Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Tomi Valkeinen | 1179 | 95.16% | 1 | 14.29% |
Dmitry Torokhov | 47 | 3.79% | 1 | 14.29% |
Peter Ujfalusi | 8 | 0.65% | 2 | 28.57% |
Thomas Gleixner | 2 | 0.16% | 1 | 14.29% |
Uwe Kleine-König | 2 | 0.16% | 1 | 14.29% |
Qinglang Miao | 1 | 0.08% | 1 | 14.29% |
Total | 1239 | 7 |
// SPDX-License-Identifier: GPL-2.0-only /* * HDMI Connector driver * * Copyright (C) 2013 Texas Instruments * Author: Tomi Valkeinen <tomi.valkeinen@ti.com> */ #include <linux/err.h> #include <linux/gpio/consumer.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/of.h> #include <drm/drm_edid.h> #include <video/omapfb_dss.h> static const struct omap_video_timings hdmic_default_timings = { .x_res = 640, .y_res = 480, .pixelclock = 25175000, .hsw = 96, .hfp = 16, .hbp = 48, .vsw = 2, .vfp = 11, .vbp = 31, .vsync_level = OMAPDSS_SIG_ACTIVE_LOW, .hsync_level = OMAPDSS_SIG_ACTIVE_LOW, .interlace = false, }; struct panel_drv_data { struct omap_dss_device dssdev; struct omap_dss_device *in; struct device *dev; struct omap_video_timings timings; struct gpio_desc *hpd_gpio; }; #define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev) static int hdmic_connect(struct omap_dss_device *dssdev) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; dev_dbg(ddata->dev, "connect\n"); if (omapdss_device_is_connected(dssdev)) return 0; return in->ops.hdmi->connect(in, dssdev); } static void hdmic_disconnect(struct omap_dss_device *dssdev) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; dev_dbg(ddata->dev, "disconnect\n"); if (!omapdss_device_is_connected(dssdev)) return; in->ops.hdmi->disconnect(in, dssdev); } static int hdmic_enable(struct omap_dss_device *dssdev) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; int r; dev_dbg(ddata->dev, "enable\n"); if (!omapdss_device_is_connected(dssdev)) return -ENODEV; if (omapdss_device_is_enabled(dssdev)) return 0; in->ops.hdmi->set_timings(in, &ddata->timings); r = in->ops.hdmi->enable(in); if (r) return r; dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; return r; } static void hdmic_disable(struct omap_dss_device *dssdev) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; dev_dbg(ddata->dev, "disable\n"); if (!omapdss_device_is_enabled(dssdev)) return; in->ops.hdmi->disable(in); dssdev->state = OMAP_DSS_DISPLAY_DISABLED; } static void hdmic_set_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; ddata->timings = *timings; dssdev->panel.timings = *timings; in->ops.hdmi->set_timings(in, timings); } static void hdmic_get_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { struct panel_drv_data *ddata = to_panel_data(dssdev); *timings = ddata->timings; } static int hdmic_check_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; return in->ops.hdmi->check_timings(in, timings); } static int hdmic_read_edid(struct omap_dss_device *dssdev, u8 *edid, int len) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; return in->ops.hdmi->read_edid(in, edid, len); } static bool hdmic_detect(struct omap_dss_device *dssdev) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; if (ddata->hpd_gpio) return gpiod_get_value_cansleep(ddata->hpd_gpio); else return in->ops.hdmi->detect(in); } static int hdmic_set_hdmi_mode(struct omap_dss_device *dssdev, bool hdmi_mode) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; return in->ops.hdmi->set_hdmi_mode(in, hdmi_mode); } static int hdmic_set_infoframe(struct omap_dss_device *dssdev, const struct hdmi_avi_infoframe *avi) { struct panel_drv_data *ddata = to_panel_data(dssdev); struct omap_dss_device *in = ddata->in; return in->ops.hdmi->set_infoframe(in, avi); } static struct omap_dss_driver hdmic_driver = { .connect = hdmic_connect, .disconnect = hdmic_disconnect, .enable = hdmic_enable, .disable = hdmic_disable, .set_timings = hdmic_set_timings, .get_timings = hdmic_get_timings, .check_timings = hdmic_check_timings, .get_resolution = omapdss_default_get_resolution, .read_edid = hdmic_read_edid, .detect = hdmic_detect, .set_hdmi_mode = hdmic_set_hdmi_mode, .set_hdmi_infoframe = hdmic_set_infoframe, }; static int hdmic_probe(struct platform_device *pdev) { struct panel_drv_data *ddata; struct omap_dss_device *dssdev; int r; if (!pdev->dev.of_node) return -ENODEV; ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); if (!ddata) return -ENOMEM; platform_set_drvdata(pdev, ddata); ddata->dev = &pdev->dev; ddata->hpd_gpio = devm_gpiod_get_optional(&pdev->dev, "hpd", GPIOD_IN); r = PTR_ERR_OR_ZERO(ddata->hpd_gpio); if (r) return r; gpiod_set_consumer_name(ddata->hpd_gpio, "hdmi_hpd"); ddata->in = omapdss_of_find_source_for_first_ep(pdev->dev.of_node); r = PTR_ERR_OR_ZERO(ddata->in); if (r) { dev_err(&pdev->dev, "failed to find video source\n"); return r; } ddata->timings = hdmic_default_timings; dssdev = &ddata->dssdev; dssdev->driver = &hdmic_driver; dssdev->dev = &pdev->dev; dssdev->type = OMAP_DISPLAY_TYPE_HDMI; dssdev->owner = THIS_MODULE; dssdev->panel.timings = hdmic_default_timings; r = omapdss_register_display(dssdev); if (r) { dev_err(&pdev->dev, "Failed to register panel\n"); goto err_reg; } return 0; err_reg: omap_dss_put_device(ddata->in); return r; } static void hdmic_remove(struct platform_device *pdev) { struct panel_drv_data *ddata = platform_get_drvdata(pdev); struct omap_dss_device *dssdev = &ddata->dssdev; struct omap_dss_device *in = ddata->in; omapdss_unregister_display(&ddata->dssdev); hdmic_disable(dssdev); hdmic_disconnect(dssdev); omap_dss_put_device(in); } static const struct of_device_id hdmic_of_match[] = { { .compatible = "omapdss,hdmi-connector", }, {}, }; MODULE_DEVICE_TABLE(of, hdmic_of_match); static struct platform_driver hdmi_connector_driver = { .probe = hdmic_probe, .remove_new = hdmic_remove, .driver = { .name = "connector-hdmi", .of_match_table = hdmic_of_match, }, }; module_platform_driver(hdmi_connector_driver); MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>"); MODULE_DESCRIPTION("HDMI Connector driver"); MODULE_LICENSE("GPL");
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1