mfd: ab8500-core chip version cut 2.0 support

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>

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 86cc887..b688701 100644 (file)
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -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
@@ -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)
@@ -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];
@@ -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)
@@ -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[] = {
@@ -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 {
@@ -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);

diff --git a/include/linux/mfd/ab8500.h b/include/linux/mfd/ab8500.h
index 1ad1696..37f56b7 100644 (file)
--- a/include/linux/mfd/ab8500.h
+++ b/include/linux/mfd/ab8500.h
@@ -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