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i2c: pxa: move private definitions to i2c-pxa.c

Move driver-private definitions out of the i2c-pxa.h platform data header file into the driver itself. Nothing outside of the driver makes use of these constants.

Russell King committed 6 years ago

Commit 79622f31 parent ee478932 files · +43 −48Browse files

Unified · Split

2 files
  1. drivers/i2c/busses/i2c-pxa.c +43 −0
  2. include/linux/platform_data/i2c-pxa.h +0 −48
drivers/i2c/busses/i2c-pxa.c+43−0
@@ -85,6 +85,49 @@ · 84 unmodified lines
85#define IWCR_HS_CNT2_SHIFT 1085#define IWCR_HS_CNT2_SHIFT 10
86#define IWCR_HS_CNT2_MASK (0x1F << IWCR_HS_CNT2_SHIFT)86#define IWCR_HS_CNT2_MASK (0x1F << IWCR_HS_CNT2_SHIFT)
87 87
88/* need a longer timeout if we're dealing with the fact we may well be
89 * looking at a multi-master environment
90 */
91#define DEF_TIMEOUT 32
92
93#define BUS_ERROR (-EREMOTEIO)
94#define XFER_NAKED (-ECONNREFUSED)
95#define I2C_RETRY (-2000) /* an error has occurred retry transmit */
96
97/* ICR initialize bit values
98 *
99 * 15 FM 0 (100 kHz operation)
100 * 14 UR 0 (No unit reset)
101 * 13 SADIE 0 (Disables the unit from interrupting on slave addresses
102 * matching its slave address)
103 * 12 ALDIE 0 (Disables the unit from interrupt when it loses arbitration
104 * in master mode)
105 * 11 SSDIE 0 (Disables interrupts from a slave stop detected, in slave mode)
106 * 10 BEIE 1 (Enable interrupts from detected bus errors, no ACK sent)
107 * 9 IRFIE 1 (Enable interrupts from full buffer received)
108 * 8 ITEIE 1 (Enables the I2C unit to interrupt when transmit buffer empty)
109 * 7 GCD 1 (Disables i2c unit response to general call messages as a slave)
110 * 6 IUE 0 (Disable unit until we change settings)
111 * 5 SCLE 1 (Enables the i2c clock output for master mode (drives SCL)
112 * 4 MA 0 (Only send stop with the ICR stop bit)
113 * 3 TB 0 (We are not transmitting a byte initially)
114 * 2 ACKNAK 0 (Send an ACK after the unit receives a byte)
115 * 1 STOP 0 (Do not send a STOP)
116 * 0 START 0 (Do not send a START)
117 */
118#define I2C_ICR_INIT (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE)
119
120/* I2C status register init values
121 *
122 * 10 BED 1 (Clear bus error detected)
123 * 9 SAD 1 (Clear slave address detected)
124 * 7 IRF 1 (Clear IDBR Receive Full)
125 * 6 ITE 1 (Clear IDBR Transmit Empty)
126 * 5 ALD 1 (Clear Arbitration Loss Detected)
127 * 4 SSD 1 (Clear Slave Stop Detected)
128 */
129#define I2C_ISR_INIT 0x7FF /* status register init */
130
88struct pxa_reg_layout {131struct pxa_reg_layout {
89 u32 ibmr;132 u32 ibmr;
90 u32 idbr;133 u32 idbr;
include/linux/platform_data/i2c-pxa.h+0−48
@@ -7,54 +7,6 @@ · 6 unmodified lines
7#ifndef _I2C_PXA_H_7#ifndef _I2C_PXA_H_
8#define _I2C_PXA_H_8#define _I2C_PXA_H_
9 9
10#if 0
11#define DEF_TIMEOUT 3
12#else
13/* need a longer timeout if we're dealing with the fact we may well be
14 * looking at a multi-master environment
15*/
16#define DEF_TIMEOUT 32
17#endif
18
19#define BUS_ERROR (-EREMOTEIO)
20#define XFER_NAKED (-ECONNREFUSED)
21#define I2C_RETRY (-2000) /* an error has occurred retry transmit */
22
23/* ICR initialize bit values
24*
25* 15. FM 0 (100 Khz operation)
26* 14. UR 0 (No unit reset)
27* 13. SADIE 0 (Disables the unit from interrupting on slave addresses
28* matching its slave address)
29* 12. ALDIE 0 (Disables the unit from interrupt when it loses arbitration
30* in master mode)
31* 11. SSDIE 0 (Disables interrupts from a slave stop detected, in slave mode)
32* 10. BEIE 1 (Enable interrupts from detected bus errors, no ACK sent)
33* 9. IRFIE 1 (Enable interrupts from full buffer received)
34* 8. ITEIE 1 (Enables the I2C unit to interrupt when transmit buffer empty)
35* 7. GCD 1 (Disables i2c unit response to general call messages as a slave)
36* 6. IUE 0 (Disable unit until we change settings)
37* 5. SCLE 1 (Enables the i2c clock output for master mode (drives SCL)
38* 4. MA 0 (Only send stop with the ICR stop bit)
39* 3. TB 0 (We are not transmitting a byte initially)
40* 2. ACKNAK 0 (Send an ACK after the unit receives a byte)
41* 1. STOP 0 (Do not send a STOP)
42* 0. START 0 (Do not send a START)
43*
44*/
45#define I2C_ICR_INIT (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE)
46
47/* I2C status register init values
48 *
49 * 10. BED 1 (Clear bus error detected)
50 * 9. SAD 1 (Clear slave address detected)
51 * 7. IRF 1 (Clear IDBR Receive Full)
52 * 6. ITE 1 (Clear IDBR Transmit Empty)
53 * 5. ALD 1 (Clear Arbitration Loss Detected)
54 * 4. SSD 1 (Clear Slave Stop Detected)
55 */
56#define I2C_ISR_INIT 0x7FF /* status register init */
57
58struct i2c_pxa_platform_data {10struct i2c_pxa_platform_data {
59 unsigned int class;11 unsigned int class;
60 unsigned int use_pio :1;12 unsigned int use_pio :1;