diff options
Diffstat (limited to 'drivers/video/fbdev/omap2/displays-new/encoder-tfp410.c')
-rw-r--r-- | drivers/video/fbdev/omap2/displays-new/encoder-tfp410.c | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/drivers/video/fbdev/omap2/displays-new/encoder-tfp410.c b/drivers/video/fbdev/omap2/displays-new/encoder-tfp410.c deleted file mode 100644 index d9048b3..0000000 --- a/drivers/video/fbdev/omap2/displays-new/encoder-tfp410.c +++ /dev/null @@ -1,320 +0,0 @@ -/* - * TFP410 DPI-to-DVI encoder 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/gpio.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/slab.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 pd_gpio; - int data_lines; - - struct omap_video_timings timings; -}; - -#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev) - -static int tfp410_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; - - if (omapdss_device_is_connected(dssdev)) - return -EBUSY; - - r = in->ops.dpi->connect(in, dssdev); - if (r) - return r; - - dst->src = dssdev; - dssdev->dst = dst; - - return 0; -} - -static void tfp410_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(!omapdss_device_is_connected(dssdev)); - if (!omapdss_device_is_connected(dssdev)) - return; - - WARN_ON(dst != dssdev->dst); - if (dst != dssdev->dst) - return; - - dst->src = NULL; - dssdev->dst = NULL; - - in->ops.dpi->disconnect(in, &ddata->dssdev); -} - -static int tfp410_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 (!omapdss_device_is_connected(dssdev)) - return -ENODEV; - - if (omapdss_device_is_enabled(dssdev)) - return 0; - - in->ops.dpi->set_timings(in, &ddata->timings); - if (ddata->data_lines) - in->ops.dpi->set_data_lines(in, ddata->data_lines); - - r = in->ops.dpi->enable(in); - if (r) - return r; - - if (gpio_is_valid(ddata->pd_gpio)) - gpio_set_value_cansleep(ddata->pd_gpio, 1); - - dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; - - return 0; -} - -static void tfp410_disable(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - struct omap_dss_device *in = ddata->in; - - if (!omapdss_device_is_enabled(dssdev)) - return; - - if (gpio_is_valid(ddata->pd_gpio)) - gpio_set_value_cansleep(ddata->pd_gpio, 0); - - in->ops.dpi->disable(in); - - dssdev->state = OMAP_DSS_DISPLAY_DISABLED; -} - -static void tfp410_fix_timings(struct omap_video_timings *timings) -{ - timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE; - timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE; - timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH; -} - -static void tfp410_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; - - tfp410_fix_timings(timings); - - ddata->timings = *timings; - dssdev->panel.timings = *timings; - - in->ops.dpi->set_timings(in, timings); -} - -static void tfp410_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 tfp410_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; - - tfp410_fix_timings(timings); - - return in->ops.dpi->check_timings(in, timings); -} - -static const struct omapdss_dvi_ops tfp410_dvi_ops = { - .connect = tfp410_connect, - .disconnect = tfp410_disconnect, - - .enable = tfp410_enable, - .disable = tfp410_disable, - - .check_timings = tfp410_check_timings, - .set_timings = tfp410_set_timings, - .get_timings = tfp410_get_timings, -}; - -static int tfp410_probe_pdata(struct platform_device *pdev) -{ - struct panel_drv_data *ddata = platform_get_drvdata(pdev); - struct encoder_tfp410_platform_data *pdata; - struct omap_dss_device *dssdev, *in; - - pdata = dev_get_platdata(&pdev->dev); - - ddata->pd_gpio = pdata->power_down_gpio; - - ddata->data_lines = pdata->data_lines; - - 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 tfp410_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; - - gpio = of_get_named_gpio(node, "powerdown-gpios", 0); - - if (gpio_is_valid(gpio) || gpio == -ENOENT) { - ddata->pd_gpio = gpio; - } else { - dev_err(&pdev->dev, "failed to parse PD gpio\n"); - return 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 tfp410_probe(struct platform_device *pdev) -{ - struct panel_drv_data *ddata; - struct omap_dss_device *dssdev; - 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 = tfp410_probe_pdata(pdev); - if (r) - return r; - } else if (pdev->dev.of_node) { - r = tfp410_probe_of(pdev); - if (r) - return r; - } else { - return -ENODEV; - } - - if (gpio_is_valid(ddata->pd_gpio)) { - r = devm_gpio_request_one(&pdev->dev, ddata->pd_gpio, - GPIOF_OUT_INIT_LOW, "tfp410 PD"); - if (r) { - dev_err(&pdev->dev, "Failed to request PD GPIO %d\n", - ddata->pd_gpio); - goto err_gpio; - } - } - - dssdev = &ddata->dssdev; - dssdev->ops.dvi = &tfp410_dvi_ops; - dssdev->dev = &pdev->dev; - dssdev->type = OMAP_DISPLAY_TYPE_DPI; - dssdev->output_type = OMAP_DISPLAY_TYPE_DVI; - dssdev->owner = THIS_MODULE; - dssdev->phy.dpi.data_lines = ddata->data_lines; - dssdev->port_num = 1; - - 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 tfp410_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)) - tfp410_disable(dssdev); - - WARN_ON(omapdss_device_is_connected(dssdev)); - if (omapdss_device_is_connected(dssdev)) - tfp410_disconnect(dssdev, dssdev->dst); - - omap_dss_put_device(in); - - return 0; -} - -static const struct of_device_id tfp410_of_match[] = { - { .compatible = "omapdss,ti,tfp410", }, - {}, -}; - -MODULE_DEVICE_TABLE(of, tfp410_of_match); - -static struct platform_driver tfp410_driver = { - .probe = tfp410_probe, - .remove = __exit_p(tfp410_remove), - .driver = { - .name = "tfp410", - .of_match_table = tfp410_of_match, - .suppress_bind_attrs = true, - }, -}; - -module_platform_driver(tfp410_driver); - -MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>"); -MODULE_DESCRIPTION("TFP410 DPI to DVI encoder driver"); -MODULE_LICENSE("GPL"); |