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2016-03-14rtc: max77686: move initialisation of rtc regmap, irq chip locallyLaxman Dewangan3-106/+130
To make RTC block of MAX77686/MAX77802 as independent driver, move the registration of i2c device, regmap for register access and irq_chip for interrupt support inside the RTC driver. Removed the same initialisation from MFD driver. Having this change will allow to reuse this driver for different PMIC/devices from Maxim Semiconductor if they kept same RTC IP on different PMIC. Some of examples as PMIC MAX77620, MAX20024 where same RTC IP used and hence driver for these chips will use this driver only for RTC support. Suggested-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Laxman Dewangan <[email protected]> Tested-by: Javier Martinez Canillas <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Acked-by: Lee Jones <[email protected]> Tested-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14mfd: max77686: do not set i2c client data for rtc i2c clientLaxman Dewangan1-1/+0
There is different RTC I2C address for RTC block in MAX77686. Driver is creating dummy i2c client for this address to access the register of this IP block. As there is no call to i2c_get_clientdata() for rtc_i2c client, there is no need to store pointer and hence removing the call to set client data for rtc i2c client. Suggested-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Laxman Dewangan <[email protected]> Tested-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Tested-by: Javier Martinez Canillas <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Acked-by: Lee Jones <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: max77686: avoid reference of parent device info multiple placesLaxman Dewangan1-29/+23
Get rid of referring parent device info for register access all the places by making regmap as part of max77686 rtc device info. This will also remove the need of storing parent device info in max77686 rtc device info as this is no more required. Signed-off-by: Laxman Dewangan <[email protected]> Tested-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Tested-by: Javier Martinez Canillas <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: max77686: use rtc regmap to access RTC registersLaxman Dewangan1-3/+4
rtc_regmap should be used to access all RTC registers instead of parent regmap regardless of what chip or property have it. This makes the register access uniform and extendible for other chips. Signed-off-by: Laxman Dewangan <[email protected]> Tested-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Tested-by: Javier Martinez Canillas <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: max77686: fix checkpatch errorLaxman Dewangan1-12/+13
Fix following check patch error in rtc-max77686 driver: - Alignment should match open parenthesis. - braces {} should be used on all arms of this statement. - Prefer using the BIT macro Signed-off-by: Laxman Dewangan <[email protected]> Tested-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Tested-by: Javier Martinez Canillas <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: allow compilation of sun6i RTC for all sunxi SoCsAndre Przywara1-3/+4
At the moment the "sun6i" RTC drivers depends on having two specific SoC families selected. The Allwinner A64 SoC has the same RTC, so extend the Kconfig option to allow inclusion of the driver for all Allwinner SoCs. Signed-off-by: Andre Przywara <[email protected]> Acked-by: Maxime Ripard <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: add driver for RX6110SA real time clockSteffen Trumtrar3-0/+412
The RX6110 comes in two different variants: SPI and I2C. This driver only supports the SPI variant. If the need ever arises to also support the I2C variant, this driver could easily be refactored to support both cases. Reviewed-by: Philipp Zabel <[email protected]> Signed-off-by: Steffen Trumtrar <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14Documentation: devicetree: add epson rx6110 bindingSteffen Trumtrar1-0/+39
