Lines Matching +full:ddc +full:- +full:i2c
1 // SPDX-License-Identifier: GPL-2.0
4 * Zheng Yang <zhengyang@rock-chips.com>
37 struct mutex i2c_lock; /* For i2c operation. */
52 struct rk3066_hdmi_i2c *i2c; member
53 struct i2c_adapter *ddc; member
65 return readl_relaxed(hdmi->regs + offset); in hdmi_readb()
70 writel_relaxed(val, hdmi->regs + offset); in hdmi_writeb()
86 ddc_bus_freq = (hdmi->tmdsclk >> 2) / HDMI_SCL_RATE; in rk3066_hdmi_i2c_init()
108 DRM_DEV_DEBUG(hdmi->dev, "mode :%d\n", mode); in rk3066_hdmi_set_power_mode()
109 DRM_DEV_DEBUG(hdmi->dev, "current_mode :%d\n", current_mode); in rk3066_hdmi_set_power_mode()
124 DRM_DEV_DEBUG(hdmi->dev, "%d: next_mode :%d\n", i, next_mode); in rk3066_hdmi_set_power_mode()
149 * the DDC clock. in rk3066_hdmi_set_power_mode()
152 hdmi->tmdsclk = DEFAULT_PLLA_RATE; in rk3066_hdmi_set_power_mode()
192 &hdmi->connector, mode); in rk3066_hdmi_config_avi()
194 if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444) in rk3066_hdmi_config_avi()
196 else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV422) in rk3066_hdmi_config_avi()
201 frame.avi.colorimetry = hdmi->hdmi_data.colorimetry; in rk3066_hdmi_config_avi()
215 value |= mode->flags & DRM_MODE_FLAG_PHSYNC ? in rk3066_hdmi_config_video_timing()
217 value |= mode->flags & DRM_MODE_FLAG_PVSYNC ? in rk3066_hdmi_config_video_timing()
219 value |= mode->flags & DRM_MODE_FLAG_INTERLACE ? in rk3066_hdmi_config_video_timing()
222 if (hdmi->hdmi_data.vic == 2 || hdmi->hdmi_data.vic == 3) in rk3066_hdmi_config_video_timing()
231 value = mode->htotal; in rk3066_hdmi_config_video_timing()
235 value = mode->htotal - mode->hdisplay; in rk3066_hdmi_config_video_timing()
239 value = mode->htotal - mode->hsync_start; in rk3066_hdmi_config_video_timing()
243 value = mode->hsync_end - mode->hsync_start; in rk3066_hdmi_config_video_timing()
247 value = mode->vtotal; in rk3066_hdmi_config_video_timing()
251 value = mode->vtotal - mode->vdisplay; in rk3066_hdmi_config_video_timing()
254 value = mode->vtotal - mode->vsync_start + vsync_offset; in rk3066_hdmi_config_video_timing()
257 value = mode->vsync_end - mode->vsync_start; in rk3066_hdmi_config_video_timing()
280 * The semi-public documentation does not describe the hdmi registers in rk3066_hdmi_config_phy()
284 if (hdmi->tmdsclk > 100000000) { in rk3066_hdmi_config_phy()
294 } else if (hdmi->tmdsclk > 50000000) { in rk3066_hdmi_config_phy()
320 hdmi->hdmi_data.vic = drm_match_cea_mode(mode); in rk3066_hdmi_setup()
321 hdmi->hdmi_data.enc_out_format = HDMI_COLORSPACE_RGB; in rk3066_hdmi_setup()
323 if (hdmi->hdmi_data.vic == 6 || hdmi->hdmi_data.vic == 7 || in rk3066_hdmi_setup()
324 hdmi->hdmi_data.vic == 21 || hdmi->hdmi_data.vic == 22 || in rk3066_hdmi_setup()
325 hdmi->hdmi_data.vic == 2 || hdmi->hdmi_data.vic == 3 || in rk3066_hdmi_setup()
326 hdmi->hdmi_data.vic == 17 || hdmi->hdmi_data.vic == 18) in rk3066_hdmi_setup()
327 hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601; in rk3066_hdmi_setup()
329 hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709; in rk3066_hdmi_setup()
331 hdmi->tmdsclk = mode->clock * 1000; in rk3066_hdmi_setup()
352 if (hdmi->hdmi_data.sink_is_hdmi) { in rk3066_hdmi_setup()
368 * clock rate and reconfigure the DDC clock. in rk3066_hdmi_setup()
