[v5 04/15] iio: adc: aspeed: Keep model data to driver data.

Jonathan Cameron
2021-09-05T14:33:39Z

On Tue, 31 Aug 2021 15:14:47 +0800
Billy Tsai <billy_tsai@aspeedtech.com> wrote:

> Keep the model data pointer to driver data for reducing the usage of
> of_device_get_match_data().
>
> Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
This one starts to be impacted by the fix (as its in the context).
Rather than making a mess of things for linux-next etc I'll hold
off on these until that fix is upstream in a few weeks.

If I seem to have lost it (it's been known to happen :( ) then
feel free to poke me!

Thanks,

Jonathan
> ---
> drivers/iio/adc/aspeed_adc.c | 20 +++++++-------------
> 1 file changed, 7 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
> index f055fe7b2c40..76ae1c3f584b 100644
> --- a/drivers/iio/adc/aspeed_adc.c
> +++ b/drivers/iio/adc/aspeed_adc.c
> @@ -77,6 +77,7 @@ struct aspeed_adc_model_data {
>
> struct aspeed_adc_data {
> struct device *dev;
> + const struct aspeed_adc_model_data *model_data;
> void __iomem *base;
> spinlock_t clk_lock;
> struct clk_hw *clk_prescaler;
> @@ -118,8 +119,6 @@ static int aspeed_adc_read_raw(struct iio_dev *indio_dev,
> int *val, int *val2, long mask)
> {
> struct aspeed_adc_data *data = iio_priv(indio_dev);
> - const struct aspeed_adc_model_data *model_data =
> - of_device_get_match_data(data->dev);
>
> switch (mask) {
> case IIO_CHAN_INFO_RAW:
> @@ -127,7 +126,7 @@ static int aspeed_adc_read_raw(struct iio_dev *indio_dev,
> return IIO_VAL_INT;
>
> case IIO_CHAN_INFO_SCALE:
> - *val = model_data->vref_voltage;
> + *val = data->model_data->vref_voltage;
> *val2 = ASPEED_RESOLUTION_BITS;
> return IIO_VAL_FRACTIONAL_LOG2;
>
> @@ -146,13 +145,11 @@ static int aspeed_adc_write_raw(struct iio_dev *indio_dev,
> int val, int val2, long mask)
> {
> struct aspeed_adc_data *data = iio_priv(indio_dev);
> - const struct aspeed_adc_model_data *model_data =
> - of_device_get_match_data(data->dev);
>
> switch (mask) {
> case IIO_CHAN_INFO_SAMP_FREQ:
> - if (val < model_data->min_sampling_rate ||
> - val > model_data->max_sampling_rate)
> + if (val < data->model_data->min_sampling_rate ||
> + val > data->model_data->max_sampling_rate)
> return -EINVAL;
>
> clk_set_rate(data->clk_scaler->clk,
> @@ -198,7 +195,6 @@ static int aspeed_adc_probe(struct platform_device *pdev)
> {
> struct iio_dev *indio_dev;
> struct aspeed_adc_data *data;
> - const struct aspeed_adc_model_data *model_data;
> const char *clk_parent_name;
> int ret;
> u32 adc_engine_control_reg_val;
> @@ -209,6 +205,7 @@ static int aspeed_adc_probe(struct platform_device *pdev)
>
> data = iio_priv(indio_dev);
> data->dev = &pdev->dev;
> + data->model_data = of_device_get_match_data(&pdev->dev);
> platform_set_drvdata(pdev, indio_dev);
>
> data->base = devm_platform_ioremap_resource(pdev, 0);
> @@ -249,9 +246,7 @@ static int aspeed_adc_probe(struct platform_device *pdev)
> }
> reset_control_deassert(data->rst);
>
> - model_data = of_device_get_match_data(&pdev->dev);
> -
> - if (model_data->wait_init_sequence) {
> + if (data->model_data->wait_init_sequence) {
> /* Enable engine in normal mode. */
> writel(FIELD_PREP(ASPEED_ADC_OP_MODE,
> ASPEED_ADC_OP_MODE_NORMAL) |
> @@ -281,8 +276,7 @@ static int aspeed_adc_probe(struct platform_device *pdev)
> writel(adc_engine_control_reg_val,
> data->base + ASPEED_REG_ENGINE_CONTROL);
>
> - model_data = of_device_get_match_data(&pdev->dev);
> - indio_dev->name = model_data->model_name;
> + indio_dev->name = data->model_data->model_name;
> indio_dev->info = &aspeed_adc_iio_info;
> indio_dev->modes = INDIO_DIRECT_MODE;
> indio_dev->channels = aspeed_adc_iio_channels;