This commit modifies the I2S driver to work for STM32H7
family of MCU's. Currently only TX is working.
Tested on nucleo_stm32h743zi. Requires dma1 & dmamux1 to be enabled.
Signed-off-by: Emil Lindqvist <emil@lindq.gr>
Update I2S drivers to use DT_HAS_<compat>_ENABLED Kconfig symbol
to expose the driver and enable it by default based on devicetree.
We remove 'depend on' Kconfig for symbols that would be implied by
the devicetree node existing.
Signed-off-by: Kumar Gala <galak@kernel.org>
According to Kconfig guidelines, boolean prompts must not start with
"Enable...". The following command has been used to automate the changes
in this patch:
sed -i "s/bool \"[Ee]nables\? \(\w\)/bool \"\U\1/g" **/Kconfig*
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Use this short header style in all Kconfig files:
# <description>
# <copyright>
# <license>
...
Also change all <description>s from
# Kconfig[.extension] - Foo-related options
to just
# Foo-related options
It's clear enough that it's about Kconfig.
The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)
git ls-files '*Kconfig*' | \
xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
I2S_STM32 is already within an 'if I2S', in drivers/i2s/Kconfig.
'if FOO' is just shorthand for adding 'depends on FOO' to each item
within the 'if'. Dependencies on menus work similarly. There are no
"conditional includes" in Kconfig, so 'if FOO' has no special meaning
around a source. Conditional includes wouldn't be possible, because an
if condition could include (directly or indirectly) forward references
to symbols not defined yet.
Tip: When adding a symbol, check its dependencies in the menuconfig
('ninja menuconfig', then / to jump to the symbol). The menuconfig also
shows how the file with the symbol got included, so if you see
duplicated dependencies, it's easy to hunt down where they come from.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Some more were added since the cleanup pass in June 2018. See e.g.
commit 2d50da70a1 ("drivers: ipm: Kconfig: Remove redundant 'default n'
properties") for a motivation. It also avoids people wondering whether
or not they need to put in 'default n'.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
STM32 I2S driver implementation. It has been designed in the most
generic way possible, with the possibility of using it in master/slave
and rx/tx mode. Currenty it has been tested for master rx mode only
using the microphone on ArgonKey board.
The configuration file permits to compile it for STM32F4xx product
family only, but it should be easy to extend it also for other
families.
It supports all 5 STM32F4xx I2S controllers (I2S 1/4/5 on APB2 and
I2S 2/3 on APB1).
It makes uses of the available DMA channels for rx/tx streams.
The clock source can be selected among one of the following two choices:
- PLLI2S pll, with possibility to configure PLLM/PLLN/PLLR
- HSE/HSI clock
Interrupt is triggered only in case of errors (FRM/OVR/UDR).
Signed-off-by: Armando Visconti <armando.visconti@st.com>
