Merge branch 'drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...

[pandora-kernel.git] / include / linux / i2c-algo-pca.h

diff --git a/include/linux/i2c-algo-pca.h b/include/linux/i2c-algo-pca.h
index adcb3dc..1364d62 100644 (file)
--- a/include/linux/i2c-algo-pca.h
+++ b/include/linux/i2c-algo-pca.h
@@ -1,7 +1,14 @@
 #ifndef _LINUX_I2C_ALGO_PCA_H
 #define _LINUX_I2C_ALGO_PCA_H
 
-/* Clock speeds for the bus */
+/* Chips known to the pca algo */
+#define I2C_PCA_CHIP_9564      0x00
+#define I2C_PCA_CHIP_9665      0x01
+
+/* Internal period for PCA9665 oscilator */
+#define I2C_PCA_OSC_PER                3 /* e10-8s */
+
+/* Clock speeds for the bus for PCA9564*/
 #define I2C_PCA_CON_330kHz     0x00
 #define I2C_PCA_CON_288kHz     0x01
 #define I2C_PCA_CON_217kHz     0x02
@@ -18,6 +25,26 @@
 #define I2C_PCA_ADR            0x02 /* OWN ADR Read/Write */
 #define I2C_PCA_CON            0x03 /* CONTROL Read/Write */
 
+/* PCA9665 registers */
+#define I2C_PCA_INDPTR          0x00 /* INDIRECT Pointer Write Only */
+#define I2C_PCA_IND             0x02 /* INDIRECT Read/Write */
+
+/* PCA9665 indirect registers */
+#define I2C_PCA_ICOUNT          0x00 /* Byte Count for buffered mode */
+#define I2C_PCA_IADR            0x01 /* OWN ADR */
+#define I2C_PCA_ISCLL           0x02 /* SCL LOW period */
+#define I2C_PCA_ISCLH           0x03 /* SCL HIGH period */
+#define I2C_PCA_ITO             0x04 /* TIMEOUT */
+#define I2C_PCA_IPRESET         0x05 /* Parallel bus reset */
+#define I2C_PCA_IMODE           0x06 /* I2C Bus mode */
+
+/* PCA9665 I2C bus mode */
+#define I2C_PCA_MODE_STD        0x00 /* Standard mode */
+#define I2C_PCA_MODE_FAST       0x01 /* Fast mode */
+#define I2C_PCA_MODE_FASTP      0x02 /* Fast Plus mode */
+#define I2C_PCA_MODE_TURBO      0x03 /* Turbo mode */
+
+
 #define I2C_PCA_CON_AA         0x80 /* Assert Acknowledge */
 #define I2C_PCA_CON_ENSIO      0x40 /* Enable */
 #define I2C_PCA_CON_STA                0x20 /* Start */
@@ -31,7 +58,9 @@ struct i2c_algo_pca_data {
        int  (*read_byte)               (void *data, int reg);
        int  (*wait_for_completion)     (void *data);
        void (*reset_chip)              (void *data);
-       /* i2c_clock values are defined in linux/i2c-algo-pca.h */
+       /* For PCA9564, use one of the predefined frequencies:
+        * 330000, 288000, 217000, 146000, 88000, 59000, 44000, 36000
+        * For PCA9665, use the frequency you want here. */
        unsigned int                    i2c_clock;
 };