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[98.183.112.25]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-2971d6654e9sm5069542fac.24.2024.11.27.12.02.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Nov 2024 12:02:52 -0800 (PST) From: David Lechner Date: Wed, 27 Nov 2024 14:01:55 -0600 Subject: [PATCH v2 3/3] iio: adc: ad7173: don't make copy of ad_sigma_delta_info struct Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241127-iio-adc-ad7313-fix-non-const-info-struct-v2-3-b6d7022b7466@baylibre.com> References: <20241127-iio-adc-ad7313-fix-non-const-info-struct-v2-0-b6d7022b7466@baylibre.com> In-Reply-To: <20241127-iio-adc-ad7313-fix-non-const-info-struct-v2-0-b6d7022b7466@baylibre.com> To: Jonathan Cameron , Dumitru Ceclan Cc: Michael Hennerich , Nuno Sa , Michael Walle , Andy Shevchenko , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Guillaume Ranquet , David Lechner X-Mailer: b4 0.14.1 Use two separate static const struct ad_sigma_delta_info instances instead of making a copy for each driver instance. Typically in the IIO subsystem, we use multiple static const instances of the same struct when there are different variants of the same family of devices as opposed to making a copy for each driver instance and modifying it. Signed-off-by: David Lechner --- Whether this patch is an improvement or not is debatable. It makes things a bit more verbose, but to me it seems more consistent with how such cases are handled in the IIO subsystem. So take this one or leave it. --- drivers/iio/adc/ad7173.c | 470 +++++++++++++++++++++++++---------------------- 1 file changed, 248 insertions(+), 222 deletions(-) diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c index 52fce43e4ce1..04533b37d9ec 100644 --- a/drivers/iio/adc/ad7173.c +++ b/drivers/iio/adc/ad7173.c @@ -166,6 +166,7 @@ struct ad7173_device_info { unsigned int clock; unsigned int id; char *name; + const struct ad_sigma_delta_info *sd_info; bool has_current_inputs; bool has_vincom_input; bool has_temp; @@ -199,7 +200,6 @@ struct ad7173_channel { struct ad7173_state { struct ad_sigma_delta sd; - struct ad_sigma_delta_chip_info sigma_delta_info; const struct ad7173_device_info *info; struct ad7173_channel *channels; struct regulator_bulk_data regulators[3]; @@ -258,223 +258,6 @@ static unsigned int ad4111_current_channel_config[] = { 0x18B, /* 12:IIN3+ 11:IIN3− */ }; -static const struct ad7173_device_info ad4111_device_info = { - .name = "ad4111", - .id = AD4111_ID, - .num_voltage_in_div = 8, - .num_channels = 16, - .num_configs = 8, - .num_voltage_in = 8, - .num_gpios = 2, - .higher_gpio_bits = true, - .has_temp = true, - .has_vincom_input = true, - .has_input_buf = true, - .has_current_inputs = true, - .has_int_ref = true, - .clock = 2 * HZ_PER_MHZ, - .sinc5_data_rates = ad7173_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad4112_device_info = { - .name = "ad4112", - .id = AD4112_ID, - .num_voltage_in_div = 8, - .num_channels = 16, - .num_configs = 8, - .num_voltage_in = 8, - .num_gpios = 2, - .higher_gpio_bits = true, - .has_vincom_input = true, - .has_temp = true, - .has_input_buf = true, - .has_current_inputs = true, - .has_int_ref = true, - .clock = 2 * HZ_PER_MHZ, - .sinc5_data_rates = ad7173_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad4113_device_info = { - .name = "ad4113", - .id = AD4113_ID, - .num_voltage_in_div = 8, - .num_channels = 16, - .num_configs = 8, - .num_voltage_in = 8, - .num_gpios = 2, - .data_reg_only_16bit = true, - .higher_gpio_bits = true, - .has_vincom_input = true, - .has_input_buf = true, - .has_int_ref = true, - .clock = 2 * HZ_PER_MHZ, - .sinc5_data_rates = ad7173_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad4114_device_info = { - .name = "ad4114", - .id = AD4114_ID, - .num_voltage_in_div = 16, - .num_channels = 16, - .num_configs = 8, - .num_voltage_in = 16, - .num_gpios = 4, - .has_vincom_input = true, - .has_temp = true, - .has_input_buf = true, - .has_int_ref = true, - .clock = 2 * HZ_PER_MHZ, - .sinc5_data_rates = ad7173_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad4115_device_info = { - .name = "ad4115", - .id = AD4115_ID, - .num_voltage_in_div = 16, - .num_channels = 16, - .num_configs = 8, - .num_voltage_in = 16, - .num_gpios = 4, - .has_vincom_input = true, - .has_temp = true, - .has_input_buf = true, - .has_int_ref = true, - .clock = 8 * HZ_PER_MHZ, - .sinc5_data_rates = ad4115_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad4115_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad4116_device_info = { - .name = "ad4116", - .id = AD4116_ID, - .num_voltage_in_div = 11, - .num_channels = 16, - .num_configs = 8, - .num_voltage_in = 16, - .num_gpios = 4, - .has_vincom_input = true, - .has_temp = true, - .has_input_buf = true, - .has_int_ref = true, - .clock = 4 * HZ_PER_MHZ, - .sinc5_data_rates = ad4116_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad4116_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad7172_2_device_info = { - .name = "ad7172-2", - .id = AD7172_2_ID, - .num_voltage_in = 5, - .num_channels = 4, - .num_configs = 4, - .num_gpios = 2, - .has_temp = true, - .has_input_buf = true, - .has_int_ref = true, - .has_pow_supply_monitoring = true, - .clock = 2 * HZ_PER_MHZ, - .sinc5_data_rates = ad7173_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad7172_4_device_info = { - .name = "ad7172-4", - .id = AD7172_4_ID, - .num_voltage_in = 9, - .num_channels = 8, - .num_configs = 8, - .num_gpios = 4, - .has_input_buf = true, - .has_ref2 = true, - .has_pow_supply_monitoring = true, - .clock = 2 * HZ_PER_MHZ, - .sinc5_data_rates = ad7173_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad7173_8_device_info = { - .name = "ad7173-8", - .id = AD7173_ID, - .num_voltage_in = 17, - .num_channels = 16, - .num_configs = 8, - .num_gpios = 4, - .has_temp = true, - .has_input_buf = true, - .has_int_ref = true, - .has_ref2 = true, - .clock = 2 * HZ_PER_MHZ, - .sinc5_data_rates = ad7173_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad7175_2_device_info = { - .name = "ad7175-2", - .id = AD7175_2_ID, - .num_voltage_in = 5, - .num_channels = 4, - .num_configs = 4, - .num_gpios = 2, - .has_temp = true, - .has_input_buf = true, - .has_int_ref = true, - .has_pow_supply_monitoring = true, - .clock = 16 * HZ_PER_MHZ, - .sinc5_data_rates = ad7175_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad7175_8_device_info = { - .name = "ad7175-8", - .id = AD7175_8_ID, - .num_voltage_in = 17, - .num_channels = 16, - .num_configs = 8, - .num_gpios = 4, - .has_temp = true, - .has_input_buf = true, - .has_int_ref = true, - .has_ref2 = true, - .has_pow_supply_monitoring = true, - .clock = 16 * HZ_PER_MHZ, - .sinc5_data_rates = ad7175_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad7176_2_device_info = { - .name = "ad7176-2", - .id = AD7176_ID, - .num_voltage_in = 5, - .num_channels = 4, - .num_configs = 4, - .num_gpios = 2, - .has_int_ref = true, - .clock = 16 * HZ_PER_MHZ, - .sinc5_data_rates = ad7175_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates), -}; - -static const struct ad7173_device_info ad7177_2_device_info = { - .name = "ad7177-2", - .id = AD7177_ID, - .num_voltage_in = 5, - .num_channels = 4, - .num_configs = 4, - .num_gpios = 2, - .has_temp = true, - .has_input_buf = true, - .has_int_ref = true, - .has_pow_supply_monitoring = true, - .clock = 16 * HZ_PER_MHZ, - .odr_start_value = AD7177_ODR_START_VALUE, - .sinc5_data_rates = ad7175_sinc5_data_rates, - .num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates), -}; - static const char *const ad7173_ref_sel_str[] = { [AD7173_SETUP_REF_SEL_EXT_REF] = "vref", [AD7173_SETUP_REF_SEL_EXT_REF2] = "vref2", @@ -753,7 +536,21 @@ static int ad7173_disable_one(struct ad_sigma_delta *sd, unsigned int chan) return ad_sd_write_reg(sd, AD7173_REG_CH(chan), 2, 0); } -static const struct ad_sigma_delta_info ad7173_sigma_delta_info = { +static const struct ad_sigma_delta_info ad7173_sigma_delta_info_4_slots = { + .set_channel = ad7173_set_channel, + .append_status = ad7173_append_status, + .disable_all = ad7173_disable_all, + .disable_one = ad7173_disable_one, + .set_mode = ad7173_set_mode, + .has_registers = true, + .addr_shift = 0, + .read_mask = BIT(6), + .status_ch_mask = GENMASK(3, 0), + .data_reg = AD7173_REG_DATA, + .num_slots = 4, +}; + +static const struct ad_sigma_delta_info ad7173_sigma_delta_info_8_slots = { .set_channel = ad7173_set_channel, .append_status = ad7173_append_status, .disable_all = ad7173_disable_all, @@ -764,6 +561,237 @@ static const struct ad_sigma_delta_info ad7173_sigma_delta_info = { .read_mask = BIT(6), .status_ch_mask = GENMASK(3, 0), .data_reg = AD7173_REG_DATA, + .num_slots = 8, +}; + +static const struct ad7173_device_info ad4111_device_info = { + .name = "ad4111", + .id = AD4111_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in_div = 8, + .num_channels = 16, + .num_configs = 8, + .num_voltage_in = 8, + .num_gpios = 2, + .higher_gpio_bits = true, + .has_temp = true, + .has_vincom_input = true, + .has_input_buf = true, + .has_current_inputs = true, + .has_int_ref = true, + .clock = 2 * HZ_PER_MHZ, + .sinc5_data_rates = ad7173_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad4112_device_info = { + .name = "ad4112", + .id = AD4112_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in_div = 8, + .num_channels = 16, + .num_configs = 8, + .num_voltage_in = 8, + .num_gpios = 2, + .higher_gpio_bits = true, + .has_vincom_input = true, + .has_temp = true, + .has_input_buf = true, + .has_current_inputs = true, + .has_int_ref = true, + .clock = 2 * HZ_PER_MHZ, + .sinc5_data_rates = ad7173_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad4113_device_info = { + .name = "ad4113", + .id = AD4113_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in_div = 8, + .num_channels = 16, + .num_configs = 8, + .num_voltage_in = 8, + .num_gpios = 2, + .data_reg_only_16bit = true, + .higher_gpio_bits = true, + .has_vincom_input = true, + .has_input_buf = true, + .has_int_ref = true, + .clock = 2 * HZ_PER_MHZ, + .sinc5_data_rates = ad7173_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad4114_device_info = { + .name = "ad4114", + .id = AD4114_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in_div = 16, + .num_channels = 16, + .num_configs = 8, + .num_voltage_in = 16, + .num_gpios = 4, + .has_vincom_input = true, + .has_temp = true, + .has_input_buf = true, + .has_int_ref = true, + .clock = 2 * HZ_PER_MHZ, + .sinc5_data_rates = ad7173_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad4115_device_info = { + .name = "ad4115", + .id = AD4115_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in_div = 16, + .num_channels = 16, + .num_configs = 8, + .num_voltage_in = 16, + .num_gpios = 4, + .has_vincom_input = true, + .has_temp = true, + .has_input_buf = true, + .has_int_ref = true, + .clock = 8 * HZ_PER_MHZ, + .sinc5_data_rates = ad4115_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad4115_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad4116_device_info = { + .name = "ad4116", + .id = AD4116_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in_div = 11, + .num_channels = 16, + .num_configs = 8, + .num_voltage_in = 16, + .num_gpios = 4, + .has_vincom_input = true, + .has_temp = true, + .has_input_buf = true, + .has_int_ref = true, + .clock = 4 * HZ_PER_MHZ, + .sinc5_data_rates = ad4116_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad4116_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad7172_2_device_info = { + .name = "ad7172-2", + .id = AD7172_2_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in = 5, + .num_channels = 4, + .num_configs = 4, + .num_gpios = 2, + .has_temp = true, + .has_input_buf = true, + .has_int_ref = true, + .has_pow_supply_monitoring = true, + .clock = 2 * HZ_PER_MHZ, + .sinc5_data_rates = ad7173_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad7172_4_device_info = { + .name = "ad7172-4", + .id = AD7172_4_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in = 9, + .num_channels = 8, + .num_configs = 8, + .num_gpios = 4, + .has_input_buf = true, + .has_ref2 = true, + .has_pow_supply_monitoring = true, + .clock = 2 * HZ_PER_MHZ, + .sinc5_data_rates = ad7173_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad7173_8_device_info = { + .name = "ad7173-8", + .id = AD7173_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in = 17, + .num_channels = 16, + .num_configs = 8, + .num_gpios = 4, + .has_temp = true, + .has_input_buf = true, + .has_int_ref = true, + .has_ref2 = true, + .clock = 2 * HZ_PER_MHZ, + .sinc5_data_rates = ad7173_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad7175_2_device_info = { + .name = "ad7175-2", + .id = AD7175_2_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in = 5, + .num_channels = 4, + .num_configs = 4, + .num_gpios = 2, + .has_temp = true, + .has_input_buf = true, + .has_int_ref = true, + .has_pow_supply_monitoring = true, + .clock = 16 * HZ_PER_MHZ, + .sinc5_data_rates = ad7175_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad7175_8_device_info = { + .name = "ad7175-8", + .id = AD7175_8_ID, + .sd_info = &ad7173_sigma_delta_info_8_slots, + .num_voltage_in = 17, + .num_channels = 16, + .num_configs = 8, + .num_gpios = 4, + .has_temp = true, + .has_input_buf = true, + .has_int_ref = true, + .has_ref2 = true, + .has_pow_supply_monitoring = true, + .clock = 16 * HZ_PER_MHZ, + .sinc5_data_rates = ad7175_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad7176_2_device_info = { + .name = "ad7176-2", + .id = AD7176_ID, + .sd_info = &ad7173_sigma_delta_info_4_slots, + .num_voltage_in = 5, + .num_channels = 4, + .num_configs = 4, + .num_gpios = 2, + .has_int_ref = true, + .clock = 16 * HZ_PER_MHZ, + .sinc5_data_rates = ad7175_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates), +}; + +static const struct ad7173_device_info ad7177_2_device_info = { + .name = "ad7177-2", + .id = AD7177_ID, + .sd_info = &ad7173_sigma_delta_info_4_slots, + .num_voltage_in = 5, + .num_channels = 4, + .num_configs = 4, + .num_gpios = 2, + .has_temp = true, + .has_input_buf = true, + .has_int_ref = true, + .has_pow_supply_monitoring = true, + .clock = 16 * HZ_PER_MHZ, + .odr_start_value = AD7177_ODR_START_VALUE, + .sinc5_data_rates = ad7175_sinc5_data_rates, + .num_sinc5_data_rates = ARRAY_SIZE(ad7175_sinc5_data_rates), }; static int ad7173_setup(struct iio_dev *indio_dev) @@ -1429,9 +1457,7 @@ static int ad7173_probe(struct spi_device *spi) spi->mode = SPI_MODE_3; spi_setup(spi); - st->sigma_delta_info = ad7173_sigma_delta_info; - st->sigma_delta_info.num_slots = st->info->num_configs; - ret = ad_sd_init(&st->sd, indio_dev, spi, &st->sigma_delta_info); + ret = ad_sd_init(&st->sd, indio_dev, spi, st->info->sd_info); if (ret) return ret;