[PATCH v2 5/6] board: phytec: common: phytec_som_detection: Add helper for PCB revision

[Teresa Remmet]

Add helper function to read out the PCB revision of a PHYTEC SoM.

Signed-off-by: Teresa Remmet <t.remmet at phytec.de>
---
Changes in v2:
- none
---
 board/phytec/common/phytec_som_detection.c | 15 +++++++++++++++
 board/phytec/common/phytec_som_detection.h |  5 +++++
 2 files changed, 20 insertions(+)

diff --git a/board/phytec/common/phytec_som_detection.c b/board/phytec/common/phytec_som_detection.c
index 366bdd4ace4b..55562731270b 100644
--- a/board/phytec/common/phytec_som_detection.c
+++ b/board/phytec/common/phytec_som_detection.c
@@ -186,3 +186,18 @@ char * __maybe_unused phytec_get_opt(struct phytec_eeprom_data *data)
 
 	return opt;
 }
+
+u8 __maybe_unused phytec_get_rev(struct phytec_eeprom_data *data)
+{
+	struct phytec_api2_data *api2;
+
+	if (!data)
+		data = &eeprom_data;
+
+	if (data->api_rev < PHYTEC_API_REV2)
+		return PHYTEC_EEPROM_INVAL;
+
+	api2 = &data->data.data_api2;
+
+	return api2->pcb_rev;
+}
diff --git a/board/phytec/common/phytec_som_detection.h b/board/phytec/common/phytec_som_detection.h
index 01f7e4652ddb..c68e2302cc42 100644
--- a/board/phytec/common/phytec_som_detection.h
+++ b/board/phytec/common/phytec_som_detection.h
@@ -68,6 +68,7 @@ int phytec_eeprom_data_init(struct phytec_eeprom_data *data,
 void __maybe_unused phytec_print_som_info(struct phytec_eeprom_data *data);
 
 char * __maybe_unused phytec_get_opt(struct phytec_eeprom_data *data);
+u8 __maybe_unused phytec_get_rev(struct phytec_eeprom_data *data);
 
 #else
 
@@ -99,6 +100,10 @@ inline char *__maybe_unused phytec_get_opt(struct phytec_eeprom_data *data)
 	return NULL;
 }
 
+u8 __maybe_unused phytec_get_rev(struct phytec_eeprom_data *data)
+{
+	return PHYTEC_EEPROM_INVAL;
+}
 #endif /* IS_ENABLED(CONFIG_PHYTEC_SOM_DETECTION) */
 
 #endif /* _PHYTEC_SOM_DETECTION_H */
-- 
2.34.1