[deliverable/linux.git] / drivers / video / omap2 / displays / panel-generic-dpi.c

/*
 * Generic DPI Panels support
 *
 * Copyright (C) 2010 Canonical Ltd.
 * Author: Bryan Wu <bryan.wu@canonical.com>
 *
 * LCD panel driver for Sharp LQ043T1DG01
 *
 * Copyright (C) 2009 Texas Instruments Inc
 * Author: Vaibhav Hiremath <hvaibhav@ti.com>
 *
 * LCD panel driver for Toppoly TDO35S
 *
 * Copyright (C) 2009 CompuLab, Ltd.
 * Author: Mike Rapoport <mike@compulab.co.il>
 *
 * Copyright (C) 2008 Nokia Corporation
 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.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.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <video/omapdss.h>

#include <video/omap-panel-generic-dpi.h>

struct panel_config {
	struct omap_video_timings timings;

	int acbi;	/* ac-bias pin transitions per interrupt */
	/* Unit: line clocks */
	int acb;	/* ac-bias pin frequency */

	enum omap_panel_config config;

	int power_on_delay;
	int power_off_delay;

	/*
	 * Used to match device to panel configuration
	 * when use generic panel driver
	 */
	const char *name;
};

/* Panel configurations */
static struct panel_config generic_dpi_panels[] = {
	/* Generic Panel */
	{
		{
			.x_res		= 640,
			.y_res		= 480,

			.pixel_clock	= 23500,

			.hfp		= 48,
			.hsw		= 32,
			.hbp		= 80,

			.vfp		= 3,
			.vsw		= 4,
			.vbp		= 7,
		},
		.acbi			= 0x0,
		.acb			= 0x0,
		.config			= OMAP_DSS_LCD_TFT,
		.power_on_delay		= 0,
		.power_off_delay	= 0,
		.name			= "generic",
	},

	/* Sharp LQ043T1DG01 */
	{
		{
			.x_res		= 480,
			.y_res		= 272,

			.pixel_clock	= 9000,

			.hsw		= 42,
			.hfp		= 3,
			.hbp		= 2,

			.vsw		= 11,
			.vfp		= 3,
			.vbp		= 2,
		},
		.acbi			= 0x0,
		.acb			= 0x0,
		.config			= OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
					OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO,
		.power_on_delay		= 50,
		.power_off_delay	= 100,
		.name			= "sharp_lq",
	},

	/* Sharp LS037V7DW01 */
	{
		{
			.x_res		= 480,
			.y_res		= 640,

			.pixel_clock	= 19200,

			.hsw		= 2,
			.hfp		= 1,
			.hbp		= 28,

			.vsw		= 1,
			.vfp		= 1,
			.vbp		= 1,
		},
		.acbi			= 0x0,
		.acb			= 0x28,
		.config			= OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
						OMAP_DSS_LCD_IHS,
		.power_on_delay		= 50,
		.power_off_delay	= 100,
		.name			= "sharp_ls",
	},

	/* Toppoly TDO35S */
	{
		{
			.x_res		= 480,
			.y_res		= 640,

			.pixel_clock	= 26000,

			.hfp		= 104,
			.hsw		= 8,
			.hbp		= 8,

			.vfp		= 4,
			.vsw		= 2,
			.vbp		= 2,
		},
		.acbi			= 0x0,
		.acb			= 0x0,
		.config			= OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
					OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC |
					OMAP_DSS_LCD_ONOFF,
		.power_on_delay		= 0,
		.power_off_delay	= 0,
		.name			= "toppoly_tdo35s",
	},

	/* Samsung LTE430WQ-F0C */
	{
		{
			.x_res		= 480,
			.y_res		= 272,

			.pixel_clock	= 9200,

			.hfp		= 8,
			.hsw		= 41,
			.hbp		= 45 - 41,

			.vfp		= 4,
			.vsw		= 10,
			.vbp		= 12 - 10,
		},
		.acbi			= 0x0,
		.acb			= 0x0,
		.config			= OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
						OMAP_DSS_LCD_IHS,
		.power_on_delay		= 0,
		.power_off_delay	= 0,
		.name			= "samsung_lte430wq_f0c",
	},
};

struct panel_drv_data {

	struct omap_dss_device *dssdev;

	struct panel_config *panel_config;
};

static inline struct panel_generic_dpi_data
*get_panel_data(const struct omap_dss_device *dssdev)
{
	return (struct panel_generic_dpi_data *) dssdev->data;
}

static int generic_dpi_panel_power_on(struct omap_dss_device *dssdev)
{
	int r;
	struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
	struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
	struct panel_config *panel_config = drv_data->panel_config;

