MTK 平台使用DTS的方式兼容不同gsensor的修改
一．在dct工具目录下的I2C_YuSu.cmp文件中添加GSENSOR_1
80_c_m\update\alps\kst\drv\dct\dct\old_dct\I2C_YuSu.cmp
GSENSOR
GSENSOR_1
这样在使用DrvGen.exe打开codegen.dws时，I2C选项卡就能配置GSENSOR和GSENSOR_1，配置两种gsensor的i2c地址
二．在dts中添加两种gsensor的配置，如下
update/alps/kst/drv/dct/v117_128_dws/magc6580_we_c_m.dts
cust_accel@0 {
compatible = "mediatek,mc3xxx";
i2c_num = <2>;
i2c_addr = <0x4c 0 0 0>;
direction = <5>;
power_id = <0xffff>;
power_vol = <0>;
firlen = <0>;
is_batch_supported = <0>;
};
cust_accel_mxc6255@0 {
compatible = "mediatek,MXC622X";
i2c_num = <2>;
i2c_addr = <0x15 0 0 0>;
direction = <2>;
power_id = <0xffff>;
power_vol = <0>;
firlen = <0>;
is_batch_supported = <0>;
};
三．mxc622x.c中配置成mediatek,gsensor_1，用宏CONFIG_KST_ACCEL_COMPATIBLE来控制
80_c_m\update\alps\kernel-3.18\drivers\misc\mediatek\accelerometer\mc3xxx_auto\mc3xxx.c
static const struct of_device_id accel_of_match[] = {
{.compatible = "mediatek,gsensor"},
{},
};
80_c_m\update\alps\kernel-3.18\drivers\misc\mediatek\accelerometer\mxc6255\mxc622x.c
#if defined(CONFIG_KST_ACCEL_COMPATIBLE)
static const struct of_device_id accel_of_match[] = {
{.compatible = "mediatek,gsensor_1"},
{},
};
#else
static const struct of_device_id accel_of_match[] = {
{.compatible = "mediatek,gsensor"},
{},
};
#endif
四．Kconfig中添加KST_ACCEL_COMPATIBLE的配置
80_c_m\update\alps\kernel-3.18\kst\Kconfig
config KST_ACCEL_COMPATIBLE
bool "KST ACCEL COMPATIBLE aosp"
default n
---help---
Kingsentime KST ACCEL COMPATIBLE aosp
五．在mk中配置两种gsensor的驱动文件夹的名称，同时配置上KST_ACCEL_COMPATIBLE
update/alps/kst/make/v117_hd_chaoshang_128_b1b5_8Gb_2d2.mk
-KST_KERNEL_BOARD_CUSTOM05 =
+KST_KERNEL_BOARD_CUSTOM05 = KST_ACCEL_COMPATIBLE