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path: root/drivers/i2c
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2019-02-14i2c: tegra: fix maximum transfer sizeSowjanya Komatineni
Tegra186 and prior supports maximum 4K bytes per packet transfer including 12 bytes of packet header. This patch fixes max write length limit to account packet header size for transfers. Cc: stable@vger.kernel.org # 4.4+ Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-14i2c: tegra: add bus clear Master SupportSowjanya Komatineni
Bus clear feature of Tegra I2C controller helps to recover from bus hang when I2C master loses the bus arbitration due to the slave device holding SDA LOW continuously for some unknown reasons. Per I2C specification, the device that held the bus LOW should release it within 9 clock pulses. During bus clear operation, Tegra I2C controller sends 9 clock pulses and terminates the transaction with STOP condition. Upon successful bus clear operation, bus goes to idle state and driver retries the transaction. Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-14i2c: tegra: sort all the include headers alphabeticallySowjanya Komatineni
This patch sorts all the include headers alphabetically for the I2C Tegra driver. Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-14Merge branch 'i2c/for-current' into i2c/for-5.1Wolfram Sang
2019-02-08i2c: rcar: refactor TCYC handlingWolfram Sang
The latest documentation made it clear that we need to initialize the TCYC value independently of DMA. The old code used TCYC06 (wrongly) for non-DMA transfers. The new code sets TCYC up independently from DMA. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-08i2c: gpio: merge two very similar commentsWolfram Sang
I think it is clear enough if we have the explanation once and make it clear it is applicable for both SCL and SDA. Reword it a little with the help of Simon's native language skills :) Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-08i2c: sh_mobile: use new clock calculation formulas for Gen2Wolfram Sang
We measured the clock on a Lager and an Ebisu board. The new formula gives better results for both. So after Gen3, switch to this formula for all Gen2 SoCs. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-08i2c: sh_mobile: use new clock calculation formulas for Gen3Wolfram Sang
We could finally measure the clock on an Ebisu board. The new formula gives way better results, i.e. 100kHz instead of 106kHz and 400kHz instead of 387kHz. Switch to these formulas for all Gen3 SoCs. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-08i2c: sh_mobile: sort compatible entriesWolfram Sang
Makes it easier to add new ones. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-08i2c: cbus-gpio: Switch to use GPIO descriptorsLinus Walleij
This augments the CBUS GPIO I2C driver to use GPIO descriptors for clock, sel and data. We drop the platform data that was only used for carrying GPIO numbers and use machine descriptor tables instead. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: rcar: comment maintenanceWolfram Sang
Update copyright years and remove a comment which grew incorrect and useless over time. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: gpio: fault-injector: sort debugfs files alphabeticallyWolfram Sang
There is no value in chronological sorting. Make it easier to follow for humans. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: mediatek: remove completion_done()qii wang
Completion_done() is useless when we don't use its return value, so we remove it. Signed-off-by: qii wang <qii.wang@mediatek.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: mediatek: speeds is replaced by macros definitionsqii wang
Different speeds have been defined by macros, so we use macros definitions. Signed-off-by: qii wang <qii.wang@mediatek.com> Reviewed-by: Nicolas Boichat <drinkcat@chromium.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: gpio: sort includesWolfram Sang
Less risk for duplications when adding new ones. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: algo-bit: convert to SPDX headerWolfram Sang
And use kernel style for the remaining comments in the header. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: iop3xx: Add device tree probingLinus Walleij
This adds device tree probing support for the IOP3xx I2C master. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: of: Try to find an I2C adapter matching the parentThierry Reding
If an I2C adapter doesn't match the provided device tree node, also try matching the parent's device tree node. This allows finding an adapter based on the device node of the parent device that was used to register it. This fixes a regression on Tegra124-based Chromebooks (Nyan) where the eDP controller registers an I2C adapter that is used to read to EDID. After commit 993a815dcbb2 ("dt-bindings: panel: Add missing .txt suffix") this stopped working because the I2C adapter could no longer be found. The approach in this patch fixes the regression without introducing the issues that the above commit solved. Fixes: 17ab7806de0c ("drm: don't link DP aux i2c adapter to the hardware device node") Signed-off-by: Thierry Reding <treding@nvidia.com> Tested-by: Tristan Bastian <tristan-c.bastian@gmx.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-05i2c: omap: Use noirq system sleep pm ops to idle device for suspendTony Lindgren
