1 // SPDX-License-Identifier: GPL-2.0
34 #define PPI_D0S_CLRSIPOCOUNT	0x0164 /* Assertion timer for Lane 0 */
35 #define PPI_D1S_CLRSIPOCOUNT	0x0168 /* Assertion timer for Lane 1 */
39 #define DSI_STARTDSI		0x0204 /* START control bit of DSI-TX */
40 #define DSI_LANEENABLE		0x0210 /* Enables each lane */
56 /* Lane enable PPI and DSI register bits */
72 	int ret = ctx->error;  in tc358762_clear_error()
74 	ctx->error = 0;  in tc358762_clear_error()
80 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in tc358762_write()
84 	if (ctx->error)  in tc358762_write()
96 		ctx->error = ret;  in tc358762_write()
136 	if (!ctx->pre_enabled)  in tc358762_post_disable()
139 	ctx->pre_enabled = false;  in tc358762_post_disable()
141 	ret = regulator_disable(ctx->regulator);  in tc358762_post_disable()
143 		dev_err(ctx->dev, "error disabling regulators (%d)\n", ret);  in tc358762_post_disable()
151 	ret = regulator_enable(ctx->regulator);  in tc358762_pre_enable()
153 		dev_err(ctx->dev, "error enabling regulators (%d)\n", ret);  in tc358762_pre_enable()
157 		dev_err(ctx->dev, "error initializing bridge (%d)\n", ret);  in tc358762_pre_enable()
159 	ctx->pre_enabled = true;  in tc358762_pre_enable()
167 	return drm_bridge_attach(bridge->encoder, ctx->panel_bridge,  in tc358762_attach()
180 	struct device *dev = ctx->dev;  in tc358762_parse_dt()
182 	panel_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 1, 0);  in tc358762_parse_dt()
186 	ctx->panel_bridge = panel_bridge;  in tc358762_parse_dt()
193 	ctx->regulator = devm_regulator_get(ctx->dev, "vddc");  in tc358762_configure_regulators()
194 	if (IS_ERR(ctx->regulator))  in tc358762_configure_regulators()
195 		return PTR_ERR(ctx->regulator);  in tc358762_configure_regulators()
202 	struct device *dev = &dsi->dev;  in tc358762_probe()
208 		return -ENOMEM;  in tc358762_probe()
212 	ctx->dev = dev;  in tc358762_probe()
213 	ctx->pre_enabled = false;  in tc358762_probe()
215 	/* TODO: Find out how to get dual-lane mode working */  in tc358762_probe()
216 	dsi->lanes = 1;  in tc358762_probe()
217 	dsi->format = MIPI_DSI_FMT_RGB888;  in tc358762_probe()
218 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |  in tc358762_probe()
229 	ctx->bridge.funcs = &tc358762_bridge_funcs;  in tc358762_probe()
230 	ctx->bridge.type = DRM_MODE_CONNECTOR_DPI;  in tc358762_probe()
231 	ctx->bridge.of_node = dev->of_node;  in tc358762_probe()
233 	drm_bridge_add(&ctx->bridge);  in tc358762_probe()
237 		drm_bridge_remove(&ctx->bridge);  in tc358762_probe()
249 	drm_bridge_remove(&ctx->bridge);  in tc358762_remove()
269 MODULE_DESCRIPTION("MIPI-DSI based Driver for TC358762 DSI/DPI Bridge");