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It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to to of_property_read_bool().
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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None of the headers are included from outside of the mach-pxa
directory, so move them all in there.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The mach/hardware.h is included in lots of places, and it provides
three different things on pxa:
- the cpu_is_pxa* macros
- an indirect inclusion of mach/addr-map.h
- the __REG() and io_pv2() helper macros
Split it up into separate <linux/soc/pxa/cpu.h> and mach/pxa-regs.h
headers, then change all the files that use mach/hardware.h to
include the exact set of those three headers that they actually
need, allowing for further more targeted cleanup.
linux/soc/pxa/cpu.h can remain permanently exported and is now in
a global location along with similar headers. pxa-regs.h and
addr-map.h are only used in a very small number of drivers now
and can be moved to arch/arm/mach-pxa/ directly when those drivers
are to pass the necessary data as resources.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: linux-leds@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Cc: linux-rtc@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-watchdog@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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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 <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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PXA3xx platforms have 56 interrupts that are stored in two ICMR
registers. The code in pxa_irq_suspend() and pxa_irq_resume() however
does a simple division by 32 which only leads to one register being
saved at suspend and restored at resume time. The NAND interrupt
setting, for instance, is lost.
Fix this by using DIV_ROUND_UP() instead.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
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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 <robh@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Imre Kaloz <kaloz@openwrt.org>
Acked-by: Krzysztof Halasa <khalasa@piap.pl>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Roland Stigge <stigge@antcom.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Simtec Linux Team <linux@simtec.co.uk>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Cc: linux-samsung-soc@vger.kernel.org
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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The irq_domain_ops are not modified by the driver and the irqdomain core
code accepts pointer to a const data.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
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The commit "ARM: pxa: arbitrarily set first interrupt number" changed
the first pxa interrupt to 16.
As a consequence, device-tree builds got broken, because :
- pxa_mask_irq() and pxa_unmask_irq() are using IRQ_BIT()
- IRQ_BIT(x) calculates the interrupts as : x - PXA_IRQ(0)
Before the commit, the first interrupt shift, PXA_IRQ(0) was 0,
therefore IRQ_BIT(x) was x. After the change, it is necessary that the
same shift of 16 is applied between the virtual interrupt number and the
hardware irq number.
This situation comes from the common irq_chip shared between legacy
platform builds and device-tree builds.
Fix the broken interrupts in DT case by adding this shift in the DT case
too.
As a consequence of the IRQ_BIT() is removed alltogether from interrupts
handling, even in the platform data types of platforms :
- a legacy irq domain is used
- the irq_chip handles hardware interrupts
- the virtual to hardware interrupt conversion is fully handled by irq
domain mechanics
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
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The conf and of_id variables are assigned but never used, so they may as
well just be removed.
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Properly register on-chip interrupt using the irqdomain logic. The
number of interrupts is taken from the devicetree node. That includes
the following changes:
- cpu_has_ipr() was converted from an inline function to a static bool
variable, so it can be set using the "marvell,intc-priority" property
inside the device node of the tree.
- IRQ_BASE was converted from a macro to a runtime variable so that it
can be initialized dynamically from the DT init code.
- irq_base() now uses pxa_irq_base and just adds an offset.
Hence, there are now no compile-time fixed values used in case of DT
initialization.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
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Remove most gpio macros and change gpio driver to platform driver.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
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GPIO0 and GPIO1 are linked to unique interrupt line in PXA series,
others are linked to another interrupt line. All GPIO are linked to one
interrupt line in MMP series.
