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update i2c driver: support gpio i2c

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This commit is contained in:
kfx 2011-06-06 17:02:32 +08:00
parent 851e23bf08
commit cd1871b8eb
12 changed files with 364 additions and 30 deletions
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70
arch/arm/mach-rk29/board-rk29-ddr3sdk.c
View File

@ -50,6 +50,7 @@
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/i2c-gpio.h>
#include "devices.h"
#include "../../../drivers/input/touchscreen/xpt2046_cbn_ts.h"
@ -519,31 +520,51 @@ struct bq27510_platform_data bq27510_info = {
*****************************************************************************************/
static int rk29_i2c0_io_init(void)
{
#ifdef CONFIG_RK29_I2C0_CONTROLLER
rk29_mux_api_set(GPIO2B7_I2C0SCL_NAME, GPIO2L_I2C0_SCL);
rk29_mux_api_set(GPIO2B6_I2C0SDA_NAME, GPIO2L_I2C0_SDA);
#else
rk29_mux_api_set(GPIO2B7_I2C0SCL_NAME, GPIO2L_GPIO2B7);
rk29_mux_api_set(GPIO2B6_I2C0SDA_NAME, GPIO2L_GPIO2B6);
#endif
return 0;
}
static int rk29_i2c1_io_init(void)
{
#ifdef CONFIG_RK29_I2C1_CONTROLLER
rk29_mux_api_set(GPIO1A7_I2C1SCL_NAME, GPIO1L_I2C1_SCL);
rk29_mux_api_set(GPIO1A6_I2C1SDA_NAME, GPIO1L_I2C1_SDA);
#else
rk29_mux_api_set(GPIO1A7_I2C1SCL_NAME, GPIO1L_GPIO1A7);
rk29_mux_api_set(GPIO1A6_I2C1SDA_NAME, GPIO1L_GPIO1A6);
#endif
return 0;
}
static int rk29_i2c2_io_init(void)
{
#ifdef CONFIG_RK29_I2C2_CONTROLLER
rk29_mux_api_set(GPIO5D4_I2C2SCL_NAME, GPIO5H_I2C2_SCL);
rk29_mux_api_set(GPIO5D3_I2C2SDA_NAME, GPIO5H_I2C2_SDA);
#else
rk29_mux_api_set(GPIO5D4_I2C2SCL_NAME, GPIO5H_GPIO5D4);
rk29_mux_api_set(GPIO5D3_I2C2SDA_NAME, GPIO5H_GPIO5D3);
#endif
return 0;
}
static int rk29_i2c3_io_init(void)
{
#ifdef CONFIG_RK29_I2C3_CONTROLLER
rk29_mux_api_set(GPIO2B5_UART3RTSN_I2C3SCL_NAME, GPIO2L_I2C3_SCL);
rk29_mux_api_set(GPIO2B4_UART3CTSN_I2C3SDA_NAME, GPIO2L_I2C3_SDA);
#else
rk29_mux_api_set(GPIO2B5_UART3RTSN_I2C3SCL_NAME, GPIO2L_GPIO2B5);
rk29_mux_api_set(GPIO2B4_UART3CTSN_I2C3SDA_NAME, GPIO2L_GPIO2B4);
#endif
return 0;
}
#ifdef CONFIG_RK29_I2C0_CONTROLLER
struct rk29_i2c_platform_data default_i2c0_data = {
.bus_num = 0,
.flags = 0,
@ -552,7 +573,17 @@ struct rk29_i2c_platform_data default_i2c0_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c0_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c0_data = {
.sda_pin = RK29_PIN2_PB6,
.scl_pin = RK29_PIN2_PB7,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 0,
.io_init = rk29_i2c0_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C1_CONTROLLER
struct rk29_i2c_platform_data default_i2c1_data = {
.bus_num = 1,
.flags = 0,
@ -561,7 +592,17 @@ struct rk29_i2c_platform_data default_i2c1_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c1_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c1_data = {
.sda_pin = RK29_PIN1_PA6,
.scl_pin = RK29_PIN1_PA7,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 1,
.io_init = rk29_i2c1_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C2_CONTROLLER
struct rk29_i2c_platform_data default_i2c2_data = {
.bus_num = 2,
.flags = 0,
@ -570,7 +611,17 @@ struct rk29_i2c_platform_data default_i2c2_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c2_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c2_data = {
.sda_pin = RK29_PIN5_PD3,
.scl_pin = RK29_PIN5_PD4,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 2,
.io_init = rk29_i2c2_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C3_CONTROLLER
struct rk29_i2c_platform_data default_i2c3_data = {
.bus_num = 3,
.flags = 0,
@ -579,7 +630,16 @@ struct rk29_i2c_platform_data default_i2c3_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c3_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c3_data = {
.sda_pin = RK29_PIN5_PB5,
.scl_pin = RK29_PIN5_PB4,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 3,
.io_init = rk29_i2c3_io_init,
};
#endif
#ifdef CONFIG_I2C0_RK29
static struct i2c_board_info __initdata board_i2c0_devices[] = {
#if defined (CONFIG_RK1000_CONTROL)

