diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-08-13 14:45:48 (GMT) |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-08-13 14:45:48 (GMT) |
commit | 19e4ab54e7f5fe46a3c931afa7e786f11d57b558 (patch) | |
tree | aeada0b9d0800b94cb795020a856c625ddc4f41c /arch/arm/mach-clps711x | |
parent | 0d7614f09c1ebdbaa1599a5aba7593f147bf96ee (diff) | |
parent | fa8bbb13ab49e77c00fa09e5504ec25b7176fb4b (diff) | |
download | linux-fsl-qoriq-19e4ab54e7f5fe46a3c931afa7e786f11d57b558.tar.xz |
Merge branch 'for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds into next/drivers
From Bryan Wu <bryan.wu@canonical.com>:
Based on Linus Walleij's ARM LED consolidation work, this patchset introduce a
new generic led trigger for CPU not only for ARM but also for others.
For enabling CPU idle event, CPU arch code should call ledtrig_cpu() stub to
trigger idle start or idle end event.
These patches convert old style LED driver in arch/arm to gpio_led or new led
driver interface. Against 3.5 release and build successfully for all the machines.
Test ledtrig-cpu driver on OMAP4 Panda board.
v9 --> v10
* fix compiling issue on versatile_defconfig reported by Russell King
* rebase to 3.5 kernel and move patches to new git tree
v8 --> v9:
* use mutex to replace rw_sema pointed out by Tim Gardner
* add a new struct led_trigger_cpu
* add lock_is_inited to record mutex lock initialization
v6 --> v7:
* add a patch to unify the led-trigger name
* fix some typo pointed
* use BUG_ON to detect CPU numbers during building stage
v5 --> v6:
* replace __get_cpu_var() to per_cpu()
* remove smp_processor_id() which is wrong with for_each_possible_cpu()
* test on real OMAP4 Panda board
* add comments about CPU hotplug in the CPU LED trigger driver
v4 --> v5:
* rebase all the patches on top of latest linux-next
* replace on_each_cpu() with for_each_possible_cpu()
* add some description of ledtrig_cpu() API
* remove old leds code from driver nwflash.c, which should use a new led trigger then
* this trigger driver can be built as module now
v3 --> v4:
* fix a typo pointed by Jochen Friedrich
* fix some building errors
* add Reviewed-by and Tested-by into patch log
v2 --> v3:
* almost rewrote the whole ledtrig-cpu driver, which is more simple
* every CPU will have a per-CPU trigger
* cpu trigger can be assigned to any leds
* fix a lockdep issue in led-trigger common code
* other fix according to review
v1 --> v2:
* remove select operations in Kconfig of every machines
* add back supporting of led in core module of mach-integrator
* solidate name scheme in ledtrig-cpu.c
* add comments of CPU_LED_* cpu led events
* fold patches of RealView and Versatile together
* add machine_is_ check during assabet led driver init
* add some Acked-by in patch logs
* remove code for simpad machine in machine-sa11000, since Jochen Friedrich
introduced gpiolib and gpio-led driver for simpad
* on Assabet and Netwinder machine, LED operations is reversed like:
setting bit means turn off leds
clearing bit means turn on leds
* add a new function to read CM_CTRL register for led driver
* 'for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
ARM: use new LEDS CPU trigger stub to replace old one
ARM: mach-sa1100: retire custom LED code
ARM: mach-omap1: retire custom LED code
ARM: mach-pnx4008: remove including old leds event API header file
ARM: plat-samsung: remove including old leds event API header file
ARM: mach-pxa: retire custom LED code
char: nwflash: remove old led event code
ARM: mach-footbridge: retire custom LED code
ARM: mach-ebsa110: retire custom LED code
ARM: mach-clps711x: retire custom LED code of P720T machine
ARM: mach-integrator: retire custom LED code
ARM: mach-integrator: move CM_CTRL to header file for accessing by other functions
ARM: mach-orion5x: convert custom LED code to gpio_led and LED CPU trigger
ARM: mach-shark: retire custom LED code
ARM: mach-ks8695: remove leds driver, since nobody use it
ARM: mach-realview and mach-versatile: retire custom LED code
ARM: at91: convert old leds drivers to gpio_led and led_trigger drivers
led-triggers: create a trigger for CPU activity
Conflicts:
arch/arm/mach-clps711x/p720t.c
arch/arm/mach-sa1100/leds-cerf.c
