- 09 Sep, 2017 38 commits
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Arvind Yadav authored
i2c_device_id are not supposed to change at runtime. All functions working with i2c_device_id provided by <linux/i2c.h> work with const i2c_device_id. So mark the non-const structs as const. Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Wim Van Sebroeck <wim@iguana.be>
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Arvind Yadav authored
pnp_device_id are not supposed to change at runtime. All functions working with pnp_device_id provided by <linux/pnp.h> work with const pnp_device_id. So mark the non-const structs as const. Signed-off-by:
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Geert Uytterhoeven authored
Document support for the Watchdog Timer (WDT) Controller in the Renesas R-Car D3 (r8a77995) SoC. No driver update is needed. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
Simon Horman <horms+renesas@verge.net.au> Acked-by:
Rob Herring <robh@kernel.org> Reviewed-by:
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Wolfram Sang authored
Signed-off-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by:
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Wolfram Sang authored
It is not needed outside probe() anymore. Signed-off-by:
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Wolfram Sang authored
On Renesas R-Car archs, RuntimePM does all the clock handling. So, use it consistently to enable/disable the clocks. Also make sure that clocks are really enabled around clk_get_rate(). clk_summary looks proper now: clock enable_cnt prepare_cnt rate ... Before this commit: At boot: rwdt 1 1 32768 0 0 WDT running: rwdt 2 2 32768 0 0 After this commit: At boot: rwdt 0 1 32768 0 0 WDT running rwdt 1 1 32768 0 0 Signed-off-by:
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Andrew Jeffery authored
Add support for configuring the drive strength and polarity on the AST2500, and the pulse duration on both the AST2400 and AST2500. Signed-off-by:
Andrew Jeffery <andrew@aj.id.au> Tested-by:
Matt Spinler <mspinler@linux.vnet.ibm.com> Reviewed-by:
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Andrew Jeffery authored
For the AST2500 and compatible watchdog controllers the external reset signal can be configured for push-pull or open-drain drive types, and in the case of push-pull driving, active low or high. Signed-off-by:
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Christopher Bostic authored
Describe device tree optional properties: * aspeed,reset-type = "cpu|soc|system|none" One of three different, mutually exclusive, values "cpu" : ARM CPU reset on signal "soc" : 'System on chip' reset "system" : Full system reset The value can also be set to "none" which indicates that no reset of any kind is to be done via this watchdog. This assumes another watchdog on the chip is to take care of resets. * aspeed,external-signal - Generate external signal (WDT1 and WDT2 only) * aspeed,alt-boot - Boot from alternate block on signal Signed-off-by:Christopher Bostic <cbostic@linux.vnet.ibm.com> Acked-by:
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Christopher Bostic authored
Reference the system device tree when configuring the watchdog engines. If property 'aspeed,reset_type' is present then set reset behavior based on the specified value. This can be one of three different mutually exclusive values * cpu - Reset CPU only on watchdog timeout * soc - Reset System on Chip * system - Full system reset No reset can also be specified by indicating: * none - No reset, assumes another watchdog is responsible for this. Add optional property 'aspeed,external-signal'. If present then configure to generate external signal on watchdog timeout. Signed-off-by: -
fzuuzf@googlemail.com authored
...da9063_watchdog, which contained nothing but struct watchdog_device and a struct da9063 pointer. Assign the struct da9063 pointer directly to the struct watchdog_device's driver_data field instead of creating struct da9063_watchdog and assigning it's address there. Spares a pointer's size data memory and an indirection level in the callbacks. Signed-off-by:
Karsten Wiese <fzuuzf@googlemail.com> Reviewed-by:
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Fabio Estevam authored
clk_prepare_enable() may fail, so we should better check its return value and propagate it in the case of error. Signed-off-by:
Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by:
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Fabio Estevam authored
