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Alter the db8500_add_msp_i2s() calls to return a struct
platform_device * pointer, not an integer. We nee the pointer
to obtain a pinctrl handle.
Cc: Ola Lilja <ola.o.lilja@stericsson.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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UART0 had a hack that enabled its pins on init and put it to
sleep on the exit callback. Replace this with the pinctrl calls
to do the same thing and update the runtime table with the two
apropriate states for runtime/active and idle.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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At the beginning of the first patch series I included the custom
ux500 pin control system to make sure I could eventually replace
it with the standard subsystem driver. So now that we've done so,
let's remove it.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This converts the Ux500 family to use the pinctrl driver for
configuring pins.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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There is an IDLE definition in the pinctrl framework, but for
ux500 SLEEP is more apropriate.
I've added some comments on the semantics of the common states
so as to avoid misunderstandings.
ChangeLog v1->v2:
- Fixed terminology "on"->"into".
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This implements the pin configuration interface for the
Nomadik pin controller.
As part of the exercise we add a bit in the pin_cfg_t for
the Nomadik pinctrl driver that indicates if the pin should
be forced into GPIO mode. This is not done to go behind the
back of the GPIO subsystem, but to ensure that default modes
can be set by hogs on boot and system suspend/resume states.
It was used implicitly by the old code defining all config
settings and modes in a single config word but we now have
a split between pinmux and pinconf leading to the need to
have this.
We also add a bit for explicitly setting sleepmode of the
pin. This was previously handled by custom calls with the
_sleep() suffix, but we now have one single interface into
the configuration so we replace this with a bit indicating
that the pin shall be configured into sleep mode.
Some of the configuration can be refactored later to use
less custom fields on the pin_cfg_t but we are currently
leaving the old function calls in place so we stay
compatible.
ChangeLog v1->v2:
- Drop a hunk changing pinmuxing for GPIO and move it
over to the preceding pinmux patch.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Implements basic pinmux for the Nomadik pin controller.
The plan is to split the existing singular pin config interface
nmk_config_pin(), nmk_config_pins(), that will configure muxing
and other settings at the same time, into two interfaces
by splitting the code in pinmux and pinctrl and eventually
deleting the old interface and its helper functions when all
users are gone.
nmk_gpio_set_mode() and nmk_gpio_get_mode() are two older
interfaces for just configuring muxing/altfunctions that
will also be replaced in the end.
We take some extra care to handle the glitch-avoidance here,
but it is simpler now since there is only one altsetting per
pingroup so we know immediately if we need to avoid altfunc
C glitches for a certain group.
As part of the makeover implement the .request() and .free()
calls on the GPIO chips and have them call back into the
pinctrl layer to reserve GPIOs.
ChangeLog v1->v2:
- Rebased on pinctrl-mergebase-20120418 so we get the latest
driver infrastructure where function count is done by a fixed
value and we can drop a few range checks since this is now
handled by the core.
- Include a GPIO muxing hunk erroneously part of the pin config
patch.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Since all pins we can control are GPIOs, match a GPIO range to
each pin in the debug function and call into the GPIO debug
print function to have the per-pin information.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Break out the code displaying the status of a single pin so we
can use the same code in the pinctrl debug function.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This adds a scratch pin control interface to the Nomadik pinctrl
driver, and defines the pins and groups in the DB8500 ASIC. We
define GPIO ranges to cover the pins exposed. The DB8500 has
more pins than this but we restrict the driver to the pins that
can be controlled from the combined GPIO and pin control hardware
to begin with.
ChangeLog v1->v2:
- Base on the latest pinctrl development from
pinctrl-mergebase-20120418 so we can get rid of legacy
group count mechanism. Also drop the range checks for group
index, this is handled by the core now.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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a60b57e "drivers/gpio: gpio-nomadik: Add support for irqdomains" broke
building with CONFIG_OF_GPIO disabled.
Without this patch, building nhk8815_defconfig results in:
/home/arnd/linux-arm/drivers/gpio/gpio-nomadik.c: In function 'nmk_gpio_probe':
/home/arnd/linux-arm/drivers/gpio/gpio-nomadik.c:1238:6: error: 'struct gpio_chip' has no member named 'of_node'
make[3]: *** [drivers/gpio/gpio-nomadik.o] Error 1
make[2]: *** [drivers/gpio] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [drivers] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [sub-make] Error 2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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I'm moving this driver over to the pinctrl subsystem to convert
the custom pin mux/config scheme over to use pinctrl.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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The B.A.T.M.A.N. IV OGM receive function still was hard-coded although
it is a routing protocol specific function. This patch takes advantage
of the dynamic packet handler registration to remove the hard-coded
function calls.
