Lines Matching refs:tscadc

37 void am335x_tsc_se_set_cache(struct ti_tscadc_dev *tscadc, u32 val)
41 	spin_lock_irqsave(&tscadc->reg_lock, flags);
42 	tscadc->reg_se_cache |= val;
43 	if (tscadc->adc_waiting)
44 		wake_up(&tscadc->reg_se_wait);
45 	else if (!tscadc->adc_in_use)
46 		regmap_write(tscadc->regmap, REG_SE, tscadc->reg_se_cache);
48 	spin_unlock_irqrestore(&tscadc->reg_lock, flags);
52 static void am335x_tscadc_need_adc(struct ti_tscadc_dev *tscadc)
57 	regmap_read(tscadc->regmap, REG_ADCFSM, &reg);
59 		tscadc->adc_waiting = true;
60 		prepare_to_wait(&tscadc->reg_se_wait, &wait,
62 		spin_unlock_irq(&tscadc->reg_lock);
66 		spin_lock_irq(&tscadc->reg_lock);
67 		finish_wait(&tscadc->reg_se_wait, &wait);
73 		regmap_read(tscadc->regmap, REG_ADCFSM, &reg);
75 		tscadc->adc_waiting = false;
77 	tscadc->adc_in_use = true;
80 void am335x_tsc_se_set_once(struct ti_tscadc_dev *tscadc, u32 val)
82 	spin_lock_irq(&tscadc->reg_lock);
83 	am335x_tscadc_need_adc(tscadc);
85 	regmap_write(tscadc->regmap, REG_SE, val);
86 	spin_unlock_irq(&tscadc->reg_lock);
90 void am335x_tsc_se_adc_done(struct ti_tscadc_dev *tscadc)
94 	spin_lock_irqsave(&tscadc->reg_lock, flags);
95 	tscadc->adc_in_use = false;
96 	regmap_write(tscadc->regmap, REG_SE, tscadc->reg_se_cache);
97 	spin_unlock_irqrestore(&tscadc->reg_lock, flags);
101 void am335x_tsc_se_clr(struct ti_tscadc_dev *tscadc, u32 val)
105 	spin_lock_irqsave(&tscadc->reg_lock, flags);
106 	tscadc->reg_se_cache &= ~val;
107 	regmap_write(tscadc->regmap, REG_SE, tscadc->reg_se_cache);
108 	spin_unlock_irqrestore(&tscadc->reg_lock, flags);
112 static void tscadc_idle_config(struct ti_tscadc_dev *tscadc)
119 	regmap_write(tscadc->regmap, REG_IDLECONFIG, idleconfig);
124 	struct ti_tscadc_dev	*tscadc;
171 	tscadc = devm_kzalloc(&pdev->dev, sizeof(*tscadc), GFP_KERNEL);
172 	if (!tscadc)
175 	tscadc->dev = &pdev->dev;
182 		tscadc->irq = err;
185 	tscadc->tscadc_base = devm_ioremap_resource(&pdev->dev, res);
186 	if (IS_ERR(tscadc->tscadc_base))
187 		return PTR_ERR(tscadc->tscadc_base);
189 	tscadc->tscadc_phys_base = res->start;
190 	tscadc->regmap = devm_regmap_init_mmio(&pdev->dev,
191 			tscadc->tscadc_base, &tscadc_regmap_config);
192 	if (IS_ERR(tscadc->regmap)) {
194 		err = PTR_ERR(tscadc->regmap);
198 	spin_lock_init(&tscadc->reg_lock);
199 	init_waitqueue_head(&tscadc->reg_se_wait);
219 	tscadc->clk_div = clock_rate / ADC_CLK;
222 	tscadc->clk_div--;
223 	regmap_write(tscadc->regmap, REG_CLKDIV, tscadc->clk_div);
227 	regmap_write(tscadc->regmap, REG_CTRL, ctrl);
231 		tscadc->tsc_wires = tsc_wires;
236 		tscadc_idle_config(tscadc);
241 	regmap_write(tscadc->regmap, REG_CTRL, ctrl);
243 	tscadc->used_cells = 0;
244 	tscadc->tsc_cell = -1;
245 	tscadc->adc_cell = -1;
249 		tscadc->tsc_cell = tscadc->used_cells;
250 		cell = &tscadc->cells[tscadc->used_cells++];
253 		cell->platform_data = &tscadc;
254 		cell->pdata_size = sizeof(tscadc);
259 		tscadc->adc_cell = tscadc->used_cells;
260 		cell = &tscadc->cells[tscadc->used_cells++];
263 		cell->platform_data = &tscadc;
264 		cell->pdata_size = sizeof(tscadc);
268 			      tscadc->cells, tscadc->used_cells, NULL,
273 	platform_set_drvdata(pdev, tscadc);
285 	struct ti_tscadc_dev	*tscadc = platform_get_drvdata(pdev);
287 	regmap_write(tscadc->regmap, REG_SE, 0x00);
292 	mfd_remove_devices(tscadc->dev);
304 	struct ti_tscadc_dev	*tscadc = dev_get_drvdata(dev);
306 	regmap_write(tscadc->regmap, REG_SE, 0x00);
310 		regmap_read(tscadc->regmap, REG_CTRL, &ctrl);
313 		regmap_write(tscadc->regmap, REG_CTRL, ctrl);
322 	struct ti_tscadc_dev	*tscadc = dev_get_drvdata(dev);
329 	regmap_write(tscadc->regmap, REG_CTRL, ctrl);
331 	if (tscadc->tsc_cell != -1) {
332 		if (tscadc->tsc_wires == 5)
336 		tscadc_idle_config(tscadc);
339 	regmap_write(tscadc->regmap, REG_CTRL, ctrl);
341 	regmap_write(tscadc->regmap, REG_CLKDIV, tscadc->clk_div);
349 	{ .compatible = "ti,am3359-tscadc", },
356 		.name   = "ti_am3359-tscadc",