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bsp/imx: Add cs_change support to SPI

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This commit is contained in:
Christian Mauderer
2021-09-28 14:19:47 +02:00
parent 38c2147759
commit 1fc3f17127
1 changed files with 6 additions and 4 deletions
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10
bsps/arm/imx/spi/imx-ecspi.c
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@@ -351,6 +351,9 @@ static void imx_ecspi_interrupt(void *arg)
} else if (bus->in_transfer > 0) {
regs->intreg = IMX_ECSPI_RR;
} else {
if (bus->msg->cs_change) {
imx_ecspi_set_chipsel(bus, IMX_ECSPI_CS_NONE);
}
--bus->msg_todo;
++bus->msg;
imx_ecspi_next_msg(bus, regs);
@@ -377,9 +380,6 @@ static int imx_ecspi_check_messages(
(msg->cs > IMX_ECSPI_MAX_CHIPSELECTS || !bus->cspins[msg->cs].valid)) {
return -EINVAL;
}
if (msg->cs_change != 0) {
return -EINVAL;
}
++msg;
--size;
@@ -408,7 +408,9 @@ static int imx_ecspi_transfer(
imx_ecspi_next_msg(bus, bus->regs);
rtems_event_transient_receive(RTEMS_WAIT, RTEMS_NO_TIMEOUT);
imx_ecspi_set_chipsel(bus, IMX_ECSPI_CS_NONE);
if (msgs[n-1].cs_change) {
imx_ecspi_set_chipsel(bus, IMX_ECSPI_CS_NONE);
}
}
return rv;
}