Add the binding documentation for the Epson RX6110 RTC. Acked-by: Rob Herring <[email protected]> Reviewed-by: Philipp Zabel <[email protected]> Signed-off-by: Steffen Trumtrar <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: pcf2123: avoid resetting the clock if possibleJoshua Clayton1-3/+12
pcf2123 data sheet recommends a software reset when the chip is first powered on. This change avoids resetting the chip every time the driver is loaded, which has some negative effects. There are several registers including a clock rate adjustment that really should survive a reload of the driver (or reboot). In addition, stopping and restarting the clock to verify the chip is there is not a good thing once the time is set. According to the data sheet, the seconds register has a 1 in the high bit when the voltage has gotten low. We check for this condition, as well as whether the time retrieved from the chip is valid. We reset the rtc only if the time is not reliable and valid. This is sufficient for checking for the presence of the chip, as either all zeros or all 0xff will result in an invalid time/date Signed-off-by: Joshua Clayton <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: pcf2123: refactor chip reset into a functionJoshua Clayton1-28/+36
Refactor chip reset items into its own function, isolating it from the rest of the device probe. Subsequent commits will avoid calling this code. Signed-off-by: Joshua Clayton <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: pcf2123: clean up writes to the rtc chipJoshua Clayton1-35/+32
Add new functions pcf2123_write(), and pcf2123_write_reg(). Use named defines for the values being written. This improves modularity and readability, and reduces lines of code. Signed-off-by: Joshua Clayton <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: pcf2123: clean up reads from the chipJoshua Clayton1-17/+19
Put read operations into a function. This improves modularity and readability. Signed-off-by: Joshua Clayton <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14rtc: pcf2123: define registers and bit macrosJoshua Clayton1-3/+47
Add defines for all 16 registers in the pcf2123. Add defines for useful bits from several registers I've tried to document all the registers, and as best as possible, all the special bits they employ Use BIT() wherever possible in the bit definitions Signed-off-by: Joshua Clayton <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-03-14s390/pci: enforce fmb page boundary ruleSebastian Ott2-2/+5
The function measurement block must not cross a page boundary. Ensure that by raising the alignment requirement to the smallest power of 2 larger than the size of the fmb. Fixes: d0b088531 ("s390/pci: performance statistics and debug infrastructure") Cc: [email protected] # v3.8+ Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2016-03-14iscsi_ibft: Add prefix-len attr and display netmaskHannes Reinecke3-0/+10
The iBFT table only specifies a prefix length, not a netmask. And the netmask is pretty much pointless for IPv6. So introduce a new attribute 'prefix-len'. Some older user-space code might rely on the netmask attribute being present, so we should always display it. Changes from v1: - Combined two patches into one Changes from v2: - Cleaned up/corrected wording for patch description v3: [Put Hannes back as author] Signed-off-by: Hannes Reinecke <[email protected]> Signed-off-by: Lee Duncan <[email protected]> Reviewed-by: Mike Christie <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2016-03-14Merge branch 'pm-tools'Rafael J. Wysocki3-201/+728
* pm-tools: tools/power turbostat: bugfix: TDP MSRs print bits fixing tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump tools/power turbostat: call __cpuid() instead of __get_cpuid() tools/power turbostat: indicate SMX and SGX support tools/power turbostat: detect and work around syscall jitter tools/power turbostat: show GFX%rc6 tools/power turbostat: show GFXMHz tools/power turbostat: show IRQs per CPU tools/power turbostat: make fewer systems calls tools/power turbostat: fix compiler warnings tools/power turbostat: add --out option for saving output in a file tools/power turbostat: re-name "%Busy" field to "Busy%" tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding tools/power turbostat: Intel Xeon x200: fix erroneous bclk value tools/power turbostat: allow sub-sec intervals tools/power turbostat: Decode MSR_MISC_PWR_MGMT tools/power turbostat: decode HWP registers x86 msr-index: Simplify syntax for HWP fields tools/power turbostat: CPUID(0x16) leaf shows base, max, and bus frequency tools/power turbostat: decode more CPUID fields