70
arch/arm/mach-rk29/board-rk29-phonesdk.c
View File

@ -55,6 +55,7 @@
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/i2c-gpio.h>
#include "devices.h"
@ -1537,31 +1538,51 @@ static struct l3g4200d_platform_data l3g4200d_info = {
*****************************************************************************************/
static int rk29_i2c0_io_init(void)
{
#ifdef CONFIG_RK29_I2C0_CONTROLLER
rk29_mux_api_set(GPIO2B7_I2C0SCL_NAME, GPIO2L_I2C0_SCL);
rk29_mux_api_set(GPIO2B6_I2C0SDA_NAME, GPIO2L_I2C0_SDA);
#else
rk29_mux_api_set(GPIO2B7_I2C0SCL_NAME, GPIO2L_GPIO2B7);
rk29_mux_api_set(GPIO2B6_I2C0SDA_NAME, GPIO2L_GPIO2B6);
#endif
return 0;
}
static int rk29_i2c1_io_init(void)
{
#ifdef CONFIG_RK29_I2C1_CONTROLLER
rk29_mux_api_set(GPIO1A7_I2C1SCL_NAME, GPIO1L_I2C1_SCL);
rk29_mux_api_set(GPIO1A6_I2C1SDA_NAME, GPIO1L_I2C1_SDA);
#else
rk29_mux_api_set(GPIO1A7_I2C1SCL_NAME, GPIO1L_GPIO1A7);
rk29_mux_api_set(GPIO1A6_I2C1SDA_NAME, GPIO1L_GPIO1A6);
#endif
return 0;
}
static int rk29_i2c2_io_init(void)
{
#ifdef CONFIG_RK29_I2C2_CONTROLLER
rk29_mux_api_set(GPIO5D4_I2C2SCL_NAME, GPIO5H_I2C2_SCL);
rk29_mux_api_set(GPIO5D3_I2C2SDA_NAME, GPIO5H_I2C2_SDA);
#else
rk29_mux_api_set(GPIO5D4_I2C2SCL_NAME, GPIO5H_GPIO5D4);
rk29_mux_api_set(GPIO5D3_I2C2SDA_NAME, GPIO5H_GPIO5D3);
#endif
return 0;
}
static int rk29_i2c3_io_init(void)
{
#ifdef CONFIG_RK29_I2C3_CONTROLLER
rk29_mux_api_set(GPIO2B5_UART3RTSN_I2C3SCL_NAME, GPIO2L_I2C3_SCL);
rk29_mux_api_set(GPIO2B4_UART3CTSN_I2C3SDA_NAME, GPIO2L_I2C3_SDA);
#else
rk29_mux_api_set(GPIO2B5_UART3RTSN_I2C3SCL_NAME, GPIO2L_GPIO2B5);
rk29_mux_api_set(GPIO2B4_UART3CTSN_I2C3SDA_NAME, GPIO2L_GPIO2B4);
#endif
return 0;
}
#ifdef CONFIG_RK29_I2C0_CONTROLLER
struct rk29_i2c_platform_data default_i2c0_data = {
.bus_num = 0,
.flags = 0,
@ -1570,7 +1591,17 @@ struct rk29_i2c_platform_data default_i2c0_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c0_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c0_data = {
.sda_pin = RK29_PIN2_PB6,
.scl_pin = RK29_PIN2_PB7,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 0,
.io_init = rk29_i2c0_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C1_CONTROLLER
struct rk29_i2c_platform_data default_i2c1_data = {
.bus_num = 1,
.flags = 0,
@ -1579,7 +1610,17 @@ struct rk29_i2c_platform_data default_i2c1_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c1_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c1_data = {
.sda_pin = RK29_PIN1_PA6,
.scl_pin = RK29_PIN1_PA7,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 1,
.io_init = rk29_i2c1_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C2_CONTROLLER
struct rk29_i2c_platform_data default_i2c2_data = {
.bus_num = 2,
.flags = 0,
@ -1588,7 +1629,17 @@ struct rk29_i2c_platform_data default_i2c2_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c2_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c2_data = {
.sda_pin = RK29_PIN5_PD3,
.scl_pin = RK29_PIN5_PD4,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 2,
.io_init = rk29_i2c2_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C3_CONTROLLER
struct rk29_i2c_platform_data default_i2c3_data = {
.bus_num = 3,
.flags = 0,
@ -1597,7 +1648,16 @@ struct rk29_i2c_platform_data default_i2c3_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c3_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c3_data = {
.sda_pin = RK29_PIN5_PB5,
.scl_pin = RK29_PIN5_PB4,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 3,
.io_init = rk29_i2c3_io_init,
};
#endif
#ifdef CONFIG_I2C0_RK29
static struct i2c_board_info __initdata board_i2c0_devices[] = {
#if defined (CONFIG_RK1000_CONTROL)