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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The packet handler array replaces the growing switch statement, thus
dealing with incoming packets in a more efficient way. It also adds
to possibility to register packet handlers on the fly.
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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In is_type_dhcprequest(), while parsing a DHCP message, if the entry we found in
the option list is neither a padding nor the dhcp-type, we have to ignore it and
jump as many bytes as its length + 1. The "+ 1" byte is given by the subtype
field itself that has to be jumped too.
Reported-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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Conflicts:
drivers/pinctrl/core.c
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Cc: linux-serial@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
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Cc: linux-mmc@vger.kernel.org
Cc: Chris Ball <cjb@laptop.org>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
Clean up for omap DSS board init in preparation for adding DT support.
By Tomi Valkeinen
via Tomi Valkeinen (1) and Tony Lindgren (1)
* tag 'omap-cleanup-dss-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
OMAPDSS: DSI: implement generic DSI pin config
OMAPDSS: Taal: move reset gpio handling to taal driver
OMAPDSS: TFP410: rename dvi files to tfp410
OMAPDSS: TFP410: rename dvi -> tfp410
OMAP: board-files: remove custom PD GPIO handling for DVI output
OMAPDSS: panel-dvi: add PD gpio handling
Resolved context conflicts in arch/arm/mach-omap2/board-omap4panda.c.
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Minor DT updates based on the dt-missed-3.4 branch
By Benoit Cousson (3) and Peter Ujfalusi (2)
via Tony Lindgren
* tag 'omap-dt-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
arm/dts: omap4-panda: Add LEDs support
arm/dts: omap4-sdp: Add LEDs support
arm/dts: twl4030: Add twl4030-gpio node
OMAP4: devices: Do not create mcpdm device if the dtb has been provided
OMAP4: devices: Do not create dmic device if the dtb has been provided
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm
Data changes related to omap hwmod
By Paul Walmsley (4) and others
via Paul Walmsley (1) and Tony Lindgren (1)
* tag 'omap-devel-hwmod-data-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset
ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database
ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports
ARM: OMAP4: hwmod data: I2C: add flag for context restore
ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports
ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data
ARM: OMAP2+: HDQ1W: add custom reset function
ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/boards
Board specific changes for omap.
Note that these are based on omap-pm-regulator-for-v3.5 as
both branches are adding twl regulators.
By Paul Gortmaker (8) and others
via Linus Torvalds (38) and others
* tag 'omap-board-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
OMAP: omap4panda: Use common configuration for V1V8, V2V1 supplies
OMAP: 4430SDP: Use common configuration for V1V8, V2V1 supplies
OMAP4: twl-common: Add twl6030 V1V8, V2V1 SMPS common configuration
ARM: OMAP: Mark Beagleboard-xM MMC bus as 4-bit
Add MSUB support for the LogicPD OMAP3530 DevKits
ARM: OMAP: rx51: Platform support for lis3lv02d accelerometer
ARM: OMAP2+: craneboard: register emac device
ARM: OMAP4: board-omap4panda: Register platform device for HDMI audio codec
ARM: OMAP4: board-4430sdp: Register platform device for HDMI audio codec
ARM: OMAP: devices: Register platform devices for HDMI audio
ARM: OMAP3: igep0020: Add support for Micron NAND Flash storage memory
ARM: OMAP2+: nand: Make board_onenand_init() visible to board code
ARM: OMAP3: cm-t35: add support for power off
ARM: OMAP: WiLink platform data for the PandaBoard
ARM: OMAP2PLUS: Enable HIGHMEM
ARM: OMAP: omap2plus_defconfig: Enable ehci-omap and sms95xx support
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm
Updates for PRCM (Power, Reset, Clock Management).
Note that this depends on omap-devel-hwmod-for-v3.5.
By Kevin Hilman (3) and others
via Paul Walmsley (2) and Tony Lindgren (1)
* tag 'omap-devel-prcm-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[]
ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API
ARM: OMAP3: clock data: add clockdomain for HDQ functional clock
ARM: OMAP3+: dpll: Configure autoidle mode only if it's supported
ARM: OMAP2+: dmtimer: cleanup iclk usage
ARM: OMAP4+: Add prm and cm base init function.
ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common header
ARM: OMAP3: Fix CM register bit masks
ARM: OMAP: clock: convert AM3517/3505 detection/flags to AM35xx
ARM: OMAP3: clock data: treat all AM35x devices the same
ARM: OMAP3: clock data: replace 3503/3517 flag with AM35x flag for UART4
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes
Omap fixes that were considered too intrusive or not critical for the -rc cycle
By Artem Bityutskiy (1) and others
via Tony Lindgren
* tag 'omap-fixes-non-critical-for-v3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: igep0020: Specify the VPLL2 regulator unconditionally
ARM: OMAP2+: INTC: fix Kconfig option for TI81XX
ARM: OMAP2+: remove incorrect irq_chip ack field
ARM: OMAP4: Adding ID for OMAP4460 ES1.1
ARM: OMAP4: panda: add statics to remove warnings
ARM: OMAP2+: Incorrect Register Offsets in OMAP Mailbox
ARM: OMAP: fix trivial warnings for dspbridge
ARM: OMAP4: hsmmc: check for null pointer
ARM: OMAP1: fix compilation issue in board-sx1.c
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git://github.com/RyanMallon/linux-ep93xx into next/cleanup
By H Hartley Sweeten (2) and Ryan Mallon (1)
via Ryan Mallon
* tag 'ep93xx-cleanup-for-3.5' of git://github.com/RyanMallon/linux-ep93xx:
arm: ep93xx: use gpio_led_register_device
Fix build breakage in ep93xx-core
arm: ep93xx: use DEFINE_RES_* macros
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Fixes and improvements for perf/core:
- perf_target: abstraction for --uid, --pid, --tid, --cpu, --all-cpus handling,
eliminating code duplicated in the tools, having constraints that apply to
all of them, from Namhyung Kim
- Fixes for handling fallback to cpu-clock on PPC, from David Ahern
- Fix for processing events with unknown size, from Jiri Olsa
- Compilation fix on 32-bit, from Jiri Olsa
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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the cookie updates completed the cyclic dma descriptor wrongly. This caused the
BUG_ON to be hit as submit is called for completed descriptor
Fix this by not marking the cyclic descriptor as complete
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
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This adds simple DT bindings for spear-keyboard controller.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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When platform keymap is not supplied to matrix_keypad_build_keymap()
and device tree support is enabled, try locating specified property
and load keymap from it. If property name is not defined, try using
"linux,keymap".
Based on earlier patch by Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Change matrix-keymap helper to be out-of-line, like sparse keymap,
allow the helper perform basic keymap validation and return errors,
and prepare for device tree support.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Signed-off-by: Jean-François Dagenais <jeff.dagenais@gmail.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Hi Dmitry,
On Wed, May 9, 2012 at 3:14 PM, Poddar, Sourav <sourav.poddar@ti.com> wrote:
> Hi Dmitry,
>
> I did some minor fixes to the patch which you suggested above and
> the keypad is functional now.
>
> Changes:
> - Move "pm_runtime_enable" before using "pm_runtime_get_sync".
>
> Sending the patch inlined..(also attached).
>
> From: G, Manjunath Kondaiah <manjugk@ti.com>
> Date: Mon, 10 Oct 2011 20:52:05 +0530
> Subject: [PATCH] Input: omap-keypad: dynamically handle register offsets
>
> Keypad controller register offsets are different for omap4
> and omap5. Handle these offsets through static mapping and
> assign these mappings during run time.
>
> Tested on omap4430 sdp with 3.4-rc3.
> Tested on omap5430evm with 3.1-custom kernel.
>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Felipe Balbi <balbi@ti.com>
> Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
> ---
> drivers/input/keyboard/Kconfig | 4 +-
> drivers/input/keyboard/omap4-keypad.c | 120 +++++++++++++++++++++++++-------
> 2 files changed, 95 insertions(+), 29 deletions(-)
>
> diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
> index f354813..33bbdee 100644
> --- a/drivers/input/keyboard/Kconfig
> +++ b/drivers/input/keyboard/Kconfig
> @@ -512,9 +512,9 @@ config KEYBOARD_OMAP
> module will be called omap-keypad.
>
> config KEYBOARD_OMAP4
> - tristate "TI OMAP4 keypad support"
> + tristate "TI OMAP4+ keypad support"
> help
> - Say Y here if you want to use the OMAP4 keypad.
