iio: adc: ad7124: Add direct reg access (1d8690fe) · Commits · 戴 / test

drivers/iio/adc/ad7124.c

+30 −0

Original line number	Diff line number	Diff line
		@@ -98,6 +98,14 @@ static const unsigned int ad7124_gain[8] = {
		1, 2, 4, 8, 16, 32, 64, 128
		};

		static const unsigned int ad7124_reg_size[] = {
		1, 2, 3, 3, 2, 1, 3, 3, 1, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3
		};

		static const int ad7124_master_clk_freq_hz[3] = {
		[AD7124_LOW_POWER] = 76800,
		[AD7124_MID_POWER] = 153600,
		@@ -427,6 +435,27 @@ static int ad7124_write_raw(struct iio_dev *indio_dev,
		}
		}

		static int ad7124_reg_access(struct iio_dev *indio_dev,
		unsigned int reg,
		unsigned int writeval,
		unsigned int *readval)
		{
		struct ad7124_state *st = iio_priv(indio_dev);
		int ret;

		if (reg >= ARRAY_SIZE(ad7124_reg_size))
		return -EINVAL;

		if (readval)
		ret = ad_sd_read_reg(&st->sd, reg, ad7124_reg_size[reg],
		readval);
		else
		ret = ad_sd_write_reg(&st->sd, reg, ad7124_reg_size[reg],
		writeval);

		return ret;
		}

		static IIO_CONST_ATTR(in_voltage_scale_available,
		"0.000001164 0.000002328 0.000004656 0.000009313 0.000018626 0.000037252 0.000074505 0.000149011 0.000298023");

		@@ -442,6 +471,7 @@ static const struct attribute_group ad7124_attrs_group = {
		static const struct iio_info ad7124_info = {
		.read_raw = ad7124_read_raw,
		.write_raw = ad7124_write_raw,
		.debugfs_reg_access = &ad7124_reg_access,
		.validate_trigger = ad_sd_validate_trigger,
		.attrs = &ad7124_attrs_group,
		};