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* nvmem: add missing of_node_put() in of_nvmem_cell_get()Masahiro Yamada2017-09-181-0/+1
| | | | | | | | | of_get_next_parent() increments the refcount of the returned node. It should be put when done. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: return EFBIG on out-of-range writeGuy Shapiro2017-09-181-1/+1
| | | | | | | | | | | | | | | | When writing data that exceeds the nvmem size to a nvmem sysfs file using the sh redirection operator >, the shell hangs, trying to write the out-of-range bytes endlessly. Fix the problem by returning EFBIG described in man 2 write. Similar change was done for binary sysfs files on commit 0936896056365349afa867c16e9f9100a6707cbf Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com> Cc: linux-api@vger.kernel.org Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: remove unneeded NULL checkDan Carpenter2017-08-281-1/+1
| | | | | | | | | | | "p" is the list iterator so it can't be NULL. Static checkers complain about this unnecessary check because we dereference the list iterator to get the next item in the list so we'd be in trouble if it really was NULL. I have removed the check. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: Add nvmem_cell_read_u32Leonard Crestez2017-08-281-0/+37
| | | | | | | | | | This function does a quick and easy read of an u32 value without any kind of resource management code on the consumer side. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: Convert to using %pOF instead of full_nameRob Herring2017-08-281-2/+2
| | | | | | | | | | | Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: lpc18xx-eeprom: explicitly request exclusive reset controlPhilipp Zabel2017-08-281-1/+1
| | | | | | | | | | | | | | | | | Commit a53e35db70d1 ("reset: Ensure drivers are explicit when requesting reset lines") started to transition the reset control request API calls to explicitly state whether the driver needs exclusive or shared reset control behavior. Convert all drivers requesting exclusive resets to the explicit API call so the temporary transition helpers can be removed. No functional changes. Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Joachim Eastwood <manabian@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuseFrank Wang2017-07-171-1/+1
| | | | | | | | | | | | | As the comments from Heiko Stuebner <heiko@sntech.de> that compatible should not contain any placeholders, this patch fix it for rk3228 SoC. Note that this is a fix for v4.13, due to fixing the current non-standard binding name that should not become part of an official kernel release. Signed-off-by: Frank Wang <frank.wang@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: rockchip-efuse: add support for rk322x-efuseFinley Xiao2017-06-091-0/+4
| | | | | | | | | This adds the necessary data for handling eFuse on the rk322x. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: add locking to nvmem_find_cellHeiner Kallweit2017-06-091-1/+7
| | | | | | | | | | Adding entries to nvmem_cells and deleting entries from it is protected by nvmem_cells_mutex. Therefore this mutex should also protect iterating over the list. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: Call put_device() in nvmem_unregister()Andrey Smirnov2017-06-091-0/+1
| | | | | | | | | | | | Call put_device() in nvmem_unregister() to make sure nvmem_release gets called freeing up allocated resources. Cc: cphealy@gmail.com Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: fix leaks on registration errorsJohan Hovold2017-06-091-5/+8
| | | | | | | | | | | | | | | | | | | | | | Make sure to deregister and release the nvmem device and underlying memory on registration errors. Note that the private data must be freed using put_device() once the struct device has been initialised. Also note that there's a related reference leak in the deregistration function as reported by Mika Westerberg which is being fixed separately. Fixes: b6c217ab9be6 ("nvmem: Add backwards compatibility support for older EEPROM drivers.") Fixes: eace75cfdcf7 ("nvmem: Add a simple NVMEM framework for nvmem providers") Cc: stable <stable@vger.kernel.org> # 4.3 Cc: Andrew Lunn <andrew@lunn.ch> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Johan Hovold <johan@kernel.org> Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: correct Broadcom OTP controller driver writesOza Pawandeep2017-06-091-2/+2
| | | | | | | | | | | | - use data write offset to write otp data instead of read offset - use OTP program command 0x8 to write otp with ECC rather than just command 0xA without ECC Fixes: 9d59c6e8ae27 ("nvmem: Add the Broadcom OTP controller driver") Signed-off-by: Oza Pawandeep <oza.oza@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'armsoc-drivers' of ↵Linus Torvalds2017-05-091-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "Driver updates for ARM SoCs: Reset subsystem, merged through arm-soc by tradition: - Make bool drivers explicitly non-modular - New support for i.MX7 and Arria10 reset controllers PATA driver for Palmchip BK371 (acked by Tejun) Power domain drivers for i.MX (GPC, GPCv2) - Moved out of mach-imx for GPC - Bunch of tweaks, fixes, etc PMC support for Tegra186 SoC detection support for Renesas RZ/G1H and RZ/G1N Move Tegra flow controller driver from mach directory to drivers/soc - (Power management / CPU power driver) Misc smaller tweaks for other platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits) soc: pm-domain: Fix the mangled urls soc: renesas: rcar-sysc: Add support for R-Car H3 ES2.0 soc: renesas: rcar-sysc: Add support for fixing up power area tables soc: renesas: Register SoC device early soc: imx: gpc: add workaround for i.MX6QP to the GPC PD driver dt-bindings: imx-gpc: add i.MX6 QuadPlus compatible soc: imx: gpc: add defines for domain index soc: imx: Add GPCv2 power gating driver dt-bindings: Add GPCv2 power gating driver ARM/clk: move the ICST library to drivers/clk ARM: plat-versatile: remove stale clock header ARM: keystone: Drop PM domain support for k2g soc: ti: Add ti_sci_pm_domains driver dt-bindings: Add TI SCI PM Domains PM / Domains: Do not check if simple providers have phandle cells PM / Domains: Add generic data pointer to genpd data struct soc/tegra: Add initial flowctrl support for Tegra132/210 soc/tegra: flowctrl: Add basic platform driver soc/tegra: Move Tegra flowctrl driver ARM: tegra: Remove unnecessary inclusion of flowctrl header ...
