diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm/displays/connector-hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/displays/connector-hdmi.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c deleted file mode 100644 index f5d69d810bb8..000000000000 --- a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c +++ /dev/null @@ -1,183 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * HDMI Connector driver - * - * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/ - * Author: Tomi Valkeinen <tomi.valkeinen@ti.com> - */ - -#include <linux/gpio/consumer.h> -#include <linux/module.h> -#include <linux/mutex.h> -#include <linux/platform_device.h> -#include <linux/slab.h> - -#include "../dss/omapdss.h" - -struct panel_drv_data { - struct omap_dss_device dssdev; - void (*hpd_cb)(void *cb_data, enum drm_connector_status status); - void *hpd_cb_data; - struct mutex hpd_lock; - - struct device *dev; - - 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 *src, - struct omap_dss_device *dst) -{ - return 0; -} - -static void hdmic_disconnect(struct omap_dss_device *src, - struct omap_dss_device *dst) -{ -} - -static bool hdmic_detect(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - - return gpiod_get_value_cansleep(ddata->hpd_gpio); -} - -static void hdmic_register_hpd_cb(struct omap_dss_device *dssdev, - void (*cb)(void *cb_data, - enum drm_connector_status status), - void *cb_data) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - - mutex_lock(&ddata->hpd_lock); - ddata->hpd_cb = cb; - ddata->hpd_cb_data = cb_data; - mutex_unlock(&ddata->hpd_lock); -} - -static void hdmic_unregister_hpd_cb(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - - mutex_lock(&ddata->hpd_lock); - ddata->hpd_cb = NULL; - ddata->hpd_cb_data = NULL; - mutex_unlock(&ddata->hpd_lock); -} - -static const struct omap_dss_device_ops hdmic_ops = { - .connect = hdmic_connect, - .disconnect = hdmic_disconnect, - - .detect = hdmic_detect, - .register_hpd_cb = hdmic_register_hpd_cb, - .unregister_hpd_cb = hdmic_unregister_hpd_cb, -}; - -static irqreturn_t hdmic_hpd_isr(int irq, void *data) -{ - struct panel_drv_data *ddata = data; - - mutex_lock(&ddata->hpd_lock); - if (ddata->hpd_cb) { - enum drm_connector_status status; - - if (hdmic_detect(&ddata->dssdev)) - status = connector_status_connected; - else - status = connector_status_disconnected; - - ddata->hpd_cb(ddata->hpd_cb_data, status); - } - mutex_unlock(&ddata->hpd_lock); - - return IRQ_HANDLED; -} - -static int hdmic_probe(struct platform_device *pdev) -{ - struct panel_drv_data *ddata; - struct omap_dss_device *dssdev; - struct gpio_desc *gpio; - int r; - - ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); - if (!ddata) - return -ENOMEM; - - platform_set_drvdata(pdev, ddata); - ddata->dev = &pdev->dev; - - mutex_init(&ddata->hpd_lock); - - /* HPD GPIO */ - gpio = devm_gpiod_get_optional(&pdev->dev, "hpd", GPIOD_IN); - if (IS_ERR(gpio)) { - dev_err(&pdev->dev, "failed to parse HPD gpio\n"); - return PTR_ERR(gpio); - } - - ddata->hpd_gpio = gpio; - - if (ddata->hpd_gpio) { - r = devm_request_threaded_irq(&pdev->dev, - gpiod_to_irq(ddata->hpd_gpio), - NULL, hdmic_hpd_isr, - IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | - IRQF_ONESHOT, - "hdmic hpd", ddata); - if (r) - return r; - } - - dssdev = &ddata->dssdev; - dssdev->ops = &hdmic_ops; - dssdev->dev = &pdev->dev; - dssdev->type = OMAP_DISPLAY_TYPE_HDMI; - dssdev->display = true; - dssdev->owner = THIS_MODULE; - dssdev->of_ports = BIT(0); - dssdev->ops_flags = ddata->hpd_gpio - ? OMAP_DSS_DEVICE_OP_DETECT | OMAP_DSS_DEVICE_OP_HPD - : 0; - - omapdss_display_init(dssdev); - omapdss_device_register(dssdev); - - return 0; -} - -static int __exit hdmic_remove(struct platform_device *pdev) -{ - struct panel_drv_data *ddata = platform_get_drvdata(pdev); - - omapdss_device_unregister(&ddata->dssdev); - - return 0; -} - -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 = __exit_p(hdmic_remove), - .driver = { - .name = "connector-hdmi", - .of_match_table = hdmic_of_match, - .suppress_bind_attrs = true, - }, -}; - -module_platform_driver(hdmi_connector_driver); - -MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>"); -MODULE_DESCRIPTION("HDMI Connector driver"); -MODULE_LICENSE("GPL"); |