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2020-07-02rtc: imxdi: fix trivial typosTales L. da Aparecida1-2/+2
Fix typos 'pionter' -> 'pointer' and 'softwere' -> 'software' Signed-off-by: Tales L. da Aparecida <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2019-07-22rtc: imxdi: use devm_platform_ioremap_resource() to simplify codeAnson Huang1-3/+1
Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexandre Belloni <[email protected]>
2019-05-08rtc: imxdi: remove unused variableAnders Roxell1-1/+0
This variable is no longer used and the compiler rightly complains that it should be removed. ../drivers/rtc/rtc-imxdi.c: In function ‘dryice_rtc_set_alarm’: ../drivers/rtc/rtc-imxdi.c:633:16: warning: unused variable ‘now’ [-Wunused-variable] unsigned long now; ^~~ Rework to remove the unused variable. Fixes: 629d488a3eb6 ("rtc: imxdi: remove unnecessary check") Signed-off-by: Anders Roxell <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2019-04-29rtc: imxdi: convert to SPDX identifierAlexandre Belloni1-11/+1
Use SPDX-License-Identifier instead of a verbose license text. Signed-off-by: Alexandre Belloni <[email protected]>
2019-04-29rtc: imxdi: remove unnecessary checkAlexandre Belloni1-9/+1
The RTC core already ensures the alarm is set to a time in the future, it is not necessary to check again in the driver. Signed-off-by: Alexandre Belloni <[email protected]>
2019-04-29rtc: imxdi: use .set_timeAlexandre Belloni1-3/+3
Use .set_time instead of the deprecated .set_mmss. Signed-off-by: Alexandre Belloni <[email protected]>
2019-04-29rtc: imxdi: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni1-5/+3
Call the 64bit versions of rtc_tm time conversion now that the range is enforced by the core. Signed-off-by: Alexandre Belloni <[email protected]>
2019-04-29rtc: imxdi: set rangeAlexandre Belloni1-5/+10
The RTC Time Counter MSB Register contains the 32 most significant bits (47:16) of the 47-bit RTC Time Counter. Clocked by a 32.768 KHz clock, this register is effectively a 32-bit seconds counter. Signed-off-by: Alexandre Belloni <[email protected]>
2017-06-20sched/wait: Disambiguate wq_entry->task_list and wq_head->task_list namingIngo Molnar1-1/+1
So I've noticed a number of instances where it was not obvious from the code whether ->task_list was for a wait-queue head or a wait-queue entry. Furthermore, there's a number of wait-queue users where the lists are not for 'tasks' but other entities (poll tables, etc.), in which case the 'task_list' name is actively confusing. To clear this all up, name the wait-queue head and entry list structure fields unambiguously: struct wait_queue_head::task_list => ::head struct wait_queue_entry::task_list => ::entry For example, this code: rqw->wait.task_list.next != &wait->task_list ... is was pretty unclear (to me) what it's doing, while now it's written this way: rqw->wait.head.next != &wait->entry ... which makes it pretty clear that we are iterating a list until we see the head. Other examples are: list_for_each_entry_safe(pos, next, &x->task_list, task_list) { list_for_each_entry(wq, &fence->wait.task_list, task_list) { ... where it's unclear (to me) what we are iterating, and during review it's hard to tell whether it's trying to walk a wait-queue entry (which would be a bug), while now it's written as: list_for_each_entry_safe(pos, next, &x->head, entry) { list_for_each_entry(wq, &fence->wait.head, entry) { Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Signed-off-by: Ingo Molnar <[email protected]>
2017-01-11rtc: constify rtc_class_ops structuresBhumika Goyal1-1/+1
Declare rtc_class_ops structures as const as they are only passed as an argument to the function devm_rtc_device_register. This argument is of type const struct rtc_class_ops *, so rtc_class_ops structures having this property can be declared const. Done using Coccinelle: @r1 disable optional_qualifier @ identifier i; position p; @@ static struct rtc_class_ops i@p = {...}; @ok1@ identifier r1.i; position p; @@ devm_rtc_device_register(...,&i@p,...) @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct rtc_class_ops i; Signed-off-by: Bhumika Goyal <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2017-01-11rtc: imxdi: use the security violation interruptMartin Kaiser1-9/+22
