[deliverable/linux.git] / drivers / video / fbdev / omap2 / omapfb / displays / panel-sharp-ls037v7dw01.c

/*
 * 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)
{
	int r;

	r = devm_gpio_request_one(dev, gpio, flags, desc);
	if (r) {
		*gpiod = NULL;
		return r == -ENOENT ? 0 : r;
	}

	*gpiod = gpio_to_desc(gpio);

	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");
Commit	Line	Data
f76ee892 TV	1	/*
	2	* LCD panel driver for Sharp LS037V7DW01
	3	*
	4	* Copyright (C) 2013 Texas Instruments
	5	* Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License version 2 as published by
	9	* the Free Software Foundation.
	10	*/
	11
	12	#include <linux/delay.h>
	13	#include <linux/gpio.h>
	14	#include <linux/module.h>
	15	#include <linux/of.h>
	16	#include <linux/of_gpio.h>
	17	#include <linux/platform_device.h>
	18	#include <linux/slab.h>
	19	#include <linux/regulator/consumer.h>
	20	#include <video/omapdss.h>
	21	#include <video/omap-panel-data.h>
	22
	23	struct panel_drv_data {
	24	struct omap_dss_device dssdev;
	25	struct omap_dss_device *in;
	26	struct regulator *vcc;
	27
	28	int data_lines;
	29
	30	struct omap_video_timings videomode;
	31
	32	struct gpio_desc resb_gpio; / low = reset active min 20 us */
	33	struct gpio_desc ini_gpio; / high = power on */
	34	struct gpio_desc mo_gpio; / low = 480x640, high = 240x320 */
	35	struct gpio_desc lr_gpio; / high = conventional horizontal scanning */
	36	struct gpio_desc ud_gpio; / high = conventional vertical scanning */
	37	};
	38
	39	static const struct omap_video_timings sharp_ls_timings = {
	40	.x_res = 480,
	41	.y_res = 640,
	42
	43	.pixelclock = 19200000,
	44
	45	.hsw = 2,
	46	.hfp = 1,
	47	.hbp = 28,
	48
	49	.vsw = 1,
	50	.vfp = 1,
	51	.vbp = 1,
	52
	53	.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
	54	.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
	55	.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
	56	.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
	57	.sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE,
	58	};
	59
	60	#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
	61
	62	static int sharp_ls_connect(struct omap_dss_device *dssdev)
	63	{
	64	struct panel_drv_data *ddata = to_panel_data(dssdev);
65	struct omap_dss_device *in = ddata->in;
66	int r;
67
68	if (omapdss_device_is_connected(dssdev))
69	return 0;
70
71	r = in->ops.dpi->connect(in, dssdev);
72	if (r)
73	return r;
74
75	return 0;
76	}
77
78	static void sharp_ls_disconnect(struct omap_dss_device *dssdev)
79	{
80	struct panel_drv_data *ddata = to_panel_data(dssdev);
81	struct omap_dss_device *in = ddata->in;
82
83	if (!omapdss_device_is_connected(dssdev))
84	return;
85
86	in->ops.dpi->disconnect(in, dssdev);
87	}
88
89	static int sharp_ls_enable(struct omap_dss_device *dssdev)
90	{
91	struct panel_drv_data *ddata = to_panel_data(dssdev);
92	struct omap_dss_device *in = ddata->in;
93	int r;
94
95	if (!omapdss_device_is_connected(dssdev))
96	return -ENODEV;
97
98	if (omapdss_device_is_enabled(dssdev))
99	return 0;
100
101	if (ddata->data_lines)
102	in->ops.dpi->set_data_lines(in, ddata->data_lines);
103	in->ops.dpi->set_timings(in, &ddata->videomode);
104
105	if (ddata->vcc) {
106	r = regulator_enable(ddata->vcc);
107	if (r != 0)
108	return r;
109	}
110
111	r = in->ops.dpi->enable(in);
112	if (r) {
113	regulator_disable(ddata->vcc);
114	return r;
115	}
116
117	/* wait couple of vsyncs until enabling the LCD */
118	msleep(50);
119
120	if (ddata->resb_gpio)
121	gpiod_set_value_cansleep(ddata->resb_gpio, 1);
122
123	if (ddata->ini_gpio)
124	gpiod_set_value_cansleep(ddata->ini_gpio, 1);
125
126	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
127
128	return 0;
129	}
130
