87 static inline void s3c_adc_convert(struct adc_device *adc)  in s3c_adc_convert()  argument
89 	unsigned con = readl(adc->regs + S3C2410_ADCCON);  in s3c_adc_convert()
92 	writel(con, adc->regs + S3C2410_ADCCON);  in s3c_adc_convert()
95 static inline void s3c_adc_select(struct adc_device *adc,  in s3c_adc_select()  argument
98 	unsigned con = readl(adc->regs + S3C2410_ADCCON);  in s3c_adc_select()
99 	enum s3c_cpu_type cpu = platform_get_device_id(adc->pdev)->driver_data;  in s3c_adc_select()
110 			writel(client->channel & 0xf, adc->regs + S5P_ADCMUX);  in s3c_adc_select()
113 						adc->regs + S3C2443_ADCMUX);  in s3c_adc_select()
118 	writel(con, adc->regs + S3C2410_ADCCON);  in s3c_adc_select()
121 static void s3c_adc_dbgshow(struct adc_device *adc)  in s3c_adc_dbgshow()  argument
123 	adc_dbg(adc, "CON=%08x, TSC=%08x, DLY=%08x\n",  in s3c_adc_dbgshow()
124 		readl(adc->regs + S3C2410_ADCCON),  in s3c_adc_dbgshow()
125 		readl(adc->regs + S3C2410_ADCTSC),  in s3c_adc_dbgshow()
126 		readl(adc->regs + S3C2410_ADCDLY));  in s3c_adc_dbgshow()
129 static void s3c_adc_try(struct adc_device *adc)  in s3c_adc_try()  argument
131 	struct s3c_adc_client *next = adc->ts_pend;  in s3c_adc_try()
138 		adc->ts_pend = NULL;  in s3c_adc_try()
141 		adc_dbg(adc, "new client is %p\n", next);  in s3c_adc_try()
142 		adc->cur = next;  in s3c_adc_try()
143 		s3c_adc_select(adc, next);  in s3c_adc_try()
144 		s3c_adc_convert(adc);  in s3c_adc_try()
145 		s3c_adc_dbgshow(adc);  in s3c_adc_try()
152 	struct adc_device *adc = adc_dev;  in s3c_adc_start()  local
155 	if (!adc) {  in s3c_adc_start()
160 	spin_lock_irqsave(&adc->lock, flags);  in s3c_adc_start()
162 	if (client->is_ts && adc->ts_pend) {  in s3c_adc_start()
163 		spin_unlock_irqrestore(&adc->lock, flags);  in s3c_adc_start()
171 		adc->ts_pend = client;  in s3c_adc_start()
175 	if (!adc->cur)  in s3c_adc_start()
176 		s3c_adc_try(adc);  in s3c_adc_start()
178 	spin_unlock_irqrestore(&adc->lock, flags);  in s3c_adc_start()
288 	struct adc_device *adc = pw;  in s3c_adc_irq()  local
289 	struct s3c_adc_client *client = adc->cur;  in s3c_adc_irq()
290 	enum s3c_cpu_type cpu = platform_get_device_id(adc->pdev)->driver_data;  in s3c_adc_irq()
294 		dev_warn(&adc->pdev->dev, "%s: no adc pending\n", __func__);  in s3c_adc_irq()
298 	data0 = readl(adc->regs + S3C2410_ADCDAT0);  in s3c_adc_irq()
299 	data1 = readl(adc->regs + S3C2410_ADCDAT1);  in s3c_adc_irq()
300 	adc_dbg(adc, "read %d: 0x%04x, 0x%04x\n", client->nr_samples, data0, data1);  in s3c_adc_irq()
320 		s3c_adc_convert(adc);  in s3c_adc_irq()
322 		spin_lock(&adc->lock);  in s3c_adc_irq()
324 		adc->cur = NULL;  in s3c_adc_irq()
