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rtc: s3c: remove warning message when checking coding style with checkpatch script 

Remove warning message when checking codeing style with checkpatch script
and reduce un-necessary i2c read operation on s3c_rtc_enable.

    WARNING: line over 80 characters
    #406: FILE: drivers/rtc/rtc-s3c.c:406:
    +		if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0) {

    WARNING: line over 80 characters
    #414: FILE: drivers/rtc/rtc-s3c.c:414:
    +		if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)) {

    WARNING: line over 80 characters
    #422: FILE: drivers/rtc/rtc-s3c.c:422:
    +		if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)) {

    WARNING: Missing a blank line after declarations
    #451: FILE: drivers/rtc/rtc-s3c.c:451:
    +	struct s3c_rtc_drv_data *data;
    +	if (pdev->dev.of_node) {

    WARNING: Missing a blank line after declarations
    #453: FILE: drivers/rtc/rtc-s3c.c:453:
    +		const struct of_device_id *match;
    +		match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node);

    WARNING: DT compatible string "samsung,s3c2416-rtc" appears un-documented -- check ./Documentation/devicetree/bindings/
    #650: FILE: drivers/rtc/rtc-s3c.c:650:
    +		.compatible = "samsung,s3c2416-rtc",

    WARNING: DT compatible string "samsung,s3c2443-rtc" appears un-documented -- check ./Documentation/devicetree/bindings/
    #653: FILE: drivers/rtc/rtc-s3c.c:653:
    +		.compatible = "samsung,s3c2443-rtc",

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Chanwoo Choi 2014-10-13 15:52:31 -07:00 committed by Linus Torvalds
parent 19be09f51d
commit d67288da51
2 changed files with 16 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/devicetree/bindings/rtc/s3c-rtc.txt
View File

@ -3,6 +3,8 @@
Required properties:
- compatible: should be one of the following.
* "samsung,s3c2410-rtc" - for controllers compatible with s3c2410 rtc.
* "samsung,s3c2416-rtc" - for controllers compatible with s3c2416 rtc.
* "samsung,s3c2443-rtc" - for controllers compatible with s3c2443 rtc.
* "samsung,s3c6410-rtc" - for controllers compatible with s3c6410 rtc.
- reg: physical base address of the controller and length of memory mapped
region.

26
drivers/rtc/rtc-s3c.c
View File

@ -382,25 +382,25 @@ static const struct rtc_class_ops s3c_rtcops = {
static void s3c_rtc_enable(struct s3c_rtc *info, int en)
{
unsigned int tmp;
unsigned int con, tmp;
clk_enable(info->rtc_clk);
con = readw(info->base + S3C2410_RTCCON);
if (!en) {
tmp = readw(info->base + S3C2410_RTCCON);
if (info->cpu_type == TYPE_S3C64XX)
tmp &= ~S3C64XX_RTCCON_TICEN;
tmp &= ~S3C2410_RTCCON_RTCEN;
writew(tmp, info->base + S3C2410_RTCCON);
con &= ~S3C64XX_RTCCON_TICEN;
con &= ~S3C2410_RTCCON_RTCEN;
writew(con, info->base + S3C2410_RTCCON);
if (info->cpu_type != TYPE_S3C64XX) {
tmp = readb(info->base + S3C2410_TICNT);
tmp &= ~S3C2410_TICNT_ENABLE;
writeb(tmp, info->base + S3C2410_TICNT);
con = readb(info->base + S3C2410_TICNT);
con &= ~S3C2410_TICNT_ENABLE;
writeb(con, info->base + S3C2410_TICNT);
}
} else {
/* re-enable the device, and check it is ok */
if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0) {
if ((con & S3C2410_RTCCON_RTCEN) == 0) {
dev_info(info->dev, "rtc disabled, re-enabling\n");
tmp = readw(info->base + S3C2410_RTCCON);
@ -408,7 +408,7 @@ static void s3c_rtc_enable(struct s3c_rtc *info, int en)
info->base + S3C2410_RTCCON);
}
if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)) {
if (con & S3C2410_RTCCON_CNTSEL) {
dev_info(info->dev, "removing RTCCON_CNTSEL\n");
tmp = readw(info->base + S3C2410_RTCCON);
@ -416,7 +416,7 @@ static void s3c_rtc_enable(struct s3c_rtc *info, int en)
info->base + S3C2410_RTCCON);
}
if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)) {
if (con & S3C2410_RTCCON_CLKRST) {
dev_info(info->dev, "removing RTCCON_CLKRST\n");
tmp = readw(info->base + S3C2410_RTCCON);
@ -445,8 +445,10 @@ static inline int s3c_rtc_get_driver_data(struct platform_device *pdev)
{
#ifdef CONFIG_OF
struct s3c_rtc_drv_data *data;
if (pdev->dev.of_node) {
const struct of_device_id *match;
match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node);
data = (struct s3c_rtc_drv_data *) match->data;
return data->cpu_type;