2016-03-14Merge branches 'pm-cpuidle', 'pm-sleep' and 'pm-domains'Rafael J. Wysocki8-72/+143
* pm-cpuidle: cpuidle: menu: help gcc generate slightly better code cpuidle: menu: avoid expensive square root computation * pm-sleep: PM / suspend: replacing printk PM/freezer: y2038, use boottime to compare tstamps PM / sleep: declare __tracedata symbols as char[] rather than char * pm-domains: PM / Domains: Fix potential NULL pointer dereference PM / Domains: Fix removal of a subdomain PM / Domains: Propagate start and restore errors during runtime resume PM / Domains: Join state name and index in debugfs output PM / Domains: Restore alignment of slaves in debugfs output PM / Domains: remove old power on/off latencies ARM: imx6: pm: declare pm domain latency on power_state struct PM / Domains: Support for multiple states
2016-03-14Merge branch 'pm-cpufreq'Rafael J. Wysocki26-1718/+1503
* pm-cpufreq: (94 commits) intel_pstate: Do not skip samples partially intel_pstate: Remove freq calculation from intel_pstate_calc_busy() intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance() intel_pstate: Optimize calculation for max/min_perf_adj intel_pstate: Remove extra conversions in pid calculation cpufreq: Move scheduler-related code to the sched directory Revert "cpufreq: postfix policy directory with the first CPU in related_cpus" cpufreq: Reduce cpufreq_update_util() overhead a bit cpufreq: Select IRQ_WORK if CPU_FREQ_GOV_COMMON is set cpufreq: Remove 'policy->governor_enabled' cpufreq: Rename __cpufreq_governor() to cpufreq_governor() cpufreq: Relocate handle_update() to kill its declaration cpufreq: governor: Drop unnecessary checks from show() and store() cpufreq: governor: Fix race in dbs_update_util_handler() cpufreq: governor: Make gov_set_update_util() static cpufreq: governor: Narrow down the dbs_data_mutex coverage cpufreq: governor: Make dbs_data_mutex static cpufreq: governor: Relocate definitions of tuners structures cpufreq: governor: Move per-CPU data to the common code cpufreq: governor: Make governor private data per-policy ...
2016-03-14Merge branch 'pm-opp'Rafael J. Wysocki5-408/+879
* pm-opp: PM / OPP: Rename structures for clarity PM / OPP: Fix incorrect comments PM / OPP: Initialize regulator pointer to an error value PM / OPP: Initialize u_volt_min/max to a valid value PM / OPP: Fix NULL pointer dereference crash when disabling OPPs PM / OPP: Add dev_pm_opp_set_rate() PM / OPP: Manage device clk PM / OPP: Parse clock-latency and voltage-tolerance for v1 bindings PM / OPP: Introduce dev_pm_opp_get_max_transition_latency() PM / OPP: Introduce dev_pm_opp_get_max_volt_latency() PM / OPP: Disable OPPs that aren't supported by the regulator PM / OPP: get/put regulators from OPP core
2016-03-14Merge branch 'powercap'Rafael J. Wysocki2-106/+115
* powercap: powercap/rapl: track lead cpu per package powercap/rapl: add package reference per domain powercap/rapl: reduce ipi calls cpumask: export cpumask_any_but
2016-03-14Merge branch 'device-properties'Rafael J. Wysocki1-8/+17
* device-properties: device property: fix for a case of use-after-free
2016-03-14Merge branches 'acpi-ec', 'acpi-fan', 'acpi-video' and 'acpi-misc'Rafael J. Wysocki9-40/+32
* acpi-ec: ACPI / EC: Deny write access unless requested by module param * acpi-fan: ACPI / fan: Make struct dev_pm_ops const * acpi-video: ACPI / video: remove unused device_decode array * acpi-misc: ACPI / util: remove redundant check if element is NULL ACPI: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses drivers/acpi: make pmic/intel_pmic_crc.c explicitly non-modular drivers/acpi: make apei/ghes.c more explicitly non-modular drivers/acpi: make bgrt driver explicitly non-modular