70
arch/arm/mach-rk29/board-rk29phonepadsdk.c
View File

@ -50,6 +50,7 @@
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/i2c-gpio.h>
#include "devices.h"
#if defined(CONFIG_MU509)
@ -537,31 +538,51 @@ struct bq27510_platform_data bq27510_info = {
*****************************************************************************************/
static int rk29_i2c0_io_init(void)
{
#ifdef CONFIG_RK29_I2C0_CONTROLLER
rk29_mux_api_set(GPIO2B7_I2C0SCL_NAME, GPIO2L_I2C0_SCL);
rk29_mux_api_set(GPIO2B6_I2C0SDA_NAME, GPIO2L_I2C0_SDA);
#else
rk29_mux_api_set(GPIO2B7_I2C0SCL_NAME, GPIO2L_GPIO2B7);
rk29_mux_api_set(GPIO2B6_I2C0SDA_NAME, GPIO2L_GPIO2B6);
#endif
return 0;
}
static int rk29_i2c1_io_init(void)
{
#ifdef CONFIG_RK29_I2C1_CONTROLLER
rk29_mux_api_set(GPIO1A7_I2C1SCL_NAME, GPIO1L_I2C1_SCL);
rk29_mux_api_set(GPIO1A6_I2C1SDA_NAME, GPIO1L_I2C1_SDA);
#else
rk29_mux_api_set(GPIO1A7_I2C1SCL_NAME, GPIO1L_GPIO1A7);
rk29_mux_api_set(GPIO1A6_I2C1SDA_NAME, GPIO1L_GPIO1A6);
#endif
return 0;
}
static int rk29_i2c2_io_init(void)
{
#ifdef CONFIG_RK29_I2C2_CONTROLLER
rk29_mux_api_set(GPIO5D4_I2C2SCL_NAME, GPIO5H_I2C2_SCL);
rk29_mux_api_set(GPIO5D3_I2C2SDA_NAME, GPIO5H_I2C2_SDA);
#else
rk29_mux_api_set(GPIO5D4_I2C2SCL_NAME, GPIO5H_GPIO5D4);
rk29_mux_api_set(GPIO5D3_I2C2SDA_NAME, GPIO5H_GPIO5D3);
#endif
return 0;
}
static int rk29_i2c3_io_init(void)
{
#ifdef CONFIG_RK29_I2C3_CONTROLLER
rk29_mux_api_set(GPIO2B5_UART3RTSN_I2C3SCL_NAME, GPIO2L_I2C3_SCL);
rk29_mux_api_set(GPIO2B4_UART3CTSN_I2C3SDA_NAME, GPIO2L_I2C3_SDA);
#else
rk29_mux_api_set(GPIO2B5_UART3RTSN_I2C3SCL_NAME, GPIO2L_GPIO2B5);
rk29_mux_api_set(GPIO2B4_UART3CTSN_I2C3SDA_NAME, GPIO2L_GPIO2B4);
#endif
return 0;
}
#ifdef CONFIG_RK29_I2C0_CONTROLLER
struct rk29_i2c_platform_data default_i2c0_data = {
.bus_num = 0,
.flags = 0,
@ -570,7 +591,17 @@ struct rk29_i2c_platform_data default_i2c0_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c0_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c0_data = {
.sda_pin = RK29_PIN2_PB6,
.scl_pin = RK29_PIN2_PB7,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 0,
.io_init = rk29_i2c0_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C1_CONTROLLER
struct rk29_i2c_platform_data default_i2c1_data = {
.bus_num = 1,
.flags = 0,
@ -579,7 +610,17 @@ struct rk29_i2c_platform_data default_i2c1_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c1_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c1_data = {
.sda_pin = RK29_PIN1_PA6,
.scl_pin = RK29_PIN1_PA7,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 1,
.io_init = rk29_i2c1_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C2_CONTROLLER
struct rk29_i2c_platform_data default_i2c2_data = {
.bus_num = 2,
.flags = 0,
@ -588,7 +629,17 @@ struct rk29_i2c_platform_data default_i2c2_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c2_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c2_data = {
.sda_pin = RK29_PIN5_PD3,
.scl_pin = RK29_PIN5_PD4,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 2,
.io_init = rk29_i2c2_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C3_CONTROLLER
struct rk29_i2c_platform_data default_i2c3_data = {
.bus_num = 3,
.flags = 0,
@ -597,7 +648,16 @@ struct rk29_i2c_platform_data default_i2c3_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c3_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c3_data = {
.sda_pin = RK29_PIN5_PB5,
.scl_pin = RK29_PIN5_PB4,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 3,
.io_init = rk29_i2c3_io_init,
};
#endif
#ifdef CONFIG_I2C0_RK29
static struct i2c_board_info __initdata board_i2c0_devices[] = {
#if defined (CONFIG_RK1000_CONTROL)

