150 	void (*init_hw)(struct exynos_adc *info);
151 	void (*exit_hw)(struct exynos_adc *info);
152 	void (*clear_irq)(struct exynos_adc *info);
153 	void (*start_conv)(struct exynos_adc *info, unsigned long addr);
156 static void exynos_adc_unprepare_clk(struct exynos_adc *info)  in exynos_adc_unprepare_clk()  argument
158 	if (info->data->needs_sclk)  in exynos_adc_unprepare_clk()
159 		clk_unprepare(info->sclk);  in exynos_adc_unprepare_clk()
160 	clk_unprepare(info->clk);  in exynos_adc_unprepare_clk()
163 static int exynos_adc_prepare_clk(struct exynos_adc *info)  in exynos_adc_prepare_clk()  argument
167 	ret = clk_prepare(info->clk);  in exynos_adc_prepare_clk()
169 		dev_err(info->dev, "failed preparing adc clock: %d\n", ret);  in exynos_adc_prepare_clk()
173 	if (info->data->needs_sclk) {  in exynos_adc_prepare_clk()
174 		ret = clk_prepare(info->sclk);  in exynos_adc_prepare_clk()
176 			clk_unprepare(info->clk);  in exynos_adc_prepare_clk()
177 			dev_err(info->dev,  in exynos_adc_prepare_clk()
186 static void exynos_adc_disable_clk(struct exynos_adc *info)  in exynos_adc_disable_clk()  argument
188 	if (info->data->needs_sclk)  in exynos_adc_disable_clk()
189 		clk_disable(info->sclk);  in exynos_adc_disable_clk()
190 	clk_disable(info->clk);  in exynos_adc_disable_clk()
193 static int exynos_adc_enable_clk(struct exynos_adc *info)  in exynos_adc_enable_clk()  argument
197 	ret = clk_enable(info->clk);  in exynos_adc_enable_clk()
199 		dev_err(info->dev, "failed enabling adc clock: %d\n", ret);  in exynos_adc_enable_clk()
203 	if (info->data->needs_sclk) {  in exynos_adc_enable_clk()
204 		ret = clk_enable(info->sclk);  in exynos_adc_enable_clk()
206 			clk_disable(info->clk);  in exynos_adc_enable_clk()
207 			dev_err(info->dev,  in exynos_adc_enable_clk()
216 static void exynos_adc_v1_init_hw(struct exynos_adc *info)  in exynos_adc_v1_init_hw()  argument
220 	if (info->data->needs_adc_phy)  in exynos_adc_v1_init_hw()
221 		regmap_write(info->pmu_map, info->data->phy_offset, 1);  in exynos_adc_v1_init_hw()
228 	writel(con1, ADC_V1_CON(info->regs));  in exynos_adc_v1_init_hw()
231 	writel(info->delay, ADC_V1_DLY(info->regs));  in exynos_adc_v1_init_hw()
234 static void exynos_adc_v1_exit_hw(struct exynos_adc *info)  in exynos_adc_v1_exit_hw()  argument
238 	if (info->data->needs_adc_phy)  in exynos_adc_v1_exit_hw()
239 		regmap_write(info->pmu_map, info->data->phy_offset, 0);  in exynos_adc_v1_exit_hw()
241 	con = readl(ADC_V1_CON(info->regs));  in exynos_adc_v1_exit_hw()
243 	writel(con, ADC_V1_CON(info->regs));  in exynos_adc_v1_exit_hw()
246 static void exynos_adc_v1_clear_irq(struct exynos_adc *info)  in exynos_adc_v1_clear_irq()  argument
248 	writel(1, ADC_V1_INTCLR(info->regs));  in exynos_adc_v1_clear_irq()
251 static void exynos_adc_v1_start_conv(struct exynos_adc *info,  in exynos_adc_v1_start_conv()  argument
256 	writel(addr, ADC_V1_MUX(info->regs));  in exynos_adc_v1_start_conv()
258 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_v1_start_conv()
259 	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));  in exynos_adc_v1_start_conv()
297 static void exynos_adc_s3c2416_start_conv(struct exynos_adc *info,  in exynos_adc_s3c2416_start_conv()  argument
303 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_s3c2416_start_conv()
305 	writel(con1, ADC_V1_CON(info->regs));  in exynos_adc_s3c2416_start_conv()
308 	writel(addr, ADC_S3C2410_MUX(info->regs));  in exynos_adc_s3c2416_start_conv()
310 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_s3c2416_start_conv()
311 	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));  in exynos_adc_s3c2416_start_conv()
323 static void exynos_adc_s3c2443_start_conv(struct exynos_adc *info,  in exynos_adc_s3c2443_start_conv()  argument