131	static void sharp_ls_disable(struct omap_dss_device *dssdev)
132	{
133	struct panel_drv_data *ddata = to_panel_data(dssdev);
134	struct omap_dss_device *in = ddata->in;
135
136	if (!omapdss_device_is_enabled(dssdev))
137	return;
138
139	if (ddata->ini_gpio)
140	gpiod_set_value_cansleep(ddata->ini_gpio, 0);
141
142	if (ddata->resb_gpio)
143	gpiod_set_value_cansleep(ddata->resb_gpio, 0);
144
145	/* wait at least 5 vsyncs after disabling the LCD */
146
147	msleep(100);
148
149	in->ops.dpi->disable(in);
150
151	if (ddata->vcc)
152	regulator_disable(ddata->vcc);
153
154	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
155	}
156
157	static void sharp_ls_set_timings(struct omap_dss_device *dssdev,
158	struct omap_video_timings *timings)
159	{
160	struct panel_drv_data *ddata = to_panel_data(dssdev);
161	struct omap_dss_device *in = ddata->in;
162
163	ddata->videomode = *timings;
164	dssdev->panel.timings = *timings;
165
166	in->ops.dpi->set_timings(in, timings);
167	}
168
169	static void sharp_ls_get_timings(struct omap_dss_device *dssdev,
170	struct omap_video_timings *timings)
171	{
172	struct panel_drv_data *ddata = to_panel_data(dssdev);
173
174	*timings = ddata->videomode;
175	}
176
177	static int sharp_ls_check_timings(struct omap_dss_device *dssdev,
178	struct omap_video_timings *timings)
179	{
180	struct panel_drv_data *ddata = to_panel_data(dssdev);
181	struct omap_dss_device *in = ddata->in;
182
183	return in->ops.dpi->check_timings(in, timings);
184	}
185
186	static struct omap_dss_driver sharp_ls_ops = {
187	.connect = sharp_ls_connect,
188	.disconnect = sharp_ls_disconnect,
189
190	.enable = sharp_ls_enable,
191	.disable = sharp_ls_disable,
192
193	.set_timings = sharp_ls_set_timings,
194	.get_timings = sharp_ls_get_timings,
195	.check_timings = sharp_ls_check_timings,
196
197	.get_resolution = omapdss_default_get_resolution,
198	};
199
200	static int sharp_ls_get_gpio(struct device *dev, int gpio, unsigned long flags,
201	char desc, struct gpio_desc *gpiod)
202	{
f76ee892 TV	203	int r;
f76ee892 TV	204
f76ee892	205	r = devm_gpio_request_one(dev, gpio, flags, desc);
4dacad61 VZ	206	if (r) {
4dacad61 VZ	207	*gpiod = NULL;
f76ee892	208	return r == -ENOENT ? 0 : r;
4dacad61	209	}
f76ee892	210
4dacad61	211	*gpiod = gpio_to_desc(gpio);
f76ee892	212
f76ee892 TV	213	return 0;
	214	}
	215
	216	static int sharp_ls_probe_pdata(struct platform_device *pdev)
	217	{
	218	const struct panel_sharp_ls037v7dw01_platform_data *pdata;
	219	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
	220	struct omap_dss_device dssdev, in;
	221	int r;
	222
	223	pdata = dev_get_platdata(&pdev->dev);
	224
	225	in = omap_dss_find_output(pdata->source);
	226	if (in == NULL) {
	227	dev_err(&pdev->dev, "failed to find video source '%s'\n",
	228	pdata->source);
	229	return -EPROBE_DEFER;
	230	}
	231
	232	ddata->in = in;
	233
	234	ddata->data_lines = pdata->data_lines;
	235
	236	dssdev = &ddata->dssdev;
	237	dssdev->name = pdata->name;
	238
	239	r = sharp_ls_get_gpio(&pdev->dev, pdata->mo_gpio, GPIOF_OUT_INIT_LOW,
	240	"lcd MO", &ddata->mo_gpio);
	241	if (r)
	242	return r;
	243	r = sharp_ls_get_gpio(&pdev->dev, pdata->lr_gpio, GPIOF_OUT_INIT_HIGH,
	244	"lcd LR", &ddata->lr_gpio);
	245	if (r)
	246	return r;
	247	r = sharp_ls_get_gpio(&pdev->dev, pdata->ud_gpio, GPIOF_OUT_INIT_HIGH,
	248	"lcd UD", &ddata->ud_gpio);
	249	if (r)
	250	return r;
	251	r = sharp_ls_get_gpio(&pdev->dev, pdata->resb_gpio, GPIOF_OUT_INIT_LOW,
	252	"lcd RESB", &ddata->resb_gpio);
	253	if (r)
	254	return r;
	255	r = sharp_ls_get_gpio(&pdev->dev, pdata->ini_gpio, GPIOF_OUT_INIT_LOW,
	256	"lcd INI", &ddata->ini_gpio);
	257	if (r)
	258	return r;
	259
	260	return 0;
	261	}
	262
