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path: root/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
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Diffstat (limited to 'drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c')
-rw-r--r--drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c b/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
deleted file mode 100644
index 3ab50fd1f3f2..000000000000
--- a/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
+++ /dev/null
@@ -1,262 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * LCD panel driver for Sharp LS037V7DW01
- *
- * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
- * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
- */
-
-#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/regulator/consumer.h>
-
-#include "../dss/omapdss.h"
-
-struct panel_drv_data {
- struct omap_dss_device dssdev;
- struct regulator *vcc;
-
- struct videomode vm;
-
- 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 videomode sharp_ls_vm = {
- .hactive = 480,
- .vactive = 640,
-
- .pixelclock = 19200000,
-
- .hsync_len = 2,
- .hfront_porch = 1,
- .hback_porch = 28,
-
- .vsync_len = 1,
- .vfront_porch = 1,
- .vback_porch = 1,
-
- .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW,
-};
-
-#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
-
-static int sharp_ls_connect(struct omap_dss_device *src,
- struct omap_dss_device *dst)
-{
- return 0;
-}
-
-static void sharp_ls_disconnect(struct omap_dss_device *src,
- struct omap_dss_device *dst)
-{
-}
-
-static void sharp_ls_pre_enable(struct omap_dss_device *dssdev)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
- int r;
-
- if (ddata->vcc) {
- r = regulator_enable(ddata->vcc);
- if (r)
- dev_err(dssdev->dev, "%s: failed to enable regulator\n",
- __func__);
- }
-}
-
-static void sharp_ls_enable(struct omap_dss_device *dssdev)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
-
- /* 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);
-}
-
-static void sharp_ls_disable(struct omap_dss_device *dssdev)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
-
- 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);
-}
-
-static void sharp_ls_post_disable(struct omap_dss_device *dssdev)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
-
- if (ddata->vcc)
- regulator_disable(ddata->vcc);
-}
-
-static int sharp_ls_get_modes(struct omap_dss_device *dssdev,
- struct drm_connector *connector)
-{
- struct panel_drv_data *ddata = to_panel_data(dssdev);
-
- return omapdss_display_get_modes(connector, &ddata->vm);
-}
-
-static const struct omap_dss_device_ops sharp_ls_ops = {
- .connect = sharp_ls_connect,
- .disconnect = sharp_ls_disconnect,
-
- .pre_enable = sharp_ls_pre_enable,
- .enable = sharp_ls_enable,
- .disable = sharp_ls_disable,
- .post_disable = sharp_ls_post_disable,
-
- .get_modes = sharp_ls_get_modes,
-};
-
-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);
- 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;
-
- 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);
-
- r = sharp_ls_probe_of(pdev);
- if (r)
- return r;
-
- ddata->vm = sharp_ls_vm;
-
- dssdev = &ddata->dssdev;
- dssdev->dev = &pdev->dev;
- dssdev->ops = &sharp_ls_ops;
- dssdev->type = OMAP_DISPLAY_TYPE_DPI;
- dssdev->display = true;
- dssdev->owner = THIS_MODULE;
- dssdev->of_ports = BIT(0);
- dssdev->ops_flags = OMAP_DSS_DEVICE_OP_MODES;
-
- /*
- * Note: According to the panel documentation:
- * DATA needs to be driven on the FALLING edge
- */
- dssdev->bus_flags = DRM_BUS_FLAG_DE_HIGH
- | DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE
- | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE;
-
- omapdss_display_init(dssdev);
- omapdss_device_register(dssdev);
-
- return 0;
-}
-
-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;
-
- omapdss_device_unregister(dssdev);
-
- if (omapdss_device_is_enabled(dssdev)) {
- sharp_ls_disable(dssdev);
- sharp_ls_post_disable(dssdev);
- }
-
- 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");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.