| * firmware: meson-sm: Check for buffer output sizeCarlo Caione2017-03-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After the data is read by the secure monitor driver it is being copied in the output buffer checking only the size of the bounce buffer but not the size of the output buffer. Fix this in the secure monitor driver slightly changing the API. Fix also the efuse driver that it is the only driver using this API to not break bisectability. Signed-off-by: Carlo Caione <carlo@endlessm.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> # for nvmem Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
* | nvmem: imx-ocotp: add write supportRichard Leitner2017-04-081-2/+208
| | | | | | | | | | | | | | | | | | | | Implement write routine for OCOTP controller found in i.MX6 SoC's. Furthermore add locking to the read function to prevent race conditions. The write routine code is based on the fsl_otp driver from Freescale. Signed-off-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: clear error bit after reading locked valuesRichard Leitner2017-04-081-3/+38
| | | | | | | | | | | | | | | | | | | | | | | | When reading a "read locked" value from the OCOTP controller on i.MX6 SoC's an error bit is set. This bit has to be cleared by software before any new write, read or reload access can be issued. Therefore clear it after we detect such an "locked read". Signed-off-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: octop: Add i.MX7D supportPeng Fan2017-04-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Add i.MX7D support. There is 16 banks, each bank 4 words. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: Add driver for the i.MX IIMMichael Grzeschik2017-04-083-0/+186
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a readonly nvmem driver for the i.MX IC Identification Module (IIM). The IIM is found on the older i.MX SoCs like the i.MX25, i.MX27, i.MX31, i.MX35, i.MX51 and the i.MX53. The IIM can control up to 8 fuse banks with 256 bit each. Not all of the banks are equipped on the different SoCs. The actual number of fuses differ from 512 on the i.MX27 and 1152 on the i.MX53. The fuses are one time writable, but writing is currently not supported in the driver. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: fix usage of "dev" pointersRichard Leitner2017-04-081-1/+3
| | | | | | | | | | | | | | | | | | | | Assign the correct dev pointer to struct ocotp_priv during probe. This is needed to display dev_* messages correctly. Furthermore harmonize the usage of dev (instead of &pdev->dev) in the probe function. Signed-off-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi-sid: add support for H3's SID controllerIcenowy Zheng2017-04-081-0/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The H3 SoC have a bigger SID controller, which has its direct read address at 0x200 position in the SID block, not 0x0. Also, H3 SID controller has some silicon bug that makes the direct read value wrong at cold boot, add code to workaround the bug. (This bug has already been fixed on A64 and later SoCs) Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi-sid: read NVMEM size from device compatibleIcenowy Zheng2017-04-081-4/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes the SID device have more memory address space than the real NVMEM size (for the registers used to read/write the SID). Fetch the NVMEM size from device compatible, rather than the memory address space's length, in order to prepare for adding some registers-based read support. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: core: Allow allocating several anonymous nvmem devicesAban Bedel2017-04-081-1/+2
|/ | | | | | | | | | | | | | | | Currently the nvmem core expect the config to provide a name and ID that are then used to create the device name. When no device name is given 'nvmem' is used. However if there is several such anonymous devices they all get named 'nvmem0', which doesn't work. To fix this problem use the ID from the config only when the config also provides a name. When no name is provided take the uinque ID of the nvmem device instead. Signed-off-by: Aban Bedel <albeu@free.fr> Reviewed-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: Allow getting nvmem cell with a NULL cell idVivek Gautam2017-01-251-3/+8
| | | | | | | | | | | | | | The nvmem cell with a NULL cell name/id should be the one with no accompanying 'nvmem-cell-names' property, and thus will be the cell at index 0 in the device tree. So, we default to index 0 and update the cell index only when nvmem cell name id exists. Suggested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: Correct a bunch of function documentationsVivek Gautam2017-01-251-14/+16
| | | | | | | | | Correct the documentation for arguments to a number of functions. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: core: Allow ignoring length when reading a cellVivek Gautam2017-01-251-2/+4
