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path: root/drivers/i2c
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2018-04-17i2c: designware: add reset ctrl to driverDinh Nguyen
Add code to look for a reset manager property. Specifically, look for the reset-names of 'i2c'. A reset property is an optional feature, so only print out a warning and do not fail if a reset property is not present. If a reset property is discovered, then use it to deassert, thus bringing the IP out of reset. Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2018-04-15Merge git://git.denx.de/u-boot-imxTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-11i2c: fsl: Add option to get clock from DTMario Six
Add an option to get the clock speed from the device tree, hence adding compatibility with DM clock drivers. Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-04-11i2c: fsl: Use dev_read_addrMario Six
Since bus translations are now fully supported, use a plain "dev_read_addr" to get the device address from the device tree. Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-04-11i2c: ihs_i2c: Use new fpgamap interfaceMario Six
The fpgamap interface has been switched to a "single function + data size" interface. Reflect this change in the IHS I2C driver. Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-04-11dm: i2c: implement gpio-based I2C deblockAlexander Kochetkov
The commit implement a gpio-based software deblocking. The code extract I2C pins description from device tree, switch pins to GPIO mode, toggle SCL until slave release SDA, send I2C stop and switch I2C pins back to I2C mode. Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
2018-04-06soft_i2c: cleanup - no mpc8xx supportChristophe Leroy
commit 907208c452999 ("powerpc: Partialy restore core of mpc8xx") didn't bring back support for I2C on the mpc8xx Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-03-29drivers: i2c: mxc: Update support to 8 I2C controllersSriram Dash
Existing driver supports upto 4 I2C controllers. But some of future NXPs SoCs like lx2160a has eight I2C controllers. Update MXC driver to support upto 8 I2C controllers Signed-off-by: Sriram Dash <sriram.dash@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2018-03-29drivers: i2c: mxc: Update SYS_I2C_MXC_I2C support in KconfigSriram Dash
NXP layerscape platforms like ls1088a, ls2088a uses MXC I2C Controller. -Remove dependency of MX6 for the same. Update related configs to use Kconfig file. -Add SYS_I2C_MXC_I2C1,_I2C2,_I2C3,_I2C4 in Kconfig -Add CONFIG_SYS_MXC_I2C1_SPEED,_I2C2_,_I2C3_,_I2C4_ in Kconfig -Add CONFIG_SYS_MXC_I2C1_SLAVE,_I2C2_,_I2C3_,_I2C4_ in Kconfig Signed-off-by: Sriram Dash <sriram.dash@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2018-03-23i2c: lpi2c: remove superfluous assignmentsHeinrich Schuchardt
In lpi2c_status_t result = A; result = B; the first assignment has no effect. Let's remove it. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-03-19arm: stm32: add new architecture for STM32MP familyPatrick Delaunay
- add new arch stm32mp for STM32 MPU/Soc based on Cortex A - support for stm32mp157 SOC - SPL is used as first boot stage loader - using driver model for all the drivers, even in SPL - all security feature are deactivated (ETZC and TZC) - reused STM32 MCU drivers when it is possible Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19stm32mp: stm32f7_i2c: use calloc instead of kmallocPatrick Delaunay
Kmalloc is using memalign allocation function. It is not necessary to align this structure so to save bytes, we move to calloc. And kmalloc function can't be used in SPL early stage (in board_init_f()) Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-09treewide: Fix gdsys mail addressesMario Six
The @gdsys.cc addresses are supposed to be used for mailing lists. Switch all occurrences of @gdsys.de mail addresses to their @gdsys.cc equivalent. Also, Dirk's address was wrong in one place; fix that as well. Signed-off-by: Mario Six <six@gdsys.cc>
2018-03-01i2c: Added kconfig support for CONFIG_ZYNQ_I2C0 and CONFIG_ZYNQ_I2C1Vipul Kumar
This patch added Kconfig support for CONFIG_ZYNQ_I2C0 and CONFIG_ZYNQ_I2C1 and enabled it in respective defconfig. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-01i2c: Added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SPEEDVipul Kumar
This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SPEED and set it to default value 100000. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-01i2c: Added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SLAVEVipul Kumar
This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SLAVE and set it default to 0. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-01i2c: Added Kconfig support for CONFIG_SYS_I2C_ZYNQVipul Kumar
This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-02-19i2c: mvtwsi.c: Fix set speedStefan Mavrodiev
