Lines Matching refs:adc_dev
66 static inline void cc10001_adc_write_reg(struct cc10001_adc_device *adc_dev, in cc10001_adc_write_reg() argument
69 writel(val, adc_dev->reg_base + reg); in cc10001_adc_write_reg()
72 static inline u32 cc10001_adc_read_reg(struct cc10001_adc_device *adc_dev, in cc10001_adc_read_reg() argument
75 return readl(adc_dev->reg_base + reg); in cc10001_adc_read_reg()
78 static void cc10001_adc_power_up(struct cc10001_adc_device *adc_dev) in cc10001_adc_power_up() argument
80 cc10001_adc_write_reg(adc_dev, CC10001_ADC_POWER_DOWN, 0); in cc10001_adc_power_up()
81 ndelay(adc_dev->start_delay_ns); in cc10001_adc_power_up()
84 static void cc10001_adc_power_down(struct cc10001_adc_device *adc_dev) in cc10001_adc_power_down() argument
86 cc10001_adc_write_reg(adc_dev, CC10001_ADC_POWER_DOWN, in cc10001_adc_power_down()
90 static void cc10001_adc_start(struct cc10001_adc_device *adc_dev, in cc10001_adc_start() argument
97 cc10001_adc_write_reg(adc_dev, CC10001_ADC_CONFIG, val); in cc10001_adc_start()
100 val = cc10001_adc_read_reg(adc_dev, CC10001_ADC_CONFIG); in cc10001_adc_start()
102 cc10001_adc_write_reg(adc_dev, CC10001_ADC_CONFIG, val); in cc10001_adc_start()
109 struct cc10001_adc_device *adc_dev = iio_priv(indio_dev); in cc10001_adc_poll_done() local
112 while (!(cc10001_adc_read_reg(adc_dev, CC10001_ADC_EOC) & in cc10001_adc_poll_done()
121 while ((cc10001_adc_read_reg(adc_dev, CC10001_ADC_CHSEL_SAMPLED) & in cc10001_adc_poll_done()
130 return cc10001_adc_read_reg(adc_dev, CC10001_ADC_DDATA_OUT) & in cc10001_adc_poll_done()
136 struct cc10001_adc_device *adc_dev; in cc10001_adc_trigger_h() local
147 adc_dev = iio_priv(indio_dev); in cc10001_adc_trigger_h()
148 data = adc_dev->buf; in cc10001_adc_trigger_h()
150 mutex_lock(&adc_dev->lock); in cc10001_adc_trigger_h()
152 if (!adc_dev->shared) in cc10001_adc_trigger_h()
153 cc10001_adc_power_up(adc_dev); in cc10001_adc_trigger_h()
156 delay_ns = adc_dev->eoc_delay_ns / CC10001_MAX_POLL_COUNT; in cc10001_adc_trigger_h()
162 cc10001_adc_start(adc_dev, channel); in cc10001_adc_trigger_h()
175 if (!adc_dev->shared) in cc10001_adc_trigger_h()
176 cc10001_adc_power_down(adc_dev); in cc10001_adc_trigger_h()
178 mutex_unlock(&adc_dev->lock); in cc10001_adc_trigger_h()
191 struct cc10001_adc_device *adc_dev = iio_priv(indio_dev); in cc10001_adc_read_raw_voltage() local
195 if (!adc_dev->shared) in cc10001_adc_read_raw_voltage()
196 cc10001_adc_power_up(adc_dev); in cc10001_adc_read_raw_voltage()
199 delay_ns = adc_dev->eoc_delay_ns / CC10001_MAX_POLL_COUNT; in cc10001_adc_read_raw_voltage()
201 cc10001_adc_start(adc_dev, chan->channel); in cc10001_adc_read_raw_voltage()
205 if (!adc_dev->shared) in cc10001_adc_read_raw_voltage()
206 cc10001_adc_power_down(adc_dev); in cc10001_adc_read_raw_voltage()
215 struct cc10001_adc_device *adc_dev = iio_priv(indio_dev); in cc10001_adc_read_raw() local
222 mutex_lock(&adc_dev->lock); in cc10001_adc_read_raw()
224 mutex_unlock(&adc_dev->lock); in cc10001_adc_read_raw()
231 ret = regulator_get_voltage(adc_dev->reg); in cc10001_adc_read_raw()
247 struct cc10001_adc_device *adc_dev = iio_priv(indio_dev); in cc10001_update_scan_mode() local
249 kfree(adc_dev->buf); in cc10001_update_scan_mode()
250 adc_dev->buf = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); in cc10001_update_scan_mode()
251 if (!adc_dev->buf) in cc10001_update_scan_mode()
319 struct cc10001_adc_device *adc_dev; in cc10001_adc_probe() local
325 indio_dev = devm_iio_device_alloc(dev, sizeof(*adc_dev)); in cc10001_adc_probe()
329 adc_dev = iio_priv(indio_dev); in cc10001_adc_probe()
333 adc_dev->shared = true; in cc10001_adc_probe()
337 adc_dev->reg = devm_regulator_get(dev, "vref"); in cc10001_adc_probe()
338 if (IS_ERR(adc_dev->reg)) in cc10001_adc_probe()
339 return PTR_ERR(adc_dev->reg); in cc10001_adc_probe()
341 ret = regulator_enable(adc_dev->reg); in cc10001_adc_probe()
345 ret = devm_add_action_or_reset(dev, cc10001_reg_disable, adc_dev->reg); in cc10001_adc_probe()
353 adc_dev->reg_base = devm_platform_ioremap_resource(pdev, 0); in cc10001_adc_probe()
354 if (IS_ERR(adc_dev->reg_base)) in cc10001_adc_probe()
355 return PTR_ERR(adc_dev->reg_base); in cc10001_adc_probe()
357 adc_dev->adc_clk = devm_clk_get_enabled(dev, "adc"); in cc10001_adc_probe()
358 if (IS_ERR(adc_dev->adc_clk)) { in cc10001_adc_probe()
360 return PTR_ERR(adc_dev->adc_clk); in cc10001_adc_probe()
363 adc_clk_rate = clk_get_rate(adc_dev->adc_clk); in cc10001_adc_probe()
369 adc_dev->eoc_delay_ns = NSEC_PER_SEC / adc_clk_rate; in cc10001_adc_probe()
370 adc_dev->start_delay_ns = adc_dev->eoc_delay_ns * CC10001_WAIT_CYCLES; in cc10001_adc_probe()
377 if (adc_dev->shared) in cc10001_adc_probe()
378 cc10001_adc_power_up(adc_dev); in cc10001_adc_probe()
380 ret = devm_add_action_or_reset(dev, cc10001_pd_cb, adc_dev); in cc10001_adc_probe()
388 mutex_init(&adc_dev->lock); in cc10001_adc_probe()