121 	void (*init_hw)(struct exynos_adc *info);
122 	void (*exit_hw)(struct exynos_adc *info);
123 	void (*clear_irq)(struct exynos_adc *info);
124 	void (*start_conv)(struct exynos_adc *info, unsigned long addr);
127 static void exynos_adc_unprepare_clk(struct exynos_adc *info)  in exynos_adc_unprepare_clk()  argument
129 	if (info->data->needs_sclk)  in exynos_adc_unprepare_clk()
130 		clk_unprepare(info->sclk);  in exynos_adc_unprepare_clk()
131 	clk_unprepare(info->clk);  in exynos_adc_unprepare_clk()
134 static int exynos_adc_prepare_clk(struct exynos_adc *info)  in exynos_adc_prepare_clk()  argument
138 	ret = clk_prepare(info->clk);  in exynos_adc_prepare_clk()
140 		dev_err(info->dev, "failed preparing adc clock: %d\n", ret);  in exynos_adc_prepare_clk()
144 	if (info->data->needs_sclk) {  in exynos_adc_prepare_clk()
145 		ret = clk_prepare(info->sclk);  in exynos_adc_prepare_clk()
147 			clk_unprepare(info->clk);  in exynos_adc_prepare_clk()
148 			dev_err(info->dev,  in exynos_adc_prepare_clk()
157 static void exynos_adc_disable_clk(struct exynos_adc *info)  in exynos_adc_disable_clk()  argument
159 	if (info->data->needs_sclk)  in exynos_adc_disable_clk()
160 		clk_disable(info->sclk);  in exynos_adc_disable_clk()
161 	clk_disable(info->clk);  in exynos_adc_disable_clk()
164 static int exynos_adc_enable_clk(struct exynos_adc *info)  in exynos_adc_enable_clk()  argument
168 	ret = clk_enable(info->clk);  in exynos_adc_enable_clk()
170 		dev_err(info->dev, "failed enabling adc clock: %d\n", ret);  in exynos_adc_enable_clk()
174 	if (info->data->needs_sclk) {  in exynos_adc_enable_clk()
175 		ret = clk_enable(info->sclk);  in exynos_adc_enable_clk()
177 			clk_disable(info->clk);  in exynos_adc_enable_clk()
178 			dev_err(info->dev,  in exynos_adc_enable_clk()
187 static void exynos_adc_v1_init_hw(struct exynos_adc *info)  in exynos_adc_v1_init_hw()  argument
191 	if (info->data->needs_adc_phy)  in exynos_adc_v1_init_hw()
192 		regmap_write(info->pmu_map, info->data->phy_offset, 1);  in exynos_adc_v1_init_hw()
199 	writel(con1, ADC_V1_CON(info->regs));  in exynos_adc_v1_init_hw()
202 static void exynos_adc_v1_exit_hw(struct exynos_adc *info)  in exynos_adc_v1_exit_hw()  argument
206 	if (info->data->needs_adc_phy)  in exynos_adc_v1_exit_hw()
207 		regmap_write(info->pmu_map, info->data->phy_offset, 0);  in exynos_adc_v1_exit_hw()
209 	con = readl(ADC_V1_CON(info->regs));  in exynos_adc_v1_exit_hw()
211 	writel(con, ADC_V1_CON(info->regs));  in exynos_adc_v1_exit_hw()
214 static void exynos_adc_v1_clear_irq(struct exynos_adc *info)  in exynos_adc_v1_clear_irq()  argument
216 	writel(1, ADC_V1_INTCLR(info->regs));  in exynos_adc_v1_clear_irq()
219 static void exynos_adc_v1_start_conv(struct exynos_adc *info,  in exynos_adc_v1_start_conv()  argument
224 	writel(addr, ADC_V1_MUX(info->regs));  in exynos_adc_v1_start_conv()
226 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_v1_start_conv()
227 	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));  in exynos_adc_v1_start_conv()
242 static void exynos_adc_s3c2416_start_conv(struct exynos_adc *info,  in exynos_adc_s3c2416_start_conv()  argument
248 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_s3c2416_start_conv()
250 	writel(con1, ADC_V1_CON(info->regs));  in exynos_adc_s3c2416_start_conv()
253 	writel(addr, ADC_S3C2410_MUX(info->regs));  in exynos_adc_s3c2416_start_conv()
255 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_s3c2416_start_conv()
256 	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));  in exynos_adc_s3c2416_start_conv()
268 static void exynos_adc_s3c2443_start_conv(struct exynos_adc *info,  in exynos_adc_s3c2443_start_conv()  argument