We currently get the following error with pixcir_ts driver during a suspend resume cycle: omap_i2c 4802a000.i2c: controller timed out pixcir_ts 1-005c: pixcir_int_enable: can't read reg 0x34 : -110 pixcir_ts 1-005c: Failed to disable interrupt generation: -110 pixcir_ts 1-005c: Failed to stop dpm_run_callback(): pixcir_i2c_ts_resume+0x0/0x98 [pixcir_i2c_ts] returns -110 PM: Device 1-005c failed to resume: error -110 And at least am437x based devices with pixcir_ts will fail to resume to a touchscreen that is configured as the wakeup-source in device tree for these devices. This is because pixcir_ts tries to reconfigure it's registers for noirq suspend which fails. This also leaves i2c-omap in enabled state for suspend. Let's fix the pixcir_ts issue and make sure i2c-omap is suspended by adding SET_NOIRQ_SYSTEM_SLEEP_PM_OPS. Let's also get rid of some ifdefs while at it and replace them with __maybe_unused as SET_RUNTIME_PM_OPS and SET_NOIRQ_SYSTEM_SLEEP_PM_OPS already deal with the various PM Kconfig options. Reported-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-01PCI: Move Rohm Vendor ID to generic listAndy Shevchenko
Move the Rohm Vendor ID to pci_ids.h instead of defining it in several drivers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2019-01-23i2c: aspeed: Remove hard-coded bus timeout value settingJae Hyun Yoo
This commit removes hard-coded bus timeout value setting so that it can be set by i2c-core-base. Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-23i2c: sh_mobile: update copyright and commentsWolfram Sang
Update copyright years and add Renesas to it. Add/update comments to make driver easier to understand. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-23i2c: sh_mobile: refactor rx isrWolfram Sang
Remove the do_while loop which was just there to have an easy exit with "break;" and replace it with if-else-blocks which should make the state machine clearer. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-23i2c: sh_mobile: replace break; with if-blockWolfram Sang
In preparation to remove the do-while-loop. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-23i2c: sh_mobile: remove is_first_byte functionWolfram Sang
All state machines deal with pd->pos values. This helper function is an exception and makes it only more confusing. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-23i2c: sh_mobile: drop 'data' argument from i2c_op functionWolfram Sang
It is clear that we always send the address in TX_FIRST and data in TX. No need to pass it from the caller. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-23i2c: sh_mobile: remove get_data functionWolfram Sang
It makes the code much easier comprehensible to explicitly code that the first byte will be client address and all the following bytes are the actual data. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-23i2c: sh_mobile: simplify sending address for RXWolfram Sang
pd->pos won't be smaller than -1, so we can simplify the logic. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-22i2c: rcar: Fix clients using i2c from suspend callbackGeert Uytterhoeven
When doing s2idle/s2ram on Salvator-X(S): WARNING: CPU: 2 PID: 971 at drivers/i2c/i2c-core-base.c:1869 __i2c_transfer+0x608/0x910 [...] Call trace: __i2c_transfer+0x608/0x910 i2c_smbus_xfer_emulated+0x158/0x5b0 __i2c_smbus_xfer+0x17c/0x818 i2c_smbus_xfer+0x64/0x98 i2c_smbus_read_byte_data+0x40/0x70 cs2000_bset.isra.1+0x2c/0x68 __cs2000_set_rate.constprop.7+0x80/0x148 cs2000_resume+0x18/0x20 dpm_run_callback+0x74/0x330 device_resume_early+0xd4/0x120 dpm_resume_early+0x158/0x4f8 suspend_devices_and_enter+0x36c/0xd98 [...] On second resume, the sound driver fails with: cs2000-cp 2-004f: pll lock failed rcar_sound ec500000.sound: can't use clk 1 As the CS2000 clock driver needs to send I2C messages during suspend, the I2C controller driver should be suspended later, and resumed earlier. Fix this by using the noirq sleep ops instead of the normal sleep ops, which are called after the late sleep ops, as used by the CS2000 clock driver. Fixes: 18569fa89a4db9ed ("i2c: rcar: add suspend/resume support") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-22i2c: imx: Fix inconsistent IS_ERR and PTR_ERR in i2c_imx_dma_request()YueHaibing
Change the call to PTR_ERR to access the value just tested by IS_ERR. Fixes: 5b3a23a3cc94 ("i2c: imx: notify about real errors on dma i2c_imx_dma_request") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Esben Haabendal <esben@haabendal.dk> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-15i2c: imx: improve the error handling in i2c_imx_dma_request()Oleksij Rempel
Improve the error handling in i2c_imx_dma_request() and let it return an error indication that the caller then can handle accordingly. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-15i2c: imx: notify about real errors on dma i2c_imx_dma_requestOleksij Rempel
