i2c: imx: add macros to setup pads for multiple SoC types

Add macro which defines i2c_pads_info structs for multiple SoC types,
and a macro which selects the appropriate struct based on CPU type,
thus eliminating the need to manage multiple i2c pad configurations
manually when supporting multiple SoC types.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>

diff --git a/arch/arm/include/asm/imx-common/mxc_i2c.h b/arch/arm/include/asm/imx-common/mxc_i2c.h
index 47a9edc81b3a4d9e4d1eb874cdc74895b1af114f..182c2f397f1748d0f574a4ffaa9a31335475fba5 100644 (file)
--- a/arch/arm/include/asm/imx-common/mxc_i2c.h
+++ b/arch/arm/include/asm/imx-common/mxc_i2c.h
@@ -19,6 +19,39 @@ struct i2c_pads_info {
        struct i2c_pin_ctrl sda;
 };
 
+#if defined(CONFIG_MX6QDL)
+#define I2C_PADS(name, scl_i2c, scl_gpio, scl_gp, sda_i2c, sda_gpio, sda_gp) \
+       struct i2c_pads_info mx6q_##name = {            \
+               .scl = {                                \
+                       .i2c_mode = MX6Q_##scl_i2c,     \
+                       .gpio_mode = MX6Q_##scl_gpio,   \
+                       .gp = scl_gp,                   \
+               },                                      \
+               .sda = {                                \
+                       .i2c_mode = MX6Q_##sda_i2c,     \
+                       .gpio_mode = MX6Q_##sda_gpio,   \
+                       .gp = sda_gp,                   \
+               }                                       \
+       };                                              \
+       struct i2c_pads_info mx6s_##name = {            \
+               .scl = {                                \
+                       .i2c_mode = MX6DL_##scl_i2c,    \
+                       .gpio_mode = MX6DL_##scl_gpio,  \
+                       .gp = scl_gp,                   \
+               },                                      \
+               .sda = {                                \
+                       .i2c_mode = MX6DL_##sda_i2c,    \
+                       .gpio_mode = MX6DL_##sda_gpio,  \
+                       .gp = sda_gp,                   \
+               }                                       \
+       };
+
+
+#define I2C_PADS_INFO(name)    \
+       (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) ? \
+                                       &mx6q_##name : &mx6s_##name
+#endif
+
 void setup_i2c(unsigned i2c_index, int speed, int slave_addr,
                struct i2c_pads_info *p);
 void bus_i2c_init(void *base, int speed, int slave_addr,