[PATCH 6/6] iio:pressure:ms5637: add ms5803 support

[Alexandre Belloni]

The ms5803 is very similar to the ms5805 but has less resolution options
and has the 128bit PROM layout.

Cc: Rob Herring <robh+dt at kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni at bootlin.com>
---
 Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++
 drivers/iio/pressure/ms5637.c                          | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index ab623ba930d5..84b0e44235c1 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -132,6 +132,8 @@ properties:
           - mcube,mc3230
             # MEMSIC 2-axis 8-bit digital accelerometer
           - memsic,mxc6225
+            # Measurement Specialities I2C pressure and temperature sensor
+          - meas,ms5803
             # Microchip differential I2C ADC, 1 Channel, 18 bit
           - microchip,mcp3421
             # Microchip differential I2C ADC, 2 Channel, 18 bit
diff --git a/drivers/iio/pressure/ms5637.c b/drivers/iio/pressure/ms5637.c
index 2943b88734b3..39830a51ca78 100644
--- a/drivers/iio/pressure/ms5637.c
+++ b/drivers/iio/pressure/ms5637.c
@@ -192,8 +192,15 @@ static const struct ms_tp_hw_data ms5637_hw_data  = {
 	.max_res_index = 5
 };
 
+static const struct ms_tp_hw_data ms5803_hw_data  = {
+	.prom_len = 8,
+	.max_res_index = 4
+};
+
 static const struct ms_tp_data ms5637_data = { .name = "ms5637", .hw = &ms5637_hw_data };
 
+static const struct ms_tp_data ms5803_data = { .name = "ms5803", .hw = &ms5803_hw_data };
+
 static const struct ms_tp_data ms5805_data = { .name = "ms5805", .hw = &ms5637_hw_data };
 
 static const struct ms_tp_data ms5837_data = { .name = "ms5837", .hw = &ms5637_hw_data };
@@ -205,6 +212,7 @@ static const struct ms_tp_data ms8607_data = {
 
 static const struct of_device_id ms5637_of_match[] = {
 	{ .compatible = "meas,ms5637", .data = &ms5637_data },
+	{ .compatible = "meas,ms5803", .data = &ms5803_data },
 	{ .compatible = "meas,ms5805", .data = &ms5805_data },
 	{ .compatible = "meas,ms5837", .data = &ms5837_data },
 	{ .compatible = "meas,ms8607-temppressure", .data = &ms8607_data },
-- 
2.28.0