Previous patch for this driver breaks i2c initialization. commit 8bcf12ccce89 ("i2c: mvtwsi.c: Avoid NULL dereference") If actual_speed is passed as NULL in this function: static void __twsi_i2c_init(struct mvtwsi_registers *twsi, int speed, int slaveadd, uint *actual_speed) than __twsi_i2c_set_bus_speed never get called. This causes i2c clock to run on default speed - 2MHz (measured with oscilloscope). This is issue on some boards, sunxi for example, since on I2C0 bus PMU is connected. The bootlogs with and without the patch are as follows: Wihtout the patch: U-Boot SPL 2018.03-rc2 (Feb 13 2018 - 09:23:17 +0200) DRAM: 1024 MiB Failed to set core voltage! Can't set CPU frequency Trying to boot from FEL U-Boot 2018.03-rc2 (Feb 13 2018 - 09:23:17 +0200) Allwinner Technology CPU: Allwinner A20 (SUN7I) Model: Olimex A20-OLinuXino-LIME2 I2C: ready DRAM: 1 GiB MMC: SUNXI SD/MMC: 0 With the patch: U-Boot SPL 2018.03-rc2-00001-g838ff85 (Feb 13 2018 - 09:24:34 +0200) DRAM: 1024 MiB CPU: 912000000Hz, AXI/AHB/APB: 3/2/2 Trying to boot from FEL U-Boot 2018.03-rc2-00001-g838ff85 (Feb 13 2018 - 09:24:34 +0200) Allwinner Technology CPU: Allwinner A20 (SUN7I) Model: Olimex A20-OLinuXino-LIME2 I2C: ready DRAM: 1 GiB MMC: SUNXI SD/MMC: 0 Signed-off-by: Stefan Mavrodiev <stefan@olimex.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2018-02-17i2c: rcar_iic: Allow IIC on RCar Gen2Marek Vasut
The IIC on Gen2 is compatible with this driver as well, allow it. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-02-06i2c: mvtwsi.c: Avoid NULL dereferenceHeinrich Schuchardt
For '#ifndef CONFIG_DM_I2C' twsi_i2c_init() passes NULL as 4th parameter to __twsi_i2c_init(). Identified with cppcheck. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-02-06i2c: ihs_i2c: Factor out send_buffer methodMario Six
Simplify the driver logic by extracting a common send_buffer method. Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-02-06i2c: ihs_i2c: Make DM compatibleMario Six
Make the ihs_i2c driver DM-compatible; for legacy boards, the old functions are retained within #ifdefs. No board uses the new DM driver yet; this patch only lays the foundation for future support. Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-02-06i2c: ihs_i2c: Prepare DM conversionMario Six
Prepare the function interface of the ihs_i2c driver for DM conversion in a future patch. While we're at it, fix some style violations, and make the code more readable. Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-02-06i2c: fsl_i2c: Make live-tree compatibleMario Six
Make the fsl_i2c driver compatible with a live device tree. Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-02-06i2c: fsl_i2c: Remove inline declarationsMario Six
Some functions in the fsl_i2c driver are declared as inline, even though they are quite large, which needlessly increases the size of the resulting binary. This patch removes the inline declarations. Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-02-06i2c: fsl_i2c: Fix style violationsMario Six
Fix some style violations in the fsl_i2c I2C driver, and use shorter type names for variables in some cases. Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-01-30Convert CONFIG_SYS_OMAP24_I2C_SLAVE et al to KconfigAdam Ford
This converts the following to Kconfig: CONFIG_SYS_OMAP24_I2C_SLAVE CONFIG_SYS_OMAP24_I2C_SPEED Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Paul Kocialkowski <contact@paulk.fr>
2018-01-16i2c: mxc_i2c: Use or operationPeng Fan
The operation should be OR, not BIT OR. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Heiko Schocher <hs@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2018-01-16i2c: lpi2c: do not add 4 for bus seqPeng Fan
The number 4 is dedicated on i.MX7ULP, but lpi2c will be reused on i.MX8, 4 is not valid. The seq number could be configured by alias node. The following patch will use i2c4 as the begin for i.MX7ULP. Signed-off-by: Peng Fan <peng.fan@nxp.com>
2017-12-07i2c: at91_i2c: remove the .probe_chip functionAlan Ott
The .probe_chip function is supposed to probe an i2c device on the bus to determine whether a device is answering to a particular address. at91_i2c_probe_chip() did not do anything resembling this and always returned 0. It looks as though at91_i2c_probe_chip() was intended to be a .probe function for the controller, as it was copied-and-pasted to become at91_i2c_probe() in 0bc8f640a4d7ed. Removing the at91_i2c_probe_chip() function makes the higher layer (i2c_probe_chip()) try a zero-length read transfer to test for the presence of a device instead, which does work. Signed-off-by: Alan Ott <alan@softiron.com> Acked-by: Wenyou Yang <wenyou.yang@microchip.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-12-07i2c: at91_i2c: Wait for TXRDY after sending the first byteAlan Ott
The driver must wait for TXRDY after each byte is pushed into the i2c FIFO before pushing the next byte. Previously this was not done for the first byte, causing a race condition with zeros sometimes being sent for the next byte (which is typically the first actual data byte). Signed-off-by: Alan Ott <alan@softiron.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-12-07i2c: meson: add some commentsBeniamino Galvani
Add some comment describing the purpose of struct members and functions. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-12-07i2c: meson: fix return codes on errorBeniamino Galvani
Change meson_i2c_xfer_msg() to return -EREMOTEIO in case of NACK, as done by other drivers. Also, don't change the return error in meson_i2c_xfer(). Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-12-07i2c: meson: reduce timeoutBeniamino Galvani