Since gpio driver is shared between PXA series and MMP series, define
GPIO0 and GPIO1 as chained interrupt chip. So we can move out gpio code
from irq.c to gpio-pxa.c.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
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* 'next/fixes' of git://git.linaro.org/people/arnd/arm-soc: (28 commits)
ARM: pxa/cm-x300: properly set bt_reset pin
ARM: mmp: rename SHEEVAD to GPLUGD
ARM: imx: Fix typo 'MACH_MX31_3DS_MXC_NAND_USE_BBT'
ARM: i.MX28: shift frac value in _CLK_SET_RATE
plat-mxc: iomux-v3.h: implicitly enable pull-up/down when that's desired
ARM: mx5: fix clock usage for suspend
ARM: pxa: use correct __iomem annotations
ARM: pxa: sharpsl pm needs SPI
ARM: pxa: centro and treo680 need palm27x
ARM: pxa: make pxafb_smart_*() empty when not enabled
ARM: pxa: select POWER_SUPPLY on raumfeld
ARM: pxa: pxa95x is incompatible with earlier pxa
ARM: pxa: CPU_FREQ_TABLE is needed for CPU_FREQ
ARM: pxa: pxa95x/saarb depends on pxa3xx code
ARM: pxa: allow selecting just one of TREO680/CENTRO
ARM: pxa: export symbols from pxa3xx-ulpi
ARM: pxa: make zylonite_pxa*_init declaration match code
ARM: pxa/z2: fix building error of pxa27x_cpu_suspend() no longer available
ARM: at91: add defconfig for at91sam9g45 family
ARM: at91: remove dependency for Atmel PWM driver selector in Kconfig
...
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This sorts out merge conflicts with the arm/gpio branch that
already got merged into mainline Linux.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (43 commits)
ARM: 7135/1: ep93xx: bring back missing <mach/gpio.h>
ARM: 7104/1: plat-pxa: break out GPIO driver specifics
ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystem
ARM: 7042/3: mach-ep93xx: break out GPIO driver specifics
ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h>
ARM: 7094/1: arm/tegra: Move EN_VDD_1V05_GPIO to board-harmony.h
ARM: 7083/1: rewrite U300 GPIO to use gpiolib
ARM: 7074/1: gpio: davinci: eliminate unused variable warnings
ARM: 7063/1: Orion: gpio: add missing include of linux/types.h
ARM: 7055/1: arm/tegra: mach/gpio.h: include linux/types.h to fix build
ARM: 7054/1: arm/tegra: Delete custom gpio_to_irq, and irq_to_gpio
ARM: 7053/1: gpio/tegra: Implement gpio_chip.to_irq
ARM: 7052/1: gpio/tegra: Remove use of irq_to_gpio
ARM: 7057/1: mach-pnx4008: rename GPIO header
ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h>
ARM: 7050/1: mach-sa1100: delete irq_to_gpio() function
ARM: 7049/1: mach-sa1100: move SA1100 GPIO driver to GPIO subsystem
ARM: 7045/1: mach-lpc32xx: break out GPIO driver specifics
ARM: 7044/1: mach-lpc32xx: move LPC32XX GPIO driver to GPIO subsystem
ARM: 7043/1: mach-ixp2000: rename GPIO header
...
Fix up trivial conflicts in arch/arm/mach-u300/Kconfig manually
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The definition of __exception_irq_entry for
CONFIG_FUNCTION_GRAPH_TRACER=y needs linux/ftrace.h, but this creates a
circular dependency with it's current home in asm/system.h. Create
asm/exception.h and update all current users.
v4: - rebase to rmk/for-next
v3: - remove redundant includes of linux/ftrace.h
v2: - document the usage restricitions of __exception*
Cc: Zoltan Devai <zdevai@gmail.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This tries to clear up the confusion between integers and iomem pointers
in the marvell pxa platform. MMIO addresses are supposed to be __iomem*
values, in order to let the Linux type checking work correctly. This
patch moves the cast to __iomem as far back as possible, to the place
where the MMIO virtual address windows are defined.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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The <mach/gpio.h> file is included from upper directories
and deal with generic GPIO and gpiolib stuff. Break out the
platform and driver specific defines and functions into its own
header file.
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert arch/arm includes of mach/gpio.h and asm/gpio.h to linux/gpio.h
before we start consolidating the individual platform implementations
of the gpio header files.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Thanks Dmitry for providing a fix to the original code.
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Replace sysdev classes and struct sys_device objects used for "core"
power management by the PXA platform code with struct syscore_ops
objects that are simpler.
This reduces the code size and the kernel memory footprint. It also
is necessary for removing sysdevs entirely from the kernel in the
future.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
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Use irq_set_chip_and_handler() instead. Converted with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Reorder
irq_set_chip()
irq_set_chip_data()
irq_set_handler()
to
irq_set_chip()
irq_set_handler()
irq_set_chip_data()
so the next patch can combine irq_set_chip() and irq_set_handler() to
irq_set_chip_and_handler().
