drm/ingenic: Set DMA descriptor chain address in probe (e5507d2c) · Commits · 戴 / test

The address of the DMA descriptor never changes. It can therefore be set in the probe function. v2-v3: No change Signed-off-by:

drivers/gpu/drm/ingenic/ingenic-drm-drv.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -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");