From ed1f310ee23d277d5386f532165911df69afe62f Mon Sep 17 00:00:00 2001 From: Philippe Schenker Date: Tue, 7 May 2019 16:36:15 +0200 Subject: [PATCH] iio: stmpe-adc: Reset possible interrupts Clear any interrupt that still is on the device on every channel this driver is activated for in probe and specific channels in the timeout handler. Signed-off-by: Philippe Schenker Signed-off-by: Jonathan Cameron --- drivers/iio/adc/stmpe-adc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/iio/adc/stmpe-adc.c b/drivers/iio/adc/stmpe-adc.c index 40a4648..bd72727 100644 --- a/drivers/iio/adc/stmpe-adc.c +++ b/drivers/iio/adc/stmpe-adc.c @@ -80,6 +80,8 @@ static int stmpe_read_voltage(struct stmpe_adc *info, ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT); if (ret <= 0) { + stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA, + STMPE_ADC_CH(info->channel)); mutex_unlock(&info->lock); return -ETIMEDOUT; } @@ -325,6 +327,9 @@ static int stmpe_adc_probe(struct platform_device *pdev) stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_EN, ~(norequest_mask & 0xFF)); + stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA, + ~(norequest_mask & 0xFF)); + return devm_iio_device_register(&pdev->dev, indio_dev); } -- 2.7.4