arch/arm/mach-sa1100/leds-lart.c
Let's hope this is the last time we pull this and it doesn't cause
more trouble. I have verified that version 10 causes no build
warnings or errors any more, and the patches still look good.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-clps711x')
-rw-r--r-- | arch/arm/mach-clps711x/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-clps711x/common.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-clps711x/p720t-leds.c | 63 | ||||
-rw-r--r-- | arch/arm/mach-clps711x/p720t.c | 62 |
4 files changed, 62 insertions, 66 deletions
diff --git a/arch/arm/mach-clps711x/Makefile b/arch/arm/mach-clps711x/Makefile index f2f0256..5872b49 100644 --- a/arch/arm/mach-clps711x/Makefile +++ b/arch/arm/mach-clps711x/Makefile @@ -16,5 +16,3 @@ obj-$(CONFIG_ARCH_CLEP7312) += clep7312.o obj-$(CONFIG_ARCH_EDB7211) += edb7211-arch.o edb7211-mm.o obj-$(CONFIG_ARCH_FORTUNET) += fortunet.o obj-$(CONFIG_ARCH_P720T) += p720t.o -leds-$(CONFIG_ARCH_P720T) += p720t-leds.o -obj-$(CONFIG_LEDS) += $(leds-y) diff --git a/arch/arm/mach-clps711x/common.c b/arch/arm/mach-clps711x/common.c index f15293b..3a4af00 100644 --- a/arch/arm/mach-clps711x/common.c +++ b/arch/arm/mach-clps711x/common.c @@ -30,7 +30,6 @@ #include <asm/sizes.h> #include <mach/hardware.h> #include <asm/irq.h> -#include <asm/leds.h> #include <asm/pgtable.h> #include <asm/page.h> #include <asm/mach/map.h> diff --git a/arch/arm/mach-clps711x/p720t-leds.c b/arch/arm/mach-clps711x/p720t-leds.c deleted file mode 100644 index bbc449f..0000000 --- a/arch/arm/mach-clps711x/p720t-leds.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * linux/arch/arm/mach-clps711x/leds.c - * - * Integrator LED control routines - * - * Copyright (C) 2000 Deep Blue Solutions Ltd - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/io.h> - -#include <mach/hardware.h> -#include <asm/leds.h> -#include <asm/mach-types.h> - -static void p720t_leds_event(led_event_t ledevt) -{ - unsigned long flags; - u32 pddr; - - local_irq_save(flags); - switch(ledevt) { - case led_idle_start: - break; - - case led_idle_end: - break; - - case led_timer: - pddr = clps_readb(PDDR); - clps_writeb(pddr ^ 1, PDDR); - break; - - default: - break; - } - - local_irq_restore(flags); -} - -static int __init leds_init(void) -{ - if (machine_is_p720t()) - leds_event = p720t_leds_event; - - return 0; -} - -arch_initcall(leds_init); diff --git a/arch/arm/mach-clps711x/p720t.c b/arch/arm/mach-clps711x/p720t.c index f266d90..b752b58 100644 --- a/arch/arm/mach-clps711x/p720t.c +++ b/arch/arm/mach-clps711x/p720t.c @@ -23,6 +23,8 @@ #include <linux/string.h> #include <linux/mm.h> #include <linux/io.h> +#include <linux/slab.h> +#include <linux/leds.h> #include <mach/hardware.h> #include <asm/pgtable.h> @@ -34,6 +36,8 @@ #include <asm/mach/map.h> #include <mach/syspld.h> +#include <asm/hardware/clps7111.h> + #include "common.h" /* @@ -107,6 +111,64 @@ static void __init p720t_init_early(void) } } +/* + * LED controled by CPLD + */ +#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) +static void p720t_led_set(struct led_classdev *cdev, + enum led_brightness b) +{ + u8 reg = clps_readb(PDDR); + + if (b != LED_OFF) + reg |= 0x1; + else + reg &= ~0x1; + + clps_writeb(reg, PDDR); +} + +static enum led_brightness p720t_led_get(struct led_classdev *cdev) +{ + u8 reg = clps_readb(PDDR); + + return (reg & 0x1) ? LED_FULL : LED_OFF; +} + +static int __init p720t_leds_init(void) +{ + + struct led_classdev *cdev; + int ret; + + if (!machine_is_p720t()) + return -ENODEV; + + cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); + if (!cdev) + return -ENOMEM; + + cdev->name = "p720t:0"; + cdev->brightness_set = p720t_led_set; + cdev->brightness_get = p720t_led_get; + cdev->default_trigger = "heartbeat"; + + ret = led_classdev_register(NULL, cdev); + if (ret < 0) { + kfree(cdev); + return ret; + } + + return 0; +} + +/* + * Since we may have triggers on any subsystem, defer registration + * until after subsystem_init. + */ +fs_initcall(p720t_leds_init); +#endif + MACHINE_START(P720T, "ARM-Prospector720T") /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ .atag_offset = 0x100, |