diff options
Diffstat (limited to 'drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c')
| -rw-r--r-- | drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c | 415 |
1 files changed, 0 insertions, 415 deletions
diff --git a/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c b/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c deleted file mode 100644 index abfd1f6e3327..000000000000 --- a/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c +++ /dev/null @@ -1,415 +0,0 @@ -/* - * LCD panel driver for Sharp LS037V7DW01 - * - * 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/delay.h> -#include <linux/gpio.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/of_gpio.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/regulator/consumer.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; - struct regulator *vcc; - - int data_lines; - - struct omap_video_timings videomode; - - struct gpio_desc *resb_gpio; /* low = reset active min 20 us */ - struct gpio_desc *ini_gpio; /* high = power on */ - struct gpio_desc *mo_gpio; /* low = 480x640, high = 240x320 */ - struct gpio_desc *lr_gpio; /* high = conventional horizontal scanning */ - struct gpio_desc *ud_gpio; /* high = conventional vertical scanning */ -}; - -static const struct omap_video_timings sharp_ls_timings = { - .x_res = 480, - .y_res = 640, - - .pixelclock = 19200000, - - .hsw = 2, - .hfp = 1, - .hbp = 28, - - .vsw = 1, - .vfp = 1, - .vbp = 1, - - .vsync_level = OMAPDSS_SIG_ACTIVE_LOW, - .hsync_level = OMAPDSS_SIG_ACTIVE_LOW, - .data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE, - .de_level = OMAPDSS_SIG_ACTIVE_HIGH, - .sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE, -}; - -#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev) - -static int sharp_ls_connect(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 0; - - r = in->ops.dpi->connect(in, dssdev); - if (r) - return r; - - return 0; -} - -static void sharp_ls_disconnect(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_connected(dssdev)) - return; - - in->ops.dpi->disconnect(in, dssdev); -} - -static int sharp_ls_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; - - if (ddata->data_lines) - in->ops.dpi->set_data_lines(in, ddata->data_lines); - in->ops.dpi->set_timings(in, &ddata->videomode); - - if (ddata->vcc) { - r = regulator_enable(ddata->vcc); - if (r != 0) - return r; - } - - r = in->ops.dpi->enable(in); - if (r) { - regulator_disable(ddata->vcc); - return r; - } - - /* wait couple of vsyncs until enabling the LCD */ - msleep(50); - - if (ddata->resb_gpio) - gpiod_set_value_cansleep(ddata->resb_gpio, 1); - - if (ddata->ini_gpio) - gpiod_set_value_cansleep(ddata->ini_gpio, 1); - - dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; - - return 0; -} - -static void sharp_ls_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 (ddata->ini_gpio) - gpiod_set_value_cansleep(ddata->ini_gpio, 0); - - if (ddata->resb_gpio) - gpiod_set_value_cansleep(ddata->resb_gpio, 0); - - /* wait at least 5 vsyncs after disabling the LCD */ - - msleep(100); - - in->ops.dpi->disable(in); - - if (ddata->vcc) - regulator_disable(ddata->vcc); - - dssdev->state = OMAP_DSS_DISPLAY_DISABLED; -} - -static void sharp_ls_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->videomode = *timings; - dssdev->panel.timings = *timings; - - in->ops.dpi->set_timings(in, timings); -} - -static void sharp_ls_get_timings(struct omap_dss_device *dssdev, - struct omap_video_timings *timings) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - - *timings = ddata->videomode; -} - -static int sharp_ls_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.dpi->check_timings(in, timings); -} - -static struct omap_dss_driver sharp_ls_ops = { - .connect = sharp_ls_connect, - .disconnect = sharp_ls_disconnect, - - .enable = sharp_ls_enable, - .disable = sharp_ls_disable, - - .set_timings = sharp_ls_set_timings, - .get_timings = sharp_ls_get_timings, - .check_timings = sharp_ls_check_timings, - - .get_resolution = omapdss_default_get_resolution, -}; - -static int sharp_ls_get_gpio(struct device *dev, int gpio, unsigned long flags, - char *desc, struct gpio_desc **gpiod) -{ - struct gpio_desc *gd; - int r; - - *gpiod = NULL; - - r = devm_gpio_request_one(dev, gpio, flags, desc); - if (r) - return r == -ENOENT ? 