as3711_bl.c (4a9c8bb2aca5b5a2a15744333729745dd9903562) as3711_bl.c (d5318d302e7cf6583ec85a2a8bfbb3a3910ae372)
1/*
2 * AS3711 PMIC backlight driver, using DCDC Step Up Converters
3 *
4 * Copyright (C) 2012 Renesas Electronics Corporation
5 * Author: Guennadi Liakhovetski, <g.liakhovetski@gmx.de>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the version 2 of the GNU General Public License as

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23
24enum as3711_bl_type {
25 AS3711_BL_SU1,
26 AS3711_BL_SU2,
27};
28
29struct as3711_bl_data {
30 bool powered;
1/*
2 * AS3711 PMIC backlight driver, using DCDC Step Up Converters
3 *
4 * Copyright (C) 2012 Renesas Electronics Corporation
5 * Author: Guennadi Liakhovetski, <g.liakhovetski@gmx.de>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the version 2 of the GNU General Public License as

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23
24enum as3711_bl_type {
25 AS3711_BL_SU1,
26 AS3711_BL_SU2,
27};
28
29struct as3711_bl_data {
30 bool powered;
31 const char *fb_name;
32 struct device *fb_dev;
33 enum as3711_bl_type type;
34 int brightness;
35 struct backlight_device *bl;
36};
37
38struct as3711_bl_supply {
39 struct as3711_bl_data su1;
40 struct as3711_bl_data su2;

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268 bl = of_get_child_by_name(dev->parent->of_node, "backlight");
269 if (!bl) {
270 dev_dbg(dev, "backlight node not found\n");
271 return -ENODEV;
272 }
273
274 fb = of_parse_phandle(bl, "su1-dev", 0);
275 if (fb) {
31 enum as3711_bl_type type;
32 int brightness;
33 struct backlight_device *bl;
34};
35
36struct as3711_bl_supply {
37 struct as3711_bl_data su1;
38 struct as3711_bl_data su2;

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266 bl = of_get_child_by_name(dev->parent->of_node, "backlight");
267 if (!bl) {
268 dev_dbg(dev, "backlight node not found\n");
269 return -ENODEV;
270 }
271
272 fb = of_parse_phandle(bl, "su1-dev", 0);
273 if (fb) {
276 pdata->su1_fb = fb->full_name;
274 of_node_put(fb);
277
275
276 pdata->su1_fb = true;
277
278 ret = of_property_read_u32(bl, "su1-max-uA", &pdata->su1_max_uA);
279 if (pdata->su1_max_uA <= 0)
280 ret = -EINVAL;
281 if (ret < 0)
282 goto err_put_bl;
283 }
284
285 fb = of_parse_phandle(bl, "su2-dev", 0);
286 if (fb) {
287 int count = 0;
288
278 ret = of_property_read_u32(bl, "su1-max-uA", &pdata->su1_max_uA);
279 if (pdata->su1_max_uA <= 0)
280 ret = -EINVAL;
281 if (ret < 0)
282 goto err_put_bl;
283 }
284
285 fb = of_parse_phandle(bl, "su2-dev", 0);
286 if (fb) {
287 int count = 0;
288
289 pdata->su2_fb = fb->full_name;
289 of_node_put(fb);
290
290
291 pdata->su2_fb = true;
292
291 ret = of_property_read_u32(bl, "su2-max-uA", &pdata->su2_max_uA);
292 if (pdata->su2_max_uA <= 0)
293 ret = -EINVAL;
294 if (ret < 0)
295 goto err_put_bl;
296
297 if (of_find_property(bl, "su2-feedback-voltage", NULL)) {
298 pdata->su2_feedback = AS3711_SU2_VOLTAGE;

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420 if (!supply)
421 return -ENOMEM;
422
423 supply->as3711 = as3711;
424 supply->pdata = pdata;
425
426 if (pdata->su1_fb) {
427 su = &supply->su1;
293 ret = of_property_read_u32(bl, "su2-max-uA", &pdata->su2_max_uA);
294 if (pdata->su2_max_uA <= 0)
295 ret = -EINVAL;
296 if (ret < 0)
297 goto err_put_bl;
298
299 if (of_find_property(bl, "su2-feedback-voltage", NULL)) {
300 pdata->su2_feedback = AS3711_SU2_VOLTAGE;

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422 if (!supply)
423 return -ENOMEM;
424
425 supply->as3711 = as3711;
426 supply->pdata = pdata;
427
428 if (pdata->su1_fb) {
429 su = &supply->su1;
428 su->fb_name = pdata->su1_fb;
429 su->type = AS3711_BL_SU1;
430
431 max_brightness = min(pdata->su1_max_uA, 31);
432 ret = as3711_bl_register(pdev, max_brightness, su);
433 if (ret < 0)
434 return ret;
435 }
436
437 if (pdata->su2_fb) {
438 su = &supply->su2;
430 su->type = AS3711_BL_SU1;
431
432 max_brightness = min(pdata->su1_max_uA, 31);
433 ret = as3711_bl_register(pdev, max_brightness, su);
434 if (ret < 0)
435 return ret;
436 }
437
438 if (pdata->su2_fb) {
439 su = &supply->su2;
439 su->fb_name = pdata->su2_fb;
440 su->type = AS3711_BL_SU2;
441
442 switch (pdata->su2_fbprot) {
443 case AS3711_SU2_GPIO2:
444 case AS3711_SU2_GPIO3:
445 case AS3711_SU2_GPIO4:
446 case AS3711_SU2_LX_SD4:
447 break;

--- 45 unchanged lines hidden --- 		440 su->type = AS3711_BL_SU2;
441
442 switch (pdata->su2_fbprot) {
443 case AS3711_SU2_GPIO2:
444 case AS3711_SU2_GPIO3:
445 case AS3711_SU2_GPIO4:
446 case AS3711_SU2_LX_SD4:
447 break;

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