274 	writel(addr, ADC_S3C2410_MUX(info->regs));  in exynos_adc_s3c2443_start_conv()
276 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_s3c2443_start_conv()
277 	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));  in exynos_adc_s3c2443_start_conv()
289 static void exynos_adc_s3c64xx_start_conv(struct exynos_adc *info,  in exynos_adc_s3c64xx_start_conv()  argument
294 	con1 = readl(ADC_V1_CON(info->regs));  in exynos_adc_s3c64xx_start_conv()
297 	writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));  in exynos_adc_s3c64xx_start_conv()
319 static void exynos_adc_v2_init_hw(struct exynos_adc *info)  in exynos_adc_v2_init_hw()  argument
323 	if (info->data->needs_adc_phy)  in exynos_adc_v2_init_hw()
324 		regmap_write(info->pmu_map, info->data->phy_offset, 1);  in exynos_adc_v2_init_hw()
327 	writel(con1, ADC_V2_CON1(info->regs));  in exynos_adc_v2_init_hw()
331 	writel(con2, ADC_V2_CON2(info->regs));  in exynos_adc_v2_init_hw()
334 	writel(1, ADC_V2_INT_EN(info->regs));  in exynos_adc_v2_init_hw()
337 static void exynos_adc_v2_exit_hw(struct exynos_adc *info)  in exynos_adc_v2_exit_hw()  argument
341 	if (info->data->needs_adc_phy)  in exynos_adc_v2_exit_hw()
342 		regmap_write(info->pmu_map, info->data->phy_offset, 0);  in exynos_adc_v2_exit_hw()
344 	con = readl(ADC_V2_CON1(info->regs));  in exynos_adc_v2_exit_hw()
346 	writel(con, ADC_V2_CON1(info->regs));  in exynos_adc_v2_exit_hw()
349 static void exynos_adc_v2_clear_irq(struct exynos_adc *info)  in exynos_adc_v2_clear_irq()  argument
351 	writel(1, ADC_V2_INT_ST(info->regs));  in exynos_adc_v2_clear_irq()
354 static void exynos_adc_v2_start_conv(struct exynos_adc *info,  in exynos_adc_v2_start_conv()  argument
359 	con2 = readl(ADC_V2_CON2(info->regs));  in exynos_adc_v2_start_conv()
362 	writel(con2, ADC_V2_CON2(info->regs));  in exynos_adc_v2_start_conv()
364 	con1 = readl(ADC_V2_CON1(info->regs));  in exynos_adc_v2_start_conv()
365 	writel(con1 | ADC_CON_EN_START, ADC_V2_CON1(info->regs));  in exynos_adc_v2_start_conv()
393 static void exynos_adc_exynos7_init_hw(struct exynos_adc *info)  in exynos_adc_exynos7_init_hw()  argument
397 	if (info->data->needs_adc_phy)  in exynos_adc_exynos7_init_hw()
398 		regmap_write(info->pmu_map, info->data->phy_offset, 1);  in exynos_adc_exynos7_init_hw()
401 	writel(con1, ADC_V2_CON1(info->regs));  in exynos_adc_exynos7_init_hw()
403 	con2 = readl(ADC_V2_CON2(info->regs));  in exynos_adc_exynos7_init_hw()
406 	writel(con2, ADC_V2_CON2(info->regs));  in exynos_adc_exynos7_init_hw()
409 	writel(1, ADC_V2_INT_EN(info->regs));  in exynos_adc_exynos7_init_hw()
469 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_read_raw()  local
477 	reinit_completion(&info->completion);  in exynos_read_raw()
480 	if (info->data->start_conv)  in exynos_read_raw()
481 		info->data->start_conv(info, chan->address);  in exynos_read_raw()
484 			(&info->completion, EXYNOS_ADC_TIMEOUT);  in exynos_read_raw()
487 		if (info->data->init_hw)  in exynos_read_raw()
488 			info->data->init_hw(info);  in exynos_read_raw()
491 		*val = info->value;  in exynos_read_raw()
503 	struct exynos_adc *info = (struct exynos_adc *)dev_id;  in exynos_adc_isr()  local
504 	u32 mask = info->data->mask;  in exynos_adc_isr()
507 	info->value = readl(ADC_V1_DATX(info->regs)) & mask;  in exynos_adc_isr()
510 	if (info->data->clear_irq)  in exynos_adc_isr()
511 		info->data->clear_irq(info);  in exynos_adc_isr()
513 	complete(&info->completion);  in exynos_adc_isr()
522 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_adc_reg_access()  local
527 	*readval = readl(info->regs + reg);  in exynos_adc_reg_access()