| | | | | | | | | | | | nvmem_cell_read() API fills in the argument 'len' with the number of bytes read from the cell. Many users don't care about this length value. So allow users to pass a NULL pointer to this len field. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: octop: Add support for imx6ulBai Ping2017-01-251-0/+1
| | | | | | | | | i.MX6UL is an new SOC of i.MX6 family. Enable ocotp driver support for this SOC. Signed-off-by: Bai Ping <ping.bai@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: fix nvmem_cell_read() return type docBrian Norris2017-01-041-2/+2
| | | | | | | | | | | nvmem_cell_read() returns void *, not char *. This is a cleanup that got left out of commit a6c50912508d ("nvmem: Declare nvmem_cell_read() consistently"). Signed-off-by: Brian Norris <briannorris@chromium.org> Fixes: a6c50912508d ("nvmem: Declare nvmem_cell_read() consistently") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: imx-ocotp: Fix wrong register sizeDaniel Schultz2017-01-041-1/+1
| | | | | | | | | | | | | | | | | | | | | All i.MX6 SoCs have an OCOTP Controller with 4kbit fuses. The i.MX6SL is an exception and has only 2kbit fuses. In the TRM for the i.MX6DQ (IMX6QDRM - Rev 2, 06/2014) the fuses size is described in chapter 46.1.1 with: "32-bit word restricted program and read to 4Kbits of eFuse OTP(512x8)." In the TRM for the i.MX6SL (IMX6SLRM - Rev 2, 06/2015) the fuses size is described in chapter 34.1.1 with: "32-bit word restricted program and read to 2 kbit of eFuse OTP(128x8)." Since the Freescale Linux kernel OCOTP driver works with a fuses size of 2 kbit for the i.MX6SL, it looks like the TRM is wrong and the formula to calculate the correct fuses size has to be 256x8. Signed-off-by: Daniel Schultz <d.schultz@phytec.de> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: qfprom: Allow single byte accesses for read/writeVivek Gautam2017-01-041-7/+7
| | | | | | | | | | | | | The nvmem core driver supports to read and write single byte. So, allow qfprom to support this feature. This change helps in extracting a required value based on bit-offset and number of bits for the required value in the nvmem cell. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: Add the Broadcom OTP controller driverJonathan Richardson2016-11-103-0/+349
| | | | | | | | | | | | | | Add support for 32 and 64-bit versions of Broadcom's On-Chip OTP controller. These controllers are used on SoC's such as Cygnus and Stingray. Reviewed-by: Ray Jui <ray.jui@broadcom.com> Tested-by: Jonathan Richardson <jonathan.richardson@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Oza Pawandeep <oza@broadcom.com> Signed-off-by: Jonathan Richardson <jonathan.richardson@broadcom.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: add NXP LPC18xx OTP driverJoachim Eastwood2016-11-103-0/+136
| | | | | | | | | | | | | | | Add simple read only driver for the internal OTP (One Time Programmable) memory found on all NXP LPC18xx and LPC43xx devices. The OTP memory is split into 4 banks each with 4 32-bits word. Some of the banks contain predefined data while others are for general purpose and user programmable via the OTP API in ROM. Note that writing to the OTP memory is not yet supported. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Tested-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'armsoc-drivers' of ↵Linus Torvalds2016-10-083-0/+105
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs, including a couple of newly added drivers: - The Qualcomm external bus interface 2 (EBI2), used in some of their mobile phone chips for connecting flash memory, LCD displays or other peripherals - Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for the EFUSE based on that firmware interface. - Perf support for the AppliedMicro X-Gene performance monitor unit - Reset driver for STMicroelectronics STM32 - Reset driver for SocioNext UniPhier SoCs Aside from these, there are minor updates to SoC-specific bus, clocksource, firmware, pinctrl, reset, rtc and pmic drivers" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits) bus: qcom-ebi2: depend on HAS_IOMEM pinctrl: mvebu: orion5x: Generalise mv88f5181l support for 88f5181 clk: mvebu: Add clk support for the orion5x SoC mv88f5181 dt-bindings: EXYNOS: Add Exynos5433 PMU compatible clocksource: exynos_mct: Add the support for ARM64 perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver Documentation: Add documentation for APM X-Gene SoC PMU DTS binding MAINTAINERS: Add entry for APM X-Gene SoC PMU driver bus: qcom: add EBI2 driver bus: qcom: add EBI2 device tree bindings rtc: rtc-pm8xxx: Add support for pm8018 rtc nvmem: amlogic: Add Amlogic Meson EFUSE driver firmware: Amlogic: Add secure monitor driver soc: qcom: smd: Reset rx tail rather than tx memory: atmel-sdramc: fix a possible NULL dereference reset: hi6220: allow to compile test driver on other architectures reset: zynq: add driver Kconfig option reset: sunxi: add driver Kconfig option reset: stm32: add driver Kconfig option reset: socfpga: add driver Kconfig option ...
