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mfd: ab8500-core chip version cut 2.0 support
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This patch adds support for chip version 2.0 or cut 2.0.
One new interrupt latch register - latch 12 - is introduced.

Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Mattias Wallin authored and Samuel Ortiz committed Jan 14, 2011
1 parent 180e4f5 commit 92d50a4
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Showing 2 changed files with 55 additions and 34 deletions.
36 changes: 25 additions & 11 deletions drivers/mfd/ab8500-core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,7 @@
#define AB8500_IT_LATCH8_REG 0x27
#define AB8500_IT_LATCH9_REG 0x28
#define AB8500_IT_LATCH10_REG 0x29
#define AB8500_IT_LATCH12_REG 0x2B
#define AB8500_IT_LATCH19_REG 0x32
#define AB8500_IT_LATCH20_REG 0x33
#define AB8500_IT_LATCH21_REG 0x34
Expand Down Expand Up @@ -98,7 +99,7 @@
* offset 0.
*/
static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
0, 1, 2, 3, 4, 6, 7, 8, 9, 18, 19, 20, 21,
0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
};

static int ab8500_get_chip_id(struct device *dev)
Expand Down Expand Up @@ -252,6 +253,10 @@ static void ab8500_irq_sync_unlock(struct irq_data *data)
if (new == old)
continue;

/* Interrupt register 12 does'nt exist prior to version 0x20 */
if (ab8500_irq_regoffset[i] == 11 && ab8500->chip_id < 0x20)
continue;

ab8500->oldmask[i] = new;

reg = AB8500_IT_MASK1_REG + ab8500_irq_regoffset[i];
Expand Down Expand Up @@ -301,6 +306,10 @@ static irqreturn_t ab8500_irq(int irq, void *dev)
int status;
u8 value;

/* Interrupt register 12 does'nt exist prior to version 0x20 */
if (regoffset == 11 && ab8500->chip_id < 0x20)
continue;

status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
AB8500_IT_LATCH1_REG + regoffset, &value);
if (status < 0 || value == 0)
Expand Down Expand Up @@ -554,6 +563,12 @@ static struct resource ab8500_usb_resources[] = {
.end = AB8500_INT_VBUS_DET_R,
.flags = IORESOURCE_IRQ,
},
{
.name = "USB_LINK_STATUS",
.start = AB8500_INT_USB_LINK_STATUS,
.end = AB8500_INT_USB_LINK_STATUS,
.flags = IORESOURCE_IRQ,
},
};

static struct resource ab8500_temp_resources[] = {
Expand Down Expand Up @@ -670,8 +685,9 @@ int __devinit ab8500_init(struct ab8500 *ab8500)
* 0x0 - Early Drop
* 0x10 - Cut 1.0
* 0x11 - Cut 1.1
* 0x20 - Cut 2.0
*/
if (value == 0x0 || value == 0x10 || value == 0x11) {
if (value == 0x0 || value == 0x10 || value == 0x11 || value == 0x20) {
ab8500->revision = value;
dev_info(ab8500->dev, "detected chip, revision: %#x\n", value);
} else {
Expand All @@ -684,18 +700,16 @@ int __devinit ab8500_init(struct ab8500 *ab8500)
plat->init(ab8500);

/* Clear and mask all interrupts */
for (i = 0; i < 10; i++) {
get_register_interruptible(ab8500, AB8500_INTERRUPT,
AB8500_IT_LATCH1_REG + i, &value);
set_register_interruptible(ab8500, AB8500_INTERRUPT,
AB8500_IT_MASK1_REG + i, 0xff);
}
for (i = 0; i < AB8500_NUM_IRQ_REGS; i++) {
/* Interrupt register 12 does'nt exist prior to version 0x20 */
if (ab8500_irq_regoffset[i] == 11 && ab8500->chip_id < 0x20)
continue;

for (i = 18; i < 24; i++) {
get_register_interruptible(ab8500, AB8500_INTERRUPT,
AB8500_IT_LATCH1_REG + i, &value);
AB8500_IT_LATCH1_REG + ab8500_irq_regoffset[i],
&value);
set_register_interruptible(ab8500, AB8500_INTERRUPT,
AB8500_IT_MASK1_REG + i, 0xff);
AB8500_IT_MASK1_REG + ab8500_irq_regoffset[i], 0xff);
}

ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
Expand Down
53 changes: 30 additions & 23 deletions include/linux/mfd/ab8500.h
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Original file line number Diff line number Diff line change
Expand Up @@ -74,30 +74,37 @@
#define AB8500_INT_ACC_DETECT_21DB_F 37
#define AB8500_INT_ACC_DETECT_21DB_R 38
#define AB8500_INT_GP_SW_ADC_CONV_END 39
#define AB8500_INT_BTEMP_LOW 72
#define AB8500_INT_BTEMP_LOW_MEDIUM 73
#define AB8500_INT_BTEMP_MEDIUM_HIGH 74
#define AB8500_INT_BTEMP_HIGH 75
#define AB8500_INT_USB_CHARGER_NOT_OK 81
#define AB8500_INT_ID_WAKEUP_R 82
#define AB8500_INT_ID_DET_R1R 84
#define AB8500_INT_ID_DET_R2R 85
#define AB8500_INT_ID_DET_R3R 86
#define AB8500_INT_ID_DET_R4R 87
#define AB8500_INT_ID_WAKEUP_F 88
#define AB8500_INT_ID_DET_R1F 90
#define AB8500_INT_ID_DET_R2F 91
#define AB8500_INT_ID_DET_R3F 92
#define AB8500_INT_ID_DET_R4F 93
#define AB8500_INT_USB_CHG_DET_DONE 94
#define AB8500_INT_USB_CH_TH_PROT_F 96
#define AB8500_INT_USB_CH_TH_PROT_R 97
#define AB8500_INT_MAIN_CH_TH_PROT_F 98
#define AB8500_INT_MAIN_CH_TH_PROT_R 99
#define AB8500_INT_USB_CHARGER_NOT_OKF 103
#define AB8500_INT_ADP_SOURCE_ERROR 72
#define AB8500_INT_ADP_SINK_ERROR 73
#define AB8500_INT_ADP_PROBE_PLUG 74
#define AB8500_INT_ADP_PROBE_UNPLUG 75
#define AB8500_INT_ADP_SENSE_OFF 76
#define AB8500_INT_USB_PHY_POWER_ERR 78
#define AB8500_INT_USB_LINK_STATUS 79
#define AB8500_INT_BTEMP_LOW 80
#define AB8500_INT_BTEMP_LOW_MEDIUM 81
#define AB8500_INT_BTEMP_MEDIUM_HIGH 82
#define AB8500_INT_BTEMP_HIGH 83
#define AB8500_INT_USB_CHARGER_NOT_OK 89
#define AB8500_INT_ID_WAKEUP_R 90
#define AB8500_INT_ID_DET_R1R 92
#define AB8500_INT_ID_DET_R2R 93
#define AB8500_INT_ID_DET_R3R 94
#define AB8500_INT_ID_DET_R4R 95
#define AB8500_INT_ID_WAKEUP_F 96
#define AB8500_INT_ID_DET_R1F 98
#define AB8500_INT_ID_DET_R2F 99
#define AB8500_INT_ID_DET_R3F 100
#define AB8500_INT_ID_DET_R4F 101
#define AB8500_INT_USB_CHG_DET_DONE 102
#define AB8500_INT_USB_CH_TH_PROT_F 104
#define AB8500_INT_USB_CH_TH_PROT_R 105
#define AB8500_INT_MAIN_CH_TH_PROT_F 106
#define AB8500_INT_MAIN_CH_TH_PROT_R 107
#define AB8500_INT_USB_CHARGER_NOT_OKF 111

#define AB8500_NR_IRQS 104
#define AB8500_NUM_IRQ_REGS 13
#define AB8500_NR_IRQS 112
#define AB8500_NUM_IRQ_REGS 14

/**
* struct ab8500 - ab8500 internal structure
Expand Down

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