26 #include "imx-ldb-helper.h"
36 #define DRIVER_NAME		"imx8qxp-ldb"
45 	struct ldb base;
60 static inline struct imx8qxp_ldb *base_to_imx8qxp_ldb(struct ldb *base)  in base_to_imx8qxp_ldb()
88 	struct ldb *ldb = ldb_ch->ldb;  in imx8qxp_ldb_bridge_atomic_check()  local
91 	struct imx8qxp_ldb *imx8qxp_ldb = base_to_imx8qxp_ldb(ldb);  in imx8qxp_ldb_bridge_atomic_check()
130 	struct ldb *ldb = ldb_ch->ldb;  in imx8qxp_ldb_bridge_mode_set()  local
133 	struct imx8qxp_ldb *imx8qxp_ldb = base_to_imx8qxp_ldb(ldb);  in imx8qxp_ldb_bridge_mode_set()
171 		ldb->ldb_ctrl &= ~LDB_CH_SEL;  in imx8qxp_ldb_bridge_mode_set()
173 		ldb->ldb_ctrl |= LDB_CH_SEL;  in imx8qxp_ldb_bridge_mode_set()
177 		ldb->ldb_ctrl |= LDB_DI0_VS_POL_ACT_LOW;  in imx8qxp_ldb_bridge_mode_set()
179 		ldb->ldb_ctrl |= LDB_DI1_VS_POL_ACT_LOW;  in imx8qxp_ldb_bridge_mode_set()
186 		regmap_write(ldb->regmap, ldb->ctrl_reg, ldb->ldb_ctrl);  in imx8qxp_ldb_bridge_mode_set()
191 		regmap_update_bits(ldb->regmap, SS_CTRL, CH_VSYNC_M(chno), 0);  in imx8qxp_ldb_bridge_mode_set()
193 		regmap_update_bits(ldb->regmap, SS_CTRL,  in imx8qxp_ldb_bridge_mode_set()
197 		regmap_update_bits(ldb->regmap, SS_CTRL, CH_HSYNC_M(chno), 0);  in imx8qxp_ldb_bridge_mode_set()
199 		regmap_update_bits(ldb->regmap, SS_CTRL,  in imx8qxp_ldb_bridge_mode_set()
211 	struct ldb *ldb = ldb_ch->ldb;  in imx8qxp_ldb_bridge_atomic_pre_enable()  local
212 	struct imx8qxp_ldb *imx8qxp_ldb = base_to_imx8qxp_ldb(ldb);  in imx8qxp_ldb_bridge_atomic_pre_enable()
228 	struct ldb *ldb = ldb_ch->ldb;  in imx8qxp_ldb_bridge_atomic_enable()  local
231 	struct imx8qxp_ldb *imx8qxp_ldb = base_to_imx8qxp_ldb(ldb);  in imx8qxp_ldb_bridge_atomic_enable()
238 		ldb->ldb_ctrl &= ~LDB_CH0_MODE_EN_MASK;  in imx8qxp_ldb_bridge_atomic_enable()
239 		ldb->ldb_ctrl |= imx8qxp_ldb_ch->di_id == 0 ?  in imx8qxp_ldb_bridge_atomic_enable()
243 		ldb->ldb_ctrl &= ~LDB_CH1_MODE_EN_MASK;  in imx8qxp_ldb_bridge_atomic_enable()
244 		ldb->ldb_ctrl |= imx8qxp_ldb_ch->di_id == 0 ?  in imx8qxp_ldb_bridge_atomic_enable()
263 	struct ldb *ldb = ldb_ch->ldb;  in imx8qxp_ldb_bridge_atomic_disable()  local
266 	struct imx8qxp_ldb *imx8qxp_ldb = base_to_imx8qxp_ldb(ldb);  in imx8qxp_ldb_bridge_atomic_disable()
475 	/* Locate the companion LDB for dual-link operation, if any. */  in imx8qxp_ldb_parse_dt_companion()
476 	companion = of_parse_phandle(dev->of_node, "fsl,companion-ldb", 0);  in imx8qxp_ldb_parse_dt_companion()
481 		DRM_DEV_ERROR(dev, "companion LDB is not available\n");  in imx8qxp_ldb_parse_dt_companion()
492 		DRM_DEV_ERROR(dev, "companion LDB is incompatible\n");  in imx8qxp_ldb_parse_dt_companion()
519 			      "failed to find companion LDB channel port\n");  in imx8qxp_ldb_parse_dt_companion()
528 	 * even pixels than we need to enable LDB split mode.  in imx8qxp_ldb_parse_dt_companion()
584 	struct ldb *ldb;  in imx8qxp_ldb_probe()  local
612 	ldb = &imx8qxp_ldb->base;  in imx8qxp_ldb_probe()
613 	ldb->dev = dev;  in imx8qxp_ldb_probe()
614 	ldb->ctrl_reg = 0xe0;  in imx8qxp_ldb_probe()
617 		ldb->channel[i] = &imx8qxp_ldb->channel[i].base;  in imx8qxp_ldb_probe()
619 	ret = ldb_init_helper(ldb);  in imx8qxp_ldb_probe()
623 	if (ldb->available_ch_cnt == 0) {  in imx8qxp_ldb_probe()
626 	} else if (ldb->available_ch_cnt > 1) {  in imx8qxp_ldb_probe()
628 			      ldb->available_ch_cnt);  in imx8qxp_ldb_probe()
651 	ret = ldb_find_next_bridge_helper(ldb);  in imx8qxp_ldb_probe()
666 	ldb_add_bridge_helper(ldb, &imx8qxp_ldb_bridge_funcs);  in imx8qxp_ldb_probe()
674 	struct ldb *ldb = &imx8qxp_ldb->base;  in imx8qxp_ldb_remove()  local
676 	ldb_remove_bridge_helper(ldb);  in imx8qxp_ldb_remove()
689 	struct ldb *ldb = &imx8qxp_ldb->base;  in imx8qxp_ldb_runtime_resume()  local
691 	/* disable LDB by resetting the control register to POR default */  in imx8qxp_ldb_runtime_resume()
692 	regmap_write(ldb->regmap, ldb->ctrl_reg, 0);  in imx8qxp_ldb_runtime_resume()
703 	{ .compatible = "fsl,imx8qxp-ldb" },
719 MODULE_DESCRIPTION("i.MX8QXP LVDS Display Bridge(LDB)/Pixel Mapper bridge driver");