[U-Boot] [PATCH v4 3/7] drivers: i2c: mxc: Solve the compiler error when using i2c dm mode

[Chuanhua Han]

This patch solved the following compilation error:

1.Remove the definition of CONFIG_SYS_I2C to solve the following
compilation issue:
In file included from include/config.h:8:0,
                 from include/common.h:20:
include/config_fallbacks.h:51:4: error: #error "Cannot define
CONFIG_SYS_I2C when CONFIG_DM_I2C is used"
 #  error "Cannot define CONFIG_SYS_I2C when CONFIG_DM_I2C is used"
    ^~~~~
In file included from include/config.h:8:0,
                 from include/common.h:20:
include/config_fallbacks.h:51:4: error: #error "Cannot define
CONFIG_SYS_I2C when CONFIG_DM_I2C is used"
 #  error "Cannot define CONFIG_SYS_I2C when CONFIG_DM_I2C is used"
    ^~~~~

2.Remove the definition of CONFIG_SYS_I2C_EARLY_INIT to solve the
following compilation issue:
board/freescale/lx2160a/lx2160a.c: In function 'board_early_init_f':
board/freescale/lx2160a/lx2160a.c:108:2: warning: implicit declaration
of function 'i2c_early_init_f'; did you mean 'arch_early_init_r'?
[-Wimplicit-function-declaration]
  i2c_early_init_f();
  ^~~~~~~~~~~~~~~~
  arch_early_init_r

3.Move the enable_i2c_clk function definition to resolve the following
compilation issues:
  drivers/i2c/mxc_i2c.c: In function 'mxc_i2c_probe':
  drivers/i2c/mxc_i2c.c:824:8: warning: implicit declaration of function
'enable_i2c_clk';
  did you mean 'enable_irq_wake'? [-Wimplicit-function-declaration]
  ret = enable_i2c_clk(1, bus->seq);
        ^~~~~~~~~~~~~~
        enable_irq_wake

Signed-off-by: Chuanhua Han <chuanhua.han at nxp.com>
---
Changes in v4: 
	- No change.
Changes in v3: 
	- No change.
Changes in v2: 
	- No change.

 arch/arm/include/asm/arch-fsl-layerscape/config.h |    2 --
 drivers/i2c/mxc_i2c.c                             |   15 ++++++++-------
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h b/arch/arm/include/asm/arch-fsl-layerscape/config.h
index eb21c09..5f87499 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/config.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h
@@ -178,8 +178,6 @@
 #elif defined(CONFIG_ARCH_LX2160A)
 #define TZPC_BASE				0x02200000
 #define TZPCDECPROT_0_SET_BASE			(TZPC_BASE + 0x804)
-#define CONFIG_SYS_I2C
-#define CONFIG_SYS_I2C_EARLY_INIT
 #define SRDS_MAX_LANES  8
 #ifndef L1_CACHE_BYTES
 #define L1_CACHE_SHIFT		6
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 23119cc..73b9807 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -558,6 +558,14 @@ static int i2c_read_data(struct mxc_i2c_bus *i2c_bus, uchar chip, uchar *buf,
 	return 0;
 }
 
+int __enable_i2c_clk(unsigned char enable, unsigned int i2c_num)
+{
+	return 1;
+}
+
+int enable_i2c_clk(unsigned char enable, unsigned int i2c_num)
+	__attribute__((weak, alias("__enable_i2c_clk")));
+
 #ifndef CONFIG_DM_I2C
 /*
  * Read data from I2C device
@@ -723,13 +731,6 @@ static int mxc_i2c_probe(struct i2c_adapter *adap, uint8_t chip)
 	return bus_i2c_write(i2c_get_base(adap), chip, 0, 0, NULL, 0);
 }
 
-int __enable_i2c_clk(unsigned char enable, unsigned i2c_num)
-{
-	return 1;
-}
-int enable_i2c_clk(unsigned char enable, unsigned i2c_num)
-	__attribute__((weak, alias("__enable_i2c_clk")));
-
 void bus_i2c_init(int index, int speed, int unused,
 		  int (*idle_bus_fn)(void *p), void *idle_bus_data)
 {
-- 
1.7.1