The DryIce chipset has a dedicated security violation interrupt that is triggered for security violations (if configured to do so). According to the publicly available imx258 reference manual, irq 56 is used for this interrupt. If an irq number is provided for the security violation interrupt, install the same handler that we're already using for the "normal" interrupt. imxdi->irq is used only in the probe function, make it a local variable. Signed-off-by: Martin Kaiser <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-12-07rtc: imxdi: (trivial) fix a typoMartin Kaiser1-1/+1
Fix a typo Signed-off-by: Martin Kaiser <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2016-01-11rtc: imxdi: fix spelling mistake in warning messageColin Ian King1-1/+1
Minor issue, fix spelling mistake, happend -> happened Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2015-06-19rtc: imxdi: when locked, do not fail silentlyJuergen Borleis1-3/+24
If the DryICE unit is locked it is impossible to set the time. Provide an error message for this case. Signed-off-by: Juergen Borleis <[email protected]> Signed-off-by: Robert Schwebel <[email protected]> [rsc: got NDA clearance from Freescale] Signed-off-by: Alexandre Belloni <[email protected]>
2015-06-19rtc: imxdi: monitor a security violation at runtimeJuergen Borleis1-2/+19
Maybe the unit enters the hardware related state at runtime and not at system boot time (after a power cycle). Signed-off-by: Juergen Borleis <[email protected]> Signed-off-by: Robert Schwebel <[email protected]> [rsc: got NDA clearance from Freescale] Signed-off-by: Alexandre Belloni <[email protected]>
2015-06-19rtc: imxdi: add the unit recovery codeJuergen Borleis1-38/+279
This code is required to recover the unit from a security violation. Hopefully this code can recover the unit from a hardware related invalid state as well. Signed-off-by: Juergen Borleis <[email protected]> Signed-off-by: Robert Schwebel <[email protected]> [rsc: got NDA clearance from Freescale] Signed-off-by: Alexandre Belloni <[email protected]>
2015-06-19rtc: imxdi: add some background info about the states the machine can be inJuergen Borleis1-0/+43
Document the i.MX DryIce machine states. Signed-off-by: Juergen Borleis <[email protected]> Signed-off-by: Robert Schwebel <[email protected]> [rsc: got NDA clearance from Freescale] Signed-off-by: Alexandre Belloni <[email protected]>
2015-06-19rtc: imxdi: avoid the __raw* register access functionsJuergen Borleis1-22/+22
Be independent of the endianness of the kernel. Signed-off-by: Juergen Borleis <[email protected]> Signed-off-by: Alexandre Belloni <[email protected]>
2015-02-13drivers/rtc/rtc-imxdi.c: add more known register bitsJuergen Borleis1-4/+40
Intended for monitoring and controlling the security features. These bits are required to bring this unit back to live after a security violation event was detected. The code to bring it back to live will follow after a vendor clearance. Signed-off-by: Juergen Borleis <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2015-02-13drivers/rtc/rtc-imxdi.c: trivial clean up codeJuergen Borleis1-3/+3
Signed-off-by: Juergen Borleis <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-10-20rtc: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <[email protected]>
2014-04-03drivers/rtc/rtc-imxdi.c: check the return value from clk_prepare_enable()Fabio Estevam1-1/+3
clk_prepare_enable() may fail, so let's check its return value and propagate it in the case of error. Signed-off-by: Fabio Estevam <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2013-09-11rtc: simplify devm_request_mem_region/devm_ioremapJulia Lawall1-12/+4