At least on i.MX5x, the DMA events for I2C and SDHC use the same channel and there can only be a single user. So in this case there should be no message emitted that looks like an error if the I2C device doesn't have an assigned DMA channel. In contrast real problems that were only emitted at debug level before should be described at a higher level to be better visible and so understandable. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-11i2c: tegra: Fix Maximum transfer sizeSowjanya Komatineni
Tegra194 supports maximum 64K Bytes transfer per packet. Tegra186 and prior supports maximum 4K Bytes transfer per packet. This patch fixes this payload difference between Tegra194 and prior Tegra chipsets using separate i2c_adapter_quirks. Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-11i2c: dev: prevent adapter retries and timeout being set as minus valueYi Zeng
If adapter->retries is set to a minus value from user space via ioctl, it will make __i2c_transfer and __i2c_smbus_xfer skip the calling to adapter->algo->master_xfer and adapter->algo->smbus_xfer that is registered by the underlying bus drivers, and return value 0 to all the callers. The bus driver will never be accessed anymore by all users, besides, the users may still get successful return value without any error or information log print out. If adapter->timeout is set to minus value from user space via ioctl, it will make the retrying loop in __i2c_transfer and __i2c_smbus_xfer always break after the the first try, due to the time_after always returns true. Signed-off-by: Yi Zeng <yizeng@asrmicro.com> [wsa: minor grammar updates to commit message] Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Cc: stable@kernel.org
2019-01-08i2c: rcar: add suspend/resume supportWolfram Sang
Because the adapter will be set up before every transaction anyhow, we just need to mark it as suspended to the I2C core. Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-08i2c: s3c2410: use core helper to mark adapter suspendedWolfram Sang
Rejecting transfers should be handled by the core. Also, this will ensure proper locking which was forgotten in this open coded version. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-08i2c: exynos5: use core helper to mark adapter suspendedWolfram Sang
Rejecting transfers should be handled by the core. Also, this will ensure proper locking which was forgotten in this open coded version. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-08i2c: sprd: use core helper to mark adapter suspendedWolfram Sang
Rejecting transfers should be handled by the core. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-08i2c: sprd: don't use pdev as variable name for struct device *Wolfram Sang
The pointer to a device is usually named 'dev'. These 'pdev' here look much like copy&paste errors. Fix them to avoid confusion. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-08i2c: zx2967: use core helper to mark adapter suspendedWolfram Sang
Rejecting transfers should be handled by the core. Also, this will ensure proper locking which was forgotten in this open coded version and make sure resume mark is set after enabling clocks (not before). Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-08i2c: brcmstb: use core helper to mark adapter suspendedWolfram Sang
Rejecting transfers should be handled by the core. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Kamal Dasu <kdasu.kdev@gmail.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-08i2c: synquacer: remove unused is_suspended flagWolfram Sang
This flag was defined and checked but never set a value. Remove it. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-08i2c: add suspended flag and accessors for i2c adaptersWolfram Sang
A few drivers open code the handling of suspended adapters. It could be handled by the core, though, to ensure generic handling. This patch adds the flag and accessor functions. The usage of these helpers is optional, though. See the kerneldoc in this patch. Using the new flag, we now reject further transfers if the adapter is already marked suspended. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-05Merge branch 'i2c/for-5.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "I2C has only driver updates for you this time. Mostly new IDs/DT compatibles, also SPDX conversions, small cleanups. STM32F7 got FastMode+ and PM support, Axxia some reliabilty improvements" * 'i2c/for-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (26 commits) i2c: Add Actions Semiconductor Owl family S700 I2C support dt-bindings: i2c: Add S700 support for Actions Semi Soc's i2c: ismt: Add support for Intel Cedar Fork i2c: tegra: Switch to SPDX identifier i2c: tegra: Add missing kerneldoc for some fields i2c: tegra: Cleanup kerneldoc comments i2c: axxia: support sequence command mode dt-bindings: i2c: rcar: Add r8a774c0 support dt-bindings: i2c: sh_mobile: Add r8a774c0 support i2c: sh_mobile: Add support for r8a774c0 (RZ/G2E) i2c: i2c-cros-ec-tunnel: Switch to SPDX identifier. i2c: powermac: Use of_node_name_eq for node name comparisons i2c-axxia: check for error conditions first i2c-axxia: dedicated function to set client addr dt-bindings: i2c: Use correct vendor prefix for Atmel i2c: tegra: replace spin_lock_irqsave with spin_lock in ISR eeprom: at24: add support for 24c2048 dt-bindings: eeprom: at24: add "atmel,24c2048" compatible string i2c: i2c-stm32f7: add PM Runtime support i2c: sh_mobile: add support for r8a77990 (R-Car E3) ...
