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History for barebox / drivers / i2c / busses

2020-08-03	40bd23d Browse files » i2c: at91: extend for sama5d2 support ... Port over the Linux v5.8-rc4 bits to support i2c on the sama5d2. This has been tested by reading the i2c EEPROM on the sama5d27-som1-ek. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 21 Jul 2020 Sascha Hauer committed on 3 Aug 2020
2020-08-03	c667f8c Browse files » i2c: stm32: support new st,stm32mp15-i2c compatible ... Linux v5.8-rc1 has gained support for the FastMode+ registers on the stm32mp15, but those are incompatible between the stm32mp15 and the stm32f7, so a new compatible was introduced. The old compatible was replaced for the MP15 SoC, breaking I2C in barebox. Add the new compatible to fix this. Unlike Linux, we just use the same setup parameters as for the stm32f7. This is ok as long we don't want to support FastMode+. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 22 Jul 2020 Sascha Hauer committed on 3 Aug 2020
2020-07-14	f5c5f8a Browse files » treewide: Convert files covered by ARM copyright to SPDX ... According to Marc Zyngier, former employee at ARM, the company owns the copyright for code created by its employees. Convert accordingly to SPDX with the usual rearrangements. Also dropped Marc's email address which doesn't work any more. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Uwe Kleine-König authored on 11 Jul 2020 Sascha Hauer committed on 14 Jul 2020
	5e57f52 Browse files » i2c: designware: use proper type for writel argument ... We need to write DW_IC_ENABLE_ENABLE (1 << 0) to the register to enable, but instead we were writing true. This happens to work, but is quite unusual. Make the code more readable. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 6 Jul 2020 Sascha Hauer committed on 14 Jul 2020
	5fe4c6d Browse files » ARM: stm32mp: depend on ARCH_STM32MP for SoC drivers ... The i2c, MCI and reset controller peripherals are STM32-specific. There is no reason to ask uses on oldconfig about it, thus make them depend on ARCH_STM32MP \|\| COMPILE_TEST. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 2 Jul 2020 Sascha Hauer committed on 14 Jul 2020
2020-05-20	202b615 Browse files » treewide: replace commas with semicolons where appropriate ... Found by searching drivers/ arch/ common/ and lib/ for /^\s+[^."/\\[\s\{\(A-Z][^\[\{\(]=[^\{\(]+,$/ Because the comma has the lowest precedence in C, this shouldn't result in any functional change. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 17 May 2020 Sascha Hauer committed on 20 May 2020
2020-02-19	d19adc5 Browse files » I2C: i.MX: Add early i2c support for i.MX8M ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 19 Feb 2020
2020-02-12	c72aac9 Browse files » i2c: tegra: correct error message ... reset_control_get returns NULL when the controller reset is missing. The error pointer is used for malformed reset controller specification. Correct the message accordingly. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 10 Feb 2020 Sascha Hauer committed on 12 Feb 2020
2019-12-09	06f66d8 Browse files » Merge branch 'for-next/stm32' Sascha Hauer committed on 9 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
2019-09-09	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
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
2019-03-13	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
	9dd62d2 Browse files » i2c: i.MX: move disabling of controller out of i2c_fsl_stop ... Move disabling of the controller out of i2c_fsl_stop(). This makes the function reusable in other places in the next patch. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019
	8bba223 Browse files » i2c: i.MX: Do not call i2c_fsl_bus_busy twice ... In i2c_fsl_stop() we call i2c_fsl_bus_busy() a second time when it fails. If it fails once it won't succeed the second time, so drop the second call. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Feb 2019