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History for barebox / drivers / i2c

2019-12-09	06f66d8 Browse files » Merge branch 'for-next/stm32' Sascha Hauer committed on 9 Dec 2019
2019-12-09	77d783a Browse files » Merge branch 'for-next/randfixes' Sascha Hauer committed on 9 Dec 2019
2019-12-02	9e477e2 Browse files » i2c: always walk down into i2c/busses Makefile ... Otherwise CONFIG_I2C_IMX_EARLY won't be built if !CONFIG_I2C even though it has no direct dependency on the i2c core. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Lucas Stach authored on 29 Nov 2019 Sascha Hauer committed on 2 Dec 2019
2019-11-25	1d9ee69 Browse files » i2c: gpio: use of_get_named_gpio() instead of of_get_named_gpio_flags() ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 20 Nov 2019 Sascha Hauer committed on 25 Nov 2019
2019-11-13	76f136d Browse files » i2c: stm32: use device_reset_us helper instead of open-coding ... The exact sequence is already available in form of device_reset_us. Make use of it. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 12 Nov 2019 Sascha Hauer committed on 13 Nov 2019
2019-10-14	a6438ad Browse files » i2c-mux-pca954x: Add support for "i2c-mux-idle-disconnect" ... Add support for "i2c-mux-idle-disconnect" binding to match the behavior, already present in upstream kernel driver. This feature is a must have for I2C bus topologies with multiple muxes connected to child segments containing slaves with identical addresses (e.g. ZII's SCU4) Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Andrey Smirnov authored on 8 Oct 2019 Sascha Hauer committed on 14 Oct 2019
2019-09-12	45d273f Browse files » Merge branch 'for-next/stm32' Sascha Hauer committed on 12 Sep 2019
2019-09-09	f49b072 Browse files » i2c: add stm32f7 I2C adapter driver ... This patch adds initial support for the STM32F7 I2C controller. It was tested to work with the STM32MP157C. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 9 Sep 2019 Sascha Hauer committed on 9 Sep 2019
	f1bdb26 Browse files » i2c: port Linux i2c_parse_fw_timings ... Linux has a generic function for extracting i2c timings parameters from device-associated firmware nodes. Port this function to barebox, but have it only work on device tree nodes for now. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 9 Sep 2019 Sascha Hauer committed on 9 Sep 2019
	c1388ea Browse files » i2c/pca954x: Initialize the mux to disconnected state ... Port of a Linux kernel commit `cd823db` pca954x power-on default is channel 0 connected. If multiple pca954x muxes are connected to the same physical I2C bus, the parent bus will see channel 0 devices behind both muxes by default. This is bad. Scenario: -- pca954x @ 0x70 -- ch 0 (I2C-bus-101) -- EEPROM @ 0x50 \| I2C-bus-1 --- \| -- pca954x @ 0x71 -- ch 0 (I2C-bus-111) -- EEPROM @ 0x50 1. Load I2C bus driver: creates I2C-bus-1 2. Load pca954x driver: creates virtual I2C-bus-101 and I2C-bus-111 3. Load eeprom driver 4. Try to read EEPROM @ 0x50 on I2C-bus-101. The transaction will also bleed onto I2C-bus-111 because pca954x @ 0x71 channel 0 is connected by default. Fix: Initialize pca954x to disconnected state in pca954x_probe() Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Andrey Smirnov authored on 7 Sep 2019 Sascha Hauer committed on 9 Sep 2019
2019-08-30	69a014f Browse files » i2c-mux-pca954x: remove use of uninitialized variable ... force isn't used except to print its uninitialized value in an error path. Drop it. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 22 Aug 2019 Sascha Hauer committed on 30 Aug 2019
2019-08-15	20d9c22 Browse files » ARM: i.MX: scb9328: refurbish board suport ... - switch the i.MX1 based scb9328 board to device tree - Remove scb9328_defconfig and enable scb9328 board support in imx_defconfig - Remove old environment and switch to new default environment Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 15 Aug 2019
2019-06-26	a94a9bf Browse files » i2c: gpio: add sda/scl-gpios property support ... The gpios property is marked as deprecated since kernel 4.15 so we should support the "new" mechanism too. The new mechanism has a higher priority than the deprecated one. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Marco Felsch authored on 17 Jun 2019 Sascha Hauer committed on 26 Jun 2019