	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
		return 0;

	r = omapdss_dpi_display_enable(dssdev);
	if (r)
		goto err0;

	/* wait couple of vsyncs until enabling the LCD */
	if (panel_config->power_on_delay)
		msleep(panel_config->power_on_delay);

	if (panel_data->platform_enable) {
		r = panel_data->platform_enable(dssdev);
		if (r)
			goto err1;
	}

	return 0;
err1:
	omapdss_dpi_display_disable(dssdev);
err0:
	return r;
}

static void generic_dpi_panel_power_off(struct omap_dss_device *dssdev)
{
	struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
	struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
	struct panel_config *panel_config = drv_data->panel_config;

	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
		return;

	if (panel_data->platform_disable)
		panel_data->platform_disable(dssdev);

	/* wait couple of vsyncs after disabling the LCD */
	if (panel_config->power_off_delay)
		msleep(panel_config->power_off_delay);

	omapdss_dpi_display_disable(dssdev);
}

static int generic_dpi_panel_probe(struct omap_dss_device *dssdev)
{
	struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
	struct panel_config *panel_config = NULL;
	struct panel_drv_data *drv_data = NULL;
	int i;

	dev_dbg(&dssdev->dev, "probe\n");

	if (!panel_data || !panel_data->name)
		return -EINVAL;

	for (i = 0; i < ARRAY_SIZE(generic_dpi_panels); i++) {
		if (strcmp(panel_data->name, generic_dpi_panels[i].name) == 0) {
			panel_config = &generic_dpi_panels[i];
			break;
		}
	}

	if (!panel_config)
		return -EINVAL;

	dssdev->panel.config = panel_config->config;
	dssdev->panel.timings = panel_config->timings;
	dssdev->panel.acb = panel_config->acb;
	dssdev->panel.acbi = panel_config->acbi;

	drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL);
	if (!drv_data)
		return -ENOMEM;

	drv_data->dssdev = dssdev;
	drv_data->panel_config = panel_config;

	dev_set_drvdata(&dssdev->dev, drv_data);

	return 0;
}

static void generic_dpi_panel_remove(struct omap_dss_device *dssdev)
{
	struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);

	dev_dbg(&dssdev->dev, "remove\n");

	kfree(drv_data);

	dev_set_drvdata(&dssdev->dev, NULL);
}

static int generic_dpi_panel_enable(struct omap_dss_device *dssdev)
{
	int r = 0;

	r = generic_dpi_panel_power_on(dssdev);
	if (r)
		return r;

	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;

	return 0;
}

static void generic_dpi_panel_disable(struct omap_dss_device *dssdev)
{
	generic_dpi_panel_power_off(dssdev);

	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}

static int generic_dpi_panel_suspend(struct omap_dss_device *dssdev)
{
	generic_dpi_panel_power_off(dssdev);

	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;

	return 0;
}

static int generic_dpi_panel_resume(struct omap_dss_device *dssdev)
{
	int r = 0;

	r = generic_dpi_panel_power_on(dssdev);
	if (r)
		return r;

	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;

	return 0;
}

static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev,
		struct omap_video_timings *timings)
{
	dpi_set_timings(dssdev, timings);
}

static void generic_dpi_panel_get_timings(struct omap_dss_device *dssdev,
		struct omap_video_timings *timings)
{
	*timings = dssdev->panel.timings;
}

static int generic_dpi_panel_check_timings(struct omap_dss_device *dssdev,
		struct omap_video_timings *timings)
{
	return dpi_check_timings(dssdev, timings);
}

static struct omap_dss_driver dpi_driver = {
	.probe		= generic_dpi_panel_probe,
	.remove		= generic_dpi_panel_remove,

	.enable		= generic_dpi_panel_enable,
	.disable	= generic_dpi_panel_disable,
	.suspend	= generic_dpi_panel_suspend,
	.resume		= generic_dpi_panel_resume,