571 	struct exynos_adc *info = NULL;  in exynos_adc_probe()  local
587 	info = iio_priv(indio_dev);  in exynos_adc_probe()
589 	info->data = exynos_adc_get_data(pdev);  in exynos_adc_probe()
590 	if (!info->data) {  in exynos_adc_probe()
596 	info->regs = devm_ioremap_resource(&pdev->dev, mem);  in exynos_adc_probe()
597 	if (IS_ERR(info->regs))  in exynos_adc_probe()
598 		return PTR_ERR(info->regs);  in exynos_adc_probe()
601 	if (info->data->needs_adc_phy) {  in exynos_adc_probe()
602 		info->pmu_map = syscon_regmap_lookup_by_phandle(  in exynos_adc_probe()
605 		if (IS_ERR(info->pmu_map)) {  in exynos_adc_probe()
607 			return PTR_ERR(info->pmu_map);  in exynos_adc_probe()
617 	info->irq = irq;  in exynos_adc_probe()
618 	info->dev = &pdev->dev;  in exynos_adc_probe()
620 	init_completion(&info->completion);  in exynos_adc_probe()
622 	info->clk = devm_clk_get(&pdev->dev, "adc");  in exynos_adc_probe()
623 	if (IS_ERR(info->clk)) {  in exynos_adc_probe()
625 							PTR_ERR(info->clk));  in exynos_adc_probe()
626 		return PTR_ERR(info->clk);  in exynos_adc_probe()
629 	if (info->data->needs_sclk) {  in exynos_adc_probe()
630 		info->sclk = devm_clk_get(&pdev->dev, "sclk");  in exynos_adc_probe()
631 		if (IS_ERR(info->sclk)) {  in exynos_adc_probe()
634 				PTR_ERR(info->sclk));  in exynos_adc_probe()
635 			return PTR_ERR(info->sclk);  in exynos_adc_probe()
639 	info->vdd = devm_regulator_get(&pdev->dev, "vdd");  in exynos_adc_probe()
640 	if (IS_ERR(info->vdd)) {  in exynos_adc_probe()
642 							PTR_ERR(info->vdd));  in exynos_adc_probe()
643 		return PTR_ERR(info->vdd);  in exynos_adc_probe()
646 	ret = regulator_enable(info->vdd);  in exynos_adc_probe()
650 	ret = exynos_adc_prepare_clk(info);  in exynos_adc_probe()
654 	ret = exynos_adc_enable_clk(info);  in exynos_adc_probe()
663 	indio_dev->info = &exynos_adc_iio_info;  in exynos_adc_probe()
666 	indio_dev->num_channels = info->data->num_channels;  in exynos_adc_probe()
668 	ret = request_irq(info->irq, exynos_adc_isr,  in exynos_adc_probe()
669 					0, dev_name(&pdev->dev), info);  in exynos_adc_probe()
672 							info->irq);  in exynos_adc_probe()
680 	if (info->data->init_hw)  in exynos_adc_probe()
681 		info->data->init_hw(info);  in exynos_adc_probe()
696 	free_irq(info->irq, info);  in exynos_adc_probe()
698 	if (info->data->exit_hw)  in exynos_adc_probe()
699 		info->data->exit_hw(info);  in exynos_adc_probe()
700 	exynos_adc_disable_clk(info);  in exynos_adc_probe()
702 	exynos_adc_unprepare_clk(info);  in exynos_adc_probe()
704 	regulator_disable(info->vdd);  in exynos_adc_probe()
711 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_adc_remove()  local
716 	free_irq(info->irq, info);  in exynos_adc_remove()
717 	if (info->data->exit_hw)  in exynos_adc_remove()
718 		info->data->exit_hw(info);  in exynos_adc_remove()
719 	exynos_adc_disable_clk(info);  in exynos_adc_remove()
720 	exynos_adc_unprepare_clk(info);  in exynos_adc_remove()
721 	regulator_disable(info->vdd);  in exynos_adc_remove()
730 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_adc_suspend()  local
732 	if (info->data->exit_hw)  in exynos_adc_suspend()
733 		info->data->exit_hw(info);  in exynos_adc_suspend()
734 	exynos_adc_disable_clk(info);  in exynos_adc_suspend()
735 	regulator_disable(info->vdd);  in exynos_adc_suspend()
743 	struct exynos_adc *info = iio_priv(indio_dev);  in exynos_adc_resume()  local
746 	ret = regulator_enable(info->vdd);  in exynos_adc_resume()
750 	ret = exynos_adc_enable_clk(info);  in exynos_adc_resume()
754 	if (info->data->init_hw)  in exynos_adc_resume()
755 		info->data->init_hw(info);  in exynos_adc_resume()