The datasheet doesn't specify a suggested timeout and 500ms seems very long: reduce it to 100ms. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-12-07i2c: meson: improve Kconfig descriptionBeniamino Galvani
Expand the Kconfig description with hardware features. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-11-30i2c: rcar_iic: Add RCar IIC driverMarek Vasut
Add driver for the RCar IIC or DVFS I2C controller. This driver is based on the SH I2C driver, but supports DM and DT probing as well as modern I2C framework API. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-11-27Merge git://www.denx.de/git/u-boot-imxTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-11-20i2c: add Amlogic Meson driverBeniamino Galvani
Add a driver for the I2C controller available on Amlogic Meson SoCs. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
2017-11-20imx: mxc_i2c: tweak the i2c transfer methodNandor Han
Tweak the i2c transfer to work for devices that want to read data without addressing a register. Signed-off-by: Nandor Han <nandor.han@ge.com> Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Acked-by: Heiko Schocher <hs@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2017-10-27i2c: fti2c010: remove unused/unmaintained driverMasahiro Yamada
CONFIG_SYS_I2C_FTI2C010 is not enabled by anyone. Commit 2852709676c8 ("dm: i2c: Add a note to I2C drivers which need conversion") prompted to convert this driver to DM before June 2017, but not converted yet. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Heiko Schocher <hs@denx.de>
2017-10-27i2c: adi_i2c: remove left-over Blackfin I2C driverMasahiro Yamada
This driver was used by Blackfin boards, but Blackfin support is gone. There is no user of this driver. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Heiko Schocher <hs@denx.de>
2017-10-17i2c: stm32f7_i2c: fix usage of useless local variablePatrice Chotard
Remove useless local variable "s" and use directly function's parameter "output" Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-10-17i2c: stm32f7_i2c: fix data abortChristophe Kerello
As "v" is a local variable in stm32_i2c_choose_solution() "v" has to be copied into "s" to avoid data abort in stm32_i2c_compute_timing(). Signed-off-by: Christophe Kerello <christophe.kerello@st.com> Reviewed-by: Patrick DELAUNAY <patrick.delaunay@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-10-17i2c: remove DECLARE_GLOBAL_DATA_PTR from i2c-uclassMasahiro Yamada
No global pointer is used in this file. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-10-15i2c: uniphier-f: replace debug() with dev_dbg()Masahiro Yamada
Use dev_dbg() functions. It will be helpful to prefix log messages with the corresponding device name when the core framework is ready. While I am here, I renamed "dev", which was actually private data, into "priv" because dev->dev looks confusing. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-15i2c: uniphier: replace debug() with dev_dbg()Masahiro Yamada
Use dev_dbg() functions. It will be helpful to prefix log messages with the corresponding device name when the core framework is ready. While I am here, I renamed "dev", which was actually private data, into "priv" because dev->dev looks confusing. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-11i2c: muxes: pca954x: look up width from chip_descChris Packham
Commit 8e6eda7cda6c ("drivers/i2c/muxes/pca954x: Add pca9547 I2C mux support") introduced a chip_desc for the pca954x devices but failed to update pca954x_ofdata_to_platdata() to be aware of it. Make pca954x_ofdata_to_platdata() lookup the chip_desc to validate the device width. Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Marek Behun <marek.behun@nic.cz>
2017-10-08dm: gpio: Correct use of -ENODEV in driversSimon Glass
In U-Boot -ENODEV means that there is no device. When there is a problem with the device, drivers should return an error like -ENXIO or -EREMOTEIO. When the device tree properties cannot be read correct , they should return -EINVAL. Update various GPIO drivers to follow this rule, to help with consistency for future driver writers. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Adam Ford <aford173@gmail.com>
2017-10-04treewide: replace with error() with pr_err()Masahiro Yamada
U-Boot widely uses error() as a bit noisier variant of printf(). This macro causes name conflict with the following line in include/linux/compiler-gcc.h: # define __compiletime_error(message) __attribute__((error(message))) This prevents us from using __compiletime_error(), and makes it difficult to fully sync BUILD_BUG macros with Linux. (Notice Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().) Let's convert error() into now treewide-available pr_err(). Done with the help of Coccinelle, excluing tools/ directory. The semantic patch I used is as follows: // <smpl> @@@@ -error +pr_err (...) // </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Re-run Coccinelle] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-01rockchip: i2c: rk3328: support i2c for rk3328 SoCElaine Zhang
Add compatible to support rk3328 i2c Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Acked-by: Heiko Schocher<hs@denx.de>
generated by cgit (git 2.34.1) at 2024-12-23 23:47:34 +0000