Automated conversion with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Convert to the new function names. Automated with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Tested-by: Marek Vasut <marek.vasut@gmail.com>
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Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
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Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
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Define all IRQs in irqs.h. If some IRQs are sharing one IRQ number, define
them together. If some IRQs are sharing same name with different IRQ number,
define different IRQ.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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PXA25x does not have IPR registers, saving and restoring should happen
only for pxa27x and pxa3xx.
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Since interrupt handler is changed to use interrupt priority, we also need
to save and restore these interrupt controller registers in suspend/resume
routine.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Tested-by: Daniel Mack <daniel@caiaq.de>
Tested-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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The remaining registers are separated into:
- <mach/regs-ost.h>
- <mach/regs-rtc.h>
- <mach/regs-intc.h>
and then we can remove pxa-regs.h completely. Instead of #include this
file, let's:
1. include the specific <mach/regs-*.h> with care (if that's absolutely
necessary)
2. define the registers in the driver, make cleanly defined API to expose
the register access to external with sufficient reason
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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This is part of the work making gpio.c generic enough, the changes
include:
1. move IRQ handling of GPIO 0 and 1 outside (and back into irq.c)
2. pxa_init_gpio() accepts a range for muxed GPIO IRQs, and an IRQ
number for the muxed GPIOs
3. __gpio_is_occupied() and __gpio_is_inverted() are made inline,
and are moved into <mach/gpio.h> instead of generic gpio.c
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Allow PXA IRQs to be numbered starting at 16, leaving 0 to 15 for the
ISA IRQs, if needed.
This patch depends on RMK's PXA_HAVE_BOARD_IRQS patch.
Signed-off-by: Marc Zyngier <marc.zyngier@altran.com>
Acked-by: Russel King <linux@arm.linux.org.uk>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Both i2c-pxa.c and irq.c still include pxa2xx-gpio.h although is is not
needed anymore.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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two reasons:
1. GPIO namings and their mode definitions are conceptually not part
of the PXA register definitions
2. this is actually a temporary move in the transition of PXA2xx to
use MFP-alike APIs (as what PXA3xx is now doing), so that legacy
code will still work and new code can be added in step by step
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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To further clean up the GPIO and IRQ structure:
1. pxa_init_irq_gpio() and pxa_init_gpio() combines into a single
function pxa_init_gpio()
2. assignment of set_wake merged into pxa_init_{irq,gpio}() as
an argument
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This makes the code better organized and simplified a bit. The change
will lose a bit of performance when performing IRQ ack/mask/unmask,but
that's not too much after checking the result binary.
This patch also removes the ugly #ifdef CONFIG_PXA27x .. #endif by
carefully not to access those pxa{27x,3xx} specific registers, this
is done by keeping an internal IRQ number variable. The pxa-regs.h
is also modified so registers for IRQ > PXA_IRQ(31) are made public
even if CONFIG_PXA{27x,3xx} isn't defined (for pxa25x's sake)
The incorrect assumption in the original code that internal irq starts
from 0 is also corrected by comparing with PXA_IRQ(0).
"struct sys_device" for the IRQ are reduced into one single device on
pxa{27x,3xx}.
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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by
1. wrapping long lines and making comments tidy
2. using IRQ_TYPE_* instead of migration macros __IRQT_*
3. introduce a pr_debug() for the commented printk(KERN_DEBUG ...)
stuff
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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by:
1. introduce dedicated pxa_{mask,unmask}_low_gpio()
2. remove set_irq_chip(IRQ_GPIO_2_x, ...) which has already been
initialized in pxa_init_irq()
3. introduce dedicated pxa_init_gpio_set_wake()
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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1. As David Brownell suggests, using ffs() is going to make the loop
a bit faster (by avoiding unnecessary shift and iteration)
2. Russell suggested find_{first,next}_bit() being used with the
gedr[] array
Signed-off-by: eric miao <eric.miao@marvell.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This adds gpiolib support for the PXA architecture:
- move all GPIO API functions from generic.c into gpio.c
- convert the gpio_get/set_value macros into inline functions
This makes it easier to hook up GPIOs provided by external chips like
ASICs and CPLDs.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Minor ARM fixup from David Brownell folded into this ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: eric miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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