Commit graph

16 commits

Author SHA1 Message Date
Erwan Gouriou
f21de9dfe6 drivers/i2c: stm32: use new pinctrl API
Use the new pinctrl API to configure pins.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-11-26 11:36:42 +01:00
Erwan Gouriou
b38d84fef4 drivers/i2c: stm32: Add pinctrl configuration at driver init
Convert driver to pcintrl configuration using pcintrl helper
macros.
Pinctrl init sequence has to be done before bus_mutex initialization.

Driver dts bindings are updated to reflect usage of pinctrl-x
properties

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2020-10-09 11:52:59 +02:00
Tomasz Bursztyka
e18fcbba5a device: Const-ify all device driver instance pointers
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.

A coccinelle rule is used for this:

@r_const_dev_1
  disable optional_qualifier
@
@@
-struct device *
+const struct device *

@r_const_dev_2
 disable optional_qualifier
@
@@
-struct device * const
+const struct device *

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Laurent Meunier
1603c329bd drivers: i2c_ll_stm32_v2: add support for optional timing property
In case optional timings property has been defined in DT, let's use it
and look for a matching peripheral clock and i2c bus clock so that
timing value is used instead of using runtime algorithm.

If matching the current configuration, the value will be set directly to
the I2C_TIMINGR register through the LL API.

This property is only valid for I2C V2 peripheral, so the timing config
structure member is only added in case of CONFIG_I2C_STM32_V2. Also the
initialization of the member is done conditionnaly, only in case
it is defined in DT, otherwise timings table will be empty.

Signed-off-by: Laurent Meunier <laurent.meunier@st.com>
2020-08-28 11:36:58 +02:00
Tomasz Bursztyka
98d9b01322 device: Apply driver_api/data attributes rename everywhere
Via coccinelle:

@r_device_driver_api_and_data_1@
struct device *D;
@@
(
D->
-	driver_api
+	api
|
D->
-	driver_data
+	data
)

@r_device_driver_api_and_data_2@
expression E;
@@
(
net_if_get_device(E)->
-	driver_api
+	api
|
net_if_get_device(E)->
-	driver_data
+	data
)

And grep/sed rules for macros:

git grep -rlz 'dev)->driver_data' |
	xargs -0 sed -i 's/dev)->driver_data/dev)->data/g'

git grep -rlz 'dev->driver_data' |
	xargs -0 sed -i 's/dev->driver_data/dev->data/g'

git grep -rlz 'device->driver_data' |
	xargs -0 sed -i 's/device->driver_data/device->data/g'

Fixes #27397

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-08-11 19:30:53 +02:00
Tomasz Bursztyka
af6140cc0d device: Apply config_info rename everywhere
Via coccinelle:

@r_device_config@
struct device *D;
@@

D->
-	config_info
+	config

And 2 grep/sed rules for macros:

git grep -rlz 'dev)->config_info' |
	xargs -0 sed -i 's/dev)->config_info/dev)->config/g'

git grep -rlz 'dev->config_info' |
	xargs -0 sed -i 's/dev->config_info/dev->config/g'

Fixes #27397

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-08-11 19:30:53 +02:00
Kumar Gala
a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
Tomasz Bursztyka
97326c0445 device: Fix structure attributes access
Since struct devconfig was merged earlier into struct device, let's fix
accessing config_info, name, ... attributes everywhere via:

grep -rlZ 'dev->config->' | xargs -0 sed -i 's/dev->config->/dev->/g'

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-05-08 23:07:44 +02:00
Armando Visconti
ab06ec63f9 drivers/i2c: stm32: (FIX) add mutex to lock bus
Add mutex to lock STM32 I2C bus in order to guarantee
that data transfers are atomic and have exclusive access
to the bus.
Issue has been found fetching data from multiple sensors
on I2C bus in a mixed context of thread and triggered
interrupt.

Signed-off-by: Armando Visconti <armando.visconti@st.com>
2019-01-16 21:33:49 -05:00
Flavio Ceolin
67ca176754 headers: Fix headers across the project
Any word started with underscore followed by and uppercase letter or a
second underscore is a reserved word according with C99.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-09-17 15:49:26 -04:00
Daniel Wagenknecht
c7875b75aa i2c: stm32_v2: implement slave support
This patch adds I2C Slave support conforming to the syscalls and funcs,
only for the STM32 V2 I2C Driver for the moment.

It is capable of handling multi-master bus setups.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Daniel Wagenknecht <wagenknecht@clage.de>
2018-07-04 11:57:33 +02:00
Neil Armstrong
59d33b5f27 i2c: stm32_ll: add support for STM32F0 with combined irq
The STM32F0 has only a single IRQ line, add a combined IRQ handler.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-12-12 12:36:08 -06:00
Yannis Damigos
b80da2b710 drivers: i2c_ll_stm32: Use I2C API flags
STM32 I2C driver doesn't use the I2C API flags STOP/RESTART,
instead it uses its own RESTART flag. As a result, I2C API's
i2c_burst_write* funtions doesn't work. This patch makes
STM32 I2C driver to use I2C API flags.

Tested on: 96b_carbon, olimexino_stm32 (i2c_ll_stm32_v1)
Tested on: stm32f3_disco, disco_l475_iot1 (i2c_ll_stm32_v2)

Fixes: #4459

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
Signed-off-by: Daniel Wagenknecht <wagenknecht@clage.de>
2017-11-15 09:09:58 -06:00
Kumar Gala
83643a2266 drivers: i2c: remove usage of bitfield access for cfg
Cleanup I2C drivers to not use bitfield access for config information
and instead use accessor macros that use shifts & masks.  This is
cleanup towards removing the bitfield access in the future.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-09-20 10:16:14 -05:00
Kumar Gala
99c19c62e1 i2c: stm32: Remove usage of CONFIG_I2C_x_DEFAULT_CFG
Stop using CONFIG_I2C_x_DEFAULT_CFG to get the initial value.  Since we
only support master mode we always default to it for initial config and
we get the bitrate from the device tree.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-08-16 10:03:34 -05:00
Jorge Ramirez-Ortiz
21fbc9b07e drivers: i2c: stm32 LL F1/F4 (v1) STM32 F3/L4X (v2)
Supports STM32 F1/F4 (v1 controller) and STM32 F3/L4X (v2
controller)

v1 could also support L1X.
v2 could also support F7X.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
Reviewed-by: Yannis Damigos <giannis.damigos@gmail.com>
Tested-by: Yannis Damigos <giannis.damigos@gmail.com>
Tested-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
2017-07-01 08:36:51 -04:00