Lines Matching +full:e +full:- +full:ddc
1 // SPDX-License-Identifier: GPL-2.0+
3 * i.MX drm driver - Television Encoder (TVEv2)
8 #include <linux/clk-provider.h>
19 #include <video/imx-ipu-v3.h>
25 #include "imx-drm.h"
114 struct i2c_adapter *ddc; member
126 static inline struct imx_tve *enc_to_tve(struct drm_encoder *e) in enc_to_tve() argument
128 return container_of(e, struct imx_tve, encoder); in enc_to_tve()
132 __acquires(&tve->lock) in tve_lock()
136 spin_lock(&tve->lock); in tve_lock()
140 __releases(&tve->lock) in tve_unlock()
144 spin_unlock(&tve->lock); in tve_unlock()
149 if (!tve->enabled) { in tve_enable()
150 tve->enabled = true; in tve_enable()
151 clk_prepare_enable(tve->clk); in tve_enable()
152 regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, in tve_enable()
157 regmap_write(tve->regmap, TVE_STAT_REG, 0xffffffff); in tve_enable()
160 if (tve->mode == TVE_MODE_VGA) in tve_enable()
161 regmap_write(tve->regmap, TVE_INT_CONT_REG, 0); in tve_enable()
163 regmap_write(tve->regmap, TVE_INT_CONT_REG, in tve_enable()
171 if (tve->enabled) { in tve_disable()
172 tve->enabled = false; in tve_disable()
173 regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, TVE_EN, 0); in tve_disable()
174 clk_disable_unprepare(tve->clk); in tve_disable()
180 return -ENOTSUPP; in tve_setup_tvout()
189 /* set gain to (1 + 10/128) to provide 0.7V peak-to-peak amplitude */ in tve_setup_vga()
190 ret = regmap_update_bits(tve->regmap, TVE_TVDAC0_CONT_REG, in tve_setup_vga()
195 ret = regmap_update_bits(tve->regmap, TVE_TVDAC1_CONT_REG, in tve_setup_vga()
200 ret = regmap_update_bits(tve->regmap, TVE_TVDAC2_CONT_REG, in tve_setup_vga()
212 ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, mask, val); in tve_setup_vga()
217 return regmap_update_bits(tve->regmap, TVE_TST_MODE_REG, in tve_setup_vga()
227 if (!tve->ddc) in imx_tve_connector_get_modes()
230 edid = drm_get_edid(connector, tve->ddc); in imx_tve_connector_get_modes()
247 rate = clk_round_rate(tve->clk, 2000UL * mode->clock) / 2000; in imx_tve_connector_mode_valid()
248 if (rate == mode->clock) in imx_tve_connector_mode_valid()
252 rate = clk_round_rate(tve->clk, 1000UL * mode->clock) / 1000; in imx_tve_connector_mode_valid()
253 if (rate == mode->clock) in imx_tve_connector_mode_valid()
256 dev_warn(tve->dev, "ignoring mode %dx%d\n", in imx_tve_connector_mode_valid()
257 mode->hdisplay, mode->vdisplay); in imx_tve_connector_mode_valid()
267 return &tve->encoder; in imx_tve_connector_best_encoder()
282 * we should try 4k * mode->clock first, in imx_tve_encoder_mode_set()
285 rate = 2000UL * mode->clock; in imx_tve_encoder_mode_set()
286 clk_set_rate(tve->clk, rate); in imx_tve_encoder_mode_set()
287 rounded_rate = clk_get_rate(tve->clk); in imx_tve_encoder_mode_set()
290 clk_set_rate(tve->di_clk, rounded_rate / div); in imx_tve_encoder_mode_set()
292 ret = clk_set_parent(tve->di_sel_clk, tve->di_clk); in imx_tve_encoder_mode_set()
294 dev_err(tve->dev, "failed to set di_sel parent to tve_di: %d\n", in imx_tve_encoder_mode_set()
298 regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, in imx_tve_encoder_mode_set()
301 if (tve->mode == TVE_MODE_VGA) in imx_tve_encoder_mode_set()
306 dev_err(tve->dev, "failed to set configuration: %d\n", ret); in imx_tve_encoder_mode_set()
330 imx_crtc_state->bus_format = MEDIA_BUS_FMT_GBR888_1X24; in imx_tve_atomic_check()
331 imx_crtc_state->di_hsync_pin = tve->di_hsync_pin; in imx_tve_atomic_check()
332 imx_crtc_state->di_vsync_pin = tve->di_vsync_pin; in imx_tve_atomic_check()
367 regmap_read(tve->regmap, TVE_STAT_REG, &val); in imx_tve_irq_handler()
370 regmap_write(tve->regmap, TVE_STAT_REG, 0xffffffff); in imx_tve_irq_handler()
