linux-kernel - [PATCH 2/3] i3c: Generate aliases for i3c modules

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Date:   Sat, 22 Feb 2020 11:27:10 +0100
From:   Boris Brezillon <boris.brezillon@...labora.com>
To:     Boris Brezillon <bbrezillon@...nel.org>,
        Przemysław Gaj <pgaj@...ence.com>,
        Vitor Soares <Vitor.Soares@...opsys.com>,
        linux-i3c@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org,
        Boris Brezillon <boris.brezillon@...labora.com>
Subject: [PATCH 2/3] i3c: Generate aliases for i3c modules

This part was missing, thus preventing user space from loading modules
automatically when MODALIAS uevents are received.

Signed-off-by: Boris Brezillon <boris.brezillon@...labora.com>
---
 scripts/mod/devicetable-offsets.c |  7 +++++++
 scripts/mod/file2alias.c          | 19 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index 054405b90ba4..d3c237b9b7c0 100644
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -145,6 +145,13 @@ int main(void)
 	DEVID(i2c_device_id);
 	DEVID_FIELD(i2c_device_id, name);
 
+	DEVID(i3c_device_id);
+	DEVID_FIELD(i3c_device_id, match_flags);
+	DEVID_FIELD(i3c_device_id, dcr);
+	DEVID_FIELD(i3c_device_id, manuf_id);
+	DEVID_FIELD(i3c_device_id, part_id);
+	DEVID_FIELD(i3c_device_id, extra_info);
+
 	DEVID(spi_device_id);
 	DEVID_FIELD(spi_device_id, name);
 
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index c91eba751804..1754de3f119f 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -919,6 +919,24 @@ static int do_i2c_entry(const char *filename, void *symval,
 	return 1;
 }
 
+static int do_i3c_entry(const char *filename, void *symval,
+			char *alias)
+{
+	DEF_FIELD(symval, i3c_device_id, match_flags);
+	DEF_FIELD(symval, i3c_device_id, dcr);
+	DEF_FIELD(symval, i3c_device_id, manuf_id);
+	DEF_FIELD(symval, i3c_device_id, part_id);
+	DEF_FIELD(symval, i3c_device_id, extra_info);
+
+	strcpy(alias, "i3c:");
+	ADD(alias, "dcr", match_flags & I3C_MATCH_DCR, dcr);
+	ADD(alias, "manuf", match_flags & I3C_MATCH_MANUF, dcr);
+	ADD(alias, "part", match_flags & I3C_MATCH_PART, dcr);
+	ADD(alias, "ext", match_flags & I3C_MATCH_EXTRA_INFO, dcr);
+
+	return 1;
+}
+
 /* Looks like: spi:S */
 static int do_spi_entry(const char *filename, void *symval,
 			char *alias)
@@ -1386,6 +1404,7 @@ static const struct devtable devtable[] = {
 	{"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
 	{"rpmsg", SIZE_rpmsg_device_id, do_rpmsg_entry},
 	{"i2c", SIZE_i2c_device_id, do_i2c_entry},
+	{"i3c", SIZE_i3c_device_id, do_i3c_entry},
 	{"spi", SIZE_spi_device_id, do_spi_entry},
 	{"dmi", SIZE_dmi_system_id, do_dmi_entry},
 	{"platform", SIZE_platform_device_id, do_platform_entry},
-- 
2.24.1