Commit-ID: 84e288d41871cfb7a21cb7e6dee9e3884b59b25f
Gitweb: http://git.kernel.org/tip/84e288d41871cfb7a21cb7e6dee9e3884b59b25f
Author: Vivien Didelot <vivien.didelot@xxxxxxxxxxxxxxxxxxxx>
AuthorDate: Tue, 8 Jul 2014 18:57:48 -0400
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 16 Jul 2014 21:17:41 +0200
x86/platform/ts5500: Add a 'name' sysfs attribute
Add a new "name" attribute to the TS5500 sysfs group, to clarify
which supported board model it is.
Signed-off-by: Vivien Didelot <vivien.didelot@xxxxxxxxxxxxxxxxxxxx>
Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Savoir-faire Linux Inc. <kernel@xxxxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1404860269-11837-3-git-send-email-vivien.didelot@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
Documentation/ABI/testing/sysfs-platform-ts5500 | 7 +++++++
arch/x86/platform/ts5500/ts5500.c | 23 ++++++++++++++++++-----
2 files changed, 25 insertions(+), 5 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-platform-ts5500 b/Documentation/ABI/testing/sysfs-platform-ts5500
index c88375a..e685957 100644
--- a/Documentation/ABI/testing/sysfs-platform-ts5500
+++ b/Documentation/ABI/testing/sysfs-platform-ts5500
@@ -30,6 +30,13 @@ Description:
the corresponding bit is set. For instance, 0x0e means jumpers
2, 3 and 4 are set.
+What: /sys/devices/platform/ts5500/name
+Date: July 2014
+KernelVersion: 3.16
+Contact: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
+Description:
+ Model name of the TS board, e.g. "TS-5500".
+
What: /sys/devices/platform/ts5500/rs485
Date: January 2013
KernelVersion: 3.7
diff --git a/arch/x86/platform/ts5500/ts5500.c b/arch/x86/platform/ts5500/ts5500.c
index 1bbf17b..4eb8eea 100644
--- a/arch/x86/platform/ts5500/ts5500.c
+++ b/arch/x86/platform/ts5500/ts5500.c
@@ -1,7 +1,7 @@
/*
* Technologic Systems TS-5500 Single Board Computer support
*
- * Copyright (C) 2013 Savoir-faire Linux Inc.
+ * Copyright (C) 2013-2014 Savoir-faire Linux Inc.
* Vivien Didelot <vivien.didelot@xxxxxxxxxxxxxxxxxxxx>
*
* This program is free software; you can redistribute it and/or modify it under
@@ -66,6 +66,7 @@
/**
* struct ts5500_sbc - TS-5500 board description
+ * @name: Board model name.
* @id: Board product ID.
* @sram: Flag for SRAM option.
* @rs485: Flag for RS-485 option.
@@ -75,6 +76,7 @@
* @jumpers: Bitfield for jumpers' state.
*/
struct ts5500_sbc {
+ const char *name;
int id;
bool sram;
bool rs485;
@@ -122,13 +124,14 @@ static int __init ts5500_detect_config(struct ts5500_sbc *sbc)
if (!request_region(TS5500_PRODUCT_CODE_ADDR, 4, "ts5500"))
return -EBUSY;
- tmp = inb(TS5500_PRODUCT_CODE_ADDR);
- if (tmp != TS5500_PRODUCT_CODE) {
- pr_err("This platform is not a TS-5500 (found ID 0x%x)\n", tmp);
+ sbc->id = inb(TS5500_PRODUCT_CODE_ADDR);
+ if (sbc->id == TS5500_PRODUCT_CODE) {
+ sbc->name = "TS-5500";
+ } else {
+ pr_err("ts5500: unknown product code 0x%x\n", sbc->id);
ret = -ENODEV;
goto cleanup;
}
- sbc->id = tmp;
tmp = inb(TS5500_SRAM_RS485_ADC_ADDR);
sbc->sram = tmp & TS5500_SRAM;
@@ -147,6 +150,15 @@ cleanup:
return ret;
}
+static ssize_t name_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct ts5500_sbc *sbc = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%s\n", sbc->name);
+}
+static DEVICE_ATTR_RO(name);
+
static ssize_t id_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -183,6 +195,7 @@ TS5500_ATTR_BOOL(itr);
static struct attribute *ts5500_attributes[] = {
&dev_attr_id.attr,
+ &dev_attr_name.attr,
&dev_attr_jumpers.attr,
&dev_attr_sram.attr,
&dev_attr_rs485.attr,
--
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