329 	writel(addr, ADC_S3C2410_MUX(info->regs));  in exynos_adc_s3c2443_start_conv()
331 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_s3c2443_start_conv()
332 	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));  in exynos_adc_s3c2443_start_conv()
344 static void exynos_adc_s3c64xx_start_conv(struct exynos_adc *info,  in exynos_adc_s3c64xx_start_conv()  argument
349 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_s3c64xx_start_conv()
352 	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));  in exynos_adc_s3c64xx_start_conv()
374 static void exynos_adc_v2_init_hw(struct exynos_adc *info)  in exynos_adc_v2_init_hw()  argument
378 	if (info->data->needs_adc_phy)  in exynos_adc_v2_init_hw()
379 		regmap_write(info->pmu_map, info->data->phy_offset, 1);  in exynos_adc_v2_init_hw()
382 	writel(con1, ADC_V2_CON1(info->regs));  in exynos_adc_v2_init_hw()
386 	writel(con2, ADC_V2_CON2(info->regs));  in exynos_adc_v2_init_hw()
389 	writel(1, ADC_V2_INT_EN(info->regs));  in exynos_adc_v2_init_hw()
392 static void exynos_adc_v2_exit_hw(struct exynos_adc *info)  in exynos_adc_v2_exit_hw()  argument
396 	if (info->data->needs_adc_phy)  in exynos_adc_v2_exit_hw()
397 		regmap_write(info->pmu_map, info->data->phy_offset, 0);  in exynos_adc_v2_exit_hw()
399 	con = readl(ADC_V2_CON1(info->regs));  in exynos_adc_v2_exit_hw()
401 	writel(con, ADC_V2_CON1(info->regs));  in exynos_adc_v2_exit_hw()
404 static void exynos_adc_v2_clear_irq(struct exynos_adc *info)  in exynos_adc_v2_clear_irq()  argument
406 	writel(1, ADC_V2_INT_ST(info->regs));  in exynos_adc_v2_clear_irq()
409 static void exynos_adc_v2_start_conv(struct exynos_adc *info,  in exynos_adc_v2_start_conv()  argument
414 	con2 = readl(ADC_V2_CON2(info->regs));  in exynos_adc_v2_start_conv()
417 	writel(con2, ADC_V2_CON2(info->regs));  in exynos_adc_v2_start_conv()
419 	con1 = readl(ADC_V2_CON1(info->regs));  in exynos_adc_v2_start_conv()
420 	writel(con1 | ADC_CON_EN_START, ADC_V2_CON1(info->regs));  in exynos_adc_v2_start_conv()
448 static void exynos_adc_exynos7_init_hw(struct exynos_adc *info)  in exynos_adc_exynos7_init_hw()  argument
452 	if (info->data->needs_adc_phy)  in exynos_adc_exynos7_init_hw()
453 		regmap_write(info->pmu_map, info->data->phy_offset, 1);  in exynos_adc_exynos7_init_hw()
456 	writel(con1, ADC_V2_CON1(info->regs));  in exynos_adc_exynos7_init_hw()
458 	con2 = readl(ADC_V2_CON2(info->regs));  in exynos_adc_exynos7_init_hw()
461 	writel(con2, ADC_V2_CON2(info->regs));  in exynos_adc_exynos7_init_hw()
464 	writel(1, ADC_V2_INT_EN(info->regs));  in exynos_adc_exynos7_init_hw()
530 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_read_raw()  local
538 	reinit_completion(&info->completion);  in exynos_read_raw()
541 	if (info->data->start_conv)  in exynos_read_raw()
542 		info->data->start_conv(info, chan->address);  in exynos_read_raw()
544 	timeout = wait_for_completion_timeout(&info->completion,  in exynos_read_raw()
548 		if (info->data->init_hw)  in exynos_read_raw()
549 			info->data->init_hw(info);  in exynos_read_raw()
552 		*val = info->value;  in exynos_read_raw()
564 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_read_s3c64xx_ts()  local
569 	info->read_ts = true;  in exynos_read_s3c64xx_ts()
571 	reinit_completion(&info->completion);  in exynos_read_s3c64xx_ts()
574 	       ADC_V1_TSC(info->regs));  in exynos_read_s3c64xx_ts()
577 	info->data->start_conv(info, ADC_S3C2410_MUX_TS);  in exynos_read_s3c64xx_ts()
579 	timeout = wait_for_completion_timeout(&info->completion,  in exynos_read_s3c64xx_ts()
583 		if (info->data->init_hw)  in exynos_read_s3c64xx_ts()
584 			info->data->init_hw(info);  in exynos_read_s3c64xx_ts()
587 		*x = info->ts_x;  in exynos_read_s3c64xx_ts()