70
arch/arm/mach-rk29/board-rk29sdk.c
View File

@ -50,6 +50,7 @@
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/i2c-gpio.h>
#include "devices.h"
#include "../../../drivers/input/touchscreen/xpt2046_cbn_ts.h"
@ -525,31 +526,51 @@ struct bq27510_platform_data bq27510_info = {
*****************************************************************************************/
static int rk29_i2c0_io_init(void)
{
#ifdef CONFIG_RK29_I2C0_CONTROLLER
rk29_mux_api_set(GPIO2B7_I2C0SCL_NAME, GPIO2L_I2C0_SCL);
rk29_mux_api_set(GPIO2B6_I2C0SDA_NAME, GPIO2L_I2C0_SDA);
#else
rk29_mux_api_set(GPIO2B7_I2C0SCL_NAME, GPIO2L_GPIO2B7);
rk29_mux_api_set(GPIO2B6_I2C0SDA_NAME, GPIO2L_GPIO2B6);
#endif
return 0;
}
static int rk29_i2c1_io_init(void)
{
#ifdef CONFIG_RK29_I2C1_CONTROLLER
rk29_mux_api_set(GPIO1A7_I2C1SCL_NAME, GPIO1L_I2C1_SCL);
rk29_mux_api_set(GPIO1A6_I2C1SDA_NAME, GPIO1L_I2C1_SDA);
#else
rk29_mux_api_set(GPIO1A7_I2C1SCL_NAME, GPIO1L_GPIO1A7);
rk29_mux_api_set(GPIO1A6_I2C1SDA_NAME, GPIO1L_GPIO1A6);
#endif
return 0;
}
static int rk29_i2c2_io_init(void)
{
#ifdef CONFIG_RK29_I2C2_CONTROLLER
rk29_mux_api_set(GPIO5D4_I2C2SCL_NAME, GPIO5H_I2C2_SCL);
rk29_mux_api_set(GPIO5D3_I2C2SDA_NAME, GPIO5H_I2C2_SDA);
#else
rk29_mux_api_set(GPIO5D4_I2C2SCL_NAME, GPIO5H_GPIO5D4);
rk29_mux_api_set(GPIO5D3_I2C2SDA_NAME, GPIO5H_GPIO5D3);
#endif
return 0;
}
static int rk29_i2c3_io_init(void)
{
#ifdef CONFIG_RK29_I2C3_CONTROLLER
rk29_mux_api_set(GPIO2B5_UART3RTSN_I2C3SCL_NAME, GPIO2L_I2C3_SCL);
rk29_mux_api_set(GPIO2B4_UART3CTSN_I2C3SDA_NAME, GPIO2L_I2C3_SDA);
#else
rk29_mux_api_set(GPIO2B5_UART3RTSN_I2C3SCL_NAME, GPIO2L_GPIO2B5);
rk29_mux_api_set(GPIO2B4_UART3CTSN_I2C3SDA_NAME, GPIO2L_GPIO2B4);
#endif
return 0;
}
#ifdef CONFIG_RK29_I2C0_CONTROLLER
struct rk29_i2c_platform_data default_i2c0_data = {
.bus_num = 0,
.flags = 0,
