Lines Matching refs:lvds
59 void (*pll_setup)(struct rcar_lvds *lvds, unsigned int freq);
86 static u32 rcar_lvds_read(struct rcar_lvds *lvds, u32 reg) in rcar_lvds_read() argument
88 return ioread32(lvds->mmio + reg); in rcar_lvds_read()
91 static void rcar_lvds_write(struct rcar_lvds *lvds, u32 reg, u32 data) in rcar_lvds_write() argument
93 iowrite32(data, lvds->mmio + reg); in rcar_lvds_write()
100 static void rcar_lvds_pll_setup_gen2(struct rcar_lvds *lvds, unsigned int freq) in rcar_lvds_pll_setup_gen2() argument
113 rcar_lvds_write(lvds, LVDPLLCR, val); in rcar_lvds_pll_setup_gen2()
116 static void rcar_lvds_pll_setup_gen3(struct rcar_lvds *lvds, unsigned int freq) in rcar_lvds_pll_setup_gen3() argument
129 rcar_lvds_write(lvds, LVDPLLCR, val); in rcar_lvds_pll_setup_gen3()
141 static void rcar_lvds_d3_e3_pll_calc(struct rcar_lvds *lvds, struct clk *clk, in rcar_lvds_d3_e3_pll_calc() argument
265 dev_dbg(lvds->dev, in rcar_lvds_d3_e3_pll_calc()
272 static void __rcar_lvds_pll_setup_d3_e3(struct rcar_lvds *lvds, in __rcar_lvds_pll_setup_d3_e3() argument
278 rcar_lvds_d3_e3_pll_calc(lvds, lvds->clocks.dotclkin[0], freq, &pll, in __rcar_lvds_pll_setup_d3_e3()
280 rcar_lvds_d3_e3_pll_calc(lvds, lvds->clocks.dotclkin[1], freq, &pll, in __rcar_lvds_pll_setup_d3_e3()
282 rcar_lvds_d3_e3_pll_calc(lvds, lvds->clocks.extal, freq, &pll, in __rcar_lvds_pll_setup_d3_e3()
295 rcar_lvds_write(lvds, LVDPLLCR, lvdpllcr); in __rcar_lvds_pll_setup_d3_e3()
302 rcar_lvds_write(lvds, LVDDIV, LVDDIV_DIVSEL | in __rcar_lvds_pll_setup_d3_e3()
305 rcar_lvds_write(lvds, LVDDIV, 0); in __rcar_lvds_pll_setup_d3_e3()
308 static void rcar_lvds_pll_setup_d3_e3(struct rcar_lvds *lvds, unsigned int freq) in rcar_lvds_pll_setup_d3_e3() argument
310 __rcar_lvds_pll_setup_d3_e3(lvds, freq, false); in rcar_lvds_pll_setup_d3_e3()
319 struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); in rcar_lvds_pclk_enable() local
322 if (WARN_ON(!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL))) in rcar_lvds_pclk_enable()
325 dev_dbg(lvds->dev, "enabling LVDS PLL, freq=%luHz\n", freq); in rcar_lvds_pclk_enable()
327 ret = pm_runtime_resume_and_get(lvds->dev); in rcar_lvds_pclk_enable()
331 __rcar_lvds_pll_setup_d3_e3(lvds, freq, true); in rcar_lvds_pclk_enable()
339 struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); in rcar_lvds_pclk_disable() local
341 if (WARN_ON(!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL))) in rcar_lvds_pclk_disable()
344 dev_dbg(lvds->dev, "disabling LVDS PLL\n"); in rcar_lvds_pclk_disable()
346 rcar_lvds_write(lvds, LVDPLLCR, 0); in rcar_lvds_pclk_disable()
348 pm_runtime_put_sync(lvds->dev); in rcar_lvds_pclk_disable()
356 static enum rcar_lvds_mode rcar_lvds_get_lvds_mode(struct rcar_lvds *lvds, in rcar_lvds_get_lvds_mode() argument
366 if (!lvds->panel) in rcar_lvds_get_lvds_mode()
371 dev_warn(lvds->dev, in rcar_lvds_get_lvds_mode()
385 dev_warn(lvds->dev, in rcar_lvds_get_lvds_mode()
402 struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); in __rcar_lvds_atomic_enable() local
407 ret = pm_runtime_resume_and_get(lvds->dev); in __rcar_lvds_atomic_enable()
412 if (lvds->link_type != RCAR_LVDS_SINGLE_LINK && lvds->companion) in __rcar_lvds_atomic_enable()
