linux-kernel - [PATCH v3 1/1] iio: adc: meson: add separate config for axg SoC family

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Message-ID: <20231127235558.71995-1-gnstark@salutedevices.com>
Date:   Tue, 28 Nov 2023 02:55:58 +0300
From:   George Stark <gnstark@...utedevices.com>
To:     <jic23@...nel.org>, <lars@...afoo.de>, <neil.armstrong@...aro.org>,
        <khilman@...libre.com>, <jbrunet@...libre.com>,
        <martin.blumenstingl@...glemail.com>,
        <andriy.shevchenko@...ux.intel.com>, <nuno.sa@...log.com>,
        <u.kleine-koenig@...gutronix.de>, <gnstark@...utedevices.com>
CC:     <linux-iio@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-amlogic@...ts.infradead.org>, <kernel@...utedevices.com>
Subject: [PATCH v3 1/1] iio: adc: meson: add separate config for axg SoC family

According to Amlogic custom kernels ADC of axg SoC family has
vref_select and requires this setting to work nominally and thus
needs a separate config.

Fixes: 90c6241860bf ("iio: adc: meson: init voltage control bits")
Signed-off-by: George Stark <gnstark@...utedevices.com>
Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 drivers/iio/adc/meson_saradc.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index db280da9edbf..34555a85f131 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -1242,6 +1242,20 @@ static const struct meson_sar_adc_param meson_sar_adc_gxl_param = {
 	.cmv_select = 1,
 };
 
+static const struct meson_sar_adc_param meson_sar_adc_axg_param = {
+	.has_bl30_integration = true,
+	.clock_rate = 1200000,
+	.bandgap_reg = MESON_SAR_ADC_REG11,
+	.regmap_config = &meson_sar_adc_regmap_config_gxbb,
+	.resolution = 12,
+	.disable_ring_counter = 1,
+	.has_reg11 = true,
+	.vref_volatge = 1,
+	.has_vref_select = true,
+	.vref_select = VREF_VDDA,
+	.cmv_select = 1,
+};
+
 static const struct meson_sar_adc_param meson_sar_adc_g12a_param = {
 	.has_bl30_integration = false,
 	.clock_rate = 1200000,
@@ -1286,7 +1300,7 @@ static const struct meson_sar_adc_data meson_sar_adc_gxm_data = {
 };
 
 static const struct meson_sar_adc_data meson_sar_adc_axg_data = {
-	.param = &meson_sar_adc_gxl_param,
+	.param = &meson_sar_adc_axg_param,
 	.name = "meson-axg-saradc",
 };
 
-- 
2.38.4