From: Billy Tsai <billy_tsai@aspeedtech.com> To: <jic23@kernel.org>, <lars@metafoo.de>, <pmeerw@pmeerw.net>, <robh+dt@kernel.org>, <joel@jms.id.au>, <andrew@aj.id.au>, <p.zabel@pengutronix.de>, <lgirdwood@gmail.com>, <broonie@kernel.org>, <linux-iio@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org> Cc: <BMC-SW@aspeedtech.com> Subject: [v5 05/15] iio: adc: aspeed: Refactory model data structure Date: Tue, 31 Aug 2021 15:14:48 +0800 [thread overview] Message-ID: <20210831071458.2334-6-billy_tsai@aspeedtech.com> (raw) In-Reply-To: <20210831071458.2334-1-billy_tsai@aspeedtech.com> This patch refactors the model data structure to distinguish the function form different versions of aspeed ADC. - Rename the vref_voltage to vref_fixed_mv and add vref_mv driver data When driver probe will check vref_fixed_mv value and store it to vref_mv which isn't const value. - Add num_channels Make num_channles of iio device can be changed by different model_data - Add need_prescaler flag and scaler_bit_width The need_prescaler flag is used to tell the driver the clock divider needs another Prescaler and the scaler_bit_width to set the clock divider bitfield width. Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> --- drivers/iio/adc/aspeed_adc.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c index 76ae1c3f584b..6ce2f676c54a 100644 --- a/drivers/iio/adc/aspeed_adc.c +++ b/drivers/iio/adc/aspeed_adc.c @@ -71,8 +71,11 @@ struct aspeed_adc_model_data { const char *model_name; unsigned int min_sampling_rate; // Hz unsigned int max_sampling_rate; // Hz - unsigned int vref_voltage; // mV + unsigned int vref_fixed_mv; bool wait_init_sequence; + bool need_prescaler; + u8 scaler_bit_width; + unsigned int num_channels; }; struct aspeed_adc_data { @@ -83,6 +86,7 @@ struct aspeed_adc_data { struct clk_hw *clk_prescaler; struct clk_hw *clk_scaler; struct reset_control *rst; + int vref_mv; }; #define ASPEED_CHAN(_idx, _data_reg_addr) { \ @@ -126,7 +130,7 @@ static int aspeed_adc_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - *val = data->model_data->vref_voltage; + *val = data->model_data->vref_fixed_mv; *val2 = ASPEED_RESOLUTION_BITS; return IIO_VAL_FRACTIONAL_LOG2; @@ -320,17 +324,23 @@ static int aspeed_adc_remove(struct platform_device *pdev) static const struct aspeed_adc_model_data ast2400_model_data = { .model_name = "ast2400-adc", - .vref_voltage = 2500, // mV + .vref_fixed_mv = 2500, .min_sampling_rate = 10000, .max_sampling_rate = 500000, + .need_prescaler = true, + .scaler_bit_width = 10, + .num_channels = 16, }; static const struct aspeed_adc_model_data ast2500_model_data = { .model_name = "ast2500-adc", - .vref_voltage = 1800, // mV + .vref_fixed_mv = 1800, .min_sampling_rate = 1, .max_sampling_rate = 1000000, .wait_init_sequence = true, + .need_prescaler = true, + .scaler_bit_width = 10, + .num_channels = 16, }; static const struct of_device_id aspeed_adc_matches[] = { -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Billy Tsai <billy_tsai@aspeedtech.com> To: <jic23@kernel.org>, <lars@metafoo.de>, <pmeerw@pmeerw.net>, <robh+dt@kernel.org>, <joel@jms.id.au>, <andrew@aj.id.au>, <p.zabel@pengutronix.de>, <lgirdwood@gmail.com>, <broonie@kernel.org>, <linux-iio@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org> Cc: <BMC-SW@aspeedtech.com> Subject: [v5 05/15] iio: adc: aspeed: Refactory model data structure Date: Tue, 31 Aug 2021 15:14:48 +0800 [thread overview] Message-ID: <20210831071458.2334-6-billy_tsai@aspeedtech.com> (raw) In-Reply-To: <20210831071458.2334-1-billy_tsai@aspeedtech.com> This patch refactors the model data structure to distinguish the function form different versions of aspeed ADC. - Rename the vref_voltage to vref_fixed_mv and add vref_mv driver data When driver probe will check vref_fixed_mv value and store it to vref_mv which isn't const value. - Add num_channels Make num_channles of iio device can be changed by different model_data - Add need_prescaler flag and scaler_bit_width The need_prescaler flag is used to tell the driver the clock divider needs another Prescaler and the scaler_bit_width to set the clock divider bitfield width. Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> --- drivers/iio/adc/aspeed_adc.