413 __rcar_lvds_atomic_enable(lvds->companion, state, crtc, in __rcar_lvds_atomic_enable()
424 rcar_lvds_write(lvds, LVDCTRCR, LVDCTRCR_CTR3SEL_ZERO | in __rcar_lvds_atomic_enable()
428 if (lvds->info->quirks & RCAR_LVDS_QUIRK_LANES) in __rcar_lvds_atomic_enable()
435 rcar_lvds_write(lvds, LVDCHCR, lvdhcr); in __rcar_lvds_atomic_enable()
437 if (lvds->info->quirks & RCAR_LVDS_QUIRK_DUAL_LINK) { in __rcar_lvds_atomic_enable()
440 if (lvds->link_type != RCAR_LVDS_SINGLE_LINK) { in __rcar_lvds_atomic_enable()
448 bool swap_pixels = lvds->link_type == in __rcar_lvds_atomic_enable()
459 | (lvds->companion && swap_pixels ? in __rcar_lvds_atomic_enable()
462 rcar_lvds_write(lvds, LVDSTRIPE, lvdstripe); in __rcar_lvds_atomic_enable()
469 if (lvds->link_type == RCAR_LVDS_SINGLE_LINK || lvds->companion) { in __rcar_lvds_atomic_enable()
475 lvds->info->pll_setup(lvds, mode->clock * 1000); in __rcar_lvds_atomic_enable()
479 lvdcr0 = rcar_lvds_get_lvds_mode(lvds, connector) << LVDCR0_LVMD_SHIFT; in __rcar_lvds_atomic_enable()
481 if (lvds->bridge.encoder) { in __rcar_lvds_atomic_enable()
486 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in __rcar_lvds_atomic_enable()
489 rcar_lvds_write(lvds, LVDCR1, in __rcar_lvds_atomic_enable()
493 if (lvds->info->gen < 3) { in __rcar_lvds_atomic_enable()
496 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in __rcar_lvds_atomic_enable()
499 if (!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL)) { in __rcar_lvds_atomic_enable()
505 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in __rcar_lvds_atomic_enable()
508 if (lvds->info->quirks & RCAR_LVDS_QUIRK_PWD) { in __rcar_lvds_atomic_enable()
511 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in __rcar_lvds_atomic_enable()
514 if (lvds->info->quirks & RCAR_LVDS_QUIRK_GEN3_LVEN) { in __rcar_lvds_atomic_enable()
520 if (!(lvds->info->quirks & RCAR_LVDS_QUIRK_PWD)) in __rcar_lvds_atomic_enable()
521 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in __rcar_lvds_atomic_enable()
524 if (!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL)) { in __rcar_lvds_atomic_enable()
531 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in __rcar_lvds_atomic_enable()
551 struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); in rcar_lvds_atomic_disable() local
559 lvdcr0 = rcar_lvds_read(lvds, LVDCR0); in rcar_lvds_atomic_disable()
562 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in rcar_lvds_atomic_disable()
564 if (lvds->info->quirks & RCAR_LVDS_QUIRK_GEN3_LVEN) { in rcar_lvds_atomic_disable()
566 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in rcar_lvds_atomic_disable()
569 if (lvds->info->quirks & RCAR_LVDS_QUIRK_PWD) { in rcar_lvds_atomic_disable()
571 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in rcar_lvds_atomic_disable()
574 if (!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL)) { in rcar_lvds_atomic_disable()
576 rcar_lvds_write(lvds, LVDCR0, lvdcr0); in rcar_lvds_atomic_disable()
579 rcar_lvds_write(lvds, LVDCR0, 0); in rcar_lvds_atomic_disable()
580 rcar_lvds_write(lvds, LVDCR1, 0); in rcar_lvds_atomic_disable()
