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author | Christian Mauderer <christian.mauderer@embedded-brains.de> | 2021-09-28 14:19:47 +0200 |
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committer | Christian Mauderer <christian.mauderer@embedded-brains.de> | 2021-10-06 10:24:03 +0200 |
commit | 1fc3f171270b651ae871e5131da55b5825a11686 (patch) | |
tree | aa3210dd1a10f6a6d375a184332b3587cfd57a9b | |
parent | rtems: Set postponed jobs in rate-monotonic cancel (diff) | |
download | rtems-1fc3f171270b651ae871e5131da55b5825a11686.tar.bz2 |
bsp/imx: Add cs_change support to SPI
-rw-r--r-- | bsps/arm/imx/spi/imx-ecspi.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/bsps/arm/imx/spi/imx-ecspi.c b/bsps/arm/imx/spi/imx-ecspi.c index 1ffc4d9798..243f508d51 100644 --- a/bsps/arm/imx/spi/imx-ecspi.c +++ b/bsps/arm/imx/spi/imx-ecspi.c @@ -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; } |