> + Say Y here if you want to use the OMAP4+ keypad.
>
> To compile this driver as a module, choose M here: the
> module will be called omap4-keypad.
> diff --git a/drivers/input/keyboard/omap4-keypad.c
> b/drivers/input/keyboard/omap4-keypad.c
> index e809ac0..d7102e8 100644
> --- a/drivers/input/keyboard/omap4-keypad.c
> +++ b/drivers/input/keyboard/omap4-keypad.c
> @@ -68,19 +68,52 @@
>
> #define OMAP4_MASK_IRQSTATUSDISABLE 0xFFFF
>
> +enum {
> + KBD_REVISION_OMAP4 = 0,
> + KBD_REVISION_OMAP5,
> +};
> +
> struct omap4_keypad {
> struct input_dev *input;
>
> void __iomem *base;
> - int irq;
> + unsigned int irq;
>
> unsigned int rows;
> unsigned int cols;
> + u32 reg_offset;
> + u32 irqreg_offset;
> unsigned int row_shift;
> unsigned char key_state[8];
> unsigned short keymap[];
> };
>
> +static int kbd_readl(struct omap4_keypad *keypad_data, u32 offset)
> +{
> + return __raw_readl(keypad_data->base +
> + keypad_data->reg_offset + offset);
> +}
> +
> +static void kbd_writel(struct omap4_keypad *keypad_data, u32 offset, u32 value)
> +{
> + __raw_writel(value,
> + keypad_data->base + keypad_data->reg_offset + offset);
> +}
> +
> +static int kbd_read_irqreg(struct omap4_keypad *keypad_data, u32 offset)
> +{
> + return __raw_readl(keypad_data->base +
> + keypad_data->irqreg_offset + offset);
> +}
> +
> +static void kbd_write_irqreg(struct omap4_keypad *keypad_data,
> + u32 offset, u32 value)
> +{
> + __raw_writel(value,
> + keypad_data->base + keypad_data->irqreg_offset + offset);
> +}
> +
> +
> /* Interrupt handler */
> static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
> {
> @@ -91,12 +124,11 @@ static irqreturn_t omap4_keypad_interrupt(int
> irq, void *dev_id)
> u32 *new_state = (u32 *) key_state;
>
> /* Disable interrupts */
> - __raw_writel(OMAP4_VAL_IRQDISABLE,
> - keypad_data->base + OMAP4_KBD_IRQENABLE);
> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
> + OMAP4_VAL_IRQDISABLE);
>
> - *new_state = __raw_readl(keypad_data->base + OMAP4_KBD_FULLCODE31_0);
> - *(new_state + 1) = __raw_readl(keypad_data->base
> - + OMAP4_KBD_FULLCODE63_32);
> + *new_state = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
> + *(new_state + 1) = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
>
> for (row = 0; row < keypad_data->rows; row++) {
> changed = key_state[row] ^ keypad_data->key_state[row];
> @@ -121,12 +153,13 @@ static irqreturn_t omap4_keypad_interrupt(int
> irq, void *dev_id)
> sizeof(keypad_data->key_state));
>
> /* clear pending interrupts */
> - __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
> - keypad_data->base + OMAP4_KBD_IRQSTATUS);
> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
> + kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
>
> /* enable interrupts */
> - __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
> - keypad_data->base + OMAP4_KBD_IRQENABLE);
> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
> + OMAP4_DEF_IRQENABLE_EVENTEN |
> + OMAP4_DEF_IRQENABLE_LONGKEY);
>
> return IRQ_HANDLED;
> }
> @@ -139,16 +172,17 @@ static int omap4_keypad_open(struct input_dev *input)
>
> disable_irq(keypad_data->irq);
>
> - __raw_writel(OMAP4_VAL_FUNCTIONALCFG,
> - keypad_data->base + OMAP4_KBD_CTRL);
> - __raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
> - keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
> - __raw_writel(OMAP4_VAL_IRQDISABLE,
> - keypad_data->base + OMAP4_KBD_IRQSTATUS);
> - __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
> - keypad_data->base + OMAP4_KBD_IRQENABLE);
> - __raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
> - keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
> + kbd_writel(keypad_data, OMAP4_KBD_CTRL,
> + OMAP4_VAL_FUNCTIONALCFG);
> + kbd_writel(keypad_data, OMAP4_KBD_DEBOUNCINGTIME,