581 rcar_lvds_write(lvds, LVDPLLCR, 0); in rcar_lvds_atomic_disable()
584 if (lvds->link_type != RCAR_LVDS_SINGLE_LINK && lvds->companion) in rcar_lvds_atomic_disable()
585 lvds->companion->funcs->atomic_disable(lvds->companion, in rcar_lvds_atomic_disable()
588 pm_runtime_put_sync(lvds->dev); in rcar_lvds_atomic_disable()
595 struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); in rcar_lvds_mode_fixup() local
603 min_freq = lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL ? 5000 : 31000; in rcar_lvds_mode_fixup()
612 struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); in rcar_lvds_attach() local
614 if (!lvds->next_bridge) in rcar_lvds_attach()
617 return drm_bridge_attach(bridge->encoder, lvds->next_bridge, bridge, in rcar_lvds_attach()
633 struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); in rcar_lvds_dual_link() local
635 return lvds->link_type != RCAR_LVDS_SINGLE_LINK; in rcar_lvds_dual_link()
641 struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); in rcar_lvds_is_connected() local
643 return lvds->next_bridge != NULL; in rcar_lvds_is_connected()
651 static int rcar_lvds_parse_dt_companion(struct rcar_lvds *lvds) in rcar_lvds_parse_dt_companion() argument
657 struct device *dev = lvds->dev; in rcar_lvds_parse_dt_companion()
691 lvds->link_type = RCAR_LVDS_DUAL_LINK_ODD_EVEN_PIXELS; in rcar_lvds_parse_dt_companion()
694 lvds->link_type = RCAR_LVDS_DUAL_LINK_EVEN_ODD_PIXELS; in rcar_lvds_parse_dt_companion()
703 if (lvds->next_bridge->timings && in rcar_lvds_parse_dt_companion()
704 lvds->next_bridge->timings->dual_link) in rcar_lvds_parse_dt_companion()
705 lvds->link_type = RCAR_LVDS_DUAL_LINK_EVEN_ODD_PIXELS; in rcar_lvds_parse_dt_companion()
707 lvds->link_type = RCAR_LVDS_SINGLE_LINK; in rcar_lvds_parse_dt_companion()
710 if (lvds->link_type == RCAR_LVDS_SINGLE_LINK) { in rcar_lvds_parse_dt_companion()
715 lvds->companion = of_drm_find_bridge(companion); in rcar_lvds_parse_dt_companion()
716 if (!lvds->companion) { in rcar_lvds_parse_dt_companion()
725 if (lvds->link_type == RCAR_LVDS_DUAL_LINK_ODD_EVEN_PIXELS) in rcar_lvds_parse_dt_companion()
737 companion_lvds = bridge_to_rcar_lvds(lvds->companion); in rcar_lvds_parse_dt_companion()
738 companion_lvds->link_type = lvds->link_type; in rcar_lvds_parse_dt_companion()
746 static int rcar_lvds_parse_dt(struct rcar_lvds *lvds) in rcar_lvds_parse_dt() argument
750 ret = drm_of_find_panel_or_bridge(lvds->dev->of_node, 1, 0, in rcar_lvds_parse_dt()
751 &lvds->panel, &lvds->next_bridge); in rcar_lvds_parse_dt()
755 if (lvds->panel) { in rcar_lvds_parse_dt()
756 lvds->next_bridge = devm_drm_panel_bridge_add(lvds->dev, in rcar_lvds_parse_dt()
757 lvds->panel); in rcar_lvds_parse_dt()
758 if (IS_ERR_OR_NULL(lvds->next_bridge)) { in rcar_lvds_parse_dt()
764 if (lvds->info->quirks & RCAR_LVDS_QUIRK_DUAL_LINK) in rcar_lvds_parse_dt()
765 ret = rcar_lvds_parse_dt_companion(lvds); in rcar_lvds_parse_dt()
774 if (lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL) in rcar_lvds_parse_dt()
780 static struct clk *rcar_lvds_get_clock(struct rcar_lvds *lvds, const char *name, in rcar_lvds_get_clock() argument
785 clk = devm_clk_get(lvds->dev, name); in rcar_lvds_get_clock()
