83 static inline void s3c_adc_convert(struct adc_device *adc)  in s3c_adc_convert()  argument
85 	unsigned con = readl(adc->regs + S3C2410_ADCCON);  in s3c_adc_convert()
88 	writel(con, adc->regs + S3C2410_ADCCON);  in s3c_adc_convert()
91 static inline void s3c_adc_select(struct adc_device *adc,  in s3c_adc_select()  argument
94 	unsigned con = readl(adc->regs + S3C2410_ADCCON);  in s3c_adc_select()
95 	enum s3c_cpu_type cpu = platform_get_device_id(adc->pdev)->driver_data;  in s3c_adc_select()
106 			writel(client->channel & 0xf, adc->regs + S5P_ADCMUX);  in s3c_adc_select()
109 						adc->regs + S3C2443_ADCMUX);  in s3c_adc_select()
114 	writel(con, adc->regs + S3C2410_ADCCON);  in s3c_adc_select()
117 static void s3c_adc_dbgshow(struct adc_device *adc)  in s3c_adc_dbgshow()  argument
119 	adc_dbg(adc, "CON=%08x, TSC=%08x, DLY=%08x\n",  in s3c_adc_dbgshow()
120 		readl(adc->regs + S3C2410_ADCCON),  in s3c_adc_dbgshow()
121 		readl(adc->regs + S3C2410_ADCTSC),  in s3c_adc_dbgshow()
122 		readl(adc->regs + S3C2410_ADCDLY));  in s3c_adc_dbgshow()
125 static void s3c_adc_try(struct adc_device *adc)  in s3c_adc_try()  argument
127 	struct s3c_adc_client *next = adc->ts_pend;  in s3c_adc_try()
134 		adc->ts_pend = NULL;  in s3c_adc_try()
137 		adc_dbg(adc, "new client is %p\n", next);  in s3c_adc_try()
138 		adc->cur = next;  in s3c_adc_try()
139 		s3c_adc_select(adc, next);  in s3c_adc_try()
140 		s3c_adc_convert(adc);  in s3c_adc_try()
141 		s3c_adc_dbgshow(adc);  in s3c_adc_try()
148 	struct adc_device *adc = adc_dev;  in s3c_adc_start()  local
151 	if (!adc) {  in s3c_adc_start()
156 	spin_lock_irqsave(&adc->lock, flags);  in s3c_adc_start()
158 	if (client->is_ts && adc->ts_pend) {  in s3c_adc_start()
159 		spin_unlock_irqrestore(&adc->lock, flags);  in s3c_adc_start()
167 		adc->ts_pend = client;  in s3c_adc_start()
171 	if (!adc->cur)  in s3c_adc_start()
172 		s3c_adc_try(adc);  in s3c_adc_start()
174 	spin_unlock_irqrestore(&adc->lock, flags);  in s3c_adc_start()
282 	struct adc_device *adc = pw;  in s3c_adc_irq()  local
283 	struct s3c_adc_client *client = adc->cur;  in s3c_adc_irq()
284 	enum s3c_cpu_type cpu = platform_get_device_id(adc->pdev)->driver_data;  in s3c_adc_irq()
288 		dev_warn(&adc->pdev->dev, "%s: no adc pending\n", __func__);  in s3c_adc_irq()
292 	data0 = readl(adc->regs + S3C2410_ADCDAT0);  in s3c_adc_irq()
293 	data1 = readl(adc->regs + S3C2410_ADCDAT1);  in s3c_adc_irq()
294 	adc_dbg(adc, "read %d: 0x%04x, 0x%04x\n", client->nr_samples, data0, data1);  in s3c_adc_irq()
314 		s3c_adc_convert(adc);  in s3c_adc_irq()
316 		spin_lock(&adc->lock);  in s3c_adc_irq()
318 		adc->cur = NULL;  in s3c_adc_irq()