@ -558,7 +579,17 @@ struct rk29_i2c_platform_data default_i2c0_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c0_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c0_data = {
.sda_pin = RK29_PIN2_PB6,
.scl_pin = RK29_PIN2_PB7,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 0,
.io_init = rk29_i2c0_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C1_CONTROLLER
struct rk29_i2c_platform_data default_i2c1_data = {
.bus_num = 1,
.flags = 0,
@ -567,7 +598,17 @@ struct rk29_i2c_platform_data default_i2c1_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c1_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c1_data = {
.sda_pin = RK29_PIN1_PA6,
.scl_pin = RK29_PIN1_PA7,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 1,
.io_init = rk29_i2c1_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C2_CONTROLLER
struct rk29_i2c_platform_data default_i2c2_data = {
.bus_num = 2,
.flags = 0,
@ -576,7 +617,17 @@ struct rk29_i2c_platform_data default_i2c2_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c2_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c2_data = {
.sda_pin = RK29_PIN5_PD3,
.scl_pin = RK29_PIN5_PD4,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 2,
.io_init = rk29_i2c2_io_init,
};
#endif
#ifdef CONFIG_RK29_I2C3_CONTROLLER
struct rk29_i2c_platform_data default_i2c3_data = {
.bus_num = 3,
.flags = 0,
@ -585,7 +636,16 @@ struct rk29_i2c_platform_data default_i2c3_data = {
.mode = I2C_MODE_IRQ,
.io_init = rk29_i2c3_io_init,
};
#else
struct i2c_gpio_platform_data default_i2c3_data = {
.sda_pin = RK29_PIN5_PB5,
.scl_pin = RK29_PIN5_PB4,
.udelay = 5, // clk = 500/udelay = 100Khz
.timeout = 100,//msecs_to_jiffies(200),
.bus_num = 3,
.io_init = rk29_i2c3_io_init,
};
#endif
#ifdef CONFIG_I2C0_RK29
static struct i2c_board_info __initdata board_i2c0_devices[] = {
#if defined (CONFIG_RK1000_CONTROL)