792 dev_err_probe(lvds->dev, PTR_ERR(clk), "failed to get %s clock\n", in rcar_lvds_get_clock()
798 static int rcar_lvds_get_clocks(struct rcar_lvds *lvds) in rcar_lvds_get_clocks() argument
800 lvds->clocks.mod = rcar_lvds_get_clock(lvds, NULL, false); in rcar_lvds_get_clocks()
801 if (IS_ERR(lvds->clocks.mod)) in rcar_lvds_get_clocks()
802 return PTR_ERR(lvds->clocks.mod); in rcar_lvds_get_clocks()
807 if (!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL)) in rcar_lvds_get_clocks()
810 lvds->clocks.extal = rcar_lvds_get_clock(lvds, "extal", true); in rcar_lvds_get_clocks()
811 if (IS_ERR(lvds->clocks.extal)) in rcar_lvds_get_clocks()
812 return PTR_ERR(lvds->clocks.extal); in rcar_lvds_get_clocks()
814 lvds->clocks.dotclkin[0] = rcar_lvds_get_clock(lvds, "dclkin.0", true); in rcar_lvds_get_clocks()
815 if (IS_ERR(lvds->clocks.dotclkin[0])) in rcar_lvds_get_clocks()
816 return PTR_ERR(lvds->clocks.dotclkin[0]); in rcar_lvds_get_clocks()
818 lvds->clocks.dotclkin[1] = rcar_lvds_get_clock(lvds, "dclkin.1", true); in rcar_lvds_get_clocks()
819 if (IS_ERR(lvds->clocks.dotclkin[1])) in rcar_lvds_get_clocks()
820 return PTR_ERR(lvds->clocks.dotclkin[1]); in rcar_lvds_get_clocks()
823 if (!lvds->clocks.extal && !lvds->clocks.dotclkin[0] && in rcar_lvds_get_clocks()
824 !lvds->clocks.dotclkin[1]) { in rcar_lvds_get_clocks()
825 dev_err(lvds->dev, in rcar_lvds_get_clocks()
850 struct rcar_lvds *lvds; in rcar_lvds_probe() local
853 lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL); in rcar_lvds_probe()
854 if (lvds == NULL) in rcar_lvds_probe()
857 platform_set_drvdata(pdev, lvds); in rcar_lvds_probe()
859 lvds->dev = &pdev->dev; in rcar_lvds_probe()
860 lvds->info = of_device_get_match_data(&pdev->dev); in rcar_lvds_probe()
864 lvds->info = attr->data; in rcar_lvds_probe()
866 ret = rcar_lvds_parse_dt(lvds); in rcar_lvds_probe()
870 lvds->bridge.funcs = &rcar_lvds_bridge_ops; in rcar_lvds_probe()
871 lvds->bridge.of_node = pdev->dev.of_node; in rcar_lvds_probe()
873 lvds->mmio = devm_platform_ioremap_resource(pdev, 0); in rcar_lvds_probe()
874 if (IS_ERR(lvds->mmio)) in rcar_lvds_probe()
875 return PTR_ERR(lvds->mmio); in rcar_lvds_probe()
877 ret = rcar_lvds_get_clocks(lvds); in rcar_lvds_probe()
881 lvds->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); in rcar_lvds_probe()
882 if (IS_ERR(lvds->rstc)) in rcar_lvds_probe()
883 return dev_err_probe(&pdev->dev, PTR_ERR(lvds->rstc), in rcar_lvds_probe()
888 drm_bridge_add(&lvds->bridge); in rcar_lvds_probe()
895 struct rcar_lvds *lvds = platform_get_drvdata(pdev); in rcar_lvds_remove() local
897 drm_bridge_remove(&lvds->bridge); in rcar_lvds_remove()
961 struct rcar_lvds *lvds = dev_get_drvdata(dev); in rcar_lvds_runtime_suspend() local
963 clk_disable_unprepare(lvds->clocks.mod); in rcar_lvds_runtime_suspend()
965 reset_control_assert(lvds->rstc); in rcar_lvds_runtime_suspend()
972 struct rcar_lvds *lvds = dev_get_drvdata(dev); in rcar_lvds_runtime_resume() local
975 ret = reset_control_deassert(lvds->rstc); in rcar_lvds_runtime_resume()
979 ret = clk_prepare_enable(lvds->clocks.mod); in rcar_lvds_runtime_resume()
986 reset_control_assert(lvds->rstc); in rcar_lvds_runtime_resume()