diff options
Diffstat (limited to 'drivers/iio/adc/ad7192.c')
-rw-r--r-- | drivers/iio/adc/ad7192.c | 31 |
1 files changed, 9 insertions, 22 deletions
diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index 7bc3ebfe8081..69d1103b9508 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -16,7 +16,7 @@ #include <linux/err.h> #include <linux/sched.h> #include <linux/delay.h> -#include <linux/of_device.h> +#include <linux/of.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -402,8 +402,8 @@ static int ad7192_setup(struct iio_dev *indio_dev, struct device_node *np) id &= AD7192_ID_MASK; if (id != st->chip_info->chip_id) - dev_warn(&st->sd.spi->dev, "device ID query failed (0x%X)\n", - id); + dev_warn(&st->sd.spi->dev, "device ID query failed (0x%X != 0x%X)\n", + id, st->chip_info->chip_id); st->mode = AD7192_MODE_SEL(AD7192_MODE_IDLE) | AD7192_MODE_CLKSRC(st->clock_sel) | @@ -561,9 +561,8 @@ static ssize_t ad7192_show_filter_avail(struct device *dev, ad7192_get_available_filter_freq(st, freq_avail); for (i = 0; i < ARRAY_SIZE(freq_avail); i++) - len += scnprintf(buf + len, PAGE_SIZE - len, - "%d.%d ", freq_avail[i] / 1000, - freq_avail[i] % 1000); + len += sysfs_emit_at(buf, len, "%d.%03d ", freq_avail[i] / 1000, + freq_avail[i] % 1000); buf[len - 1] = '\n'; @@ -972,11 +971,6 @@ static void ad7192_reg_disable(void *reg) regulator_disable(reg); } -static void ad7192_clk_disable(void *clk) -{ - clk_disable_unprepare(clk); -} - static int ad7192_probe(struct spi_device *spi) { struct ad7192_state *st; @@ -1036,7 +1030,9 @@ static int ad7192_probe(struct spi_device *spi) else indio_dev->info = &ad7192_info; - ad_sd_init(&st->sd, indio_dev, spi, &ad7192_sigma_delta_info); + ret = ad_sd_init(&st->sd, indio_dev, spi, &ad7192_sigma_delta_info); + if (ret) + return ret; ret = devm_ad_sd_setup_buffer_and_trigger(&spi->dev, indio_dev); if (ret) @@ -1044,7 +1040,7 @@ static int ad7192_probe(struct spi_device *spi) st->fclk = AD7192_INT_FREQ_MHZ; - st->mclk = devm_clk_get_optional(&spi->dev, "mclk"); + st->mclk = devm_clk_get_optional_enabled(&spi->dev, "mclk"); if (IS_ERR(st->mclk)) return PTR_ERR(st->mclk); @@ -1052,15 +1048,6 @@ static int ad7192_probe(struct spi_device *spi) if (st->clock_sel == AD7192_CLK_EXT_MCLK1_2 || st->clock_sel == AD7192_CLK_EXT_MCLK2) { - ret = clk_prepare_enable(st->mclk); - if (ret < 0) - return ret; - - ret = devm_add_action_or_reset(&spi->dev, ad7192_clk_disable, - st->mclk); - if (ret) - return ret; - st->fclk = clk_get_rate(st->mclk); if (!ad7192_valid_external_frequency(st->fclk)) { dev_err(&spi->dev, |