2016-03-14Merge branches 'acpi-pci', 'acpi-soc' and 'pnp'Rafael J. Wysocki6-5/+49
* acpi-pci: x86/ACPI/PCI: Recognize that Interrupt Line 255 means "not connected" * acpi-soc: i2c: designware: Add device HID for future AMD I2C controller * pnp: PNP / ACPI: add ACPI_RESOURCE_TYPE_SERIAL_BUS as a valid type
2016-03-14Merge branches 'acpi-processor' and 'acpi-cppc'Rafael J. Wysocki7-114/+359
* acpi-processor: ACPI / sleep: move acpi_processor_sleep to sleep.c ACPI / processor : add support for ACPI0010 processor container ACPI / processor_idle: replace PREFIX with pr_fmt * acpi-cppc: ACPI / CPPC: use MRTT/MPAR to decide if/when a req can be sent ACPI / CPPC: replace writeX/readX to PCC with relaxed version mailbox: pcc: optimized pcc_send_data ACPI / CPPC: optimized cpc_read and cpc_write ACPI / CPPC: Optimize PCC Read Write operations
2016-03-14Merge branches 'acpi-scan', 'acpi-osl' and 'acpi-apei'Rafael J. Wysocki10-85/+260
* acpi-scan: ACPI / scan: AMBA bus probing support ACPI: introduce a function to find the first physical device * acpi-osl: ACPI / OSL: Add support to install tables via initrd ACPI / OSL: Clean up initrd table override code * acpi-apei: ACPI / APEI: ERST: Fixed leaked resources in erst_init ACPI / APEI: Fix leaked resources
2016-03-14Merge branch 'acpica'Rafael J. Wysocki26-190/+374
* acpica: ACPICA / Interpreter: Fix a regression triggered because of wrong Linux ECDT support ACPICA: Utilities: Update trace mechinism for acquire_object ACPICA: Namespace: Rename acpi_gbl_reg_methods_enabled to acpi_gbl_namespace_initialized ACPICA: Namespace: Ensure \_SB._INI executed before any _REG ACPICA: ACPICA: Tune _REG evaluations order in the initialization steps ACPICA: Tables: make default region accessible during the table load ACPICA: ACPI 6.0/iASL: Add support for the External AML opcode ACPICA: Remove unnecessary arguments to ACPI_INFO ACPICA: debugger: dbconvert: free pld_info on error return path ACPICA: iASL: Update to use internal acpi_ut_strtoul64 function ACPICA: iASL: Fix some typos with the name strtoul64 ACPICA: Remove incorrect "static" from a global structure ACPICA: aclocal: Put parens around some definitions.
2016-03-14avr32: fix asm operand constraint in cmpxchg()Mans Rullgard1-1/+1
If the 'old' operand to cmpxchg() is a constant wider than 21 bits, linking fails with a "relocation truncated to fit: R_AVR32_21S" error. Fix this by replacing the "i" constraint with "Ks21" which makes the compiler use a temporary register for out of range constants. Signed-off-by: Mans Rullgard <[email protected]> Acked-by: Hans-Christian Noren Egtvedt <[email protected]> Tested-by: Andy Shevchenko <[email protected]> Tested-by: Sudip Mukherjee <[email protected]>
2016-03-14avr32: wire up copy_file_range syscallHans-Christian Egtvedt3-0/+11
This patch wires up the new copy_file_range syscall on AVR32. On AVR32, all parameters beyond the 5th are passed on the stack. System calls don't use the stack -- they borrow a callee-saved register instead. This means that syscalls that take 6 parameters must be called through a stub that pushes the last parameter on the stack. Signed-off-by: Hans-Christian Noren Egtvedt <[email protected]>
2016-03-14leds: triggers: simplify led_trigger_storeHeiner Kallweit1-11/+2
led_trigger_store can be significantly simplified by using sysfs_streq(). Signed-off-by: Heiner Kallweit <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: max8997: Use devm_led_classdev_registerAmitoj Kaur Chawla1-13/+1
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata in probe function and the remove function, max8997_led_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: da903x: Use devm_led_classdev_registerAmitoj Kaur Chawla1-11/+1
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata in probe function and the remove function, da903x_led_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: s3c24xx: Use devm_led_classdev_registerAmitoj Kaur Chawla1-18/+1
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove unnecessary function pdev_to_gpio, platform_set_drvdata in the probe function and the remove function, s3c24xx_led_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: wm831x-status: Use devm_led_classdev_registerAmitoj Kaur Chawla1-12/+1
