Lines Matching refs:adc
92 static unsigned int rzg2l_adc_readl(struct rzg2l_adc *adc, u32 reg) in rzg2l_adc_readl() argument
94 return readl(adc->base + reg); in rzg2l_adc_readl()
97 static void rzg2l_adc_writel(struct rzg2l_adc *adc, unsigned int reg, u32 val) in rzg2l_adc_writel() argument
99 writel(val, adc->base + reg); in rzg2l_adc_writel()
102 static void rzg2l_adc_pwr(struct rzg2l_adc *adc, bool on) in rzg2l_adc_pwr() argument
106 reg = rzg2l_adc_readl(adc, RZG2L_ADM(0)); in rzg2l_adc_pwr()
111 rzg2l_adc_writel(adc, RZG2L_ADM(0), reg); in rzg2l_adc_pwr()
115 static void rzg2l_adc_start_stop(struct rzg2l_adc *adc, bool start) in rzg2l_adc_start_stop() argument
120 reg = rzg2l_adc_readl(adc, RZG2L_ADM(0)); in rzg2l_adc_start_stop()
125 rzg2l_adc_writel(adc, RZG2L_ADM(0), reg); in rzg2l_adc_start_stop()
132 reg = rzg2l_adc_readl(adc, RZG2L_ADM(0)); in rzg2l_adc_start_stop()
141 static void rzg2l_set_trigger(struct rzg2l_adc *adc) in rzg2l_set_trigger() argument
152 reg = rzg2l_adc_readl(adc, RZG2L_ADM(1)); in rzg2l_set_trigger()
157 rzg2l_adc_writel(adc, RZG2L_ADM(1), reg); in rzg2l_set_trigger()
160 static int rzg2l_adc_conversion_setup(struct rzg2l_adc *adc, u8 ch) in rzg2l_adc_conversion_setup() argument
164 if (rzg2l_adc_readl(adc, RZG2L_ADM(0)) & RZG2L_ADM0_ADBSY) in rzg2l_adc_conversion_setup()
167 rzg2l_set_trigger(adc); in rzg2l_adc_conversion_setup()
170 reg = rzg2l_adc_readl(adc, RZG2L_ADM(2)); in rzg2l_adc_conversion_setup()
173 rzg2l_adc_writel(adc, RZG2L_ADM(2), reg); in rzg2l_adc_conversion_setup()
181 reg = rzg2l_adc_readl(adc, RZG2L_ADINT); in rzg2l_adc_conversion_setup()
185 rzg2l_adc_writel(adc, RZG2L_ADINT, reg); in rzg2l_adc_conversion_setup()
200 static int rzg2l_adc_conversion(struct iio_dev *indio_dev, struct rzg2l_adc *adc, u8 ch) in rzg2l_adc_conversion() argument
208 ret = rzg2l_adc_conversion_setup(adc, ch); in rzg2l_adc_conversion()
214 reinit_completion(&adc->completion); in rzg2l_adc_conversion()
216 rzg2l_adc_start_stop(adc, true); in rzg2l_adc_conversion()
218 if (!wait_for_completion_timeout(&adc->completion, RZG2L_ADC_TIMEOUT)) { in rzg2l_adc_conversion()
219 rzg2l_adc_writel(adc, RZG2L_ADINT, in rzg2l_adc_conversion()
220 rzg2l_adc_readl(adc, RZG2L_ADINT) & ~RZG2L_ADINT_INTEN_MASK); in rzg2l_adc_conversion()
221 rzg2l_adc_start_stop(adc, false); in rzg2l_adc_conversion()
233 struct rzg2l_adc *adc = iio_priv(indio_dev); in rzg2l_adc_read_raw() local
242 mutex_lock(&adc->lock); in rzg2l_adc_read_raw()
244 ret = rzg2l_adc_conversion(indio_dev, adc, ch); in rzg2l_adc_read_raw()
246 mutex_unlock(&adc->lock); in rzg2l_adc_read_raw()
249 *val = adc->last_val[ch]; in rzg2l_adc_read_raw()
250 mutex_unlock(&adc->lock); in rzg2l_adc_read_raw()
276 struct rzg2l_adc *adc = dev_id; in rzg2l_adc_isr() local
281 reg = rzg2l_adc_readl(adc, RZG2L_ADSTS); in rzg2l_adc_isr()
285 rzg2l_adc_writel(adc, RZG2L_ADSTS, reg); in rzg2l_adc_isr()
294 adc->last_val[ch] = rzg2l_adc_readl(adc, RZG2L_ADCR(ch)) & RZG2L_ADCR_AD_MASK; in rzg2l_adc_isr()
297 rzg2l_adc_writel(adc, RZG2L_ADSTS, reg); in rzg2l_adc_isr()
299 complete(&adc->completion); in rzg2l_adc_isr()
304 static int rzg2l_adc_parse_properties(struct platform_device *pdev, struct rzg2l_adc *adc) in rzg2l_adc_parse_properties() argument