Convert the composition of devm_request_mem_region and devm_ioremap to a single call to devm_ioremap_resource. The associated call to platform_get_resource is also simplified and moved next to the new call to devm_ioremap_resource. This was done using a combination of the semantic patches devm_ioremap_resource.cocci and devm_request_and_ioremap.cocci, found in the scripts/coccinelle/api directory. In rtc-lpc32xx.c and rtc-mv.c, the local variable size is no longer needed. In rtc-ds1511.c the size field of the local structure is not useful any more, and is deleted. Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2013-04-29rtc: rtc-imxdi: use devm_rtc_device_register()Jingoo Han1-3/+1
devm_rtc_device_register() is device managed and makes cleanup paths simpler. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2013-04-29rtc: rtc-imxdi: use module_platform_driver_probe()Jingoo Han1-12/+1
Use module_platform_driver_probe() macro which makes the code smaller and simpler. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2013-04-29rtc: rtc-imxdi: add __init/__exit annotationJingoo Han1-3/+3
When platform_driver_probe() is used, bind/unbind via sysfs is disabled. Thus, __init/__exit annotations can be added to probe()/remove(). Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2013-02-21rtc: rtc-imxdi: use devm_clk_get()Jingoo Han1-3/+1
Use devm_clk_get() to make cleanup paths more simple. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2013-01-03Drivers: rtc: remove __dev* attributes.Greg Kroah-Hartman1-2/+2
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Srinidhi Kasagar <[email protected]> Cc: Linus Walleij <[email protected]> Cc: Mike Frysinger <[email protected]> Cc: Wan ZongShun <[email protected]> Cc: Guan Xuetao <[email protected]> Cc: Mark Brown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-12-20drivers/rtc/rtc-imxdi.c: must include <linux/spinlock.h>Jean Delvare1-0/+1
Add the missing header include for spinlocks, to avoid potential build failures on specific architectures or configurations. Signed-off-by: Jean Delvare <[email protected]> Acked-by: Sascha Hauer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-12-17drivers/rtc/rtc-imxdi.c: add devicetree supportRoland Stigge1-0/+11
Add device tree support to the rtc-imxdi driver. Signed-off-by: Roland Stigge <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Grant Likely <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Russell King <[email protected]> Cc: Shawn Guo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-10-25drivers/rtc/rtc-imxdi.c: add missing spin lock initializationJan Luebbe1-0/+2
Signed-off-by: Jan Luebbe <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Roland Stigge <[email protected]> Cc: Grant Likely <[email protected]> Tested-by: Roland Stigge <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Russell King <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-04-25rtc: imx dryice: Add missing clk_prepareSascha Hauer1-3/+3
prepare the clock before enabling it. Signed-off-by: Sascha Hauer <[email protected]>
2011-09-14drivers/rtc/rtc-imxdi.c needs linux/sched.hAxel Lin1-0/+1
Include linux/sched.h to fix below build error. CC drivers/rtc/rtc-imxdi.o drivers/rtc/rtc-imxdi.c: In function 'di_write_wait': drivers/rtc/rtc-imxdi.c:168: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function) drivers/rtc/rtc-imxdi.c:168: error: (Each undeclared identifier is reported only once drivers/rtc/rtc-imxdi.c:168: error: for each function it appears in.) drivers/rtc/rtc-imxdi.c:168: error: implicit declaration of function 'signal_pending' drivers/rtc/rtc-imxdi.c:168: error: implicit declaration of function 'schedule_timeout' drivers/rtc/rtc-imxdi.c: In function 'dryice_norm_irq': drivers/rtc/rtc-imxdi.c:329: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function) Signed-off-by: Axel Lin <[email protected]> Cc: Baruch Siach <[email protected]> Cc: Wan ZongShun <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-08-11rtc: driver for the DryIce block found in i.MX25 chipsBaruch Siach1-0/+519
This driver is based on code from Freescale which accompanies their i.MX25 PDK board, with some cleanup. Signed-off-by: Baruch Siach <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Sascha Hauer <[email protected]> Acked-by: Wan ZongShun <[email protected]> Cc: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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