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata from probe function and the remove function, wm831x_status_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: lp8788: Use devm_led_classdev_registerAmitoj Kaur Chawla1-13/+1
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata in probe function and the remove function, lp8788_led_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: 88pm860x: Use devm_led_classdev_registerAmitoj Kaur Chawla1-11/+1
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata in probe function and the remove function, pm860x_led_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: Add SN3218 and SN3216 support to the IS31FL32XX driverDavid Rivshin3-7/+14
Si-En Technology was acquired by ISSI in 2011, and it appears that the IS31FL3218/IS31FL3216 are just rebranded SN3218/SN3216 devices. Add the "si-en,sn3218" and "si-en,sn3216" compatible strings into the IS31FL32XX driver as aliases for the issi equivalents, and update binding documentation. Datasheets: IS31FL3218: http://www.issi.com/WW/pdf/31FL3218.pdf SN3218: http://www.si-en.com/uploadpdf/s2011517171720.pdf IS31FL3216: http://www.issi.com/WW/pdf/31FL3216.pdf SN3216: http://www.si-en.com/uploadpdf/SN3216201152410148.pdf Signed-off-by: David Rivshin <[email protected]> Acked-by: Rob Herring <[email protected]> Tested-by: Stefan Wahren <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14of: Add vendor prefix for Si-En TechnologyStefan Wahren1-0/+1
Si-En Technology is a fabless design house which offers audio amplifiers, LED drivers and sensors. Signed-off-by: Stefan Wahren <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: Add driver for the ISSI IS31FL32xx family of LED controllersDavid Rivshin3-0/+513
The IS31FL32xx family of LED controllers are I2C devices with multiple constant-current channels, each with independent 256-level PWM control. Datasheets: http://www.issi.com/US/product-analog-fxled-driver.shtml This has been tested on the IS31FL3236 and IS31FL3216, on an ARM (TI am335x) platform. The programming paradigm of these devices is similar in the following ways: - All registers are 8 bit - All LED control registers are write-only - Each LED channel has a PWM register (0-255) - PWM register writes are shadowed until an Update register is poked - All have a concept of Software Shutdown, which disables output However, there are some differences in devices: - 3236/3235 have a separate Control register for each LED, (3218/3216 pack the enable bits into fewer registers) - 3236/3235 have a per-channel current divisor setting - 3236/3235 have a Global Control register that can turn off all LEDs - 3216 is unique in a number of ways - OUT9-OUT16 can be configured as GPIOs instead of LED controls - LEDs can be programmed with an 8-frame animation, with programmable delay between frames - LEDs can be modulated by an input audio signal - Max output current can be adjusted from 1/4 to 2x globally - Has a Configuration register instead of a Shutdown register This driver currently only supports the base PWM control function of these devices. The following features of these devices are not implemented, although it should be possible to add them in the future: - All devices are capable of going into a lower-power "software shutdown" mode. - The is31fl3236 and is31fl3235 can reduce the max output current per-channel with a divisor of 1, 2, 3, or 4. - The is31fl3216 can use some LED channels as GPIOs instead. - The is31fl3216 can animate LEDs in hardware. - The is31fl3216 can modulate LEDs according to an audio input. - The is31fl3216 can reduce/increase max output current globally. Signed-off-by: David Rivshin <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14DT: leds: Add binding for the ISSI IS31FL32xx family of LED controllersDavid Rivshin1-0/+49
This adds a binding description for the is31fl3236/35/18/16 I2C LED controllers. Signed-off-by: David Rivshin <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14DT: Add vendor prefix for Integrated Silicon Solutions Inc.David Rivshin1-0/+1