| * nvmem: amlogic: Add Amlogic Meson EFUSE driverCarlo Caione2016-09-013-0/+105
| | | | | | | | | | | | | | | | | | Add Amlogic EFUSE driver to access hardware data like ethernet address, serial number or IDs. Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Carlo Caione <carlo@endlessm.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
* | nvmem: rockchip-efuse: add rk3399-efuse supportFinley Xiao2016-09-021-19/+114
|/ | | | | | | | | | | | | | | 1) the efuse timing of rk3399 is different from earlier SoCs. 2) rk3399-efuse is organized as 32bits by 32 one-time programmable electrical fuses, the efuse of earlier SoCs is organized as 32bits by 8 one-time programmable electrical fuses with random access interface. This patch adds a new read function for rk3399-efuse. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: imx-ocotp: Fix assignment warning.Srinivas Kandagatla2016-06-251-1/+1
| | | | | | | | | | | | This patch fixes below error if the driver is compiled with 64 bit machine configuration. "drivers/nvmem/imx-ocotp.c:102:14: warning: assignment makes integer from pointer without a cast" Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: imx-ocotp: add COMPILE_TEST for proper test coverageSrinivas Kandagatla2016-06-251-1/+2
| | | | | | | | | | | This patch add COMPILE_TEST to imx-ocotp driver so that it can be compile tested on other platforms with zero day testing. Also adds HAS_IOMEM dependancy as the users of devm_ioremap_resource() which are compile-testable should depend on HAS_IOMEM. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: imx-ocotp: handling clockPeng Fan2016-06-251-1/+14
| | | | | | | | | | | | | | | | | Before access ocotp nvmem area, the clock should be enabled. Or, `hexdump nvmem` will hang the system. So, use such flow: " 1. clock_enable_prepare 2. read nvmem ocotp area 3. clock_disable_unprepare " Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: mxs-ocotp: remove nvmem regmap dependencySrinivas Kandagatla2016-06-251-61/+22
| | | | | | | | | | | Regmap raw accessors are bus specific implementations, using regmap raw apis in nvmem breaks nvmem providers based on regmap mmio. This patch moves to nvmem support in the driver to use callback instead of regmap, which is what the nvmem core supports now. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* nvmem: mtk-efuse: remove nvmem regmap dependencySrinivas Kandagatla2016-06-252-16/+32
| | | | | | | | | | Regmap raw accessors are bus specific implementations, using regmap raw apis in nvmem breaks nvmem providers based on regmap mmio. This patch moves to nvmem support in the driver to use callback instead of regmap, which is what the nvmem core supports now. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* remove lots of IS_ERR_VALUE abusesArnd Bergmann2016-05-281-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most users of IS_ERR_VALUE() in the kernel are wrong, as they pass an 'int' into a function that takes an 'unsigned long' argument. This happens to work because the type is sign-extended on 64-bit architectures before it gets converted into an unsigned type. However, anything that passes an 'unsigned short' or 'unsigned int' argument into IS_ERR_VALUE() is guaranteed to be broken, as are 8-bit integers and types that are wider than 'unsigned long'. Andrzej Hajda has already fixed a lot of the worst abusers that were causing actual bugs, but it would be nice to prevent any users that are not passing 'unsigned long' arguments. This patch changes all users of IS_ERR_VALUE() that I could find on 32-bit ARM randconfig builds and x86 allmodconfig. For the moment, this doesn't change the definition of IS_ERR_VALUE() because there are probably still architecture specific users elsewhere. Almost all the warnings I got are for files that are better off using 'if (err)' or 'if (err < 0)'. The only legitimate user I could find that we get a warning for is the (32-bit only) freescale fman driver, so I did not remove the IS_ERR_VALUE() there but changed the type to 'unsigned long'. For 9pfs, I just worked around one user whose calling conventions are so obscure that I did not dare change the behavior. I was using this definition for testing: #define IS_ERR_VALUE(x) ((unsigned long*)NULL == (typeof (x)*)NULL && \ unlikely((unsigned long long)(x) >= (unsigned long long)(typeof(x))-MAX_ERRNO)) which ends up making all 16-bit or wider types work correctly with the most plausible interpretation of what IS_ERR_VALUE() was