platform_get_resource() may fail, so we should better check its return value and propagate an error in case it fails. This avoids a NULL pointer dereference a bit later in the code. Signed-off-by:
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Michal Simek authored
Add suspend/resume support to driver. Signed-off-by:
Michal Simek <michal.simek@xilinx.com> Reviewed-by:
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Maulik Jodhani authored
Improve CLK handling in the code to read freq via CCF. Also disable CLK asap and add clk handling code to start and stop. Signed-off-by:
Maulik Jodhani <maulik.jodhani@xilinx.com> Signed-off-by:
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Sean Wang authored
This updates dt-binding documentation for MediaTek MT7622 and MT7623 SoC. For the both SoCs supported all rely on the fallback binding of the case with "mediatek,mt6589-wdt". Signed-off-by:
Sean Wang <sean.wang@mediatek.com> Acked-by:
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Arvind Yadav authored
platform_device_id are not supposed to change at runtime. All functions working with platform_device_id provided by <linux/platform_device.h> work with const platform_device_id. So mark the non-const structs as const. Signed-off-by:
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Arvind Yadav authored
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Signed-off-by:
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Michal Simek authored
Showing message that driver is loaded is common across drivers. This change also fixes checkpatch (--strict) warning "Alignment should match open parenthesis". Signed-off-by:
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Michal Simek authored
Give read access to module parameters to all and write access to root. This change also improves driver error path testing. Signed-off-by:
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Julia Lawall authored
These watchdog_ops and watchdog_info structures are only stored in the ops and info fields of a watchdog_device structure, respectively, which are const. Thus make the watchdog_ops and watchdog_info structures const as well. Done with the help of Coccinelle. The rules for the watchdog_ops case are as follows: // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct watchdog_ops i@p = { ... }; @ok@ identifier r.i; struct watchdog_device e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct watchdog_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct watchdog_ops i = { ... }; // </smpl> Signed-off-by:Julia Lawall <Julia.Lawall@lip6.fr> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
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Wolfram Sang authored
We should never return more time left than there actually is. So, switch to a plain divider instead of DIV_ROUND_CLOSEST. Signed-off-by:
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Wolfram Sang authored
If we set RWTCSRB to 0, we can gain 4096 as another divider value. This is supported by all R-Car Gen2 and Gen3 devices which we aim to support. Signed-off-by:
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Wolfram Sang authored
The error margin of the clks_per_second variable was too large and caused offsets when used with clock frequencies which left a remainder after applying the dividers. Now we always calculate directly using the clock rate and the divider using some helper macros. That also means that DIV_ROUND_UP moves from probe to the multiplication macro. In probe, we don't need to ensure anymore that 'clks_per_sec' would go too fast but rather ensure that the lower limit is really at least 1 to certainly get a full cycle. Signed-off-by:
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Wolfram Sang authored
We should never return more time left than there actually is. So, switch to a plain divider instead of DIV_ROUND_CLOSEST. Signed-off-by:
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Wolfram Sang authored
When checking the clock rate, ensure also that counting all 16 bits takes at least one second to match the granularity of the framework. Signed-off-by:
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Wolfram Sang authored
Because the smallest clock divider we can select is 1, 'clks_per_sec' must be the same type as 'rate'. Signed-off-by:
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Philipp Zabel authored
Commit a53e35db ("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: linux-watchdog@vger.kernel.org Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by:
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Philipp Zabel authored
