kernel/linux.git/drivers/mfd/sm501.c, branch linux-5.3.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

mfd: sm501: Use struct_size() in devm_kzalloc()

2019-02-07T10:43:09+00:00

One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; instance = devm_kzalloc(dev, sizeof(struct foo) + count * sizeof(struct boo), GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL); This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva Signed-off-by: Lee Jones

mfd: sm501: Fix potential NULL pointer dereference

2019-02-07T10:42:47+00:00

There is a potential NULL pointer dereference in case devm_kzalloc() fails and returns NULL. Fix this by adding a NULL check on *lookup* This bug was detected with the help of Coccinelle. Fixes: b2e63555592f ("i2c: gpio: Convert to use descriptors") Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva Signed-off-by: Lee Jones

mfd: sm501: Set coherent_dma_mask when creating subdevices

2018-08-16T09:13:57+00:00

Instantiating the sm501 OHCI subdevice results in a kernel warning. sm501-usb sm501-usb: SM501 OHCI sm501-usb sm501-usb: new USB bus registered, assigned bus number 1 WARNING: CPU: 0 PID: 1 at ./include/linux/dma-mapping.h:516 ohci_init+0x194/0x2d8 Modules linked in: CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.18.0-rc7-00178-g0b5b1f9a78b5 #1 PC is at ohci_init+0x194/0x2d8 PR is at ohci_init+0x168/0x2d8 PC : 8c27844c SP : 8f81dd94 SR : 40008001 TEA : 29613060 R0 : 00000000 R1 : 00000000 R2 : 00000000 R3 : 00000202 R4 : 8fa98b88 R5 : 8c277e68 R6 : 00000000 R7 : 00000000 R8 : 8f965814 R9 : 8c388100 R10 : 8fa98800 R11 : 8fa98928 R12 : 8c48302c R13 : 8fa98920 R14 : 8c48302c MACH: 00000096 MACL: 0000017c GBR : 00000000 PR : 8c278420 Call trace: [<(ptrval)>] usb_add_hcd+0x1e8/0x6ec [<(ptrval)>] _dev_info+0x0/0x54 [<(ptrval)>] arch_local_save_flags+0x0/0x8 [<(ptrval)>] arch_local_irq_restore+0x0/0x24 [<(ptrval)>] ohci_hcd_sm501_drv_probe+0x114/0x2d8 ... Initialize coherent_dma_mask when creating SM501 subdevices to fix the problem. Fixes: b6d6454fdb66f ("mfd: SM501 core driver") Signed-off-by: Guenter Roeck Signed-off-by: Lee Jones

Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2018-06-14T07:21:46+00:00

Pull i2c updates from Wolfram Sang: - mainly feature additions to drivers (stm32f7, qup, xlp9xx, mlxcpld, ...) - conversion to use the i2c_8bit_addr_from_msg macro consistently - move includes to platform_data - core updates to allow the (still in review) I3C subsystem to connect - and the regular share of smaller driver updates * 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (68 commits) i2c: qup: fix building without CONFIG_ACPI i2c: tegra: Remove suspend-resume i2c: imx-lpi2c: Switch to SPDX identifier i2c: mxs: Switch to SPDX identifier i2c: busses: make use of i2c_8bit_addr_from_msg i2c: algos: make use of i2c_8bit_addr_from_msg i2c: rcar: document R8A77980 bindings i2c: qup: Add command-line parameter to override SCL frequency i2c: qup: Correct duty cycle for FM and FM+ i2c: qup: Add support for Fast Mode Plus i2c: qup: add probe path for Centriq ACPI devices i2c: robotfuzz-osif: drop pointless test i2c: robotfuzz-osif: remove pointless local variable i2c: rk3x: Don't print visible virtual mapping MMIO address i2c: opal: don't check number of messages in the driver i2c: ibm_iic: don't check number of messages in the driver i2c: imx: Switch to SPDX identifier i2c: mux: pca954x: merge calls to of_match_device and of_device_get_match_data i2c: mux: demux-pinctrl: use proper parent device for demux adapter i2c: mux: improve error message for failed symlink ...

i2c: gpio: move header to platform_data

2018-05-17T14:27:09+00:00

This header only contains platform_data. Move it to the proper directory. Signed-off-by: Wolfram Sang Acked-by: Tony Lindgren Acked-by: Lee Jones Acked-by: Robert Jarzmik Acked-by: Mauro Carvalho Chehab Acked-by: James Hogan Acked-by: Greg Ungerer

mfd: sm501: Adjust 12 checks for null pointers

2018-05-16T08:21:48+00:00

The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written … Thus fix the affected source code places. Signed-off-by: Markus Elfring Signed-off-by: Lee Jones

mfd: sm501: Improve a size determination in two functions

2018-05-16T08:21:48+00:00

Replace the specification of data structures by pointer dereferences as the parameter for the operator "sizeof" to make the corresponding size determination a bit safer according to the Linux coding style convention. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Lee Jones

mfd: sm501: Delete error message for a failed memory allocation in two places

2018-05-16T08:21:48+00:00

Omit an extra message for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Lee Jones

i2c: gpio: Augment all boardfiles to use open drain

2017-10-30T07:42:43+00:00

We now handle the open drain mode internally in the I2C GPIO driver, but we will get warnings from the gpiolib that we override the default mode of the line so it becomes open drain. We can fix all in-kernel users by simply passing the right flag along in the descriptor table, and we already touched all of these files in the series so let's just tidy it up. Cc: Steven Miao Cc: Ralf Baechle Acked-by: Olof Johansson Acked-by: Lee Jones Acked-by: Robert Jarzmik Acked-by: Ralf Baechle Acked-by: Wu, Aaron Acked-by: Arnd Bergmann Tested-by: Geert Uytterhoeven Signed-off-by: Linus Walleij