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mfd: AB3100 register access change to abx500 API

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The interface for the AB3100 is changed to make way for the
ABX500 family of chips: AB3550, AB5500 and future ST-Ericsson
Analog Baseband chips. The register access functions are moved
out to a separate struct abx500_ops. In this way the interface
is moved from the implementation and the sub functionality drivers
can keep their interface intact when chip infrastructure and
communication mechanisms changes. We also define the AB3550
device IDs and the AB3550 platform data struct and convert
the catenated 32bit event to an array of 3 x 8bits.

Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mattias Wallin
2010-05-01 18:26:20 +02:00
committed by Samuel Ortiz
parent 812f9e9d42
commit fa661258a2
8 changed files with 389 additions and 91 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/rtc/rtc-ab3100.c
View File

@@ -45,7 +45,6 @@
*/
static int ab3100_rtc_set_mmss(struct device *dev, unsigned long secs)
{
struct ab3100 *ab3100_data = dev_get_drvdata(dev);
u8 regs[] = {AB3100_TI0, AB3100_TI1, AB3100_TI2,
AB3100_TI3, AB3100_TI4, AB3100_TI5};
unsigned char buf[6];
@@ -61,27 +60,26 @@ static int ab3100_rtc_set_mmss(struct device *dev, unsigned long secs)
buf[5] = (fat_time >> 40) & 0xFF;
for (i = 0; i < 6; i++) {
err = ab3100_set_register_interruptible(ab3100_data,
err = abx500_set_register_interruptible(dev, 0,
regs[i], buf[i]);
if (err)
return err;
}
/* Set the flag to mark that the clock is now set */
return ab3100_mask_and_set_register_interruptible(ab3100_data,
return abx500_mask_and_set_register_interruptible(dev, 0,
AB3100_RTC,
0xFE, 0x01);
0x01, 0x01);
}
static int ab3100_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
struct ab3100 *ab3100_data = dev_get_drvdata(dev);
unsigned long time;
u8 rtcval;
int err;
err = ab3100_get_register_interruptible(ab3100_data,
err = abx500_get_register_interruptible(dev, 0,
AB3100_RTC, &rtcval);
if (err)
return err;
@@ -94,7 +92,7 @@ static int ab3100_rtc_read_time(struct device *dev, struct rtc_time *tm)
u8 buf[6];
/* Read out time registers */
err = ab3100_get_register_page_interruptible(ab3100_data,
err = abx500_get_register_page_interruptible(dev, 0,
AB3100_TI0,
buf, 6);
if (err != 0)
@@ -114,7 +112,6 @@ static int ab3100_rtc_read_time(struct device *dev, struct rtc_time *tm)
static int ab3100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct ab3100 *ab3100_data = dev_get_drvdata(dev);
unsigned long time;
u64 fat_time;
u8 buf[6];
@@ -122,7 +119,7 @@ static int ab3100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
int err;
/* Figure out if alarm is enabled or not */
err = ab3100_get_register_interruptible(ab3100_data,
err = abx500_get_register_interruptible(dev, 0,
AB3100_RTC, &rtcval);
if (err)
return err;
@@ -133,7 +130,7 @@ static int ab3100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
/* No idea how this could be represented */
alarm->pending = 0;
/* Read out alarm registers, only 4 bytes */
err = ab3100_get_register_page_interruptible(ab3100_data,
err = abx500_get_register_page_interruptible(dev, 0,
AB3100_AL0, buf, 4);
if (err)
return err;
@@ -148,7 +145,6 @@ static int ab3100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
static int ab3100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct ab3100 *ab3100_data = dev_get_drvdata(dev);
u8 regs[] = {AB3100_AL0, AB3100_AL1, AB3100_AL2, AB3100_AL3};
unsigned char buf[4];
unsigned long secs;
@@ -165,21 +161,19 @@ static int ab3100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
/* Set the alarm */
for (i = 0; i < 4; i++) {
err = ab3100_set_register_interruptible(ab3100_data,
err = abx500_set_register_interruptible(dev, 0,
regs[i], buf[i]);
if (err)
return err;
}
/* Then enable the alarm */
return ab3100_mask_and_set_register_interruptible(ab3100_data,
AB3100_RTC, ~(1 << 2),
return abx500_mask_and_set_register_interruptible(dev, 0,
AB3100_RTC, (1 << 2),
alarm->enabled << 2);
}
static int ab3100_rtc_irq_enable(struct device *dev, unsigned int enabled)
{
struct ab3100 *ab3100_data = dev_get_drvdata(dev);
/*
* It's not possible to enable/disable the alarm IRQ for this RTC.
* It does not actually trigger any IRQ: instead its only function is
@@ -188,12 +182,12 @@ static int ab3100_rtc_irq_enable(struct device *dev, unsigned int enabled)
* and need to be handled there instead.
*/
if (enabled)
return ab3100_mask_and_set_register_interruptible(ab3100_data,
AB3100_RTC, ~(1 << 2),
return abx500_mask_and_set_register_interruptible(dev, 0,
AB3100_RTC, (1 << 2),
1 << 2);
else
return ab3100_mask_and_set_register_interruptible(ab3100_data,
AB3100_RTC, ~(1 << 2),
return abx500_mask_and_set_register_interruptible(dev, 0,
AB3100_RTC, (1 << 2),
0);
}
@@ -210,10 +204,9 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev)
int err;
u8 regval;
struct rtc_device *rtc;
struct ab3100 *ab3100_data = platform_get_drvdata(pdev);
/* The first RTC register needs special treatment */
err = ab3100_get_register_interruptible(ab3100_data,
err = abx500_get_register_interruptible(&pdev->dev, 0,
AB3100_RTC, &regval);
if (err) {
dev_err(&pdev->dev, "unable to read RTC register\n");
@@ -231,7 +224,7 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev)
* This bit remains until RTC power is lost.
*/
regval = 1 | RTC_SETTING;
err = ab3100_set_register_interruptible(ab3100_data,
err = abx500_set_register_interruptible(&pdev->dev, 0,
AB3100_RTC, regval);
/* Ignore any error on this write */
}