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authorThomas Bogendoerfer <tbogendoerfer@suse.de>2019-08-31 11:26:21 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-09-04 15:34:31 +0300
commit74ded38a8e185b57a4362787815c353ac595013c (patch)
tree801f3108756dd1ff3719fa02753cddc9596f5cea /include/linux/platform_data/sgi-w1.h
parent836e9494f4485127a5b505ae57e4387bea8b53c4 (diff)
downloadlinux-74ded38a8e185b57a4362787815c353ac595013c.tar.xz
w1: add 1-wire master driver for IP block found in SGI ASICs
Starting with SGI Origin machines nearly every new SGI ASIC contains an 1-Wire master. They are used for attaching One-Wire prom devices, which contain information about part numbers, revision numbers, serial number etc. and MAC addresses for ethernet interfaces. This patch adds a master driver to support this IP block. It also adds an extra field dev_id to struct w1_bus_master, which could be in used in slave drivers for creating unique device names. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Link: https://lore.kernel.org/r/20190831082623.15627-2-tbogendoerfer@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/platform_data/sgi-w1.h')
-rw-r--r--include/linux/platform_data/sgi-w1.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/platform_data/sgi-w1.h b/include/linux/platform_data/sgi-w1.h
new file mode 100644
index 000000000000..e28c8a90ff84
--- /dev/null
+++ b/include/linux/platform_data/sgi-w1.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * SGI One-Wire (W1) IP
+ */
+
+#ifndef PLATFORM_DATA_SGI_W1_H
+#define PLATFORM_DATA_SGI_W1_H
+
+struct sgi_w1_platform_data {
+ char dev_id[64];
+};
+
+#endif /* PLATFORM_DATA_SGI_W1_H */