	.set_timings	= generic_dpi_panel_set_timings,
	.get_timings	= generic_dpi_panel_get_timings,
	.check_timings	= generic_dpi_panel_check_timings,

	.driver         = {
		.name   = "generic_dpi_panel",
		.owner  = THIS_MODULE,
	},
};

static int __init generic_dpi_panel_drv_init(void)
{
	return omap_dss_register_driver(&dpi_driver);
}

static void __exit generic_dpi_panel_drv_exit(void)
{
	omap_dss_unregister_driver(&dpi_driver);
}

module_init(generic_dpi_panel_drv_init);
module_exit(generic_dpi_panel_drv_exit);
MODULE_LICENSE("GPL");
Commit	Line	Data
a9a62b6a BW	1	/*
	2	* Generic DPI Panels support
	3	*
	4	* Copyright (C) 2010 Canonical Ltd.
	5	* Author: Bryan Wu <bryan.wu@canonical.com>
	6	*
ac1427e1 BW	7	* LCD panel driver for Sharp LQ043T1DG01
	8	*
	9	* Copyright (C) 2009 Texas Instruments Inc
	10	* Author: Vaibhav Hiremath <hvaibhav@ti.com>
	11	*
	12	* LCD panel driver for Toppoly TDO35S
	13	*
	14	* Copyright (C) 2009 CompuLab, Ltd.
	15	* Author: Mike Rapoport <mike@compulab.co.il>
	16	*
a9a62b6a BW	17	* Copyright (C) 2008 Nokia Corporation
	18	* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
	19	*
	20	* This program is free software; you can redistribute it and/or modify it
	21	* under the terms of the GNU General Public License version 2 as published by
	22	* the Free Software Foundation.
	23	*
	24	* This program is distributed in the hope that it will be useful, but WITHOUT
	25	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	26	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	27	* more details.
	28	*
	29	* You should have received a copy of the GNU General Public License along with
	30	* this program. If not, see <http://www.gnu.org/licenses/>.
	31	*/
	32
	33	#include <linux/module.h>
	34	#include <linux/delay.h>
	35	#include <linux/slab.h>
a0b38cc4	36	#include <video/omapdss.h>
a9a62b6a	37
f8ae2f08	38	#include <video/omap-panel-generic-dpi.h>
a9a62b6a BW	39
	40	struct panel_config {
	41	struct omap_video_timings timings;
	42
	43	int acbi; /* ac-bias pin transitions per interrupt */
	44	/* Unit: line clocks */
	45	int acb; /* ac-bias pin frequency */
	46
	47	enum omap_panel_config config;
	48
	49	int power_on_delay;
	50	int power_off_delay;
	51
	52	/*
	53	* Used to match device to panel configuration
	54	* when use generic panel driver
	55	*/
	56	const char *name;
	57	};
	58
	59	/* Panel configurations */
	60	static struct panel_config generic_dpi_panels[] = {
	61	/* Generic Panel */
	62	{
	63	{
	64	.x_res = 640,
	65	.y_res = 480,
	66
	67	.pixel_clock = 23500,
	68
	69	.hfp = 48,
	70	.hsw = 32,
	71	.hbp = 80,
	72
	73	.vfp = 3,
	74	.vsw = 4,
	75	.vbp = 7,
	76	},
	77	.acbi = 0x0,
	78	.acb = 0x0,
	79	.config = OMAP_DSS_LCD_TFT,
	80	.power_on_delay = 0,
	81	.power_off_delay = 0,
	82	.name = "generic",
	83	},
	84
	85	/* Sharp LQ043T1DG01 */
	86	{
	87	{
	88	.x_res = 480,
	89	.y_res = 272,
	90
	91	.pixel_clock = 9000,
	92
	93	.hsw = 42,
	94	.hfp = 3,
	95	.hbp = 2,
	96
	97	.vsw = 11,
	98	.vfp = 3,
	99	.vbp = 2,
	100	},
	101	.acbi = 0x0,
	102	.acb = 0x0,
103	.config = OMAP_DSS_LCD_TFT \| OMAP_DSS_LCD_IVS \|
104	OMAP_DSS_LCD_IHS \| OMAP_DSS_LCD_IEO,
105	.power_on_delay = 50,
106	.power_off_delay = 100,
107	.name = "sharp_lq",
108	},
109
110	/* Sharp LS037V7DW01 */
111	{
112	{
113	.x_res = 480,
114	.y_res = 640,
115
116	.pixel_clock = 19200,
117