326 		s3c_adc_try(adc);  in s3c_adc_irq()
327 		spin_unlock(&adc->lock);  in s3c_adc_irq()
333 		writel(0, adc->regs + S3C64XX_ADCCLRINT);  in s3c_adc_irq()
341 	struct adc_device *adc;  in s3c_adc_probe()  local
347 	adc = devm_kzalloc(dev, sizeof(struct adc_device), GFP_KERNEL);  in s3c_adc_probe()
348 	if (adc == NULL) {  in s3c_adc_probe()
353 	spin_lock_init(&adc->lock);  in s3c_adc_probe()
355 	adc->pdev = pdev;  in s3c_adc_probe()
356 	adc->prescale = S3C2410_ADCCON_PRSCVL(49);  in s3c_adc_probe()
358 	adc->vdd = devm_regulator_get(dev, "vdd");  in s3c_adc_probe()
359 	if (IS_ERR(adc->vdd)) {  in s3c_adc_probe()
361 		return PTR_ERR(adc->vdd);  in s3c_adc_probe()
364 	adc->irq = platform_get_irq(pdev, 1);  in s3c_adc_probe()
365 	if (adc->irq <= 0) {  in s3c_adc_probe()
370 	ret = devm_request_irq(dev, adc->irq, s3c_adc_irq, 0, dev_name(dev),  in s3c_adc_probe()
371 				adc);  in s3c_adc_probe()
377 	adc->clk = devm_clk_get(dev, "adc");  in s3c_adc_probe()
378 	if (IS_ERR(adc->clk)) {  in s3c_adc_probe()
380 		return PTR_ERR(adc->clk);  in s3c_adc_probe()
384 	adc->regs = devm_ioremap_resource(dev, regs);  in s3c_adc_probe()
385 	if (IS_ERR(adc->regs))  in s3c_adc_probe()
386 		return PTR_ERR(adc->regs);  in s3c_adc_probe()
388 	ret = regulator_enable(adc->vdd);  in s3c_adc_probe()
392 	clk_prepare_enable(adc->clk);  in s3c_adc_probe()
394 	tmp = adc->prescale | S3C2410_ADCCON_PRSCEN;  in s3c_adc_probe()
402 	writel(tmp, adc->regs + S3C2410_ADCCON);  in s3c_adc_probe()
406 	platform_set_drvdata(pdev, adc);  in s3c_adc_probe()
407 	adc_dev = adc;  in s3c_adc_probe()
414 	struct adc_device *adc = platform_get_drvdata(pdev);  in s3c_adc_remove()  local
416 	clk_disable_unprepare(adc->clk);  in s3c_adc_remove()
417 	regulator_disable(adc->vdd);  in s3c_adc_remove()
427 	struct adc_device *adc = platform_get_drvdata(pdev);  in s3c_adc_suspend()  local
431 	spin_lock_irqsave(&adc->lock, flags);  in s3c_adc_suspend()
433 	con = readl(adc->regs + S3C2410_ADCCON);  in s3c_adc_suspend()
435 	writel(con, adc->regs + S3C2410_ADCCON);  in s3c_adc_suspend()
437 	disable_irq(adc->irq);  in s3c_adc_suspend()
438 	spin_unlock_irqrestore(&adc->lock, flags);  in s3c_adc_suspend()
439 	clk_disable(adc->clk);  in s3c_adc_suspend()
440 	regulator_disable(adc->vdd);  in s3c_adc_suspend()
449 	struct adc_device *adc = platform_get_drvdata(pdev);  in s3c_adc_resume()  local
454 	ret = regulator_enable(adc->vdd);  in s3c_adc_resume()
457 	clk_enable(adc->clk);  in s3c_adc_resume()
458 	enable_irq(adc->irq);  in s3c_adc_resume()
460 	tmp = adc->prescale | S3C2410_ADCCON_PRSCEN;  in s3c_adc_resume()
468 	writel(tmp, adc->regs + S3C2410_ADCCON);  in s3c_adc_resume()