Lines Matching +full:gfx +full:- +full:mem
1 // SPDX-License-Identifier: GPL-2.0+
5 #include <linux/dma-mapping.h>
31 * DOC: ASPEED GFX Driver
33 * This driver is for the ASPEED BMC SoC's 'GFX' display hardware, also called
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; in aspeed_gfx_setup_mode_config()
116 drm->mode_config.min_height = 0; in aspeed_gfx_setup_mode_config()
117 drm->mode_config.max_width = 800; in aspeed_gfx_setup_mode_config()
118 drm->mode_config.max_height = 600; in aspeed_gfx_setup_mode_config()
119 drm->mode_config.funcs = &aspeed_gfx_mode_config_funcs; in aspeed_gfx_setup_mode_config()
130 reg = readl(priv->base + CRT_CTRL1); in aspeed_gfx_irq_handler()
133 drm_crtc_handle_vblank(&priv->pipe.crtc); in aspeed_gfx_irq_handler()
134 writel(reg, priv->base + priv->int_clr_reg); in aspeed_gfx_irq_handler()
143 struct platform_device *pdev = to_platform_device(drm->dev); in aspeed_gfx_load()
145 struct device_node *np = pdev->dev.of_node; in aspeed_gfx_load()
151 priv->base = devm_ioremap_resource(drm->dev, res); in aspeed_gfx_load()
152 if (IS_ERR(priv->base)) in aspeed_gfx_load()
153 return PTR_ERR(priv->base); in aspeed_gfx_load()
155 config = device_get_match_data(&pdev->dev); in aspeed_gfx_load()
157 return -EINVAL; in aspeed_gfx_load()
159 priv->dac_reg = config->dac_reg; in aspeed_gfx_load()
160 priv->int_clr_reg = config->int_clear_reg; in aspeed_gfx_load()
161 priv->vga_scratch_reg = config->vga_scratch_reg; in aspeed_gfx_load()
162 priv->throd_val = config->throd_val; in aspeed_gfx_load()
163 priv->scan_line_max = config->scan_line_max; in aspeed_gfx_load()
165 priv->scu = syscon_regmap_lookup_by_phandle(np, "syscon"); in aspeed_gfx_load()
166 if (IS_ERR(priv->scu)) { in aspeed_gfx_load()
167 priv->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2500-scu"); in aspeed_gfx_load()
168 if (IS_ERR(priv->scu)) { in aspeed_gfx_load()
169 dev_err(&pdev->dev, "failed to find SCU regmap\n"); in aspeed_gfx_load()
170 return PTR_ERR(priv->scu); in aspeed_gfx_load()
174 ret = of_reserved_mem_device_init(drm->dev); in aspeed_gfx_load()
176 dev_err(&pdev->dev, in aspeed_gfx_load()
177 "failed to initialize reserved mem: %d\n", ret); in aspeed_gfx_load()
181 ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32)); in aspeed_gfx_load()
183 dev_err(&pdev->dev, "failed to set DMA mask: %d\n", ret); in aspeed_gfx_load()
187 priv->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL); in aspeed_gfx_load()
188 if (IS_ERR(priv->rst)) { in aspeed_gfx_load()
189 dev_err(&pdev->dev, in aspeed_gfx_load()
191 return PTR_ERR(priv->rst); in aspeed_gfx_load()
193 reset_control_deassert(priv->rst); in aspeed_gfx_load()
195 priv->clk = devm_clk_get(drm->dev, NULL); in aspeed_gfx_load()
196 if (IS_ERR(priv->clk)) { in aspeed_gfx_load()
197 dev_err(&pdev->dev, in aspeed_gfx_load()
199 return PTR_ERR(priv->clk); in aspeed_gfx_load()
201 clk_prepare_enable(priv->clk); in aspeed_gfx_load()
204 writel(0, priv->base + CRT_CTRL1); in aspeed_gfx_load()
205 writel(0, priv->base + CRT_CTRL2); in aspeed_gfx_load()
213 dev_err(drm->dev, "Failed to initialise vblank\n"); in aspeed_gfx_load()
219 dev_err(drm->dev, "Failed to create outputs\n"); in aspeed_gfx_load()
225 dev_err(drm->dev, "Cannot setup simple display pipe\n"); in aspeed_gfx_load()
229 ret = devm_request_irq(drm->dev, platform_get_irq(pdev, 0), in aspeed_gfx_load()
230 aspeed_gfx_irq_handler, 0, "aspeed gfx", drm); in aspeed_gfx_load()
232 dev_err(drm->dev, "Failed to install IRQ handler\n"); in aspeed_gfx_load()
253 .name = "aspeed-gfx-drm",
254 .desc = "ASPEED GFX DRM",
271 return -EINVAL; in dac_mux_store()
273 rc = regmap_update_bits(priv->scu, priv->dac_reg, 0x30000, val << 16); in dac_mux_store()
286 rc = regmap_read(priv->scu, priv->dac_reg, ®); in dac_mux_show()
301 rc = regmap_read(priv->scu, priv->vga_scratch_reg, ®); in vga_pw_show()
324 priv = devm_drm_dev_alloc(&pdev->dev, &aspeed_gfx_driver, in aspeed_gfx_probe()
329 ret = aspeed_gfx_load(&priv->drm); in aspeed_gfx_probe()
335 ret = sysfs_create_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); in aspeed_gfx_probe()
339 ret = drm_dev_register(&priv->drm, 0); in aspeed_gfx_probe()
343 drm_client_setup(&priv->drm, NULL); in aspeed_gfx_probe()
347 sysfs_remove_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); in aspeed_gfx_probe()
348 aspeed_gfx_unload(&priv->drm); in aspeed_gfx_probe()
357 sysfs_remove_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); in aspeed_gfx_remove()