> + OMAP4_VAL_DEBOUNCINGTIME);
> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
> + OMAP4_VAL_IRQDISABLE);
> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
> + OMAP4_DEF_IRQENABLE_EVENTEN |
> + OMAP4_DEF_IRQENABLE_LONGKEY);
> + kbd_writel(keypad_data, OMAP4_KBD_WAKEUPENABLE,
> + OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA);
>
> enable_irq(keypad_data->irq);
>
> @@ -162,12 +196,12 @@ static void omap4_keypad_close(struct input_dev *input)
> disable_irq(keypad_data->irq);
>
> /* Disable interrupts */
> - __raw_writel(OMAP4_VAL_IRQDISABLE,
> - keypad_data->base + OMAP4_KBD_IRQENABLE);
> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
> + OMAP4_VAL_IRQDISABLE);
>
> /* clear pending interrupts */
> - __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
> - keypad_data->base + OMAP4_KBD_IRQSTATUS);
> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
> + kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
>
> enable_irq(keypad_data->irq);
>
> @@ -182,6 +216,7 @@ static int __devinit omap4_keypad_probe(struct
> platform_device *pdev)
> struct resource *res;
> resource_size_t size;
> unsigned int row_shift, max_keys;
> + int rev;
> int irq;
> int error;
>
> @@ -241,11 +276,40 @@ static int __devinit omap4_keypad_probe(struct
> platform_device *pdev)
> keypad_data->rows = pdata->rows;
> keypad_data->cols = pdata->cols;
>
> + /*
> + * Enable clocks for the keypad module so that we can read
> + * revision register.
> + */
> + pm_runtime_enable(&pdev->dev);
> + error = pm_runtime_get_sync(&pdev->dev);
> + if (error) {
> + dev_err(&pdev->dev, "pm_runtime_get_sync() failed\n");
> + goto err_unmap;
> + }
> + rev = __raw_readl(keypad_data->base + OMAP4_KBD_REVISION);
> + rev &= 0x03 << 30;
> + rev >>= 30;
> + switch (rev) {
> + case KBD_REVISION_OMAP4:
> + keypad_data->reg_offset = 0x00;
> + keypad_data->irqreg_offset = 0x00;
> + break;
> + case KBD_REVISION_OMAP5:
> + keypad_data->reg_offset = 0x10;
> + keypad_data->irqreg_offset = 0x0c;
> + break;
> + default:
> + dev_err(&pdev->dev,
> + "Keypad reports unsupported revision %d", rev);
> + error = -EINVAL;
> + goto err_pm_put_sync;
> + }
> +
> /* input device allocation */
> keypad_data->input = input_dev = input_allocate_device();
> if (!input_dev) {
> error = -ENOMEM;
> - goto err_unmap;
> + goto err_pm_put_sync;
> }
>
> input_dev->name = pdev->name;
> @@ -273,14 +337,14 @@ static int __devinit omap4_keypad_probe(struct
> platform_device *pdev)
> input_dev->keycode, input_dev->keybit);
>
> error = request_irq(keypad_data->irq, omap4_keypad_interrupt,
> - IRQF_TRIGGER_RISING,
> + IRQF_DISABLED | IRQF_TRIGGER_RISING,
Sorry, " IRQF_DISABLED" got included by mistake.
Removing this stray change and sending it again.
> "omap4-keypad", keypad_data);
> if (error) {
> dev_err(&pdev->dev, "failed to register interrupt\n");
> goto err_free_input;
> }
>
> - pm_runtime_enable(&pdev->dev);
> + pm_runtime_put_sync(&pdev->dev);
>
> error = input_register_device(keypad_data->input);
> if (error < 0) {
> @@ -296,6 +360,8 @@ err_pm_disable:
> free_irq(keypad_data->irq, keypad_data);
> err_free_input:
> input_free_device(input_dev);
> +err_pm_put_sync:
> + pm_runtime_put_sync(&pdev->dev);
> err_unmap:
> iounmap(keypad_data->base);
> err_release_mem:
>
>
> ~Sourav
>
> On Wed, May 9, 2012 at 1:15 PM, Dmitry Torokhov
> <dmitry.torokhov@gmail.com> wrote:
>>> Hi Dmitry ,
>>>
>>>
>>> On Wed, May 9, 2012 at 10:48 AM, Dmitry Torokhov
>>> <dmitry.torokhov@gmail.com> wrote:
>>> > Ho Sourav,
>>> >
>>> > On Thu, Apr 26, 2012 at 11:24:37AM +0530, Sourav Poddar wrote:
>>> >>
>>> >> -config KEYBOARD_OMAP4
>>> >> - tristate "TI OMAP4 keypad support"
>>> >> +config KEYBOARD_OMAP4+
>>> >
>>> > I think this works purely by accident - '+' sign getting dropped by
>>> > parser...
