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i2c.c: make use of no_bus_mux flag

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This patch makes use of no_bus_mux flag in mraa_board_t to skip
unnessary mux checks.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Srinivas Kandagatla
2015-12-11 16:26:16 +00:00
committed by Brendan Le Foll
parent e14534b071
commit b2e8af641b
1 changed files with 13 additions and 12 deletions
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25
src/i2c/i2c.c
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@@ -161,20 +161,21 @@ mraa_i2c_init(int bus)
syslog(LOG_ERR, "Invalid i2c bus, moving to default i2c bus");
bus = board->def_i2c_bus;
}
int pos = board->i2c_bus[bus].sda;
if (board->pins[pos].i2c.mux_total > 0) {
if (mraa_setup_mux_mapped(board->pins[pos].i2c) != MRAA_SUCCESS) {
syslog(LOG_ERR, "i2c: Failed to set-up i2c sda multiplexer");
return NULL;
if (!board->no_bus_mux) {
int pos = board->i2c_bus[bus].sda;
if (board->pins[pos].i2c.mux_total > 0) {
if (mraa_setup_mux_mapped(board->pins[pos].i2c) != MRAA_SUCCESS) {
syslog(LOG_ERR, "i2c: Failed to set-up i2c sda multiplexer");
return NULL;
}
}
}
pos = board->i2c_bus[bus].scl;
if (board->pins[pos].i2c.mux_total > 0) {
if (mraa_setup_mux_mapped(board->pins[pos].i2c) != MRAA_SUCCESS) {
syslog(LOG_ERR, "i2c: Failed to set-up i2c scl multiplexer");
return NULL;
pos = board->i2c_bus[bus].scl;
if (board->pins[pos].i2c.mux_total > 0) {
if (mraa_setup_mux_mapped(board->pins[pos].i2c) != MRAA_SUCCESS) {
syslog(LOG_ERR, "i2c: Failed to set-up i2c scl multiplexer");
return NULL;
}
}
}