[Skiboot] [PATCH 1/4] hdata/i2c: ignore i2c devs marked as unknown in the hdat

[Claudio Carvalho]

Some I2C devices are marked as unknown in the hdat. We don't need to add
them to the device tree, so this just log them.

Signed-off-by: Claudio Carvalho <cclaudio at linux.vnet.ibm.com>
---
 hdata/i2c.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/hdata/i2c.c b/hdata/i2c.c
index cc127d5..bfb5b48 100644
--- a/hdata/i2c.c
+++ b/hdata/i2c.c
@@ -226,6 +226,17 @@ int parse_i2c_devs(const struct HDIF_common_hdr *hdr, int idata_index,
 		 */
 		i2c_addr = dev->i2c_addr >> 1;
 
+		/*
+		 * Some i2c devs are marked as unknown in the hdat.
+		 * Ignoring them.
+		 */
+		if (dev->type == 0xFF) {
+			prlog(PR_INFO, "HDAT I2C: ignoring e%dp%d - unknown@%x "
+			      "(port 0x%x)\n", dev->i2cm_engine,
+			      dev->i2cm_port, i2c_addr, dev->i2c_port);
+			continue;
+		}
+
 		prlog(PR_TRACE, "HDAT I2C: found e%dp%d - %x\n",
 			dev->i2cm_engine, dev->i2cm_port, i2c_addr);
 
-- 
2.7.4