118	.hsw = 2,
119	.hfp = 1,
120	.hbp = 28,
121
122	.vsw = 1,
123	.vfp = 1,
124	.vbp = 1,
125	},
126	.acbi = 0x0,
127	.acb = 0x28,
128	.config = OMAP_DSS_LCD_TFT \| OMAP_DSS_LCD_IVS \|
129	OMAP_DSS_LCD_IHS,
130	.power_on_delay = 50,
131	.power_off_delay = 100,
132	.name = "sharp_ls",
133	},
134
135	/* Toppoly TDO35S */
136	{
137	{
138	.x_res = 480,
139	.y_res = 640,
140
141	.pixel_clock = 26000,
142
143	.hfp = 104,
144	.hsw = 8,
145	.hbp = 8,
146
147	.vfp = 4,
148	.vsw = 2,
149	.vbp = 2,
150	},
151	.acbi = 0x0,
152	.acb = 0x0,
153	.config = OMAP_DSS_LCD_TFT \| OMAP_DSS_LCD_IVS \|
154	OMAP_DSS_LCD_IHS \| OMAP_DSS_LCD_IPC \|
155	OMAP_DSS_LCD_ONOFF,
156	.power_on_delay = 0,
157	.power_off_delay = 0,
158	.name = "toppoly_tdo35s",
159	},
09dc89cb TV	160
	161	/* Samsung LTE430WQ-F0C */
	162	{
	163	{
	164	.x_res = 480,
	165	.y_res = 272,
	166
	167	.pixel_clock = 9200,
	168
	169	.hfp = 8,
	170	.hsw = 41,
	171	.hbp = 45 - 41,
	172
	173	.vfp = 4,
	174	.vsw = 10,
	175	.vbp = 12 - 10,
	176	},
	177	.acbi = 0x0,
	178	.acb = 0x0,
	179	.config = OMAP_DSS_LCD_TFT \| OMAP_DSS_LCD_IVS \|
	180	OMAP_DSS_LCD_IHS,
	181	.power_on_delay = 0,
	182	.power_off_delay = 0,
	183	.name = "samsung_lte430wq_f0c",
	184	},
a9a62b6a BW	185	};
	186
	187	struct panel_drv_data {
	188
	189	struct omap_dss_device *dssdev;
	190
	191	struct panel_config *panel_config;
	192	};
	193
	194	static inline struct panel_generic_dpi_data
	195	get_panel_data(const struct omap_dss_device dssdev)
	196	{
	197	return (struct panel_generic_dpi_data *) dssdev->data;
	198	}
	199
	200	static int generic_dpi_panel_power_on(struct omap_dss_device *dssdev)
	201	{
	202	int r;
	203	struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
	204	struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
	205	struct panel_config *panel_config = drv_data->panel_config;
	206
	207	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
	208	return 0;
	209
	210	r = omapdss_dpi_display_enable(dssdev);
	211	if (r)
	212	goto err0;
	213
	214	/* wait couple of vsyncs until enabling the LCD */
	215	if (panel_config->power_on_delay)
	216	msleep(panel_config->power_on_delay);
	217
	218	if (panel_data->platform_enable) {
	219	r = panel_data->platform_enable(dssdev);
	220	if (r)
	221	goto err1;
	222	}
	223
	224	return 0;
	225	err1:
	226	omapdss_dpi_display_disable(dssdev);
	227	err0:
	228	return r;
	229	}
	230
	231	static void generic_dpi_panel_power_off(struct omap_dss_device *dssdev)
	232	{
	233	struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
	234	struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
	235	struct panel_config *panel_config = drv_data->panel_config;
	236
	237	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
	238	return;
	239
	240	if (panel_data->platform_disable)
	241	panel_data->platform_disable(dssdev);
	242
	243	/* wait couple of vsyncs after disabling the LCD */
	244	if (panel_config->power_off_delay)
	245	msleep(panel_config->power_off_delay);
	246
	247	omapdss_dpi_display_disable(dssdev);
	248	}
249
250	static int generic_dpi_panel_probe(struct omap_dss_device *dssdev)
251	{
252	struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
253	struct panel_config *panel_config = NULL;
254	struct panel_drv_data *drv_data = NULL;
255	int i;
256
257	dev_dbg(&dssdev->dev, "probe\n");
258
259	if (!panel_data \|\| !panel_data->name)