	263	static int sharp_ls_get_gpio_of(struct device *dev, int index, int val,
	264	const char desc, struct gpio_desc *gpiod)
	265	{
	266	struct gpio_desc *gd;
	267
	268	*gpiod = NULL;
	269
	270	gd = devm_gpiod_get_index(dev, desc, index, GPIOD_OUT_LOW);
	271	if (IS_ERR(gd))
	272	return PTR_ERR(gd);
	273
	274	*gpiod = gd;
	275	return 0;
	276	}
277
278	static int sharp_ls_probe_of(struct platform_device *pdev)
279	{
280	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
281	struct device_node *node = pdev->dev.of_node;
282	struct omap_dss_device *in;
283	int r;
284
285	ddata->vcc = devm_regulator_get(&pdev->dev, "envdd");
286	if (IS_ERR(ddata->vcc)) {
287	dev_err(&pdev->dev, "failed to get regulator\n");
288	return PTR_ERR(ddata->vcc);
289	}
290
291	/* lcd INI */
292	r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "enable", &ddata->ini_gpio);
293	if (r)
294	return r;
295
296	/* lcd RESB */
297	r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "reset", &ddata->resb_gpio);
298	if (r)
299	return r;
300
301	/* lcd MO */
302	r = sharp_ls_get_gpio_of(&pdev->dev, 0, 0, "mode", &ddata->mo_gpio);
303	if (r)
304	return r;
305
306	/* lcd LR */
307	r = sharp_ls_get_gpio_of(&pdev->dev, 1, 1, "mode", &ddata->lr_gpio);
308	if (r)
309	return r;
310
311	/* lcd UD */
312	r = sharp_ls_get_gpio_of(&pdev->dev, 2, 1, "mode", &ddata->ud_gpio);
313	if (r)
314	return r;
315
316	in = omapdss_of_find_source_for_first_ep(node);
317	if (IS_ERR(in)) {
318	dev_err(&pdev->dev, "failed to find video source\n");
319	return PTR_ERR(in);
320	}
321
322	ddata->in = in;
323
324	return 0;
325	}
326
327	static int sharp_ls_probe(struct platform_device *pdev)
328	{
329	struct panel_drv_data *ddata;
330	struct omap_dss_device *dssdev;
331	int r;
332
333	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
334	if (ddata == NULL)
335	return -ENOMEM;
336
337	platform_set_drvdata(pdev, ddata);
338
339	if (dev_get_platdata(&pdev->dev)) {
340	r = sharp_ls_probe_pdata(pdev);
341	if (r)
342	return r;
343	} else if (pdev->dev.of_node) {
344	r = sharp_ls_probe_of(pdev);
345	if (r)
346	return r;
347	} else {
348	return -ENODEV;
349	}
350
351	ddata->videomode = sharp_ls_timings;
352
353	dssdev = &ddata->dssdev;
354	dssdev->dev = &pdev->dev;
355	dssdev->driver = &sharp_ls_ops;
356	dssdev->type = OMAP_DISPLAY_TYPE_DPI;
357	dssdev->owner = THIS_MODULE;
358	dssdev->panel.timings = ddata->videomode;
359	dssdev->phy.dpi.data_lines = ddata->data_lines;
360
361	r = omapdss_register_display(dssdev);
362	if (r) {
363	dev_err(&pdev->dev, "Failed to register panel\n");
364	goto err_reg;
365	}
366
367	return 0;
368
369	err_reg:
370	omap_dss_put_device(ddata->in);
371	return r;
372	}
373
374	static int __exit sharp_ls_remove(struct platform_device *pdev)
375	{
376	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
377	struct omap_dss_device *dssdev = &ddata->dssdev;
378	struct omap_dss_device *in = ddata->in;
379
380	omapdss_unregister_display(dssdev);
381
382	sharp_ls_disable(dssdev);
383	sharp_ls_disconnect(dssdev);
384
385	omap_dss_put_device(in);
386
387	return 0;
388	}
389
390	static const struct of_device_id sharp_ls_of_match[] = {
391	{ .compatible = "omapdss,sharp,ls037v7dw01", },
392	{},
393	};
394
395	MODULE_DEVICE_TABLE(of, sharp_ls_of_match);
396
397	static struct platform_driver sharp_ls_driver = {
398	.probe = sharp_ls_probe,
399	.remove = __exit_p(sharp_ls_remove),
400	.driver = {
401	.name = "panel-sharp-ls037v7dw01",
402	.of_match_table = sharp_ls_of_match,
403	.suppress_bind_attrs = true,
404	},
405	};
406
407	module_platform_driver(sharp_ls_driver);
408
409	MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
410	MODULE_DESCRIPTION("Sharp LS037V7DW01 Panel Driver");
411	MODULE_LICENSE("GPL");