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path: root/drivers/video/fbdev/omap2/displays-new/encoder-tpd12s015.c
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Diffstat (limited to 'drivers/video/fbdev/omap2/displays-new/encoder-tpd12s015.c')
-rw-r--r--drivers/video/fbdev/omap2/displays-new/encoder-tpd12s015.c379
1 files changed, 0 insertions, 379 deletions
diff --git a/drivers/video/fbdev/omap2/displays-new/encoder-tpd12s015.c b/drivers/video/fbdev/omap2/displays-new/encoder-tpd12s015.c
deleted file mode 100644
index 990af6baeb0f..000000000000
--- a/drivers/video/fbdev/omap2/displays-new/encoder-tpd12s015.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- * TPD12S015 HDMI ESD protection & level shifter chip driver
- *
- * Copyright (C) 2013 Texas Instruments
- * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
- *
- * 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/completion.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/gpio.h>
-#include <linux/platform_device.h>
-#include <linux/of_gpio.h>
-
-#include <video/omapdss.h>
-#include <video/omap-panel-data.h>
-
-struct panel_drv_data {
- struct omap_dss_device dssdev;
- struct omap_dss_device *in;
-
- int ct_cp_hpd_gpio;
- int ls_oe_gpio;
- int hpd_gpio;
-
- struct omap_video_timings timings;
-};
-
-#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
-
-static int tpd_connect(struct omap_dss_device *dssdev,
- struct omap_dss_device *dst)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
- struct omap_dss_device *in = ddata->in;
- int r;
-
- r = in->ops.hdmi->connect(in, dssdev);
- if (r)
- return r;
-
- dst->src = dssdev;
- dssdev->dst = dst;
-
- gpio_set_value_cansleep(ddata->ct_cp_hpd_gpio, 1);
- /* DC-DC converter needs at max 300us to get to 90% of 5V */
- udelay(300);
-
- return 0;
-}
-
-static void tpd_disconnect(struct omap_dss_device *dssdev,
- struct omap_dss_device *dst)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
- struct omap_dss_device *in = ddata->in;
-
- WARN_ON(dst != dssdev->dst);
-
- if (dst != dssdev->dst)
- return;
-
- gpio_set_value_cansleep(ddata->ct_cp_hpd_gpio, 0);
-
- dst->src = NULL;
- dssdev->dst = NULL;
-
- in->ops.hdmi->disconnect(in, &ddata->dssdev);
-}
-
-static int tpd_enable(struct omap_dss_device *dssdev)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
- struct omap_dss_device *in = ddata->in;
- int r;
-
- if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
- 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 tpd_disable(struct omap_dss_device *dssdev)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
- struct omap_dss_device *in = ddata->in;
-
- if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
- return;
-
- in->ops.hdmi->disable(in);
-
- dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
-}
-
-static void tpd_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 tpd_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 tpd_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;
- int r;
-
- r = in->ops.hdmi->check_timings(in, timings);
-
- return r;
-}
-
-static int tpd_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;
- int r;
-
- if (!gpio_get_value_cansleep(ddata->hpd_gpio))
- return -ENODEV;
-
- if (gpio_is_valid(ddata->ls_oe_gpio))
- gpio_set_value_cansleep(ddata->ls_oe_gpio, 1);
-
- r = in->ops.hdmi->read_edid(in, edid, len);
-
- if (gpio_is_valid(ddata->ls_oe_gpio))
- gpio_set_value_cansleep(ddata->ls_oe_gpio, 0);
-
- return r;
-}
-
-static bool tpd_detect(struct omap_dss_device *dssdev)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
-
- return gpio_get_value_cansleep(ddata->hpd_gpio);
-}
-
-static int tpd_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 int tpd_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 const struct omapdss_hdmi_ops tpd_hdmi_ops = {
- .connect = tpd_connect,
- .disconnect = tpd_disconnect,
-
- .enable = tpd_enable,
- .disable = tpd_disable,
-
- .check_timings = tpd_check_timings,
- .set_timings = tpd_set_timings,
- .get_timings = tpd_get_timings,
-