ISSI is the stock ticker Integrated Silicon Solutions Inc. Company website: http://www.issi.com Signed-off-by: David Rivshin <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: lm3533: Use devm_led_classdev_registerAmitoj Kaur Chawla1-9/+3
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. To be compatible with this change, remove an unnecessary label by replacing it with direct return statement. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: gpio: Use GPIOF_OUT_INIT_LOW instead of hardcoded zeroGeert Uytterhoeven1-1/+1
Use the GPIO flag definition instead of a numeric literal, so the casual reader grepping for GPIOF_ will find the GPIO flags used. Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: core: add helpers for calling brightness_set(_blocking)Heiner Kallweit1-14/+26
Add helpers for calling brightness_set(_blocking) allowing to simplify the code and make it better readable. Signed-off-by: Heiner Kallweit <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: leds-gpio: Fix return value check in create_gpio_led()Wei Yongjun1-2/+2
In case of error, the function gpio_to_desc() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: lp3944: improve wording and formatting in a commentAntonio Ospite1-2/+5
Improve the wording for the comment about the led status, and while at it also use the standard formatting for multi-line comments. Signed-off-by: Antonio Ospite <[email protected]> Cc: Richard Purdie <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: core: avoid error message when a USB LED device is unpluggedHeiner Kallweit3-1/+8
When a USB LED device is unplugged the remove call chain calls led_classdev_unregister which tries to switch the LED off. As the device has been removed already this results in a ENODEV error message in dmesg. Avoid this error message by ignoring ENODEV in calls from led_classdev_unregister if the LED device is flagged as pluggable. Therefore a new flag LED_HW_PLUGGABLE was introduced which should be set by all LED drivers handling pluggable LED devices (mainly USB LED devices). Signed-off-by: Heiner Kallweit <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14leds: core: fix misleading comment after workqueue removal from driversHeiner Kallweit1-2/+4
Now that workqueues have been removed from individual drivers and were replaced with a core-internal workqueue we shouldn't encourage people to add new workqueues to drivers. Signed-off-by: Heiner Kallweit <[email protected]> Signed-off-by: Jacek Anaszewski <[email protected]>
2016-03-14Merge tag 'irqchip-core-4.6-3' of ↵Thomas Gleixner1-2/+5
git://git.infradead.org/users/jcooper/linux into irq/core Pull irqchip core changes from Jason Cooper: - mvebu: Update dt binding docs for new odmi driver
2016-03-13Linux 4.5Linus Torvalds1-1/+1
2016-03-14Merge branch 'turbostat' of ↵Rafael J. Wysocki3-201/+728
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux into pm-tools Pull turbostat updates for 4.6 from Len Brown. * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: bugfix: TDP MSRs print bits fixing tools/power turbostat: correct output for MSR_NHM_SNB_PKG_CST_CFG_CTL dump tools/power turbostat: call __cpuid() instead of __get_cpuid() tools/power turbostat: indicate SMX and SGX support tools/power turbostat: detect and work around syscall jitter tools/power turbostat: show GFX%rc6 tools/power turbostat: show GFXMHz tools/power turbostat: show IRQs per CPU tools/power turbostat: make fewer systems calls tools/power turbostat: fix compiler warnings tools/power turbostat: add --out option for saving output in a file tools/power turbostat: re-name "%Busy" field to "Busy%" tools/power turbostat: Intel Xeon x200: fix turbo-ratio decoding tools/power turbostat: Intel Xeon x200: fix erroneous bclk value tools/power turbostat: allow sub-sec intervals tools/power turbostat: Decode MSR_MISC_PWR_MGMT tools/power turbostat: decode HWP registers x86 msr-index: Simplify syntax for HWP fields tools/power turbostat: CPUID(0x16) leaf shows base, max, and bus frequency tools/power turbostat: decode more CPUID fields
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