382 ret = regmap_read(tve->regmap, TVE_COM_CONF_REG, &val); in clk_tve_di_recalc_rate()
428 ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG, in clk_tve_di_set_rate()
432 dev_err(tve->dev, "failed to set divider: %d\n", ret); in clk_tve_di_set_rate()
455 tve_di_parent[0] = __clk_get_name(tve->clk); in tve_clk_init()
458 tve->clk_hw_di.init = &init; in tve_clk_init()
459 tve->di_clk = clk_register(tve->dev, &tve->clk_hw_di); in tve_clk_init()
460 if (IS_ERR(tve->di_clk)) { in tve_clk_init()
461 dev_err(tve->dev, "failed to register TVE output clock: %ld\n", in tve_clk_init()
462 PTR_ERR(tve->di_clk)); in tve_clk_init()
463 return PTR_ERR(tve->di_clk); in tve_clk_init()
474 encoder_type = tve->mode == TVE_MODE_VGA ? in imx_tve_register()
477 ret = imx_drm_encoder_parse_of(drm, &tve->encoder, tve->dev->of_node); in imx_tve_register()
481 drm_encoder_helper_add(&tve->encoder, &imx_tve_encoder_helper_funcs); in imx_tve_register()
482 drm_encoder_init(drm, &tve->encoder, &imx_tve_encoder_funcs, in imx_tve_register()
485 drm_connector_helper_add(&tve->connector, in imx_tve_register()
487 drm_connector_init_with_ddc(drm, &tve->connector, in imx_tve_register()
490 tve->ddc); in imx_tve_register()
492 drm_connector_attach_encoder(&tve->connector, &tve->encoder); in imx_tve_register()
525 ret = of_property_read_string(np, "fsl,tve-mode", &bm); in of_get_tve_mode()
533 return -EINVAL; in of_get_tve_mode()
540 struct device_node *np = dev->of_node; in imx_tve_bind()
551 return -ENOMEM; in imx_tve_bind()
553 tve->dev = dev; in imx_tve_bind()
554 spin_lock_init(&tve->lock); in imx_tve_bind()
556 ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0); in imx_tve_bind()
558 tve->ddc = of_find_i2c_adapter_by_node(ddc_node); in imx_tve_bind()
562 tve->mode = of_get_tve_mode(np); in imx_tve_bind()
563 if (tve->mode != TVE_MODE_VGA) { in imx_tve_bind()
565 return -EINVAL; in imx_tve_bind()
568 if (tve->mode == TVE_MODE_VGA) { in imx_tve_bind()
569 ret = of_property_read_u32(np, "fsl,hsync-pin", in imx_tve_bind()
570 &tve->di_hsync_pin); in imx_tve_bind()
577 ret = of_property_read_u32(np, "fsl,vsync-pin", in imx_tve_bind()
578 &tve->di_vsync_pin); in imx_tve_bind()
592 tve->regmap = devm_regmap_init_mmio_clk(dev, "tve", base, in imx_tve_bind()
594 if (IS_ERR(tve->regmap)) { in imx_tve_bind()
596 PTR_ERR(tve->regmap)); in imx_tve_bind()
597 return PTR_ERR(tve->regmap); in imx_tve_bind()
608 "imx-tve", tve); in imx_tve_bind()
614 tve->dac_reg = devm_regulator_get(dev, "dac"); in imx_tve_bind()
615 if (!IS_ERR(tve->dac_reg)) { in imx_tve_bind()
616 if (regulator_get_voltage(tve->dac_reg) != IMX_TVE_DAC_VOLTAGE) in imx_tve_bind()
618 ret = regulator_enable(tve->dac_reg); in imx_tve_bind()
623 tve->clk = devm_clk_get(dev, "tve"); in imx_tve_bind()
624 if (IS_ERR(tve->clk)) { in imx_tve_bind()
626 PTR_ERR(tve->clk)); in imx_tve_bind()
627 return PTR_ERR(tve->clk); in imx_tve_bind()
631 tve->di_sel_clk = devm_clk_get(dev, "di_sel"); in imx_tve_bind()
632 if (IS_ERR(tve->di_sel_clk)) { in imx_tve_bind()
634 PTR_ERR(tve->di_sel_clk)); in imx_tve_bind()
635 return PTR_ERR(tve->di_sel_clk); in imx_tve_bind()
642 ret = regmap_read(tve->regmap, TVE_COM_CONF_REG, &val); in imx_tve_bind()
650 return -ENODEV; in imx_tve_bind()
654 ret = regmap_write(tve->regmap, TVE_CD_CONT_REG, 0); in imx_tve_bind()
672 if (!IS_ERR(tve->dac_reg)) in imx_tve_unbind()
673 regulator_disable(tve->dac_reg); in imx_tve_unbind()
683 return component_add(&pdev->dev, &imx_tve_ops); in imx_tve_probe()
688 component_del(&pdev->dev, &imx_tve_ops); in imx_tve_remove()
693 { .compatible = "fsl,imx53-tve", },
703 .name = "imx-tve",
712 MODULE_ALIAS("platform:imx-tve");