diff mbox series

[v3,06/12] drm/ingenic: Set DMA descriptor chain address in probe

Message ID 20200716163846.174790-6-paul@crapouillou.net (mailing list archive)
State New, archived
Headers show
Series [v3,01/12] drm/ingenic: Fix incorrect assumption about plane->index | expand

Commit Message

Paul Cercueil July 16, 2020, 4:38 p.m. UTC 
The address of the DMA descriptor never changes. It can therefore be set
in the probe function.

v2-v3: No change

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

Patch

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 9e845234c7b5..c769a54f0274 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.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) {
@@ -757,6 +755,9 @@  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\n");