freescale.com>
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Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
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---
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drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 18 ++++++++++++++++--
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1 file changed, 16 insertions(+), 2 deletions(-)
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diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
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index cc2fde2a..54f60ba1 100644
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--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
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+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
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@@ -225,7 +225,6 @@ static int fsl_dcu_drm_pm_suspend(struct device *dev)
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if (!fsl_dev)
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return 0;
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- disable_irq(fsl_dev->irq);
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drm_kms_helper_poll_disable(fsl_dev->drm);
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console_lock();
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@@ -243,6 +242,8 @@ static int fsl_dcu_drm_pm_suspend(struct device *dev)
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return PTR_ERR(fsl_dev->state);
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}
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+ disable_irq(fsl_dev->irq);
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+
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clk_disable_unprepare(fsl_dev->pix_clk);
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clk_disable_unprepare(fsl_dev->clk);
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@@ -263,6 +264,14 @@ static int fsl_dcu_drm_pm_resume(struct device *dev)
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return ret;
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}
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+ ret = clk_prepare_enable(fsl_dev->pix_clk);
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+ if (ret < 0) {
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+ dev_err(dev, "failed to enable dcu pix clk\n");
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+ return ret;
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+ }
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+
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+ enable_irq(fsl_dev->irq);
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+
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if (fsl_dev->tcon)
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fsl_tcon_bypass_enable(fsl_dev->tcon);
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fsl_dcu_drm_init_planes(fsl_dev->drm);
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@@ -273,7 +282,6 @@ static int fsl_dcu_drm_pm_resume(struct device *dev)
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console_unlock();
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drm_kms_helper_poll_enable(fsl_dev->drm);
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- enable_irq(fsl_dev->irq);
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return 0;
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}
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@@ -389,6 +397,12 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev)
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goto disable_clk;
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}
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+ ret = clk_prepare_enable(fsl_dev->pix_clk);
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+ if (ret < 0) {
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+ dev_err(dev, "failed to enable dcu pix clk\n");
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+ return ret;
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+ }
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+
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fsl_dev->tcon = fsl_tcon_init(dev);
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drm = drm_dev_alloc(driver, dev);
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--
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2.14.1
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