2019-06-13	5c88c98 Browse files » treewide: remove stale mentions of CONFIG_OF in comments ... barebox doesn't define a CONFIG_OF kconfig option, but CONFIG_OFTREE for the device tree handling and CONFIG_OFDEVICE for probing devices out of the device tree. Replace comment mentions of CONFIG_OF with mentions of either as appropriate. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 11 Jun 2019 Sascha Hauer committed on 13 Jun 2019
2019-04-09	9047e06 Browse files » Merge branch 'for-next/misc' Sascha Hauer committed on 9 Apr 2019
2019-03-21	43e02c5 Browse files » treewide: surround Kconfig file paths with double quotes ... Based on Linux commit `8636a1f` This will be needed when you sync Kconfig with Linux 5.0 or later. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Masahiro Yamada authored on 20 Mar 2019 Sascha Hauer committed on 21 Mar 2019
2019-03-13	cb0eea7 Browse files » i2c: i.MX: Add layerscape support ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 13 Mar 2019
2019-03-04	f9b18e5 Browse files » i2c: i.MX: Add early driver for use in PBL ... i2c is used in SPD EEPROMs and thus needed very early before barebox is up. This patch adds a i.MX i2c driver variant for use in PBL. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Mar 2019
2019-02-27	3f5fa1a Browse files » i2c: i.MX: Create header file for register defines ... We'll add a stripped down driver variant for use in PBL. To share the register defines add a header file for them. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	f8c4f90 Browse files » i2c: i.MX: Read clock-frequency from device tree ... We speed up the clock frequency only if probed via platform_data. Additionally honour the "clock-frequency" property. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	39ed101 Browse files » i2c: i.MX: remove unused define ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	43dd6b0 Browse files » i2c: i.MX: stop after read only in last transfer of a message ... Following the Linux driver the controller should be stopped in the read transfer path only after the last transfer of a message, but not when other transfers of the same message are following. Implement this behaviour for the barebox driver aswell. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	227dbe1 Browse files » i2c: i.MX: Consolidate status polling loops ... We poll for different bits in the status register in different functions. Instead of repeating the polling loops each time create a helper function for it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	6e67aec Browse files » i2c: i.MX: remove unnecessary ifdef ... dev_dbg is a no-op when debugging is disabled, so no need for extra ifdefs. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	765b890 Browse files » i2c: i.MX: Fix FSL_I2C_DFSRR register offset ... 4ed5b77 ("i.MX: i2c: Add Vybrid support") introduced regshifts for the register offsets, but missed to adjust the register offset for the FSL_I2C_DFSRR register (which exists only on PowerPC). Fix this. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	ea7df48 Browse files » i2c: i.MX: remove unnecessary ifdef ... No need to put the of_compatible field into ifdefs, remove them. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	8eab50e Browse files » i2c: i.MX: remove unnecesary define ... No need for a define which is used only once. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	47f303a Browse files » i2c: i.MX: fix variable name ... i2c_fsl_write() and i2c_fsl_read() take exactly one i2c message, not multiple ones, hence rename the variable from "msgs" to "msg". Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	ae9ce45 Browse files » i2c: i.MX: consolidate code ... We have to write to FSL_I2C_I2DR and wait for completion/ack three times in the code. Instead of open coding it each time create a helper function for it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	16f4065 Browse files » i2c: i.MX: Track stopped status in I2CR_MSTA bit ... We can track the stopped status in the I2CR_MSTA bit, no need for an extra variable. Also we can call i2c_fsl_stop() instead of open coding it in i2c_fsl_read(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019