Commit a53e35db ("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: linux-watchdog@vger.kernel.org Signed-off-by:
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Philipp Zabel authored
Commit a53e35db ("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: linux-watchdog@vger.kernel.org Signed-off-by:
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Philipp Zabel authored
Commit a53e35db ("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: linux-watchdog@vger.kernel.org Signed-off-by:
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Martin Blumenstingl authored
The watchdog IP block on Meson8 and Meson8m2 is already supported by the existing meson-wdt driver. Meson8 uses the same register bits as Meson6, while the newer Meson8m2 SoC uses the same register bits as Meson8b. Currently watchdog support on Meson8 SoC already works because meson8.dtsi simply uses the "amlogic,meson6-wdt" compatible. Adding a separate compatible for Meson8 makes this more explicit though. Signed-off-by:
Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by:
Neil Armstrong <narmstrong@baylibre.com> Reviewed-by:
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Colin Ian King authored
Don't populate array chip_name on the stack but instead make it static. Makes the object code smaller by 40 bytes: Before: text data bss dec hex filename 5641 2840 384 8865 22a1 drivers/watchdog/w83627hf_wdt.o After: text data bss dec hex filename 5545 2896 384 8825 2279 drivers/watchdog/w83627hf_wdt.o Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
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Gustavo A. R. Silva authored
Check for watchdog_ops structures that are only stored in the ops field of a watchdog_device structure. This field is declared const, so watchdog_ops structures that have this property can be declared as const also. This issue was detected using Coccinelle and the following semantic patch: @r disable optional_qualifier@ identifier i; position p; @@ static struct watchdog_ops i@p = { ... }; @ok@ identifier r.i; struct watchdog_device e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct watchdog_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct watchdog_ops i = { ... }; Signed-off-by:Gustavo A. R. Silva <garsilva@embeddedor.com> Reviewed-by:
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Gustavo A. R. Silva authored
Check for watchdog_ops structures that are only stored in the ops field of a watchdog_device structure. This field is declared const, so watchdog_ops structures that have this property can be declared as const also. This issue was detected using Coccinelle and the following semantic patch: @r disable optional_qualifier@ identifier i; position p; @@ static struct watchdog_ops i@p = { ... }; @ok@ identifier r.i; struct watchdog_device e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct watchdog_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct watchdog_ops i = { ... }; Signed-off-by: -
Gustavo A. R. Silva authored
Check for watchdog_ops structures that are only stored in the ops field of a watchdog_device structure. This field is declared const, so watchdog_ops structures that have this property can be declared as const also. This issue was detected using Coccinelle and the following semantic patch: @r disable optional_qualifier@ identifier i; position p; @@ static struct watchdog_ops i@p = { ... }; @ok@ identifier r.i; struct watchdog_device e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct watchdog_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct watchdog_ops i = { ... }; Signed-off-by: -
Gustavo A. R. Silva authored
Check for watchdog_ops structures that are only stored in the ops field of a watchdog_device structure. This field is declared const, so watchdog_ops structures that have this property can be declared as const also. This issue was detected using Coccinelle and the following semantic patch: @r disable optional_qualifier@ identifier i; position p; @@ static struct watchdog_ops i@p = { ... }; @ok@ identifier r.i; struct watchdog_device e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct watchdog_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct watchdog_ops i = { ... }; Signed-off-by: -
Wim Van Sebroeck authored
This reverts commit 1fccb730. Reported as Bug 196509 - iTCO_wdt regression reboot before timeout expire Signed-off-by:
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- 08 Sep, 2017 2 commits
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git://git.infradead.org/linux-platform-drivers-x86Linus Torvalds authored
