Lines Matching refs:adc_dev
67 static inline void cc10001_adc_write_reg(struct cc10001_adc_device *adc_dev, in cc10001_adc_write_reg() argument
70 writel(val, adc_dev->reg_base + reg); in cc10001_adc_write_reg()
73 static inline u32 cc10001_adc_read_reg(struct cc10001_adc_device *adc_dev, in cc10001_adc_read_reg() argument
76 return readl(adc_dev->reg_base + reg); in cc10001_adc_read_reg()
79 static void cc10001_adc_power_up(struct cc10001_adc_device *adc_dev) in cc10001_adc_power_up() argument
81 cc10001_adc_write_reg(adc_dev, CC10001_ADC_POWER_DOWN, 0); in cc10001_adc_power_up()
82 ndelay(adc_dev->start_delay_ns); in cc10001_adc_power_up()
85 static void cc10001_adc_power_down(struct cc10001_adc_device *adc_dev) in cc10001_adc_power_down() argument
87 cc10001_adc_write_reg(adc_dev, CC10001_ADC_POWER_DOWN, in cc10001_adc_power_down()
91 static void cc10001_adc_start(struct cc10001_adc_device *adc_dev, in cc10001_adc_start() argument
98 cc10001_adc_write_reg(adc_dev, CC10001_ADC_CONFIG, val); in cc10001_adc_start()
101 val = cc10001_adc_read_reg(adc_dev, CC10001_ADC_CONFIG); in cc10001_adc_start()
103 cc10001_adc_write_reg(adc_dev, CC10001_ADC_CONFIG, val); in cc10001_adc_start()
110 struct cc10001_adc_device *adc_dev = iio_priv(indio_dev); in cc10001_adc_poll_done() local
113 while (!(cc10001_adc_read_reg(adc_dev, CC10001_ADC_EOC) & in cc10001_adc_poll_done()
122 while ((cc10001_adc_read_reg(adc_dev, CC10001_ADC_CHSEL_SAMPLED) & in cc10001_adc_poll_done()
131 return cc10001_adc_read_reg(adc_dev, CC10001_ADC_DDATA_OUT) & in cc10001_adc_poll_done()
137 struct cc10001_adc_device *adc_dev; in cc10001_adc_trigger_h() local
148 adc_dev = iio_priv(indio_dev); in cc10001_adc_trigger_h()
149 data = adc_dev->buf; in cc10001_adc_trigger_h()
151 mutex_lock(&adc_dev->lock); in cc10001_adc_trigger_h()
153 if (!adc_dev->shared) in cc10001_adc_trigger_h()
154 cc10001_adc_power_up(adc_dev); in cc10001_adc_trigger_h()
157 delay_ns = adc_dev->eoc_delay_ns / CC10001_MAX_POLL_COUNT; in cc10001_adc_trigger_h()
165 cc10001_adc_start(adc_dev, channel); in cc10001_adc_trigger_h()
178 if (!adc_dev->shared) in cc10001_adc_trigger_h()
179 cc10001_adc_power_down(adc_dev); in cc10001_adc_trigger_h()
181 mutex_unlock(&adc_dev->lock); in cc10001_adc_trigger_h()
194 struct cc10001_adc_device *adc_dev = iio_priv(indio_dev); in cc10001_adc_read_raw_voltage() local
198 if (!adc_dev->shared) in cc10001_adc_read_raw_voltage()
199 cc10001_adc_power_up(adc_dev); in cc10001_adc_read_raw_voltage()
202 delay_ns = adc_dev->eoc_delay_ns / CC10001_MAX_POLL_COUNT; in cc10001_adc_read_raw_voltage()
204 cc10001_adc_start(adc_dev, chan->channel); in cc10001_adc_read_raw_voltage()
208 if (!adc_dev->shared) in cc10001_adc_read_raw_voltage()
209 cc10001_adc_power_down(adc_dev); in cc10001_adc_read_raw_voltage()
218 struct cc10001_adc_device *adc_dev = iio_priv(indio_dev); in cc10001_adc_read_raw() local
225 mutex_lock(&adc_dev->lock); in cc10001_adc_read_raw()
227 mutex_unlock(&adc_dev->lock); in cc10001_adc_read_raw()
234 ret = regulator_get_voltage(adc_dev->reg); in cc10001_adc_read_raw()
250 struct cc10001_adc_device *adc_dev = iio_priv(indio_dev); in cc10001_update_scan_mode() local
252 kfree(adc_dev->buf); in cc10001_update_scan_mode()
253 adc_dev->buf = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); in cc10001_update_scan_mode()
254 if (!adc_dev->buf) in cc10001_update_scan_mode()
322 struct cc10001_adc_device *adc_dev; in cc10001_adc_probe() local
328 indio_dev = devm_iio_device_alloc(dev, sizeof(*adc_dev)); in cc10001_adc_probe()
332 adc_dev = iio_priv(indio_dev); in cc10001_adc_probe()
336 adc_dev->shared = true; in cc10001_adc_probe()
340 adc_dev->reg = devm_regulator_get(dev, "vref"); in cc10001_adc_probe()
341 if (IS_ERR(adc_dev->reg)) in cc10001_adc_probe()
342 return PTR_ERR(adc_dev->reg); in cc10001_adc_probe()
344 ret = regulator_enable(adc_dev->reg); in cc10001_adc_probe()
348 ret = devm_add_action_or_reset(dev, cc10001_reg_disable, adc_dev->reg); in cc10001_adc_probe()
356 adc_dev->reg_base = devm_platform_ioremap_resource(pdev, 0); in cc10001_adc_probe()
357 if (IS_ERR(adc_dev->reg_base)) in cc10001_adc_probe()
358 return PTR_ERR(adc_dev->reg_base); in cc10001_adc_probe()
360 adc_dev->adc_clk = devm_clk_get_enabled(dev, "adc"); in cc10001_adc_probe()
361 if (IS_ERR(adc_dev->adc_clk)) { in cc10001_adc_probe()
363 return PTR_ERR(adc_dev->adc_clk); in cc10001_adc_probe()
366 adc_clk_rate = clk_get_rate(adc_dev->adc_clk); in cc10001_adc_probe()
372 adc_dev->eoc_delay_ns = NSEC_PER_SEC / adc_clk_rate; in cc10001_adc_probe()
373 adc_dev->start_delay_ns = adc_dev->eoc_delay_ns * CC10001_WAIT_CYCLES; in cc10001_adc_probe()
380 if (adc_dev->shared) in cc10001_adc_probe()
381 cc10001_adc_power_up(adc_dev); in cc10001_adc_probe()
383 ret = devm_add_action_or_reset(dev, cc10001_pd_cb, adc_dev); in cc10001_adc_probe()
391 mutex_init(&adc_dev->lock); in cc10001_adc_probe()