Merge tag 'am335x_tsc-adc' of git://breakpoint.cc/bigeasy/linux

A complete refurbished series inclunding:
- DT support for the MFD, TSC and ADC driver & platform device support,
  which has no users, has been killed.
- iio_map from last series is gone and replaced by proper nodes in the
  device tree.
- suspend fixes which means correct data structs are taken and no
  interrupt storm
- fifo split which should problem with TSC & ADC beeing used at the same
  time
- The ADC channels are now checked before blindly applied. That means the
  touch part reads X, Y and Z coordinates and does not mix them up. Same
  goes for the IIO ADC driver.
- The IIO ADC driver now creates files named in_voltageX_raw where X
  represents the ADC line instead of a number starting at 0. A read from
  this file can return -EBUSY in case touch is busy and the ADC didn't
  collect a value.

1 files changed, 18 insertions, 17 deletions

diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index c79ad5d2f271..8d73fe29796a 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -30,8 +30,8 @@
 #define REG_IDLECONFIG          0x058
 #define REG_CHARGECONFIG        0x05C
 #define REG_CHARGEDELAY         0x060
-#define REG_STEPCONFIG(n)       (0x64 + ((n - 1) * 8))
-#define REG_STEPDELAY(n)        (0x68 + ((n - 1) * 8))
+#define REG_STEPCONFIG(n)       (0x64 + ((n) * 8))
+#define REG_STEPDELAY(n)        (0x68 + ((n) * 8))
 #define REG_FIFO0CNT            0xE4
 #define REG_FIFO0THR            0xE8
 #define REG_FIFO1CNT            0xF0
@@ -46,8 +46,6 @@
 /* Step Enable */
 #define STEPENB_MASK            (0x1FFFF << 0)
 #define STEPENB(val)            ((val) << 0)
-#define STPENB_STEPENB          STEPENB(0x1FFFF)
-#define STPENB_STEPENB_TC       STEPENB(0x1FFF)
 
 /* IRQ enable */
 #define IRQENB_HW_PEN           BIT(0)
@@ -73,8 +71,6 @@
 #define STEPCONFIG_INM_ADCREFM  STEPCONFIG_INM(8)
 #define STEPCONFIG_INP_MASK     (0xF << 19)
 #define STEPCONFIG_INP(val)     ((val) << 19)
-#define STEPCONFIG_INP_AN2      STEPCONFIG_INP(2)
-#define STEPCONFIG_INP_AN3      STEPCONFIG_INP(3)
 #define STEPCONFIG_INP_AN4      STEPCONFIG_INP(4)
 #define STEPCONFIG_INP_ADCREFM  STEPCONFIG_INP(8)
 #define STEPCONFIG_FIFO1        BIT(26)
@@ -96,7 +92,6 @@
 #define STEPCHARGE_INM_AN1      STEPCHARGE_INM(1)
 #define STEPCHARGE_INP_MASK     (0xF << 19)
 #define STEPCHARGE_INP(val)     ((val) << 19)
-#define STEPCHARGE_INP_AN1      STEPCHARGE_INP(1)
 #define STEPCHARGE_RFM_MASK     (3 << 23)
 #define STEPCHARGE_RFM(val)     ((val) << 23)
 #define STEPCHARGE_RFM_XNUR     STEPCHARGE_RFM(1)
@@ -125,22 +120,17 @@
 
 #define TSCADC_CELLS            2
 
-enum tscadc_cells {
-        TSC_CELL,
-        ADC_CELL,
-};
-
-struct mfd_tscadc_board {
-        struct tsc_data *tsc_init;
-        struct adc_data *adc_init;
-};
-
 struct ti_tscadc_dev {
         struct device *dev;
         struct regmap *regmap_tscadc;
         void __iomem *tscadc_base;
         int irq;
+        int used_cells; /* 1-2 */
+        int tsc_cell;   /* -1 if not used */
+        int adc_cell;   /* -1 if not used */
         struct mfd_cell cells[TSCADC_CELLS];
+        u32 reg_se_cache;
+        spinlock_t reg_lock;
 
         /* tsc device */
         struct titsc *tsc;
@@ -149,4 +139,15 @@ struct ti_tscadc_dev {
         struct adc_device *adc;
 };
 
+static inline struct ti_tscadc_dev *ti_tscadc_dev_get(struct platform_device *p)
+{
+        struct ti_tscadc_dev **tscadc_dev = p->dev.platform_data;
+
+        return *tscadc_dev;
+}
+
+void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc);
+void am335x_tsc_se_set(struct ti_tscadc_dev *tsadc, u32 val);
+void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val);
+
 #endif