[PATCH 4.19 088/190] iio: adc: exynos-adc: Add S5PV210 variant

Greg Kroah-Hartman
2019-09-13T13:15:15Z

[ Upstream commit 882bf52fdeab47dbe991cc0e564b0b51c571d0a3 ]

S5PV210's ADC variant is almost the same as v1 except that it has 10
channels and doesn't require the pmu register

Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/exynos_adc.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 4be29ed447559..41da522fc6735 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -115,6 +115,7 @@
#define MAX_ADC_V2_CHANNELS 10
#define MAX_ADC_V1_CHANNELS 8
#define MAX_EXYNOS3250_ADC_CHANNELS 2
+#define MAX_S5PV210_ADC_CHANNELS 10

/* Bit definitions common for ADC_V1 and ADC_V2 */
#define ADC_CON_EN_START (1u << 0)
@@ -282,6 +283,16 @@ static const struct exynos_adc_data exynos_adc_v1_data = {
.start_conv = exynos_adc_v1_start_conv,
};

+static const struct exynos_adc_data exynos_adc_s5pv210_data = {
+ .num_channels = MAX_S5PV210_ADC_CHANNELS,
+ .mask = ADC_DATX_MASK, /* 12 bit ADC resolution */
+
+ .init_hw = exynos_adc_v1_init_hw,
+ .exit_hw = exynos_adc_v1_exit_hw,
+ .clear_irq = exynos_adc_v1_clear_irq,
+ .start_conv = exynos_adc_v1_start_conv,
+};
+
static void exynos_adc_s3c2416_start_conv(struct exynos_adc *info,
unsigned long addr)
{
@@ -478,6 +489,9 @@ static const struct of_device_id exynos_adc_match[] = {
}, {
.compatible = "samsung,s3c6410-adc",
.data = &exynos_adc_s3c64xx_data,
+ }, {
+ .compatible = "samsung,s5pv210-adc",
+ .data = &exynos_adc_s5pv210_data,
}, {
.compatible = "samsung,exynos-adc-v1",
.data = &exynos_adc_v1_data,
--
2.20.1