- .read_edid = tpd_read_edid,
- .detect = tpd_detect,
- .set_infoframe = tpd_set_infoframe,
- .set_hdmi_mode = tpd_set_hdmi_mode,
-};
-
-static int tpd_probe_pdata(struct platform_device *pdev)
-{
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
- struct encoder_tpd12s015_platform_data *pdata;
- struct omap_dss_device *dssdev, *in;
-
- pdata = dev_get_platdata(&pdev->dev);
-
- ddata->ct_cp_hpd_gpio = pdata->ct_cp_hpd_gpio;
- ddata->ls_oe_gpio = pdata->ls_oe_gpio;
- ddata->hpd_gpio = pdata->hpd_gpio;
-
- in = omap_dss_find_output(pdata->source);
- if (in == NULL) {
- dev_err(&pdev->dev, "Failed to find video source\n");
- return -ENODEV;
- }
-
- ddata->in = in;
-
- dssdev = &ddata->dssdev;
- dssdev->name = pdata->name;
-
- return 0;
-}
-
-static int tpd_probe_of(struct platform_device *pdev)
-{
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
- struct device_node *node = pdev->dev.of_node;
- struct omap_dss_device *in;
- int gpio;
-
- /* CT CP HPD GPIO */
- gpio = of_get_gpio(node, 0);
- if (!gpio_is_valid(gpio)) {
- dev_err(&pdev->dev, "failed to parse CT CP HPD gpio\n");
- return gpio;
- }
- ddata->ct_cp_hpd_gpio = gpio;
-
- /* LS OE GPIO */
- gpio = of_get_gpio(node, 1);
- if (gpio_is_valid(gpio) || gpio == -ENOENT) {
- ddata->ls_oe_gpio = gpio;
- } else {
- dev_err(&pdev->dev, "failed to parse LS OE gpio\n");
- return gpio;
- }
-
- /* HPD GPIO */
- gpio = of_get_gpio(node, 2);
- if (!gpio_is_valid(gpio)) {
- dev_err(&pdev->dev, "failed to parse HPD gpio\n");
- return gpio;
- }
- ddata->hpd_gpio = gpio;
-
- in = omapdss_of_find_source_for_first_ep(node);
- if (IS_ERR(in)) {
- dev_err(&pdev->dev, "failed to find video source\n");
- return PTR_ERR(in);
- }
-
- ddata->in = in;
-
- return 0;
-}
-
-static int tpd_probe(struct platform_device *pdev)
-{
- struct omap_dss_device *in, *dssdev;
- struct panel_drv_data *ddata;
- int r;
-
- ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
- if (!ddata)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, ddata);
-
- if (dev_get_platdata(&pdev->dev)) {
- r = tpd_probe_pdata(pdev);
- if (r)
- return r;
- } else if (pdev->dev.of_node) {
- r = tpd_probe_of(pdev);
- if (r)
- return r;
- } else {
- return -ENODEV;
- }
-
- r = devm_gpio_request_one(&pdev->dev, ddata->ct_cp_hpd_gpio,
- GPIOF_OUT_INIT_LOW, "hdmi_ct_cp_hpd");
- if (r)
- goto err_gpio;
-
- if (gpio_is_valid(ddata->ls_oe_gpio)) {
- r = devm_gpio_request_one(&pdev->dev, ddata->ls_oe_gpio,
- GPIOF_OUT_INIT_LOW, "hdmi_ls_oe");
- if (r)
- goto err_gpio;
- }
-
- r = devm_gpio_request_one(&pdev->dev, ddata->hpd_gpio,
- GPIOF_DIR_IN, "hdmi_hpd");
- if (r)
- goto err_gpio;
-
- dssdev = &ddata->dssdev;
- dssdev->ops.hdmi = &tpd_hdmi_ops;
- dssdev->dev = &pdev->dev;
- dssdev->type = OMAP_DISPLAY_TYPE_HDMI;
- dssdev->output_type = OMAP_DISPLAY_TYPE_HDMI;
- dssdev->owner = THIS_MODULE;
- dssdev->port_num = 1;
-
- in = ddata->in;
-
- r = omapdss_register_output(dssdev);
- if (r) {
- dev_err(&pdev->dev, "Failed to register output\n");
- goto err_reg;
- }
-
- return 0;
-err_reg:
-err_gpio:
- omap_dss_put_device(ddata->in);
- return r;
-}
-
-static int __exit tpd_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_output(&ddata->dssdev);
-
- WARN_ON(omapdss_device_is_enabled(dssdev));
- if (omapdss_device_is_enabled(dssdev))
- tpd_disable(dssdev);
-
- WARN_ON(omapdss_device_is_connected(dssdev));
- if (omapdss_device_is_connected(dssdev))
- tpd_disconnect(dssdev, dssdev->dst);
-
- omap_dss_put_device(in);
-
- return 0;
-}
-
-static const struct of_device_id tpd_of_match[] = {
- { .compatible = "omapdss,ti,tpd12s015", },
- {},
-};
-
-MODULE_DEVICE_TABLE(of, tpd_of_match);
-
-static struct platform_driver tpd_driver = {
- .probe = tpd_probe,
- .remove = __exit_p(tpd_remove),
- .driver = {
- .name = "tpd12s015",
- .of_match_table = tpd_of_match,
- .suppress_bind_attrs = true,
- },
-};
-
-module_platform_driver(tpd_driver);
-
-MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
-MODULE_DESCRIPTION("TPD12S015 driver");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-05 01:27:51 +0300