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()
149 priv->base = devm_platform_ioremap_resource(pdev, 0); in aspeed_gfx_load()
150 if (IS_ERR(priv->base)) in aspeed_gfx_load()
151 return PTR_ERR(priv->base); in aspeed_gfx_load()
153 config = device_get_match_data(&pdev->dev); in aspeed_gfx_load()
155 return -EINVAL; in aspeed_gfx_load()
157 priv->dac_reg = config->dac_reg; in aspeed_gfx_load()
158 priv->int_clr_reg = config->int_clear_reg; in aspeed_gfx_load()
159 priv->vga_scratch_reg = config->vga_scratch_reg; in aspeed_gfx_load()
160 priv->throd_val = config->throd_val; in aspeed_gfx_load()
161 priv->scan_line_max = config->scan_line_max; in aspeed_gfx_load()
163 priv->scu = syscon_regmap_lookup_by_phandle(np, "syscon"); in aspeed_gfx_load()
164 if (IS_ERR(priv->scu)) { in aspeed_gfx_load()
165 priv->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2500-scu"); in aspeed_gfx_load()
166 if (IS_ERR(priv->scu)) { in aspeed_gfx_load()
167 dev_err(&pdev->dev, "failed to find SCU regmap\n"); in aspeed_gfx_load()
168 return PTR_ERR(priv->scu); in aspeed_gfx_load()
172 ret = of_reserved_mem_device_init(drm->dev); in aspeed_gfx_load()
174 dev_err(&pdev->dev, in aspeed_gfx_load()
175 "failed to initialize reserved mem: %d\n", ret); in aspeed_gfx_load()
179 ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32)); in aspeed_gfx_load()
181 dev_err(&pdev->dev, "failed to set DMA mask: %d\n", ret); in aspeed_gfx_load()
185 priv->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL); in aspeed_gfx_load()
186 if (IS_ERR(priv->rst)) { in aspeed_gfx_load()
187 dev_err(&pdev->dev, in aspeed_gfx_load()
189 return PTR_ERR(priv->rst); in aspeed_gfx_load()
191 reset_control_deassert(priv->rst); in aspeed_gfx_load()
193 priv->clk = devm_clk_get(drm->dev, NULL); in aspeed_gfx_load()
194 if (IS_ERR(priv->clk)) { in aspeed_gfx_load()
195 dev_err(&pdev->dev, in aspeed_gfx_load()
197 return PTR_ERR(priv->clk); in aspeed_gfx_load()
199 clk_prepare_enable(priv->clk); in aspeed_gfx_load()
202 writel(0, priv->base + CRT_CTRL1); in aspeed_gfx_load()
203 writel(0, priv->base + CRT_CTRL2); in aspeed_gfx_load()
211 dev_err(drm->dev, "Failed to initialise vblank\n"); in aspeed_gfx_load()
217 dev_err(drm->dev, "Failed to create outputs\n"); in aspeed_gfx_load()
223 dev_err(drm->dev, "Cannot setup simple display pipe\n"); in aspeed_gfx_load()
227 ret = devm_request_irq(drm->dev, platform_get_irq(pdev, 0), in aspeed_gfx_load()
228 aspeed_gfx_irq_handler, 0, "aspeed gfx", drm); in aspeed_gfx_load()
230 dev_err(drm->dev, "Failed to install IRQ handler\n"); in aspeed_gfx_load()
251 .name = "aspeed-gfx-drm",
252 .desc = "ASPEED GFX DRM",
269 return -EINVAL; in dac_mux_store()
271 rc = regmap_update_bits(priv->scu, priv->dac_reg, 0x30000, val << 16); in dac_mux_store()
284 rc = regmap_read(priv->scu, priv->dac_reg, ®); in dac_mux_show()
299 rc = regmap_read(priv->scu, priv->vga_scratch_reg, ®); in vga_pw_show()
322 priv = devm_drm_dev_alloc(&pdev->dev, &aspeed_gfx_driver, in aspeed_gfx_probe()
327 ret = aspeed_gfx_load(&priv->drm); in aspeed_gfx_probe()
333 ret = sysfs_create_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); in aspeed_gfx_probe()
337 ret = drm_dev_register(&priv->drm, 0); in aspeed_gfx_probe()
341 drm_client_setup(&priv->drm, NULL); in aspeed_gfx_probe()
345 sysfs_remove_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); in aspeed_gfx_probe()
346 aspeed_gfx_unload(&priv->drm); in aspeed_gfx_probe()
355 sysfs_remove_group(&pdev->dev.kobj, &aspeed_sysfs_attr_group); in aspeed_gfx_remove()