diff mbox series

[07/12] gpu/drm: ingenic: Set DMA descriptor chain address in probe

Message ID 20200516215057.392609-7-paul@crapouillou.net (mailing list archive)
State New, archived
Headers show
Series [01/12] dt-bindings: display: Convert ingenic,lcd.txt to YAML | expand

Commit Message

Paul Cercueil May 16, 2020, 9:50 p.m. UTC 
The address of the DMA descriptor never changes. It can therefore be set
in the probe function.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 drivers/gpu/drm/ingenic/ingenic-drm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c
index 3207105755c9..e43318938e9e 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm.c
@@ -358,8 +358,6 @@  static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc,
 		ingenic_drm_crtc_update_ctrl(priv, finfo);
 
 		clk_set_rate(priv->pix_clk, state->adjusted_mode.clock * 1000);
-
-		regmap_write(priv->map, JZ_REG_LCD_DA0, priv->dma_hwdesc->next);
 	}
 
 	if (event) {
@@ -768,6 +766,9 @@  static int ingenic_drm_probe(struct platform_device *pdev)
 		}
 	}
 
+	/* Set address of our DMA descriptor chain */
+	regmap_write(priv->map, JZ_REG_LCD_DA0, priv->dma_hwdesc_phys);
+
 	ret = drm_dev_register(drm, 0);
 	if (ret) {
 		dev_err(dev, "Failed to register DRM driver");