>>> >
>>> >> @@ -139,16 +192,33 @@ static int omap4_keypad_open(struct input_dev *input)
>>> >>
>>> >> disable_irq(keypad_data->irq);
>>> >>
>>> >> - __raw_writel(OMAP4_VAL_FUNCTIONALCFG,
>>> >> - keypad_data->base + OMAP4_KBD_CTRL);
>>> >> - __raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
>>> >> - keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
>>> >> - __raw_writel(OMAP4_VAL_IRQDISABLE,
>>> >> - keypad_data->base + OMAP4_KBD_IRQSTATUS);
>>> >> - __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
>>> >> - keypad_data->base + OMAP4_KBD_IRQENABLE);
>>> >> - __raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
>>> >> - keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
>>> >> + keypad_data->revision = kbd_read_revision(keypad_data,
>>> >> + OMAP4_KBD_REVISION);
>>> >> + switch (keypad_data->revision) {
>>> >> + case 1:
>>> >> + keypad_data->irqstatus = OMAP4_KBD_IRQSTATUS + 0x0c;
>>> >> + keypad_data->irqenable = OMAP4_KBD_IRQENABLE + 0x0c;
>>> >> + keypad_data->reg_offset = 0x10;
>>> >> + break;
>>> >
>>> > This should be done in probe().
>>> >
>>> Dont we then require "pm_runtime_put_sync" in probe, since we are trying
>>> to read the keypad revision register.?
>>
>> Ah, indeed, but I think not pm_runtime_get_sync() but
>> pm_runtime_set_active().
>>
>> Not sure if this will fix the crash...
>>
>> --
>> Dmitry
>>
>>
>> Input: omap-keypad - dynamically handle register offsets
>>
>> From: G, Manjunath Kondaiah <manjugk@ti.com>
>>
>> Keypad controller register offsets are different for omap4
>> and omap5. Handle these offsets through static mapping and
>> assign these mappings during run time.
>>
>> Tested on omap4430 sdp with 3.4-rc3.
>> Tested on omap5430evm with 3.1-custom kernel.
>>
>> Signed-off-by: Felipe Balbi <balbi@ti.com>
>> Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
>> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
>> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
>> ---
>>
>> drivers/input/keyboard/Kconfig | 4 +
>> drivers/input/keyboard/omap4-keypad.c | 117 ++++++++++++++++++++++++++-------
>> 2 files changed, 94 insertions(+), 27 deletions(-)
>>
>>
>> diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
>> index 20a3753..84ee155 100644
>> --- a/drivers/input/keyboard/Kconfig
>> +++ b/drivers/input/keyboard/Kconfig
>> @@ -531,9 +531,9 @@ config KEYBOARD_OMAP
>> module will be called omap-keypad.
>>
>> config KEYBOARD_OMAP4
>> - tristate "TI OMAP4 keypad support"
>> + tristate "TI OMAP4+ keypad support"
>> help
>> - Say Y here if you want to use the OMAP4 keypad.
>> + Say Y here if you want to use the OMAP4+ keypad.
>>
>> To compile this driver as a module, choose M here: the
>> module will be called omap4-keypad.
>> diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
>> index e809ac0..c9fd0df 100644
>> --- a/drivers/input/keyboard/omap4-keypad.c
>> +++ b/drivers/input/keyboard/omap4-keypad.c
>> @@ -68,19 +68,52 @@
>>
>> #define OMAP4_MASK_IRQSTATUSDISABLE 0xFFFF
>>
>> +enum {
>> + KBD_REVISION_OMAP4 = 0,
>> + KBD_REVISION_OMAP5,
>> +};
>> +
>> struct omap4_keypad {
>> struct input_dev *input;
>>
>> void __iomem *base;
>> - int irq;
>> + unsigned int irq;
>>
>> unsigned int rows;
>> unsigned int cols;
>> + u32 reg_offset;
>> + u32 irqreg_offset;
>> unsigned int row_shift;
>> unsigned char key_state[8];
>> unsigned short keymap[];
>> };
>>
>> +static int kbd_readl(struct omap4_keypad *keypad_data, u32 offset)
>> +{
>> + return __raw_readl(keypad_data->base +
>> + keypad_data->reg_offset + offset);
>> +}
>> +
>> +static void kbd_writel(struct omap4_keypad *keypad_data, u32 offset, u32 value)
>> +{
>> + __raw_writel(value,
>> + keypad_data->base + keypad_data->reg_offset + offset);
>> +}
>> +
>> +static int kbd_read_irqreg(struct omap4_keypad *keypad_data, u32 offset)
>> +{
>> + return __raw_readl(keypad_data->base +
>> + keypad_data->irqreg_offset + offset);
>> +}
>> +
>> +static void kbd_write_irqreg(struct omap4_keypad *keypad_data,
>> + u32 offset, u32 value)
>> +{
>> + __raw_writel(value,
>> + keypad_data->base + keypad_data->irqreg_offset + offset);
>> +}
>> +
>> +
>> /* Interrupt handler */
>> static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
>> {
>> @@ -91,12 +124,11 @@ static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
>> u32 *new_state = (u32 *) key_state;
>>
>> /* Disable interrupts */
>> - __raw_writel(OMAP4_VAL_IRQDISABLE,
>> - keypad_data->base + OMAP4_KBD_IRQENABLE);
>> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
>> + OMAP4_VAL_IRQDISABLE);
>>
>> - *new_state = __raw_readl(keypad_data->base + OMAP4_KBD_FULLCODE31_0);
>> - *(new_state + 1) = __raw_readl(keypad_data->base
>> - + OMAP4_KBD_FULLCODE63_32);
>> + *new_state = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE31_0);
>> + *(new_state + 1) = kbd_readl(keypad_data, OMAP4_KBD_FULLCODE63_32);
>>
>> for (row = 0; row < keypad_data->rows; row++) {
>> changed = key_state[row] ^ keypad_data->key_state[row];
>> @@ -121,12 +153,13 @@ static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
>> sizeof(keypad_data->key_state));
>>
>> /* clear pending interrupts */
>> - __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
>> - keypad_data->base + OMAP4_KBD_IRQSTATUS);
>> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
>> + kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
>>
>> /* enable interrupts */
>> - __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
>> - keypad_data->base + OMAP4_KBD_IRQENABLE);
>> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
>> + OMAP4_DEF_IRQENABLE_EVENTEN |
>> + OMAP4_DEF_IRQENABLE_LONGKEY);
>>
>> return IRQ_HANDLED;
>> }
>> @@ -139,16 +172,17 @@ static int omap4_keypad_open(struct input_dev *input)
>>
>> disable_irq(keypad_data->irq);
>>
>> - __raw_writel(OMAP4_VAL_FUNCTIONALCFG,
>> - keypad_data->base + OMAP4_KBD_CTRL);
>> - __raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
>> - keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
>> - __raw_writel(OMAP4_VAL_IRQDISABLE,
>> - keypad_data->base + OMAP4_KBD_IRQSTATUS);
>> - __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
>> - keypad_data->base + OMAP4_KBD_IRQENABLE);
>> - __raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
>> - keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
>> + kbd_writel(keypad_data, OMAP4_KBD_CTRL,
>> + OMAP4_VAL_FUNCTIONALCFG);
>> + kbd_writel(keypad_data, OMAP4_KBD_DEBOUNCINGTIME,
>> + OMAP4_VAL_DEBOUNCINGTIME);
>> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
>> + OMAP4_VAL_IRQDISABLE);
>> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
>> + OMAP4_DEF_IRQENABLE_EVENTEN |
>> + OMAP4_DEF_IRQENABLE_LONGKEY);
>> + kbd_writel(keypad_data, OMAP4_KBD_WAKEUPENABLE,
>> + OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA);
>>
>> enable_irq(keypad_data->irq);
>>
>> @@ -162,12 +196,12 @@ static void omap4_keypad_close(struct input_dev *input)
>> disable_irq(keypad_data->irq);
>>
>> /* Disable interrupts */
>> - __raw_writel(OMAP4_VAL_IRQDISABLE,
>> - keypad_data->base + OMAP4_KBD_IRQENABLE);
>> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
>> + OMAP4_VAL_IRQDISABLE);
>>
>> /* clear pending interrupts */
>> - __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
>> - keypad_data->base + OMAP4_KBD_IRQSTATUS);
>> + kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
>> + kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
>>
>> enable_irq(keypad_data->irq);
>>
>> @@ -182,6 +216,7 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
>> struct resource *res;
>> resource_size_t size;
>> unsigned int row_shift, max_keys;
>> + int rev;
>> int irq;
>> int error;
>>
>> @@ -241,11 +276,40 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
>> keypad_data->rows = pdata->rows;
>> keypad_data->cols = pdata->cols;
>>
>> + /*
>> + * Mark device as active (and wake up its parent) so we can read
>> + * revision register.
