51 /* Per-'string' registers below */
92 	u16 val = bl->props.brightness;  in pm8941_wled_update_status()
97 	if (bl->props.power != FB_BLANK_UNBLANK ||  in pm8941_wled_update_status()
98 	    bl->props.fb_blank != FB_BLANK_UNBLANK ||  in pm8941_wled_update_status()
99 	    bl->props.state & BL_CORE_FBBLANK)  in pm8941_wled_update_status()
105 	rc = regmap_update_bits(wled->regmap,  in pm8941_wled_update_status()
106 			wled->addr + PM8941_WLED_REG_MOD_EN,  in pm8941_wled_update_status()
111 	for (i = 0; i < wled->cfg.num_strings; ++i) {  in pm8941_wled_update_status()
114 		rc = regmap_bulk_write(wled->regmap,  in pm8941_wled_update_status()
115 				wled->addr + PM8941_WLED_REG_VAL_BASE + 2 * i,  in pm8941_wled_update_status()
121 	rc = regmap_update_bits(wled->regmap,  in pm8941_wled_update_status()
122 			wled->addr + PM8941_WLED_REG_SYNC,  in pm8941_wled_update_status()
127 	rc = regmap_update_bits(wled->regmap,  in pm8941_wled_update_status()
128 			wled->addr + PM8941_WLED_REG_SYNC,  in pm8941_wled_update_status()
138 	rc = regmap_update_bits(wled->regmap,  in pm8941_wled_setup()
139 			wled->addr + PM8941_WLED_REG_OVP,  in pm8941_wled_setup()
140 			PM8941_WLED_REG_OVP_MASK, wled->cfg.ovp);  in pm8941_wled_setup()
144 	rc = regmap_update_bits(wled->regmap,  in pm8941_wled_setup()
145 			wled->addr + PM8941_WLED_REG_BOOST,  in pm8941_wled_setup()
146 			PM8941_WLED_REG_BOOST_MASK, wled->cfg.i_boost_limit);  in pm8941_wled_setup()
150 	rc = regmap_update_bits(wled->regmap,  in pm8941_wled_setup()
151 			wled->addr + PM8941_WLED_REG_FREQ,  in pm8941_wled_setup()
152 			PM8941_WLED_REG_FREQ_MASK, wled->cfg.switch_freq);  in pm8941_wled_setup()
156 	if (wled->cfg.cs_out_en) {  in pm8941_wled_setup()
157 		u8 all = (BIT(wled->cfg.num_strings) - 1)  in pm8941_wled_setup()
160 		rc = regmap_update_bits(wled->regmap,  in pm8941_wled_setup()
161 				wled->addr + PM8941_WLED_REG_SINK,  in pm8941_wled_setup()
167 	for (i = 0; i < wled->cfg.num_strings; ++i) {  in pm8941_wled_setup()
168 		u16 addr = wled->addr + PM8941_WLED_REG_STR_OFFSET * i;  in pm8941_wled_setup()
170 		rc = regmap_update_bits(wled->regmap,  in pm8941_wled_setup()
177 		if (wled->cfg.ext_gen) {  in pm8941_wled_setup()
178 			rc = regmap_update_bits(wled->regmap,  in pm8941_wled_setup()
186 		rc = regmap_update_bits(wled->regmap,  in pm8941_wled_setup()
189 				wled->cfg.i_limit);  in pm8941_wled_setup()
193 		rc = regmap_update_bits(wled->regmap,  in pm8941_wled_setup()
196 				wled->cfg.cabc_en ?  in pm8941_wled_setup()
266 	if (idx >= cfg->size)  in pm8941_wled_values()
268 	if (cfg->fn)  in pm8941_wled_values()
269 		return cfg->fn(idx);  in pm8941_wled_values()
270 	if (cfg->values)  in pm8941_wled_values()
271 		return cfg->values[idx];  in pm8941_wled_values()
277 	struct pm8941_wled_config *cfg = &wled->cfg;  in pm8941_wled_configure()
290 			"qcom,current-boost-limit",  in pm8941_wled_configure()
291 			&cfg->i_boost_limit,  in pm8941_wled_configure()
295 			"qcom,current-limit",  in pm8941_wled_configure()
296 			&cfg->i_limit,  in pm8941_wled_configure()
301 			&cfg->ovp,  in pm8941_wled_configure()
305 			"qcom,switching-freq",  in pm8941_wled_configure()
306 			&cfg->switch_freq,  in pm8941_wled_configure()
310 			"qcom,num-strings",  in pm8941_wled_configure()
311 			&cfg->num_strings,  in pm8941_wled_configure()
319 		{ "qcom,cs-out", &cfg->cs_out_en, },  in pm8941_wled_configure()
320 		{ "qcom,ext-gen", &cfg->ext_gen, },  in pm8941_wled_configure()
321 		{ "qcom,cabc", &cfg->cabc_en, },  in pm8941_wled_configure()
324 	rc = of_property_read_u32(dev->of_node, "reg", &val);  in pm8941_wled_configure()
327 		return rc ? rc : -EINVAL;  in pm8941_wled_configure()
329 	wled->addr = val;  in pm8941_wled_configure()
331 	rc = of_property_read_string(dev->of_node, "label", &wled->name);  in pm8941_wled_configure()
333 		wled->name = dev->of_node->name;  in pm8941_wled_configure()
337 		rc = of_property_read_u32(dev->of_node, u32_opts[i].name, &val);  in pm8941_wled_configure()
338 		if (rc == -EINVAL) {  in pm8941_wled_configure()
351 				return -EINVAL;  in pm8941_wled_configure()
360 		if (of_property_read_bool(dev->of_node, bool_opts[i].name))  in pm8941_wled_configure()
364 	cfg->num_strings = cfg->num_strings + 1;  in pm8941_wled_configure()
382 	regmap = dev_get_regmap(pdev->dev.parent, NULL);  in pm8941_wled_probe()
384 		dev_err(&pdev->dev, "Unable to get regmap\n");  in pm8941_wled_probe()
385 		return -EINVAL;  in pm8941_wled_probe()
388 	wled = devm_kzalloc(&pdev->dev, sizeof(*wled), GFP_KERNEL);  in pm8941_wled_probe()
390 		return -ENOMEM;  in pm8941_wled_probe()
392 	wled->regmap = regmap;  in pm8941_wled_probe()
394 	rc = pm8941_wled_configure(wled, &pdev->dev);  in pm8941_wled_probe()
403 	of_property_read_u32(pdev->dev.of_node, "default-brightness", &val);  in pm8941_wled_probe()
409 	bl = devm_backlight_device_register(&pdev->dev, wled->name,  in pm8941_wled_probe()
410 					    &pdev->dev, wled,  in pm8941_wled_probe()
416 	{ .compatible = "qcom,pm8941-wled" },
424 		.name = "pm8941-wled",