353 adc->data = data; in rzg2l_adc_parse_properties()
358 static int rzg2l_adc_hw_init(struct rzg2l_adc *adc) in rzg2l_adc_hw_init() argument
364 ret = clk_prepare_enable(adc->pclk); in rzg2l_adc_hw_init()
369 reg = rzg2l_adc_readl(adc, RZG2L_ADM(0)); in rzg2l_adc_hw_init()
371 rzg2l_adc_writel(adc, RZG2L_ADM(0), reg); in rzg2l_adc_hw_init()
373 while (!(rzg2l_adc_readl(adc, RZG2L_ADM(0)) & RZG2L_ADM0_SRESB)) { in rzg2l_adc_hw_init()
383 reg = rzg2l_adc_readl(adc, RZG2L_ADIVC); in rzg2l_adc_hw_init()
386 rzg2l_adc_writel(adc, RZG2L_ADIVC, reg); in rzg2l_adc_hw_init()
394 reg = rzg2l_adc_readl(adc, RZG2L_ADM(3)); in rzg2l_adc_hw_init()
399 rzg2l_adc_writel(adc, RZG2L_ADM(3), reg); in rzg2l_adc_hw_init()
402 clk_disable_unprepare(adc->pclk); in rzg2l_adc_hw_init()
430 struct rzg2l_adc *adc; in rzg2l_adc_probe() local
434 indio_dev = devm_iio_device_alloc(dev, sizeof(*adc)); in rzg2l_adc_probe()
438 adc = iio_priv(indio_dev); in rzg2l_adc_probe()
440 ret = rzg2l_adc_parse_properties(pdev, adc); in rzg2l_adc_probe()
444 mutex_init(&adc->lock); in rzg2l_adc_probe()
446 adc->base = devm_platform_ioremap_resource(pdev, 0); in rzg2l_adc_probe()
447 if (IS_ERR(adc->base)) in rzg2l_adc_probe()
448 return PTR_ERR(adc->base); in rzg2l_adc_probe()
450 adc->pclk = devm_clk_get(dev, "pclk"); in rzg2l_adc_probe()
451 if (IS_ERR(adc->pclk)) { in rzg2l_adc_probe()
453 return PTR_ERR(adc->pclk); in rzg2l_adc_probe()
456 adc->adclk = devm_clk_get(dev, "adclk"); in rzg2l_adc_probe()
457 if (IS_ERR(adc->adclk)) { in rzg2l_adc_probe()
459 return PTR_ERR(adc->adclk); in rzg2l_adc_probe()
462 adc->adrstn = devm_reset_control_get_exclusive(dev, "adrst-n"); in rzg2l_adc_probe()
463 if (IS_ERR(adc->adrstn)) { in rzg2l_adc_probe()
465 return PTR_ERR(adc->adrstn); in rzg2l_adc_probe()
468 adc->presetn = devm_reset_control_get_exclusive(dev, "presetn"); in rzg2l_adc_probe()
469 if (IS_ERR(adc->presetn)) { in rzg2l_adc_probe()
471 return PTR_ERR(adc->presetn); in rzg2l_adc_probe()
474 ret = reset_control_deassert(adc->adrstn); in rzg2l_adc_probe()
481 rzg2l_adc_reset_assert, adc->adrstn); in rzg2l_adc_probe()
488 ret = reset_control_deassert(adc->presetn); in rzg2l_adc_probe()
495 rzg2l_adc_reset_assert, adc->presetn); in rzg2l_adc_probe()
502 ret = rzg2l_adc_hw_init(adc); in rzg2l_adc_probe()
515 0, dev_name(dev), adc); in rzg2l_adc_probe()
519 init_completion(&adc->completion); in rzg2l_adc_probe()
526 indio_dev->channels = adc->data->channels; in rzg2l_adc_probe()
527 indio_dev->num_channels = adc->data->num_channels; in rzg2l_adc_probe()
553 struct rzg2l_adc *adc = iio_priv(indio_dev); in rzg2l_adc_pm_runtime_suspend() local
555 rzg2l_adc_pwr(adc, false); in rzg2l_adc_pm_runtime_suspend()
556 clk_disable_unprepare(adc->adclk); in rzg2l_adc_pm_runtime_suspend()
557 clk_disable_unprepare(adc->pclk); in rzg2l_adc_pm_runtime_suspend()
565 struct rzg2l_adc *adc = iio_priv(indio_dev); in rzg2l_adc_pm_runtime_resume() local
568 ret = clk_prepare_enable(adc->pclk); in rzg2l_adc_pm_runtime_resume()
572 ret = clk_prepare_enable(adc->adclk); in rzg2l_adc_pm_runtime_resume()
574 clk_disable_unprepare(adc->pclk); in rzg2l_adc_pm_runtime_resume()
578 rzg2l_adc_pwr(adc, true); in rzg2l_adc_pm_runtime_resume()