320 		s3c_adc_try(adc);  in s3c_adc_irq()
321 		spin_unlock(&adc->lock);  in s3c_adc_irq()
327 		writel(0, adc->regs + S3C64XX_ADCCLRINT);  in s3c_adc_irq()
335 	struct adc_device *adc;  in s3c_adc_probe()  local
340 	adc = devm_kzalloc(dev, sizeof(*adc), GFP_KERNEL);  in s3c_adc_probe()
341 	if (!adc)  in s3c_adc_probe()
344 	spin_lock_init(&adc->lock);  in s3c_adc_probe()
346 	adc->pdev = pdev;  in s3c_adc_probe()
347 	adc->prescale = S3C2410_ADCCON_PRSCVL(49);  in s3c_adc_probe()
349 	adc->vdd = devm_regulator_get(dev, "vdd");  in s3c_adc_probe()
350 	if (IS_ERR(adc->vdd)) {  in s3c_adc_probe()
352 		return PTR_ERR(adc->vdd);  in s3c_adc_probe()
355 	adc->irq = platform_get_irq(pdev, 1);  in s3c_adc_probe()
356 	if (adc->irq <= 0)  in s3c_adc_probe()
359 	ret = devm_request_irq(dev, adc->irq, s3c_adc_irq, 0, dev_name(dev),  in s3c_adc_probe()
360 				adc);  in s3c_adc_probe()
366 	adc->clk = devm_clk_get(dev, "adc");  in s3c_adc_probe()
367 	if (IS_ERR(adc->clk)) {  in s3c_adc_probe()
369 		return PTR_ERR(adc->clk);  in s3c_adc_probe()
372 	adc->regs = devm_platform_ioremap_resource(pdev, 0);  in s3c_adc_probe()
373 	if (IS_ERR(adc->regs))  in s3c_adc_probe()
374 		return PTR_ERR(adc->regs);  in s3c_adc_probe()
376 	ret = regulator_enable(adc->vdd);  in s3c_adc_probe()
380 	clk_prepare_enable(adc->clk);  in s3c_adc_probe()
382 	tmp = adc->prescale | S3C2410_ADCCON_PRSCEN;  in s3c_adc_probe()
390 	writel(tmp, adc->regs + S3C2410_ADCCON);  in s3c_adc_probe()
394 	platform_set_drvdata(pdev, adc);  in s3c_adc_probe()
395 	adc_dev = adc;  in s3c_adc_probe()
402 	struct adc_device *adc = platform_get_drvdata(pdev);  in s3c_adc_remove()  local
404 	clk_disable_unprepare(adc->clk);  in s3c_adc_remove()
405 	regulator_disable(adc->vdd);  in s3c_adc_remove()
413 	struct adc_device *adc = dev_get_drvdata(dev);  in s3c_adc_suspend()  local
417 	spin_lock_irqsave(&adc->lock, flags);  in s3c_adc_suspend()
419 	con = readl(adc->regs + S3C2410_ADCCON);  in s3c_adc_suspend()
421 	writel(con, adc->regs + S3C2410_ADCCON);  in s3c_adc_suspend()
423 	disable_irq(adc->irq);  in s3c_adc_suspend()
424 	spin_unlock_irqrestore(&adc->lock, flags);  in s3c_adc_suspend()
425 	clk_disable(adc->clk);  in s3c_adc_suspend()
426 	regulator_disable(adc->vdd);  in s3c_adc_suspend()
434 	struct adc_device *adc = platform_get_drvdata(pdev);  in s3c_adc_resume()  local
439 	ret = regulator_enable(adc->vdd);  in s3c_adc_resume()
442 	clk_enable(adc->clk);  in s3c_adc_resume()
443 	enable_irq(adc->irq);  in s3c_adc_resume()
445 	tmp = adc->prescale | S3C2410_ADCCON_PRSCEN;  in s3c_adc_resume()
453 	writel(tmp, adc->regs + S3C2410_ADCCON);  in s3c_adc_resume()