386 memcpy(&hdmi->previous_mode, adj_mode, sizeof(hdmi->previous_mode)); in rk3066_hdmi_encoder_mode_set()
394 mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder); in rk3066_hdmi_encoder_enable()
400 regmap_write(hdmi->grf_regmap, GRF_SOC_CON0, val); in rk3066_hdmi_encoder_enable()
402 DRM_DEV_DEBUG(hdmi->dev, "hdmi encoder enable select: vop%s\n", in rk3066_hdmi_encoder_enable()
405 rk3066_hdmi_setup(hdmi, &hdmi->previous_mode); in rk3066_hdmi_encoder_enable()
412 DRM_DEV_DEBUG(hdmi->dev, "hdmi encoder disable\n"); in rk3066_hdmi_encoder_disable()
440 s->output_mode = ROCKCHIP_OUT_MODE_P888; in rk3066_hdmi_encoder_atomic_check()
441 s->output_type = DRM_MODE_CONNECTOR_HDMIA; in rk3066_hdmi_encoder_atomic_check()
470 if (!hdmi->ddc) in rk3066_hdmi_connector_get_modes()
473 edid = drm_get_edid(connector, hdmi->ddc); in rk3066_hdmi_connector_get_modes()
475 hdmi->hdmi_data.sink_is_hdmi = drm_detect_hdmi_monitor(edid); in rk3066_hdmi_connector_get_modes()
501 return &hdmi->encoder; in rk3066_hdmi_connector_best_encoder()
541 struct drm_encoder *encoder = &hdmi->encoder; in rk3066_hdmi_register()
542 struct device *dev = hdmi->dev; in rk3066_hdmi_register()
544 encoder->possible_crtcs = in rk3066_hdmi_register()
545 drm_of_find_possible_crtcs(drm, dev->of_node); in rk3066_hdmi_register()
553 if (encoder->possible_crtcs == 0) in rk3066_hdmi_register()
554 return -EPROBE_DEFER; in rk3066_hdmi_register()
559 hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD; in rk3066_hdmi_register()
561 drm_connector_helper_add(&hdmi->connector, in rk3066_hdmi_register()
563 drm_connector_init_with_ddc(drm, &hdmi->connector, in rk3066_hdmi_register()
566 hdmi->ddc); in rk3066_hdmi_register()
568 drm_connector_attach_encoder(&hdmi->connector, encoder); in rk3066_hdmi_register()
587 hdmi->i2c->stat = interrupt; in rk3066_hdmi_hardirq()
588 complete(&hdmi->i2c->cmpltn); in rk3066_hdmi_hardirq()
601 drm_helper_hpd_irq_event(hdmi->connector.dev); in rk3066_hdmi_irq()
608 int length = msgs->len; in rk3066_hdmi_i2c_read()
609 u8 *buf = msgs->buf; in rk3066_hdmi_i2c_read()
612 ret = wait_for_completion_timeout(&hdmi->i2c->cmpltn, HZ / 10); in rk3066_hdmi_i2c_read()
613 if (!ret || hdmi->i2c->stat & HDMI_INTR_EDID_ERR) in rk3066_hdmi_i2c_read()
614 return -EAGAIN; in rk3066_hdmi_i2c_read()
616 while (length--) in rk3066_hdmi_i2c_read()
625 * The DDC module only supports read EDID message, so in rk3066_hdmi_i2c_write()
626 * we assume that each word write to this i2c adapter in rk3066_hdmi_i2c_write()
629 if (msgs->len != 1 || in rk3066_hdmi_i2c_write()
630 (msgs->addr != DDC_ADDR && msgs->addr != DDC_SEGMENT_ADDR)) in rk3066_hdmi_i2c_write()
631 return -EINVAL; in rk3066_hdmi_i2c_write()
633 reinit_completion(&hdmi->i2c->cmpltn); in rk3066_hdmi_i2c_write()
635 if (msgs->addr == DDC_SEGMENT_ADDR) in rk3066_hdmi_i2c_write()
636 hdmi->i2c->segment_addr = msgs->buf[0]; in rk3066_hdmi_i2c_write()
637 if (msgs->addr == DDC_ADDR) in rk3066_hdmi_i2c_write()
638 hdmi->i2c->ddc_addr = msgs->buf[0]; in rk3066_hdmi_i2c_write()
644 hdmi_writeb(hdmi, HDMI_EDID_WORD_ADDR, hdmi->i2c->ddc_addr); in rk3066_hdmi_i2c_write()
647 hdmi_writeb(hdmi, HDMI_EDID_SEGMENT_POINTER, hdmi->i2c->segment_addr); in rk3066_hdmi_i2c_write()