260	return -EINVAL;
261
262	for (i = 0; i < ARRAY_SIZE(generic_dpi_panels); i++) {
263	if (strcmp(panel_data->name, generic_dpi_panels[i].name) == 0) {
264	panel_config = &generic_dpi_panels[i];
265	break;
266	}
267	}
268
269	if (!panel_config)
270	return -EINVAL;
271
272	dssdev->panel.config = panel_config->config;
273	dssdev->panel.timings = panel_config->timings;
274	dssdev->panel.acb = panel_config->acb;
275	dssdev->panel.acbi = panel_config->acbi;
276
277	drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL);
278	if (!drv_data)
279	return -ENOMEM;
280
281	drv_data->dssdev = dssdev;
282	drv_data->panel_config = panel_config;
283
284	dev_set_drvdata(&dssdev->dev, drv_data);
285
286	return 0;
287	}
288
289	static void generic_dpi_panel_remove(struct omap_dss_device *dssdev)
290	{
291	struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
292
293	dev_dbg(&dssdev->dev, "remove\n");
294
295	kfree(drv_data);
296
297	dev_set_drvdata(&dssdev->dev, NULL);
298	}
299
300	static int generic_dpi_panel_enable(struct omap_dss_device *dssdev)
301	{
302	int r = 0;
303
304	r = generic_dpi_panel_power_on(dssdev);
305	if (r)
306	return r;
307
308	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
309
310	return 0;
311	}
312
313	static void generic_dpi_panel_disable(struct omap_dss_device *dssdev)
314	{
315	generic_dpi_panel_power_off(dssdev);
316
317	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
318	}
319
320	static int generic_dpi_panel_suspend(struct omap_dss_device *dssdev)
321	{
322	generic_dpi_panel_power_off(dssdev);
323
324	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
325
326	return 0;
327	}
328
329	static int generic_dpi_panel_resume(struct omap_dss_device *dssdev)
330	{
331	int r = 0;
332
333	r = generic_dpi_panel_power_on(dssdev);
334	if (r)
335	return r;
336
337	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
338
339	return 0;
340	}
341
342	static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev,
343	struct omap_video_timings *timings)
344	{
345	dpi_set_timings(dssdev, timings);
346	}
347
348	static void generic_dpi_panel_get_timings(struct omap_dss_device *dssdev,
349	struct omap_video_timings *timings)
350	{
351	*timings = dssdev->panel.timings;
352	}
353
354	static int generic_dpi_panel_check_timings(struct omap_dss_device *dssdev,
355	struct omap_video_timings *timings)
356	{
357	return dpi_check_timings(dssdev, timings);
358	}
359
360	static struct omap_dss_driver dpi_driver = {
361	.probe = generic_dpi_panel_probe,
362	.remove = generic_dpi_panel_remove,
363
364	.enable = generic_dpi_panel_enable,
365	.disable = generic_dpi_panel_disable,
366	.suspend = generic_dpi_panel_suspend,
367	.resume = generic_dpi_panel_resume,
368
369	.set_timings = generic_dpi_panel_set_timings,
370	.get_timings = generic_dpi_panel_get_timings,
371	.check_timings = generic_dpi_panel_check_timings,
372
373	.driver = {
374	.name = "generic_dpi_panel",
375	.owner = THIS_MODULE,
376	},
377	};
378
379	static int __init generic_dpi_panel_drv_init(void)
380	{
381	return omap_dss_register_driver(&dpi_driver);
382	}
383
384	static void __exit generic_dpi_panel_drv_exit(void)
385	{
386	omap_dss_unregister_driver(&dpi_driver);
387	}
388
389	module_init(generic_dpi_panel_drv_init);
390	module_exit(generic_dpi_panel_drv_exit);
391	MODULE_LICENSE("GPL");