diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/output.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/output.c | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c deleted file mode 100644 index 8140fc6c34d..00000000000 --- a/drivers/gpu/drm/tegra/output.c +++ /dev/null @@ -1,272 +0,0 @@ -/* - * Copyright (C) 2012 Avionic Design GmbH - * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/of_gpio.h> -#include <linux/of_i2c.h> - -#include "drm.h" - -static int tegra_connector_get_modes(struct drm_connector *connector) -{ - struct tegra_output *output = connector_to_output(connector); - struct edid *edid = NULL; - int err = 0; - - if (output->edid) - edid = kmemdup(output->edid, sizeof(*edid), GFP_KERNEL); - else if (output->ddc) - edid = drm_get_edid(connector, output->ddc); - - drm_mode_connector_update_edid_property(connector, edid); - - if (edid) { - err = drm_add_edid_modes(connector, edid); - kfree(edid); - } - - return err; -} - -static int tegra_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct tegra_output *output = connector_to_output(connector); - enum drm_mode_status status = MODE_OK; - int err; - - err = tegra_output_check_mode(output, mode, &status); - if (err < 0) - return MODE_ERROR; - - return status; -} - -static struct drm_encoder * -tegra_connector_best_encoder(struct drm_connector *connector) -{ - struct tegra_output *output = connector_to_output(connector); - - return &output->encoder; -} - -static const struct drm_connector_helper_funcs connector_helper_funcs = { - .get_modes = tegra_connector_get_modes, - .mode_valid = tegra_connector_mode_valid, - .best_encoder = tegra_connector_best_encoder, -}; - -static enum drm_connector_status -tegra_connector_detect(struct drm_connector *connector, bool force) -{ - struct tegra_output *output = connector_to_output(connector); - enum drm_connector_status status = connector_status_unknown; - - if (gpio_is_valid(output->hpd_gpio)) { - if (gpio_get_value(output->hpd_gpio) == 0) - status = connector_status_disconnected; - else - status = connector_status_connected; - } else { - if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) - status = connector_status_connected; - } - - return status; -} - -static void tegra_connector_destroy(struct drm_connector *connector) -{ - drm_sysfs_connector_remove(connector); - drm_connector_cleanup(connector); -} - -static const struct drm_connector_funcs connector_funcs = { - .dpms = drm_helper_connector_dpms, - .detect = tegra_connector_detect, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = tegra_connector_destroy, -}; - -static void tegra_encoder_destroy(struct drm_encoder *encoder) -{ - drm_encoder_cleanup(encoder); -} - -static const struct drm_encoder_funcs encoder_funcs = { - .destroy = tegra_encoder_destroy, -}; - -static void tegra_encoder_dpms(struct drm_encoder *encoder, int mode) -{ -} - -static bool tegra_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted) -{ - return true; -} - -static void tegra_encoder_prepare(struct drm_encoder *encoder) -{ -} - -static void tegra_encoder_commit(struct drm_encoder *encoder) -{ -} - -static void tegra_encoder_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted) -{ - struct tegra_output *output = encoder_to_output(encoder); - int err; - - err = tegra_output_enable(output); - if (err < 0) - dev_err(encoder->dev->dev, "tegra_output_enable(): %d\n", err); -} - -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { - .dpms = tegra_encoder_dpms, - .mode_fixup = tegra_encoder_mode_fixup, - .prepare = tegra_encoder_prepare, - .commit = tegra_encoder_commit, - .mode_set = tegra_encoder_mode_set, -}; - -static irqreturn_t hpd_irq(int irq, void *data) -{ - struct tegra_output *output = data; - - drm_helper_hpd_irq_event(output->connector.dev); - - return IRQ_HANDLED; -} - -int tegra_output_parse_dt(struct tegra_output *output) -{ - enum of_gpio_flags flags; - struct device_node *ddc; - size_t size; - int err; - - if (!output->of_node) - output->of_node = output->dev->of_node; - - output->edid = of_get_property(output->of_node, "nvidia,edid", &size); - - ddc = of_parse_phandle(output->of_node, "nvidia,ddc-i2c-bus", 0); - if (ddc) { - output->ddc = of_find_i2c_adapter_by_node(ddc); - if (!output->ddc) { - err = -EPROBE_DEFER; - of_node_put(ddc); - return err; - } - - of_node_put(ddc); - } - - if (!output->edid && !output->ddc) - return -ENODEV; - - output->hpd_gpio = of_get_named_gpio_flags(output->of_node, - "nvidia,hpd-gpio", 0, - &flags); - - return 0; -} - -int tegra_output_init(struct drm_device *drm, struct tegra_output *output) -{ - int connector, encoder, err; - - if (gpio_is_valid(output->hpd_gpio)) { - unsigned long flags; - - err = gpio_request_one(output->hpd_gpio, GPIOF_DIR_IN, - "HDMI hotplug detect"); - if (err < 0) { - dev_err(output->dev, "gpio_request_one(): %d\n", err); - return err; - } - - err = gpio_to_irq(output->hpd_gpio); - if (err < 0) { - dev_err(output->dev, "gpio_to_irq(): %d\n", err); - goto free_hpd; - } - - output->hpd_irq = err; - - flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | - IRQF_ONESHOT; - - err = request_threaded_irq(output->hpd_irq, NULL, hpd_irq, - flags, "hpd", output); - if (err < 0) { - dev_err(output->dev, "failed to request IRQ#%u: %d\n", - output->hpd_irq, err); - goto free_hpd; - } - - output->connector.polled = DRM_CONNECTOR_POLL_HPD; - } - - switch (output->type) { - case TEGRA_OUTPUT_RGB: - connector = DRM_MODE_CONNECTOR_LVDS; - encoder = DRM_MODE_ENCODER_LVDS; - break; - - case TEGRA_OUTPUT_HDMI: - connector = DRM_MODE_CONNECTOR_HDMIA; - encoder = DRM_MODE_ENCODER_TMDS; - break; - - default: - connector = DRM_MODE_CONNECTOR_Unknown; - encoder = DRM_MODE_ENCODER_NONE; - break; - } - - drm_connector_init(drm, &output->connector, &connector_funcs, - connector); - drm_connector_helper_add(&output->connector, &connector_helper_funcs); - - drm_encoder_init(drm, &output->encoder, &encoder_funcs, encoder); - drm_encoder_helper_add(&output->encoder, &encoder_helper_funcs); - - drm_mode_connector_attach_encoder(&output->connector, &output->encoder); - drm_sysfs_connector_add(&output->connector); - - output->encoder.possible_crtcs = 0x3; - - return 0; - -free_hpd: - gpio_free(output->hpd_gpio); - - return err; -} - -int tegra_output_exit(struct tegra_output *output) -{ - if (gpio_is_valid(output->hpd_gpio)) { - free_irq(output->hpd_irq, output); - gpio_free(output->hpd_gpio); - } - - if (output->ddc) - put_device(&output->ddc->dev); - - return 0; -} |