Linux kernel documentation tree maintained by Jonathan Corbet http://mirrors.hust.edu.cn/git/lwn.git/atom?h=docs-5.10-3 2020-09-29T19:34:26+00:00 2020-09-29T19:34:26+00:00 Jarkko Nikula jarkko.nikula@linux.intel.com 2020-09-24T13:52:17+00:00 urn:sha1:332fdaebb64e6fe6fdd1b0463c88bafec0faa199 Add PCI ID of SMBus controller on Intel Alder Lake PCH-S Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@kernel.org> 2020-09-27T17:58:38+00:00 Khalil Blaiech kblaiech@mellanox.com 2020-09-22T22:49:37+00:00 urn:sha1:b5b5b32081cd206baa6e58cca7f112d9723785d6 Add BlueField I2C driver to offer master and slave support for Mellanox BlueField SoCs. The driver implements an SMBus adapter and interfaces to multiple busses that can be probed using both ACPI and Device Tree infrastructures. The driver supports several SMBus operations to transfer data back and forth from/to various I2C devices. It is mainly intended to be consumed by userspace tools and utilities, such as i2c-tools and decode-dimms to collect memory module information. On the other hand, the driver has a slave function to support, among others, an IPMB interface that requires both master and slave functions to handle transfers between the BlueField SoC and a board management controllers (e.g., BMC). Signed-off-by: Khalil Blaiech <kblaiech@mellanox.com> Reviewed-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> 2020-09-21T09:06:52+00:00 Wolfram Sang wsa+renesas@sang-engineering.com 2020-09-10T09:11:18+00:00 urn:sha1:c4651f11d09ac975b6593653edbf74b892523a8f The I2C core can now utilize a slave interface to handle SMBus HostNotify events. Enable it in this driver. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> 2020-09-18T21:02:02+00:00 Alain Volmat alain.volmat@st.com 2020-08-03T05:17:56+00:00 urn:sha1:6af077194600d5445f802ce4587a3254a215a851 Rely on the core functions to implement the host-notify protocol via the a I2C slave device. Signed-off-by: Alain Volmat <alain.volmat@st.com> Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> 2020-08-28T07:07:40+00:00 Dirk Behme dirk.behme@de.bosch.com 2020-08-27T09:23:30+00:00 urn:sha1:5b9bacf28a973a6b16510493416baeefa2c06289 The i2c-rcar driver utilizes the Generic Reset Controller kernel feature, so select the RESET_CONTROLLER option when the I2C_RCAR option is selected with a Gen3 SoC. Fixes: 2b16fd63059ab9 ("i2c: rcar: handle RXDMA HW behaviour on Gen3") Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Andy Lowe <andy_lowe@mentor.com> [erosca: Add "if ARCH_RCAR_GEN3" per Wolfram's request] Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> 2020-08-25T07:50:04+00:00 Jarkko Nikula jarkko.nikula@linux.intel.com 2020-08-20T08:05:25+00:00 urn:sha1:ab70935d37bbd2637125bea489308b896b2756de The default value for a config option defaults to 'n' so it doesn't need to be set here. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> [jdelvare: found another one] Signed-off-by: Wolfram Sang <wsa@kernel.org> 2020-08-14T01:41:00+00:00 Linus Torvalds torvalds@linux-foundation.org 2020-08-14T01:41:00+00:00 urn:sha1:e764a1e32337aaf325fc5b14a5bbd06eabba4699 Pull i2c updates from Wolfram Sang: - bus recovery can now be given a pinctrl handle and the I2C core will do all the steps to switch to/from GPIO which can save quite some boilerplate code from drivers - "fallthrough" conversion - driver updates, mostly ID additions * 'i2c/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (32 commits) i2c: iproc: fix race between client unreg and isr i2c: eg20t: use generic power management i2c: eg20t: Drop PCI wakeup calls from .suspend/.resume i2c: mediatek: Fix i2c_spec_values description i2c: mediatek: Add i2c compatible for MediaTek MT8192 dt-bindings: i2c: update bindings for MT8192 SoC i2c: mediatek: Add access to more than 8GB dram in i2c driver i2c: mediatek: Add apdma sync in i2c driver i2c: i801: Add support for Intel Tiger Lake PCH-H i2c: i801: Add support for Intel Emmitsburg PCH i2c: bcm2835: Replace HTTP links with HTTPS ones Documentation: i2c: dev: 'block process call' is supported i2c: at91: Move to generic GPIO bus recovery i2c: core: treat EPROBE_DEFER when acquiring SCL/SDA GPIOs i2c: core: add generic I2C GPIO recovery dt-bindings: i2c: add generic properties for GPIO bus recovery i2c: rcar: avoid race when unregistering slave i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c i2c: tegra: Fix runtime resume to re-init VI I2C i2c: tegra: Fix the error path in tegra_i2c_runtime_resume ... 2020-08-05T09:52:28+00:00 Mika Westerberg mika.westerberg@linux.intel.com 2020-06-18T13:42:39+00:00 urn:sha1:12745b071e2b6b43e623e6cce521a1cb3c4c28dc Add support for SMBus controller on Intel Emmitsburg PCH. This is the same IP as used in Cannon Lake and derivatives. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@kernel.org> 2020-07-01T09:10:43+00:00 Mike Rapoport rppt@linux.ibm.com 2020-06-10T06:57:50+00:00 urn:sha1:c59e68250c4b317c99f1d1a1e8f990fd8e608afd The unicore32 port is removed from the kernel. There is no point to keep stale i2c bus driver for this architecture. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Guenter Roeck <linux@roeck-us.net> 2020-06-03T20:39:12+00:00 Tali Perry tali.perry1@gmail.com 2020-05-27T20:08:19+00:00 urn:sha1:56a1485b102ed1cd5a4af8e87ed794699fd1cad2 Add Nuvoton NPCM BMC I2C controller driver. Signed-off-by: Tali Perry <tali.perry1@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>