3  * This file is part of STM32 DAC driver
18 #include "stm32-dac-core.h"
27  * struct stm32_dac - private data of DAC driver
28  * @common:		reference to DAC common data
39 	struct stm32_dac *dac = iio_priv(indio_dev);  in stm32_dac_is_enabled()  local
43 	ret = regmap_read(dac->common->regmap, STM32_DAC_CR, &val);  in stm32_dac_is_enabled()
57 	struct stm32_dac *dac = iio_priv(indio_dev);  in stm32_dac_set_enable_state()  local
64 	mutex_lock(&dac->lock);  in stm32_dac_set_enable_state()
67 		mutex_unlock(&dac->lock);  in stm32_dac_set_enable_state()
74 			mutex_unlock(&dac->lock);  in stm32_dac_set_enable_state()
79 	ret = regmap_update_bits(dac->common->regmap, STM32_DAC_CR, msk, en);  in stm32_dac_set_enable_state()
80 	mutex_unlock(&dac->lock);  in stm32_dac_set_enable_state()
92 	if (en && dac->common->hfsel)  in stm32_dac_set_enable_state()
111 static int stm32_dac_get_value(struct stm32_dac *dac, int channel, int *val)  in stm32_dac_get_value()  argument
116 		ret = regmap_read(dac->common->regmap, STM32_DAC_DOR1, val);  in stm32_dac_get_value()
118 		ret = regmap_read(dac->common->regmap, STM32_DAC_DOR2, val);  in stm32_dac_get_value()
123 static int stm32_dac_set_value(struct stm32_dac *dac, int channel, int val)  in stm32_dac_set_value()  argument
128 		ret = regmap_write(dac->common->regmap, STM32_DAC_DHR12R1, val);  in stm32_dac_set_value()
130 		ret = regmap_write(dac->common->regmap, STM32_DAC_DHR12R2, val);  in stm32_dac_set_value()
139 	struct stm32_dac *dac = iio_priv(indio_dev);  in stm32_dac_read_raw()  local
143 		return stm32_dac_get_value(dac, chan->channel, val);  in stm32_dac_read_raw()
145 		*val = dac->common->vref_mv;  in stm32_dac_read_raw()
157 	struct stm32_dac *dac = iio_priv(indio_dev);  in stm32_dac_write_raw()  local
161 		return stm32_dac_set_value(dac, chan->channel, val);  in stm32_dac_write_raw()
171 	struct stm32_dac *dac = iio_priv(indio_dev);  in stm32_dac_debugfs_reg_access()  local
174 		return regmap_write(dac->common->regmap, reg, writeval);  in stm32_dac_debugfs_reg_access()
176 		return regmap_read(dac->common->regmap, reg, readval);  in stm32_dac_debugfs_reg_access()
314 	struct stm32_dac *dac;  in stm32_dac_probe()  local
320 	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*dac));  in stm32_dac_probe()
325 	dac = iio_priv(indio_dev);  in stm32_dac_probe()
326 	dac->common = dev_get_drvdata(pdev->dev.parent);  in stm32_dac_probe()
332 	mutex_init(&dac->lock);  in stm32_dac_probe()
338 	/* Get stm32-dac-core PM online */  in stm32_dac_probe()
381 	/* Ensure DAC is disabled before suspend */  in stm32_dac_suspend()
394 	{ .compatible = "st,stm32-dac", },
403 		.name = "stm32-dac",
410 MODULE_ALIAS("platform:stm32-dac");
412 MODULE_DESCRIPTION("STMicroelectronics STM32 DAC driver");