This parses the board revision from the GSC EEPROm model string.
Signed-off-by: Lucas Stach <dev@xxxxxxxxxx>
---
arch/arm/boards/gateworks-ventana/gsc.c | 14 ++++++++++++++
arch/arm/boards/gateworks-ventana/gsc.h | 2 ++
2 files changed, 16 insertions(+)
diff --git a/arch/arm/boards/gateworks-ventana/gsc.c b/arch/arm/boards/gateworks-ventana/gsc.c
index 3614230..92244d1 100644
--- a/arch/arm/boards/gateworks-ventana/gsc.c
+++ b/arch/arm/boards/gateworks-ventana/gsc.c
@@ -65,3 +65,17 @@ int gsc_i2c_write(struct i2c_client *client, u32 addr, const u8 *buf, u16 count)
return ret;
}
+
+char gsc_get_rev(struct i2c_client *client)
+{
+ int i;
+ u8 model[16];
+
+ gsc_i2c_read(client, 0x30, model, 16);
+ for (i = sizeof(model) - 1; i > 0; i--) {
+ if (model[i] >= 'A')
+ return model[i];
+ }
+
+ return 'A';
+}
diff --git a/arch/arm/boards/gateworks-ventana/gsc.h b/arch/arm/boards/gateworks-ventana/gsc.h
index a6e7e22..13f2262 100644
--- a/arch/arm/boards/gateworks-ventana/gsc.h
+++ b/arch/arm/boards/gateworks-ventana/gsc.h
@@ -56,3 +56,5 @@
*/
int gsc_i2c_read(struct i2c_client *client, u32 addr, u8 *buf, u16 count);
int gsc_i2c_write(struct i2c_client *client, u32 addr, const u8 *buf, u16 count);
+
+char gsc_get_rev(struct i2c_client *client);
--
2.9.4
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