This is a note to let you know that I've just added the patch titled
iio: adc: meson-saradc: Meson8 and Meson8b do not have REG11 and
to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From 96748823c483c6eed8321f78bd128dd33f09c55c Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl martin.blumenstingl@googlemail.com Date: Tue, 31 Oct 2017 21:01:45 +0100 Subject: iio: adc: meson-saradc: Meson8 and Meson8b do not have REG11 and REG13
The Meson GXBB and newer SoCs have a few more registers than the older Meson8 and Meson8b SoCs. Use a separate regmap config to limit the older SoCs to the DELTA_10 register.
Fixes: 6c76ed31cd05 ("iio: adc: meson-saradc: add Meson8b SoC compatibility") Signed-off-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- drivers/iio/adc/meson_saradc.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index a220d07d890f..36047147ce7c 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -224,6 +224,7 @@ struct meson_sar_adc_data { u32 bandgap_reg; unsigned int resolution; const char *name; + const struct regmap_config *regmap_config; };
struct meson_sar_adc_priv { @@ -243,13 +244,20 @@ struct meson_sar_adc_priv { int calibscale; };
-static const struct regmap_config meson_sar_adc_regmap_config = { +static const struct regmap_config meson_sar_adc_regmap_config_gxbb = { .reg_bits = 8, .val_bits = 32, .reg_stride = 4, .max_register = MESON_SAR_ADC_REG13, };
+static const struct regmap_config meson_sar_adc_regmap_config_meson8 = { + .reg_bits = 8, + .val_bits = 32, + .reg_stride = 4, + .max_register = MESON_SAR_ADC_DELTA_10, +}; + static unsigned int meson_sar_adc_get_fifo_count(struct iio_dev *indio_dev) { struct meson_sar_adc_priv *priv = iio_priv(indio_dev); @@ -859,6 +867,7 @@ static const struct iio_info meson_sar_adc_iio_info = { static const struct meson_sar_adc_data meson_sar_adc_meson8_data = { .has_bl30_integration = false, .bandgap_reg = MESON_SAR_ADC_DELTA_10, + .regmap_config = &meson_sar_adc_regmap_config_meson8, .resolution = 10, .name = "meson-meson8-saradc", }; @@ -866,6 +875,7 @@ static const struct meson_sar_adc_data meson_sar_adc_meson8_data = { static const struct meson_sar_adc_data meson_sar_adc_meson8b_data = { .has_bl30_integration = false, .bandgap_reg = MESON_SAR_ADC_DELTA_10, + .regmap_config = &meson_sar_adc_regmap_config_meson8, .resolution = 10, .name = "meson-meson8b-saradc", }; @@ -873,6 +883,7 @@ static const struct meson_sar_adc_data meson_sar_adc_meson8b_data = { static const struct meson_sar_adc_data meson_sar_adc_gxbb_data = { .has_bl30_integration = true, .bandgap_reg = MESON_SAR_ADC_REG11, + .regmap_config = &meson_sar_adc_regmap_config_gxbb, .resolution = 10, .name = "meson-gxbb-saradc", }; @@ -880,6 +891,7 @@ static const struct meson_sar_adc_data meson_sar_adc_gxbb_data = { static const struct meson_sar_adc_data meson_sar_adc_gxl_data = { .has_bl30_integration = true, .bandgap_reg = MESON_SAR_ADC_REG11, + .regmap_config = &meson_sar_adc_regmap_config_gxbb, .resolution = 12, .name = "meson-gxl-saradc", }; @@ -887,6 +899,7 @@ static const struct meson_sar_adc_data meson_sar_adc_gxl_data = { static const struct meson_sar_adc_data meson_sar_adc_gxm_data = { .has_bl30_integration = true, .bandgap_reg = MESON_SAR_ADC_REG11, + .regmap_config = &meson_sar_adc_regmap_config_gxbb, .resolution = 12, .name = "meson-gxm-saradc", }; @@ -964,7 +977,7 @@ static int meson_sar_adc_probe(struct platform_device *pdev) return ret;
priv->regmap = devm_regmap_init_mmio(&pdev->dev, base, - &meson_sar_adc_regmap_config); + priv->data->regmap_config); if (IS_ERR(priv->regmap)) return PTR_ERR(priv->regmap);