41
arch/arm/mach-rk29/devices.c
View File

@ -79,6 +79,7 @@ struct platform_device rk29_device_vmac = {
#endif
#ifdef CONFIG_I2C_RK29
#ifdef CONFIG_RK29_I2C0_CONTROLLER
static struct resource resources_i2c0[] = {
{
.start = IRQ_I2C0,
@ -91,6 +92,8 @@ static struct resource resources_i2c0[] = {
.flags = IORESOURCE_MEM,
},
};
#endif
#ifdef CONFIG_RK29_I2C1_CONTROLLER
static struct resource resources_i2c1[] = {
{
.start = IRQ_I2C1,
@ -103,6 +106,8 @@ static struct resource resources_i2c1[] = {
.flags = IORESOURCE_MEM,
},
};
#endif
#ifdef CONFIG_RK29_I2C2_CONTROLLER
static struct resource resources_i2c2[] = {
{
.start = IRQ_I2C2,
@ -115,6 +120,8 @@ static struct resource resources_i2c2[] = {
.flags = IORESOURCE_MEM,
},
};
#endif
#ifdef CONFIG_RK29_I2C3_CONTROLLER
static struct resource resources_i2c3[] = {
{
.start = IRQ_I2C3,
@ -127,8 +134,9 @@ static struct resource resources_i2c3[] = {
.flags = IORESOURCE_MEM,
},
};
#endif
struct platform_device rk29_device_i2c0 = {
#ifdef CONFIG_RK29_I2C0_CONTROLLER
.name = "rk29_i2c",
.id = 0,
.num_resources = ARRAY_SIZE(resources_i2c0),
@ -136,8 +144,16 @@ struct platform_device rk29_device_i2c0 = {
.dev = {
.platform_data = &default_i2c0_data,
},
#else
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &default_i2c0_data,
},
#endif
};
struct platform_device rk29_device_i2c1 = {
#ifdef CONFIG_RK29_I2C1_CONTROLLER
.name = "rk29_i2c",
.id = 1,
.num_resources = ARRAY_SIZE(resources_i2c1),
@ -145,8 +161,16 @@ struct platform_device rk29_device_i2c1 = {
.dev = {
.platform_data = &default_i2c1_data,
},
#else
.name = "i2c-gpio",
.id = 1,
.dev = {
.platform_data = &default_i2c1_data,
},
#endif
};
struct platform_device rk29_device_i2c2 = {
#ifdef CONFIG_RK29_I2C2_CONTROLLER
.name = "rk29_i2c",
.id = 2,
.num_resources = ARRAY_SIZE(resources_i2c2),
@ -154,8 +178,16 @@ struct platform_device rk29_device_i2c2 = {
.dev = {
.platform_data = &default_i2c2_data,
},
#else
.name = "i2c-gpio",
.id = 2,
.dev = {
.platform_data = &default_i2c2_data,
},
#endif
};
struct platform_device rk29_device_i2c3 = {
#ifdef CONFIG_RK29_I2C3_CONTROLLER
.name = "rk29_i2c",
.id = 3,
.num_resources = ARRAY_SIZE(resources_i2c3),
@ -163,6 +195,13 @@ struct platform_device rk29_device_i2c3 = {
.dev = {
.platform_data = &default_i2c3_data,
},
#else
.name = "i2c-gpio",
.id = 3,
.dev = {
.platform_data = &default_i2c3_data,
},
#endif
};
#endif

17
arch/arm/mach-rk29/devices.h
View File

@ -17,11 +17,26 @@
#define __ARCH_ARM_MACH_RK29_DEVICES_H
extern struct rk29_nand_platform_data rk29_nand_data;
#ifdef CONFIG_RK29_I2C0_CONTROLLER
extern struct rk29_i2c_platform_data default_i2c0_data;
#else
extern struct i2c_gpio_platform_data default_i2c0_data;
#endif
#ifdef CONFIG_RK29_I2C1_CONTROLLER
extern struct rk29_i2c_platform_data default_i2c1_data;
#else
extern struct i2c_gpio_platform_data default_i2c1_data;
#endif
#ifdef CONFIG_RK29_I2C2_CONTROLLER
extern struct rk29_i2c_platform_data default_i2c2_data;
#else
extern struct i2c_gpio_platform_data default_i2c2_data;
#endif
#ifdef CONFIG_RK29_I2C3_CONTROLLER
extern struct rk29_i2c_platform_data default_i2c3_data;
#else
extern struct i2c_gpio_platform_data default_i2c3_data;
#endif
extern struct platform_device rk29_device_i2c0;
extern struct platform_device rk29_device_i2c1;

3
drivers/i2c/algos/Makefile
View File

@ -2,7 +2,8 @@
# Makefile for the i2c algorithms
#
obj-$(CONFIG_I2C_ALGOBIT) += i2c-algo-bit.o
#obj-$(CONFIG_I2C_ALGOBIT) += i2c-algo-bit.o
obj-y += i2c-algo-bit.o
obj-$(CONFIG_I2C_ALGOPCF) += i2c-algo-pcf.o
obj-$(CONFIG_I2C_ALGOPCA) += i2c-algo-pca.o

