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x86/platform/ts5500: Add a 'name' sysfs attribute

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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@savoirfairelinux.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Savoir-faire Linux Inc. <kernel@savoirfairelinux.com>
Link: http://lkml.kernel.org/r/1404860269-11837-3-git-send-email-vivien.didelot@savoirfairelinux.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Vivien Didelot 2014-07-08 18:57:48 -04:00 committed by Ingo Molnar
parent 1d2408754d
commit 84e288d418
2 changed files with 25 additions and 5 deletions
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7
Documentation/ABI/testing/sysfs-platform-ts5500
View file

@ -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@savoirfairelinux.com>
Description:
Model name of the TS board, e.g. "TS-5500".
What: /sys/devices/platform/ts5500/rs485
Date: January 2013
KernelVersion: 3.7

23
arch/x86/platform/ts5500/ts5500.c
View file

@ -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@savoirfairelinux.com>
*
* 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,