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c index 76ae1c3f584b..6ce2f676c54a 100644 --- a/drivers/iio/adc/aspeed_adc.c +++ b/drivers/iio/adc/aspeed_adc.c @@ -71,8 +71,11 @@ struct aspeed_adc_model_data { const char *model_name; unsigned int min_sampling_rate; // Hz unsigned int max_sampling_rate; // Hz - unsigned int vref_voltage; // mV + unsigned int vref_fixed_mv; bool wait_init_sequence; + bool need_prescaler; + u8 scaler_bit_width; + unsigned int num_channels; }; struct aspeed_adc_data { @@ -83,6 +86,7 @@ struct aspeed_adc_data { struct clk_hw *clk_prescaler; struct clk_hw *clk_scaler; struct reset_control *rst; + int vref_mv; }; #define ASPEED_CHAN(_idx, _data_reg_addr) { \ @@ -126,7 +130,7 @@ static int aspeed_adc_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - *val = data->model_data->vref_voltage; + *val = data->model_data->vref_fixed_mv; *val2 = ASPEED_RESOLUTION_BITS; return IIO_VAL_FRACTIONAL_LOG2; @@ -320,17 +324,23 @@ static int aspeed_adc_remove(struct platform_device *pdev) static const struct aspeed_adc_model_data ast2400_model_data = { .model_name = "ast2400-adc", - .vref_voltage = 2500, // mV + .vref_fixed_mv = 2500, .min_sampling_rate = 10000, .max_sampling_rate = 500000, + .need_prescaler = true, + .scaler_bit_width = 10, + .num_channels = 16, }; static const struct aspeed_adc_model_data ast2500_model_data = { .model_name = "ast2500-adc", - .vref_voltage = 1800, // mV + .vref_fixed_mv = 1800, .min_sampling_rate = 1, .max_sampling_rate = 1000000, .wait_init_sequence = true, + .need_prescaler = true, + .scaler_bit_width = 10, + .num_channels = 16, }; static const struct of_device_id aspeed_adc_matches[] = { -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-08-31 7:15 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-31 7:14 [v5 00/15] Add support for ast2600 ADC Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:14 ` [v5 01/15] iio: adc: aspeed: set driver data when adc probe Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-09-05 14:25 ` Jonathan Cameron 2021-09-05 14:25 ` Jonathan Cameron 2021-08-31 7:14 ` [v5 02/15] dt-bindings: iio: adc: Add ast2600-adc bindings Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-09-01 1:38 ` Rob Herring 2021-09-01 1:38 ` Rob Herring 2021-09-05 14:27 ` Jonathan Cameron 2021-09-05 14:27 ` Jonathan Cameron 2021-08-31 7:14 ` [v5 03/15] iio: adc: aspeed: completes the bitfield declare Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-09-05 14:30 ` Jonathan Cameron 2021-09-05 14:30 ` Jonathan Cameron 2021-08-31 7:14 ` [v5 04/15] iio: adc: aspeed: Keep model data to driver data Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-09-05 14:33 ` Jonathan Cameron 2021-09-05 14:33 ` Jonathan Cameron 2021-09-05 14:50 ` Jonathan Cameron 2021-09-05 14:50 ` Jonathan Cameron 2021-09-16 3:52 ` Joel Stanley 2021-09-16 3:52 ` Joel Stanley 2021-09-18 17:55 ` Jonathan Cameron 2021-09-18 17:55 ` Jonathan Cameron 2021-08-31 7:14 ` Billy Tsai [this message] 2021-08-31 7:14 ` [v5 05/15] iio: adc: aspeed: Refactory model data structure Billy Tsai 2021-09-05 14:37 ` Jonathan Cameron 2021-09-05 14:37 ` Jonathan Cameron 2021-08-31 7:14 ` [v5 06/15] iio: adc: aspeed: Add vref config function Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:14 ` [v5 07/15] iio: adc: aspeed: Set num_channels with model data Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:14 ` [v5 08/15] iio: adc: aspeed: Use model_data to set clk scaler Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:14 ` [v5 09/15] iio: adc: aspeed: Use devm_add_action_or_reset Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:51 ` Philipp Zabel 2021-08-31 7:51 ` Philipp Zabel 2021-08-31 7:14 ` [v5 10/15] iio: adc: aspeed: Support ast2600 adc Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:14 ` [v5 11/15] iio: adc: aspeed: Fix the calculate error of clock Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-09-05 14:47 ` Jonathan Cameron 2021-09-05 14:47 ` Jonathan Cameron 2021-08-31 7:14 ` [v5 12/15] iio: adc: aspeed: Add func to set sampling rate Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:14 ` [v5 13/15] iio: adc: aspeed: Add compensation phase Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:14 ` [v5 14/15] iio: adc: aspeed: Support battery sensing Billy Tsai 2021-08-31 7:14 ` Billy Tsai 2021-08-31 7:14 ` [v5 15/15] iio: adc: aspeed: Get and set trimming data Billy Tsai 2021-08-31 7:14 ` Billy Tsai
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