2019-01-03i2c: Add Actions Semiconductor Owl family S700 I2C supportParthiban Nallathambi
Add S700 to the list of devices supported by Owl I2C driver. Add Actions Semiconductor Owl family S700 I2C driver. Signed-off-by: Parthiban Nallathambi <pn@denx.de> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-01-03i2c: ismt: Add support for Intel Cedar ForkJarkko Nikula
Add PCI ID for the Intel Cedar Fork iSMT SMBus controller. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> [wsa: kept sorting] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-12-29Merge tag 'kconfig-v4.21' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kconfig updates from Masahiro Yamada: - support -y option for merge_config.sh to avoid downgrading =y to =m - remove S_OTHER symbol type, and touch include/config/*.h files correctly - fix file name and line number in lexer warnings - fix memory leak when EOF is encountered in quotation - resolve all shift/reduce conflicts of the parser - warn no new line at end of file - make 'source' statement more strict to take only string literal - rewrite the lexer and remove the keyword lookup table - convert to SPDX License Identifier - compile C files independently instead of including them from zconf.y - fix various warnings of gconfig - misc cleanups * tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits) kconfig: surround dbg_sym_flags with #ifdef DEBUG to fix gconf warning kconfig: split images.c out of qconf.cc/gconf.c to fix gconf warnings kconfig: add static qualifiers to fix gconf warnings kconfig: split the lexer out of zconf.y kconfig: split some C files out of zconf.y kconfig: convert to SPDX License Identifier kconfig: remove keyword lookup table entirely kconfig: update current_pos in the second lexer kconfig: switch to ASSIGN_VAL state in the second lexer kconfig: stop associating kconf_id with yylval kconfig: refactor end token rules kconfig: stop supporting '.' and '/' in unquoted words treewide: surround Kconfig file paths with double quotes microblaze: surround string default in Kconfig with double quotes kconfig: use T_WORD instead of T_VARIABLE for variables kconfig: use specific tokens instead of T_ASSIGN for assignments kconfig: refactor scanning and parsing "option" properties kconfig: use distinct tokens for type and default properties kconfig: remove redundant token defines kconfig: rename depends_list to comment_option_list ...
2018-12-25Merge tag 'platform-drivers-x86-v4.21-1' of ↵Linus Torvalds
git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform driver updates from Andy Shevchenko: - The USB Power Delivery discrete components now can be enumerated by i2c-multi-instantiate driver via several resources under single ACPI device node (ACPI ID is INT3515). - Touchscreen support is added for the Mediacom Flexbook Edge 11. - Mellanox driver got fixed due to updates in their firmware. - The power management stub driver for AtomISP v2 is fixed in order to support Intel Baytrail SoCs where same quirk is needed for S0ix to work. - Special key handling has been fixed for Favorites hotkey on Thinkpad, and Screen LOCK on ASUS. - Ideapad Yoga 2 13 has no HW rfkill switch, thus, driver has been updated to support this. - Few cleanups related to debugfs have been made in Intel IPS and Intel PMC drivers. Besides that Intel PMC has been extended to show more detailed information about Latency Tolerance * tag 'platform-drivers-x86-v4.21-1' of git://git.infradead.org/linux-platform-drivers-x86: (41 commits) platform/x86: mlx-platform: Convert to use SPDX identifier Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces platform/x86: mlx-platform: Allow mlxreg-io driver activation for new systems platform/x86: mlx-platform: Fix LED configuration platform/x86: mlx-platform: Fix tachometer registers platform/x86: mlx-platform: Rename new systems product names platform/x86: mlx-platform: Add definitions for new registers platform/x86: intel_telemetry: convert to DEFINE_SHOW_ATTRIBUTE platform/x86: intel_pmc_core: convert to DEFINE_SHOW_ATTRIBUTE platform/x86: thinkpad_acpi: Cleanup quirks macros platform/x86: touchscreen_dmi: Add info for the Mediacom Flexbook Edge 11 platform/x86: Fix config space access for intel_atomisp2_pm platform/x86: Add the VLV ISP PCI ID to atomisp2_pm platform/x86: intel_ips: Convert to use DEFINE_SHOW_ATTRIBUTE macro platform/x86: intel_ips: Remove never happen condition platform/x86: intel_ips: NULL check before some freeing functions is not needed platform/x86: intel_ips: remove unnecessary checks in ips_debugfs_init iio: inv_mpu6050: Use i2c_acpi_get_i2c_resource() helper ACPI / scan: Create platform device for INT3515 ACPI nodes platform/x86: i2c-multi-instantiate: Allow to have same slaves ...
2018-12-22treewide: surround Kconfig file paths with double quotesMasahiro Yamada
The Kconfig lexer supports special characters such as '.' and '/' in the parameter context. In my understanding, the reason is just to support bare file paths in the source statement. I do not see a good reason to complicate Kconfig for the room of ambiguity. The majority of code already surrounds file paths with double quotes, and it makes sense since file paths are constant string literals. Make it treewide consistent now. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Ingo Molnar <mingo@kernel.org>
2018-12-17i2c: tegra: Switch to SPDX identifierThierry Reding
Adopt the SPDX license identifier headers to ease license compliance management. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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