linux-toradex.git/arch/arm/common/locomo.c, branch v5.14

ARM: 9049/1: locomo: make locomo bus's remove callback return void

2021-02-01T19:44:30+00:00

The driver core ignores the return value of struct bus_type::remove
because there is only little that can be done. To simplify the quest to
make this function return void, let struct locomo_driver::remove return
void, too. All users already unconditionally return 0, this commit makes
it obvious that returning an error code is a bad idea and ensures future
users behave accordingly.

Link: https://lore.kernel.org/r/20201126110140.2021758-1-u.kleine-koenig@pengutronix.de

Acked-by: Dmitry Torokhov 
Acked-by: Lee Jones 
Signed-off-by: Uwe Kleine-König 
Signed-off-by: Russell King

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Kate Stewart 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman

PM: ARM: locomo: Drop suspend and resume bus type callbacks

2017-10-04T22:40:57+00:00

None of the locomo drivers in the tree implements the suspend and
resume callbacks from struct locomo_driver, so drop them and drop
the corresponding callbacks from locomo_bus_type.

Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Ulf Hansson

ARM: locomo: fix locomo irq handling

2016-09-12T11:12:31+00:00

Accidentally booting Collie on Assabet reveals that the locomo driver
incorrectly overwrites gpio-sa1100's chip data for its parent interrupt,
leading to oops in sa1100_gpio_unmask() and sa1100_update_edge_regs()
when "gpio: sa1100: convert to use IO accessors" is applied.  Fix locomo
to use the handler data rather than chip data for its parent interrupt.

Signed-off-by: Russell King

genirq: Remove irq argument from irq flow handlers

2015-09-16T13:47:51+00:00

Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu

Merge branch 'queue/irq/arm' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next/cleanup

2015-08-05T15:24:11+00:00

Merge "ARM: Interrupt cleanups and API change preparation" from Thomas
Gleixner:

The following patch series contains the following changes:

    - Consolidation of chained interrupt handler setup/removal

    - Switch to functions which avoid a redundant interrupt
      descriptor lookup

    - Preparation of interrupt flow handlers for the 'irq' argument
      removal

* 'queue/irq/arm' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ARM/orion/gpio: Prepare gpio_irq_handler for irq argument removal
  ARM/pxa: Prepare balloon3_irq_handler for irq argument removal
  ARM/pxa: Prepare *_irq_handler for irq argument removal
  ARM/dove: Prepare pmu_irq_handler for irq argument removal
  ARM/sa1111: Prepare sa1111_irq_handler for irq argument removal
  ARM/locomo: Prepare locomo_handler for irq argument removal
  ARM, irq: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
  ARM/LPC32xx: Use irq_set_handler_locked()
  ARM/irq: Use access helper irq_data_get_affinity_mask()
  ARM/locomo: Consolidate chained IRQ handler install/remove
  ARM/orion: Consolidate chained IRQ handler install/remove

Signed-off-by: Olof Johansson

ARM: kill off set_irq_flags usage

2015-07-28T11:58:13+00:00

set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:

IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN

For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also modify IRQ_NOPROBE and this has been maintained although it
is not clear that is really needed. There appears to be a great deal of
blind copy and paste of this code.

Signed-off-by: Rob Herring 
Cc: Russell King 
Cc: Sekhar Nori 
Cc: Kevin Hilman 
Cc: Jason Cooper 
Cc: Andrew Lunn 
Cc: Sebastian Hesselbarth 
Cc: Gregory Clement 
Acked-by: Hans Ulli Kroll 
Acked-by: Shawn Guo 
Cc: Sascha Hauer 
Cc: Imre Kaloz 
Acked-by: Krzysztof Halasa 
Cc: Greg Ungerer 
Cc: Roland Stigge 
Cc: Tony Lindgren 
Cc: Daniel Mack 
Cc: Haojian Zhuang 
Cc: Robert Jarzmik 
Cc: Simtec Linux Team 
Cc: Kukjin Kim 
Cc: Krzysztof Kozlowski 
Acked-by: Wan ZongShun 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Cc: linux-samsung-soc@vger.kernel.org
Tested-by: Kevin Hilman 
Signed-off-by: Olof Johansson

ARM/locomo: Prepare locomo_handler for irq argument removal

2015-07-13T12:59:15+00:00

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu 
Cc: Russell King 
Cc: linux-arm-kernel@lists.infradead.org

ARM, irq: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

2015-07-13T12:59:15+00:00

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Signed-off-by: Jiang Liu 
Cc: Russell King 
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Thomas Gleixner

ARM/locomo: Consolidate chained IRQ handler install/remove

2015-07-13T12:59:14+00:00

Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.

Search and conversion was done with coccinelle.

Reported-by: Russell King 
Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Russell King 
Cc: linux-arm-kernel@lists.infradead.org