588 		*y = info->ts_y;  in exynos_read_s3c64xx_ts()
592 	info->read_ts = false;  in exynos_read_s3c64xx_ts()
600 	struct exynos_adc *info = dev_id;  in exynos_adc_isr()  local
601 	u32 mask = info->data->mask;  in exynos_adc_isr()
604 	if (info->read_ts) {  in exynos_adc_isr()
605 		info->ts_x = readl(ADC_V1_DATX(info->regs));  in exynos_adc_isr()
606 		info->ts_y = readl(ADC_V1_DATY(info->regs));  in exynos_adc_isr()
607 		writel(ADC_TSC_WAIT4INT | ADC_S3C2443_TSC_UD_SEN, ADC_V1_TSC(info->regs));  in exynos_adc_isr()
609 		info->value = readl(ADC_V1_DATX(info->regs)) & mask;  in exynos_adc_isr()
613 	if (info->data->clear_irq)  in exynos_adc_isr()
614 		info->data->clear_irq(info);  in exynos_adc_isr()
616 	complete(&info->completion);  in exynos_adc_isr()
630 	struct exynos_adc *info = dev_id;  in exynos_ts_isr()  local
631 	struct iio_dev *dev = dev_get_drvdata(info->dev);  in exynos_ts_isr()
636 	while (info->input->users) {  in exynos_ts_isr()
643 			input_report_key(info->input, BTN_TOUCH, 0);  in exynos_ts_isr()
644 			input_sync(info->input);  in exynos_ts_isr()
648 		input_report_abs(info->input, ABS_X, x & ADC_DATX_MASK);  in exynos_ts_isr()
649 		input_report_abs(info->input, ABS_Y, y & ADC_DATY_MASK);  in exynos_ts_isr()
650 		input_report_key(info->input, BTN_TOUCH, 1);  in exynos_ts_isr()
651 		input_sync(info->input);  in exynos_ts_isr()
656 	writel(0, ADC_V1_CLRINTPNDNUP(info->regs));  in exynos_ts_isr()
665 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_adc_reg_access()  local
670 	*readval = readl(info->regs + reg);  in exynos_adc_reg_access()
713 	struct exynos_adc *info = input_get_drvdata(dev);  in exynos_adc_ts_open()  local
715 	enable_irq(info->tsirq);  in exynos_adc_ts_open()
722 	struct exynos_adc *info = input_get_drvdata(dev);  in exynos_adc_ts_close()  local
724 	disable_irq(info->tsirq);  in exynos_adc_ts_close()
727 static int exynos_adc_ts_init(struct exynos_adc *info)  in exynos_adc_ts_init()  argument
731 	if (info->tsirq <= 0)  in exynos_adc_ts_init()
734 	info->input = input_allocate_device();  in exynos_adc_ts_init()
735 	if (!info->input)  in exynos_adc_ts_init()
738 	info->input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);  in exynos_adc_ts_init()
739 	info->input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);  in exynos_adc_ts_init()
741 	input_set_abs_params(info->input, ABS_X, 0, 0x3FF, 0, 0);  in exynos_adc_ts_init()
742 	input_set_abs_params(info->input, ABS_Y, 0, 0x3FF, 0, 0);  in exynos_adc_ts_init()
744 	info->input->name = "S3C24xx TouchScreen";  in exynos_adc_ts_init()
745 	info->input->id.bustype = BUS_HOST;  in exynos_adc_ts_init()
746 	info->input->open = exynos_adc_ts_open;  in exynos_adc_ts_init()
747 	info->input->close = exynos_adc_ts_close;  in exynos_adc_ts_init()
749 	input_set_drvdata(info->input, info);  in exynos_adc_ts_init()
751 	ret = input_register_device(info->input);  in exynos_adc_ts_init()
753 		input_free_device(info->input);  in exynos_adc_ts_init()
757 	disable_irq(info->tsirq);  in exynos_adc_ts_init()
758 	ret = request_threaded_irq(info->tsirq, NULL, exynos_ts_isr,  in exynos_adc_ts_init()
759 				   IRQF_ONESHOT, "touchscreen", info);  in exynos_adc_ts_init()
761 		input_unregister_device(info->input);  in exynos_adc_ts_init()
768 	struct exynos_adc *info = NULL;  in exynos_adc_probe()  local
783 	info = iio_priv(indio_dev);  in exynos_adc_probe()
785 	info->data = exynos_adc_get_data(pdev);  in exynos_adc_probe()
786 	if (!info->data) {  in exynos_adc_probe()
792 	info->regs = devm_ioremap_resource(&pdev->dev, mem);  in exynos_adc_probe()
793 	if (IS_ERR(info->regs))  in exynos_adc_probe()
794 		return PTR_ERR(info->regs);  in exynos_adc_probe()
