The address of the DMA descriptor never changes. It can therefore be set
in the probe function.
Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
Notes:
v2: No change
drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 924c8daf071a..f7b0c5dc8cd8 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");
--
2.27.0