Pull x86 platform driver updates from Darren Hart: "Several fixes from static analysis and message noise reduction. Correct WMI core and related drivers to evaluate instance number 0x0 in accordance with the documentation. Add intel-telemetry support for Gemini Lake. Various individual driver fixes noted below. dell-wmi: - Update dell_wmi_check_descriptor_buffer() to new model intel-vbtn: - reduce unnecessary messages for normal users - match power button on press rather than release intel-hid: - reduce unnecessary messages for normal users thinkpad_acpi: - Fix warning about deprecated hwmon_device_register wmi: - Fix check for method instance number ideapad-laptop: - Expose conservation mode switch intel_pmc_core: - Make the driver PCH family agnostic peaq-wmi: - Evaluate wmi method with instance number 0x0 - silence a static checker warning mxm-wmi: - Evaluate wmi method with instance number 0x0 asus-wmi: - Evaluate wmi method with instance number 0x0 intel_scu_ipc: - make intel_scu_ipc_pdata_t const intel_mid_powerbtn: - make mid_pb_ddata const - fix error return code in mid_pb_probe() hp-wmi: - Remove unused macro helper - Correctly determine method id in WMI calls dell-wmi: - Fix driver interface version query intel_telemetry: - remove redundant macro definition - Add GLK PSS Event Table alienware-wmi: - fix format string overflow warning ibm_rtl: - remove unnecessary static in ibm_rtl_write() msi-wmi: - remove unnecessary static in msi_wmi_notify()" * tag 'platform-drivers-x86-v4.14-1' of git://git.infradead.org/linux-platform-drivers-x86: (23 commits) platform/x86: dell-wmi: Update dell_wmi_check_descriptor_buffer() to new model platform/x86: intel-vbtn: reduce unnecessary messages for normal users platform/x86: intel-hid: reduce unnecessary messages for normal users platform/x86: thinkpad_acpi: Fix warning about deprecated hwmon_device_register platform/x86: wmi: Fix check for method instance number platform/x86: ideapad-laptop: Expose conservation mode switch platform/x86: intel_pmc_core: Make the driver PCH family agnostic platform/x86: peaq-wmi: Evaluate wmi method with instance number 0x0 platform/x86: mxm-wmi: Evaluate wmi method with instance number 0x0 platform/x86: asus-wmi: Evaluate wmi method with instance number 0x0 platform/x86: intel_scu_ipc: make intel_scu_ipc_pdata_t const platform/x86: intel_mid_powerbtn: make mid_pb_ddata const platform/x86: intel_mid_powerbtn: fix error return code in mid_pb_probe() platform/x86: hp-wmi: Remove unused macro helper platform/x86: hp-wmi: Correctly determine method id in WMI calls platform/x86: intel-vbtn: match power button on press rather than release platform/x86: dell-wmi: Fix driver interface version query platform/x86: intel_telemetry: remove redundant macro definition platform/x86: intel_telemetry: Add GLK PSS Event Table platform/x86: alienware-wmi: fix format string overflow warning ...
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC updates from Vineet Gupta: - Support for HSDK board hosting a Quad core HS38x4 based SoC running @1GHz (and some prerrquisite changes such as ability to scoot the kernel code/data from start of memory map etc) - Quite a few updates for EZChip (Mellanox) platform - Fixes to fault/exception printing * tag 'arc-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (26 commits) ARC: Re-enable MMU upon Machine Check exception ARC: Show fault information passed to show_kernel_fault_diag() ARC: [plat-hsdk] initial port for HSDK board ARC: mm: Decouple RAM base address from kernel link address ARCv2: IOC: Tighten up the contraints (specifically base / size alignment) ARC: [plat-axs103] refactor the DT fudging code ARC: [plat-axs103] use clk driver #2: Add core pll node to DT to manage cpu clk ARC: [plat-axs103] use clk driver #1: Get rid of platform specific cpu clk setting ARCv2: SLC: provide a line based flush routine for debugging ARC: Hardcode ARCH_DMA_MINALIGN to max line length we may have ARC: [plat-eznps] handle extra aux regs #2: kernel/entry exit ARC: [plat-eznps] handle extra aux regs #1: save/restore on context switch ARC: [plat-eznps] avoid toggling of DPC register ARC: [plat-eznps] Update the init sequence of aux regs per cpu. ARC: [plat-eznps] new command line argument for HW scheduler at MTM ARC: set boot print log level to PR_INFO ARC: [plat-eznps] Handle user memory error same in simulation and silicon ARC: [plat-eznps] use schd.wft instruction instead of sleep at idle task ARC: create cpu specific version of arch_cpu_idle() ARC: [plat-eznps] spinlock aware for MTM ...
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