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rtc: rtc-sh: Support 4-digit year on SH7705/SH7710/SH7712.

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All SH-4 parts have a 4-digit year, while the SH-3 parts typically
only use a 2-digit one. The SH7705, SH7710, and SH7712 SH-3 parts
however opted to extend it to 4-digit and still look and act like
an SH-3 RTC in all other ways.

This adds a capability flag (RTC_CAP_4_DIGIT_YEAR) that these
corner-case CPU subtypes can set in their platform data and cleans
up some of the ifdef mess in the driver as a result.

Reported-by: Markus Brunner <super.firetwister@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2007-08-03 14:19:58 +09:00
parent 7da3b8ef66
commit ad89f87a84
4 changed files with 58 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/sh/kernel/cpu/sh3/setup-sh7705.c
View File

@@ -1,7 +1,7 @@
/*
* SH7705 Setup
*
* Copyright (C) 2006 Paul Mundt
* Copyright (C) 2006, 2007 Paul Mundt
* Copyright (C) 2007 Nobuhiro Iwamatsu
*
* This file is subject to the terms and conditions of the GNU General Public
@@ -13,8 +13,9 @@
#include <linux/irq.h>
#include <linux/serial.h>
#include <asm/sci.h>
#include <asm/rtc.h>
enum{
enum {
UNUSED = 0,
/* interrupt sources */
@@ -138,11 +139,18 @@ static struct resource rtc_resources[] = {
},
};
static struct sh_rtc_platform_info rtc_info = {
.capabilities = RTC_CAP_4_DIGIT_YEAR,
};
static struct platform_device rtc_device = {
.name = "sh-rtc",
.id = -1,
.num_resources = ARRAY_SIZE(rtc_resources),
.resource = rtc_resources,
.dev = {
.platform_data = &rtc_info,
},
};
static struct platform_device *sh7705_devices[] __initdata = {

10
arch/sh/kernel/cpu/sh3/setup-sh7710.c
View File

@@ -1,7 +1,7 @@
/*
* SH3 Setup code for SH7710, SH7712
*
* Copyright (C) 2006 Paul Mundt
* Copyright (C) 2006, 2007 Paul Mundt
* Copyright (C) 2007 Nobuhiro Iwamatsu
*
* This file is subject to the terms and conditions of the GNU General Public
@@ -13,6 +13,7 @@
#include <linux/irq.h>
#include <linux/serial.h>
#include <asm/sci.h>
#include <asm/rtc.h>
enum {
UNUSED = 0,
@@ -130,11 +131,18 @@ static struct resource rtc_resources[] = {
},
};
static struct sh_rtc_platform_info rtc_info = {
.capabilities = RTC_CAP_4_DIGIT_YEAR,
};
static struct platform_device rtc_device = {
.name = "sh-rtc",
.id = -1,
.num_resources = ARRAY_SIZE(rtc_resources),
.resource = rtc_resources,
.dev = {
.platform_data = &rtc_info,
},
};
static struct plat_sci_port sci_platform_data[] = {