Lines Matching +full:ast2400 +full:- +full:scu
1 // SPDX-License-Identifier: GPL-2.0+
5 #include <linux/dma-mapping.h>
62 u32 dac_reg; /* DAC register in SCU */
64 u32 vga_scratch_reg; /* VGA scratch register in SCU */
94 { .compatible = "aspeed,ast2400-gfx", .data = &ast2400_config },
95 { .compatible = "aspeed,ast2500-gfx", .data = &ast2500_config },
96 { .compatible = "aspeed,ast2600-gfx", .data = &ast2600_config },
115 drm->mode_config.min_width = 0;
116 drm->mode_config.min_height = 0;
117 drm->mode_config.max_width = 800;
118 drm->mode_config.max_height = 600;
119 drm->mode_config.funcs = &aspeed_gfx_mode_config_funcs;
130 reg = readl(priv->base + CRT_CTRL1);
133 drm_crtc_handle_vblank(&priv->pipe.crtc);
134 writel(reg, priv->base + priv->int_clr_reg);
143 struct platform_device *pdev = to_platform_device(drm->dev);
145 struct device_node *np = pdev->dev.of_node;
149 priv->base = devm_platform_ioremap_resource(pdev, 0);
150 if (IS_ERR(priv->base))
151 return PTR_ERR(priv->base);
153 config = device_get_match_data(&pdev->dev);
155 return -EINVAL;
157 priv->dac_reg = config->dac_reg;
158 priv->int_clr_reg = config->int_clear_reg;
159 priv->vga_scratch_reg = config->vga_scratch_reg;
160 priv->throd_val = config->throd_val;
161 priv->scan_line_max = config->scan_line_max;
163 priv->scu = syscon_regmap_lookup_by_phandle(np, "syscon");
164 if (IS_ERR(priv->scu)) {
165 priv->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2500-scu");
166 if (IS_ERR(priv->scu)) {
167 dev_err(&pdev->dev, "failed to find SCU regmap\n");
168 return PTR_ERR(priv->scu);
172 ret = of_reserved_mem_device_init(drm->dev);
174 dev_err(&pdev->dev,
179 ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));
181 dev_err(&pdev->dev, "failed to set DMA mask: %d\n", ret);
185 priv->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
186 if (IS_ERR(priv->rst)) {
187 dev_err(&pdev->dev,
189 return PTR_ERR(priv->rst);
191 reset_control_deassert(priv->rst);
193 priv->clk = devm_clk_get(drm->dev, NULL);
194 if (IS_ERR(priv->clk)) {
195 dev_err(&pdev->dev,
197 return PTR_ERR(priv->clk);
199 clk_prepare_enable(priv->clk);
202 writel(0, priv->base + CRT_CTRL1);
203 writel(0, priv->base + CRT_CTRL2);
211 dev_err(drm->dev, "Failed to initialise vblank\n");
217 dev_err(drm->dev, "Failed to create outputs\n");
223 dev_err(drm->dev, "Cannot setup simple display pipe\n");
227 ret = devm_request_irq(drm->dev, platform_get_irq(pdev, 0),
230 dev_err(drm->dev, "Failed to install IRQ handler\n");
251 .name = "aspeed-gfx-drm",
269 return -EINVAL;
271 rc = regmap_update_bits(priv->scu, priv->dac_reg, 0x30000, val << 16);
284 rc = regmap_read(priv->scu, priv->dac_reg, ®);
299 rc = regmap_read(priv->scu, priv->vga_scratch_reg, ®);
322 priv = devm_drm_dev_alloc(&pdev->dev, &aspeed_gfx_driver,
327 ret = aspeed_gfx_load(&priv->drm);
333 ret = sysfs_create_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group);
337 ret = drm_dev_register(&priv->drm, 0);
341 drm_client_setup(&priv->drm, NULL);
345 sysfs_remove_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group);
346 aspeed_gfx_unload(&priv->drm);
355 sysfs_remove_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group);