797 	if (info->data->needs_adc_phy) {  in exynos_adc_probe()
798 		info->pmu_map = syscon_regmap_lookup_by_phandle(  in exynos_adc_probe()
801 		if (IS_ERR(info->pmu_map)) {  in exynos_adc_probe()
803 			return PTR_ERR(info->pmu_map);  in exynos_adc_probe()
810 	info->irq = irq;  in exynos_adc_probe()
816 	info->tsirq = irq;  in exynos_adc_probe()
818 	info->dev = &pdev->dev;  in exynos_adc_probe()
820 	init_completion(&info->completion);  in exynos_adc_probe()
822 	info->clk = devm_clk_get(&pdev->dev, "adc");  in exynos_adc_probe()
823 	if (IS_ERR(info->clk)) {  in exynos_adc_probe()
825 							PTR_ERR(info->clk));  in exynos_adc_probe()
826 		return PTR_ERR(info->clk);  in exynos_adc_probe()
829 	if (info->data->needs_sclk) {  in exynos_adc_probe()
830 		info->sclk = devm_clk_get(&pdev->dev, "sclk");  in exynos_adc_probe()
831 		if (IS_ERR(info->sclk)) {  in exynos_adc_probe()
834 				PTR_ERR(info->sclk));  in exynos_adc_probe()
835 			return PTR_ERR(info->sclk);  in exynos_adc_probe()
839 	info->vdd = devm_regulator_get(&pdev->dev, "vdd");  in exynos_adc_probe()
840 	if (IS_ERR(info->vdd)) {  in exynos_adc_probe()
842 							PTR_ERR(info->vdd));  in exynos_adc_probe()
843 		return PTR_ERR(info->vdd);  in exynos_adc_probe()
846 	ret = regulator_enable(info->vdd);  in exynos_adc_probe()
850 	ret = exynos_adc_prepare_clk(info);  in exynos_adc_probe()
854 	ret = exynos_adc_enable_clk(info);  in exynos_adc_probe()
863 	indio_dev->info = &exynos_adc_iio_info;  in exynos_adc_probe()
866 	indio_dev->num_channels = info->data->num_channels;  in exynos_adc_probe()
868 	ret = request_irq(info->irq, exynos_adc_isr,  in exynos_adc_probe()
869 					0, dev_name(&pdev->dev), info);  in exynos_adc_probe()
872 							info->irq);  in exynos_adc_probe()
880 	if (info->data->init_hw)  in exynos_adc_probe()
881 		info->data->init_hw(info);  in exynos_adc_probe()
890 		info->delay = pdata->delay;  in exynos_adc_probe()
892 		info->delay = 10000;  in exynos_adc_probe()
895 		ret = exynos_adc_ts_init(info);  in exynos_adc_probe()
911 		input_unregister_device(info->input);  in exynos_adc_probe()
912 		free_irq(info->tsirq, info);  in exynos_adc_probe()
917 	free_irq(info->irq, info);  in exynos_adc_probe()
919 	if (info->data->exit_hw)  in exynos_adc_probe()
920 		info->data->exit_hw(info);  in exynos_adc_probe()
921 	exynos_adc_disable_clk(info);  in exynos_adc_probe()
923 	exynos_adc_unprepare_clk(info);  in exynos_adc_probe()
925 	regulator_disable(info->vdd);  in exynos_adc_probe()
932 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_adc_remove()  local
934 	if (IS_REACHABLE(CONFIG_INPUT) && info->input) {  in exynos_adc_remove()
935 		free_irq(info->tsirq, info);  in exynos_adc_remove()
936 		input_unregister_device(info->input);  in exynos_adc_remove()
941 	free_irq(info->irq, info);  in exynos_adc_remove()
942 	if (info->data->exit_hw)  in exynos_adc_remove()
943 		info->data->exit_hw(info);  in exynos_adc_remove()
944 	exynos_adc_disable_clk(info);  in exynos_adc_remove()
945 	exynos_adc_unprepare_clk(info);  in exynos_adc_remove()
946 	regulator_disable(info->vdd);  in exynos_adc_remove()
955 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_adc_suspend()  local
957 	if (info->data->exit_hw)  in exynos_adc_suspend()
958 		info->data->exit_hw(info);  in exynos_adc_suspend()
959 	exynos_adc_disable_clk(info);  in exynos_adc_suspend()
960 	regulator_disable(info->vdd);  in exynos_adc_suspend()
968 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_adc_resume()  local
971 	ret = regulator_enable(info->vdd);  in exynos_adc_resume()
975 	ret = exynos_adc_enable_clk(info);  in exynos_adc_resume()
979 	if (info->data->init_hw)  in exynos_adc_resume()
980 		info->data->init_hw(info);  in exynos_adc_resume()