supposed to return according to its users, but also causes a compile-time warning for any users that do not pass an 'unsigned long' argument. I suggested this approach earlier this year, but back then we ended up deciding to just fix the users that are obviously broken. After the initial warning that caused me to get involved in the discussion (fs/gfs2/dir.c) showed up again in the mainline kernel, Linus asked me to send the whole thing again. [ Updated the 9p parts as per Al Viro - Linus ] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.org/lkml/2016/1/7/363 Link: https://lkml.org/lkml/2016/5/27/486 Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> # For nvmem part Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge 4.6-rc7 into char-misc-testingGreg Kroah-Hartman2016-05-091-2/+2
|\ | | | | | | | | | | This resolves a merge issue with drivers/hv/ring_buffer.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: mxs-ocotp: fix buffer overflow in readStanislav Meduna2016-05-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the issue where the mxs_ocotp_read is reading the ocotp in reg_size steps but decrements the remaining size by 1. The number of iterations is thus four times higher, overwriting the area behind the output buffer. Fixes: c01e9a11ab6f ("nvmem: add driver for ocotp in i.MX23 and i.MX28") Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Stanislav Meduna <stano@meduna.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: lpc18xx-eeprom: remove nvmem regmap dependencySrinivas Kandagatla2016-05-011-68/+26
| | | | | | | | | | | | | | | | This patch moves to nvmem support in the driver to use callback instead of regmap. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: remove nvmem regmap dependencySrinivas Kandagatla2016-05-011-44/+11
| | | | | | | | | | | | | | | | This patch moves to nvmem support in the driver to use callback instead of regmap. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: rockchip-efuse: remove nvmem regmap dependencySrinivas Kandagatla2016-05-011-40/+9
| | | | | | | | | | | | | | | | This patch moves to nvmem support in the driver to use callback instead of regmap. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi-sid: remove nvmem regmap dependencySrinivas Kandagatla2016-05-012-46/+9
| | | | | | | | | | | | | | | | This patch moves to nvmem support in the driver to use callback instead of regmap. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: vif610-ocotp: remove nvmem regmap dependencySrinivas Kandagatla2016-05-011-34/+10
| | | | | | | | | | | | | | | | | | This patch moves to nvmem support in the driver to use callback instead of regmap. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Sanchayan Maity <maitysanchayan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: qfprom: remove nvmem regmap dependencySrinivas Kandagatla2016-05-012-20/+37
| | | | | | | | | | | | | | | | | | This patch moves to nvmem support in the driver to use callback instead of regmap. Reported-by: Rajendra Nayak <rjendra@qti.qualcomm.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: core: remove regmap dependencySrinivas Kandagatla2016-05-012-28/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nvmem uses regmap_raw_read/write apis to read/write data from providers, regmap raw apis stopped working with recent kernels which removed raw accessors on mmio bus. This resulted in broken nvmem for providers which are based on regmap mmio bus. This issue can be fixed temporarly by moving to other regmap apis, but we might hit same issue in future. Moving to interfaces based on read/write callbacks from providers would be more robust. This patch removes regmap dependency from nvmem and introduces read/write callbacks from the providers. Without this patch nvmem providers like qfprom based on regmap mmio bus would not work. Reported-by: Rajendra Nayak <rjendra@qti.qualcomm.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: Fix build error of missing devm_ioremap_resource on UMKrzysztof Kozlowski2016-05-011-0/+2
|/ | | | | | | | | | | | | | | The devres.o gets linked if HAS_IOMEM is present so on ARCH=um allyesconfig (COMPILE_TEST) failed on many files with: drivers/built-in.o: In function `mtk_thermal_probe': mtk_thermal.c:(.text+0x394618): undefined reference to `devm_ioremap_resource' The users of devm_ioremap_resource() which are compile-testable should depend on HAS_IOMEM. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 07:39:02 +0100