7
drivers/i2c/algos/i2c-algo-bit.c Normal file → Executable file
View File

@ -363,7 +363,7 @@ static int sendbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
* the SMBus PEC was wrong.
*/
} else if (retval == 0) {
dev_err(&i2c_adap->dev, "sendbytes: NAK bailout.\n");
dev_err(&i2c_adap->dev, "sendbytes: NAK bailout, addr is 0x%x.\n", msg->addr);
return -EIO;
/* Timeout; or (someday) lost arbitration
@ -374,8 +374,8 @@ static int sendbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)
* to know or care about this ... it is *NOT* an error.
*/
} else {
dev_err(&i2c_adap->dev, "sendbytes: error %d\n",
retval);
dev_err(&i2c_adap->dev, "sendbytes: error %d, addr is 0x%x.\n",
retval, msg->addr);
return retval;
}
}
@ -523,6 +523,7 @@ static int bit_xfer(struct i2c_adapter *i2c_adap,
unsigned short nak_ok;
bit_dbg(3, &i2c_adap->dev, "emitting start condition\n");
adap->udelay = 500 * 1000/msgs[0].scl_rate + 1;
i2c_start(adap);
for (i = 0; i < num; i++) {
pmsg = &msgs[i];

37
drivers/i2c/busses/Kconfig
View File

@ -307,13 +307,30 @@ if I2C_RK29
depends on ARCH_RK29
help
This supports the use of the I2C0 interface on rk29 processors.
if I2C0_RK29
choice
prompt "I2C transfer mode select"
config RK29_I2C0_CONTROLLER
bool "With i2c controller"
config RK29_I2C0_GPIO
bool "Simulation with GPIO"
endchoice
endif
config I2C1_RK29
bool "RK29 I2C1 interface support"
default y
depends on ARCH_RK29
help
This supports the use of the I2C1 interface on rk29 processors.
if I2C1_RK29
choice
prompt "I2C transfer mode select"
config RK29_I2C1_CONTROLLER
bool "With i2c controller"
config RK29_I2C1_GPIO
bool "Simulation with GPIO"
endchoice
endif
config I2C2_RK29
bool "RK29 I2C2 interface support"
@ -321,6 +338,15 @@ if I2C_RK29
depends on ARCH_RK29
help
This supports the use of the I2C2 interface on rk29 processors.
if I2C2_RK29
choice
prompt "I2C transfer mode select"
config RK29_I2C2_CONTROLLER
bool "With i2c controller"
config RK29_I2C2_GPIO
bool "Simulation with GPIO"
endchoice
endif
config I2C3_RK29
bool "RK29 I2C3 interface support"
@ -328,6 +354,15 @@ if I2C_RK29
depends on ARCH_RK29 && !UART3_CTS_RTS_RK29
help
This supports the use of the I2C3 interface on rk29 processors.
if I2C3_RK29
choice
prompt "I2C transfer mode select"
config RK29_I2C3_CONTROLLER
bool "With i2c controller"
config RK29_I2C3_GPIO
bool "Simulation with GPIO"
endchoice
endif
endif
config I2C_DEV_RK29
tristate "RK29 I2C device interface support"

2
drivers/i2c/busses/Makefile
View File

@ -4,7 +4,7 @@
obj-$(CONFIG_I2C_RK2818) += i2c-rk2818.o
obj-$(CONFIG_I2C_RK29) += i2c-rk29.o
obj-$(CONFIG_I2C_DEV_RK29) += i2c-dev-rk29.o
obj-y += i2c-gpio.o
ifeq ($(CONFIG_I2C_DEBUG_BUS),y)
EXTRA_CFLAGS += -DDEBUG

5
drivers/i2c/busses/i2c-gpio.c Normal file → Executable file
View File

@ -87,7 +87,8 @@ static int __devinit i2c_gpio_probe(struct platform_device *pdev)
pdata = pdev->dev.platform_data;
if (!pdata)
return -ENXIO;
if(pdata->io_init)
pdata->io_init();
ret = -ENOMEM;
adap = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
if (!adap)
@ -210,7 +211,7 @@ static int __init i2c_gpio_init(void)
return ret;
}
module_init(i2c_gpio_init);
subsys_initcall(i2c_gpio_init);
static void __exit i2c_gpio_exit(void)
{

2
include/linux/i2c-gpio.h Normal file → Executable file
View File

@ -33,6 +33,8 @@ struct i2c_gpio_platform_data {
unsigned int sda_is_open_drain:1;
unsigned int scl_is_open_drain:1;
unsigned int scl_is_output_only:1;
int bus_num;
int (*io_init)(void);
};
#endif /* _LINUX_I2C_GPIO_H */