656 struct rk3066_hdmi_i2c *i2c = hdmi->i2c; in rk3066_hdmi_i2c_xfer() local
659 mutex_lock(&i2c->i2c_lock); in rk3066_hdmi_i2c_xfer()
666 i2c->stat = 0; in rk3066_hdmi_i2c_xfer()
669 DRM_DEV_DEBUG(hdmi->dev, in rk3066_hdmi_i2c_xfer()
688 mutex_unlock(&i2c->i2c_lock); in rk3066_hdmi_i2c_xfer()
706 struct rk3066_hdmi_i2c *i2c; in rk3066_hdmi_i2c_adapter() local
709 i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL); in rk3066_hdmi_i2c_adapter()
710 if (!i2c) in rk3066_hdmi_i2c_adapter()
711 return ERR_PTR(-ENOMEM); in rk3066_hdmi_i2c_adapter()
713 mutex_init(&i2c->i2c_lock); in rk3066_hdmi_i2c_adapter()
714 init_completion(&i2c->cmpltn); in rk3066_hdmi_i2c_adapter()
716 adap = &i2c->adap; in rk3066_hdmi_i2c_adapter()
717 adap->class = I2C_CLASS_DDC; in rk3066_hdmi_i2c_adapter()
718 adap->owner = THIS_MODULE; in rk3066_hdmi_i2c_adapter()
719 adap->dev.parent = hdmi->dev; in rk3066_hdmi_i2c_adapter()
720 adap->dev.of_node = hdmi->dev->of_node; in rk3066_hdmi_i2c_adapter()
721 adap->algo = &rk3066_hdmi_algorithm; in rk3066_hdmi_i2c_adapter()
722 strlcpy(adap->name, "RK3066 HDMI", sizeof(adap->name)); in rk3066_hdmi_i2c_adapter()
727 DRM_DEV_ERROR(hdmi->dev, "cannot add %s I2C adapter\n", in rk3066_hdmi_i2c_adapter()
728 adap->name); in rk3066_hdmi_i2c_adapter()
729 devm_kfree(hdmi->dev, i2c); in rk3066_hdmi_i2c_adapter()
733 hdmi->i2c = i2c; in rk3066_hdmi_i2c_adapter()
735 DRM_DEV_DEBUG(hdmi->dev, "registered %s I2C bus driver\n", adap->name); in rk3066_hdmi_i2c_adapter()
751 return -ENOMEM; in rk3066_hdmi_bind()
753 hdmi->dev = dev; in rk3066_hdmi_bind()
754 hdmi->drm_dev = drm; in rk3066_hdmi_bind()
755 hdmi->regs = devm_platform_ioremap_resource(pdev, 0); in rk3066_hdmi_bind()
756 if (IS_ERR(hdmi->regs)) in rk3066_hdmi_bind()
757 return PTR_ERR(hdmi->regs); in rk3066_hdmi_bind()
763 hdmi->hclk = devm_clk_get(dev, "hclk"); in rk3066_hdmi_bind()
764 if (IS_ERR(hdmi->hclk)) { in rk3066_hdmi_bind()
766 return PTR_ERR(hdmi->hclk); in rk3066_hdmi_bind()
769 ret = clk_prepare_enable(hdmi->hclk); in rk3066_hdmi_bind()
775 hdmi->grf_regmap = syscon_regmap_lookup_by_phandle(dev->of_node, in rk3066_hdmi_bind()
777 if (IS_ERR(hdmi->grf_regmap)) { in rk3066_hdmi_bind()
779 ret = PTR_ERR(hdmi->grf_regmap); in rk3066_hdmi_bind()
786 hdmi->ddc = rk3066_hdmi_i2c_adapter(hdmi); in rk3066_hdmi_bind()
787 if (IS_ERR(hdmi->ddc)) { in rk3066_hdmi_bind()
788 ret = PTR_ERR(hdmi->ddc); in rk3066_hdmi_bind()
789 hdmi->ddc = NULL; in rk3066_hdmi_bind()
818 hdmi->connector.funcs->destroy(&hdmi->connector); in rk3066_hdmi_bind()
819 hdmi->encoder.funcs->destroy(&hdmi->encoder); in rk3066_hdmi_bind()
821 i2c_put_adapter(hdmi->ddc); in rk3066_hdmi_bind()
823 clk_disable_unprepare(hdmi->hclk); in rk3066_hdmi_bind()
833 hdmi->connector.funcs->destroy(&hdmi->connector); in rk3066_hdmi_unbind()
834 hdmi->encoder.funcs->destroy(&hdmi->encoder); in rk3066_hdmi_unbind()
836 i2c_put_adapter(hdmi->ddc); in rk3066_hdmi_unbind()
837 clk_disable_unprepare(hdmi->hclk); in rk3066_hdmi_unbind()
847 return component_add(&pdev->dev, &rk3066_hdmi_ops); in rk3066_hdmi_probe()
852 component_del(&pdev->dev, &rk3066_hdmi_ops); in rk3066_hdmi_remove()
858 { .compatible = "rockchip,rk3066-hdmi" },
867 .name = "rockchip-rk3066-hdmi",