Convert from device_get_binding to DEVICE_DT_GET. In doing this we
no longer need the label in the devicetree node so we remove that.
Removed all __ASSERT_NO_MSG(clk) since we'll get a build error if
DEVICE_DT_GET cant be satisfied, and the clock control api's will
handle reporting if the device_is_ready.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
In order to ease reuse on other series, set DMA as optional
and use IT if no DMA channel is specified in the qspi node.
Tested on disco_l475_iot1
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Add support for DMA based STM32 QSPI NOR flash controller.
Driver configures both NOR flash and also QSPI hardware block.
Reuses existing jesd216 library.
QSPI hardware block handling is done through the use of Cube HAL API.
This requires the use of HAL interface also for DMA besides zephyr
DMA driver.
Zephyr DMA driver is used only for IRQ routing while HAL driver
handles the IP block. To achieve this it is required to:
-Configure both Cube and Zephyr drivers at init.
-Inform Zephyr driver that current channel handling will be done
by another instance and only a limited configuration should be done.
For this last part, a unused parameter is overridden in order to
transmit the information.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