0 : r; - - gd = gpio_to_desc(gpio); - if (IS_ERR(gd)) - return PTR_ERR(gd) == -ENOENT ? 0 : PTR_ERR(gd); - - *gpiod = gd; - return 0; -} - -static int sharp_ls_probe_pdata(struct platform_device *pdev) -{ - const struct panel_sharp_ls037v7dw01_platform_data *pdata; - struct panel_drv_data *ddata = platform_get_drvdata(pdev); - struct omap_dss_device *dssdev, *in; - int r; - - pdata = dev_get_platdata(&pdev->dev); - - in = omap_dss_find_output(pdata->source); - if (in == NULL) { - dev_err(&pdev->dev, "failed to find video source '%s'\n", - pdata->source); - return -EPROBE_DEFER; - } - - ddata->in = in; - - ddata->data_lines = pdata->data_lines; - - dssdev = &ddata->dssdev; - dssdev->name = pdata->name; - - r = sharp_ls_get_gpio(&pdev->dev, pdata->mo_gpio, GPIOF_OUT_INIT_LOW, - "lcd MO", &ddata->mo_gpio); - if (r) - return r; - r = sharp_ls_get_gpio(&pdev->dev, pdata->lr_gpio, GPIOF_OUT_INIT_HIGH, - "lcd LR", &ddata->lr_gpio); - if (r) - return r; - r = sharp_ls_get_gpio(&pdev->dev, pdata->ud_gpio, GPIOF_OUT_INIT_HIGH, - "lcd UD", &ddata->ud_gpio); - if (r) - return r; - r = sharp_ls_get_gpio(&pdev->dev, pdata->resb_gpio, GPIOF_OUT_INIT_LOW, - "lcd RESB", &ddata->resb_gpio); - if (r) - return r; - r = sharp_ls_get_gpio(&pdev->dev, pdata->ini_gpio, GPIOF_OUT_INIT_LOW, - "lcd INI", &ddata->ini_gpio); - if (r) - return r; - - return 0; -} - -static int sharp_ls_get_gpio_of(struct device *dev, int index, int val, - const char *desc, struct gpio_desc **gpiod) -{ - struct gpio_desc *gd; - - *gpiod = NULL; - - gd = devm_gpiod_get_index(dev, desc, index, GPIOD_OUT_LOW); - if (IS_ERR(gd)) - return PTR_ERR(gd); - - *gpiod = gd; - return 0; -} - -static int sharp_ls_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 r; - - ddata->vcc = devm_regulator_get(&pdev->dev, "envdd"); - if (IS_ERR(ddata->vcc)) { - dev_err(&pdev->dev, "failed to get regulator\n"); - return PTR_ERR(ddata->vcc); - } - - /* lcd INI */ - r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "enable", &ddata->ini_gpio); - if (r) - return r; - - /* lcd RESB */ - r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "reset", &ddata->resb_gpio); - if (r) - return r; - - /* lcd MO */ - r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "mode", &ddata->mo_gpio); - if (r) - return r; - - /* lcd LR */ - r = sharp_ls_get_gpio_of(&pdev->dev, 1, 1, "mode", &ddata->lr_gpio); - if (r) - return r; - - /* lcd UD */ - r = sharp_ls_get_gpio_of(&pdev->dev, 2, 1, "mode", &ddata->ud_gpio); - if (r) - return r; - - 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 sharp_ls_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 == NULL) - return -ENOMEM; - - platform_set_drvdata(pdev, ddata); - - if (dev_get_platdata(&pdev->dev)) { - r = sharp_ls_probe_pdata(pdev); - if (r) - return r; - } else if (pdev->dev.of_node) { - r = sharp_ls_probe_of(pdev); - if (r) - return r; - } else { - return -ENODEV; - } - - ddata->videomode = sharp_ls_timings; - - dssdev = &ddata->dssdev; - dssdev->dev = &pdev->dev; - dssdev->driver = &sharp_ls_ops; - dssdev->type = OMAP_DISPLAY_TYPE_DPI; - dssdev->owner = THIS_MODULE; - dssdev->panel.timings = ddata->videomode; - dssdev->phy.dpi.data_lines = ddata->data_lines; - - 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 int __exit sharp_ls_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(dssdev); - - sharp_ls_disable(dssdev); - sharp_ls_disconnect(dssdev); - - omap_dss_put_device(in); - - return 0; -} - -static const struct of_device_id sharp_ls_of_match[] = { - { .compatible = "omapdss,sharp,ls037v7dw01", }, - {}, -}; - -MODULE_DEVICE_TABLE(of, sharp_ls_of_match); - -static struct platform_driver sharp_ls_driver = { - .probe = sharp_ls_probe, - .remove = __exit_p(sharp_ls_remove), - .driver = { - .name = "panel-sharp-ls037v7dw01", - .of_match_table = sharp_ls_of_match, - .suppress_bind_attrs = true, - }, -}; - -module_platform_driver(sharp_ls_driver); - -MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>"); -MODULE_DESCRIPTION("Sharp LS037V7DW01 Panel Driver"); -MODULE_LICENSE("GPL"); |