>> + */
>> + error = pm_runtime_set_active(&pdev->dev);
>> + if (error) {
>> + dev_err(&pdev->dev, "pm_runtime_set_active() failed\n");
>> + goto err_unmap;
>> + }
>> +
>> + rev = __raw_readl(keypad_data->base + OMAP4_KBD_REVISION);
>> + rev &= 0x03 << 30;
>> + rev >>= 30;
>> + switch (rev) {
>> + case KBD_REVISION_OMAP4:
>> + keypad_data->reg_offset = 0x00;
>> + keypad_data->irqreg_offset = 0x00;
>> + break;
>> + case KBD_REVISION_OMAP5:
>> + keypad_data->reg_offset = 0x10;
>> + keypad_data->irqreg_offset = 0x0c;
>> + break;
>> + default:
>> + dev_err(&pdev->dev,
>> + "Keypad reports unsupported revision %d", rev);
>> + error = -EINVAL;
>> + goto err_pm_suspended;
>> + }
>> +
>> /* input device allocation */
>> keypad_data->input = input_dev = input_allocate_device();
>> if (!input_dev) {
>> error = -ENOMEM;
>> - goto err_unmap;
>> + goto err_pm_suspended;
>> }
>>
>> input_dev->name = pdev->name;
>> @@ -281,6 +345,7 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
>> }
>>
>> pm_runtime_enable(&pdev->dev);
>> + pm_runtime_put_sync(&pdev->dev);
>>
>> error = input_register_device(keypad_data->input);
>> if (error < 0) {
>> @@ -296,6 +361,8 @@ err_pm_disable:
>> free_irq(keypad_data->irq, keypad_data);
>> err_free_input:
>> input_free_device(input_dev);
>> +err_pm_suspended:
>> + pm_runtime_set_suspended(&pdev->dev);
>> err_unmap:
>> iounmap(keypad_data->base);
>> err_release_mem:
From: G, Manjunath Kondaiah <manjugk@ti.com>
Date: Mon, 10 Oct 2011 20:52:05 +0530
Subject: [PATCH] Input: omap-keypad: dynamically handle register offsets
Keypad controller register offsets are different for omap4
and omap5. Handle these offsets through static mapping and
assign these mappings during run time.
Tested on omap4430 sdp with 3.4-rc3.
Tested on omap5430evm with 3.1-custom kernel.
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Move synaptics_invert_y() inside CONFIG_MOUSE_PS2_SYNAPTICS to get rid of
a compile warning when we don't select synaptics support.
drivers/input/mouse/synaptics.c:53:12: warning: ‘synaptics_invert_y’ defined but not used [-Wunused-function]
Signed-off-by: JJ Ding <dgdunix@gmail.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Add pattens for input-related headers to MAINTAINERS file.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Instead of open-coded reporting number of fingers on the touchpad
let's use input_mt_report_finger_count() helper.
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
This patch adds semi-MT support for ALPS v4 protocol touchpads.
It is based on the work by Seth Forshee for ALPS v3 and v4 protocol
support. Three packets are required to assemble and process the MT
data. ST events are reported at once to avoid latency. If there
were two contacts or more, report MT data instead of ST events.
Thanks to Seth Forshee for providing most of the code, guidance
and insight for producing this patch.
Signed-off-by: George Pantalos <gpantalos@gmail.com>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
This driver adds support for the Synaptics NavPoint touchpad connected
to a PXA27x SSP port in SPI slave mode. The device emulates a mouse;
a tap or tap-and-a-half drag gesture emulates the left mouse button.
For example, use the xf86-input-evdev driver for an X pointing device.
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Tested-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Helps ensure all bytes for a single message together in the system log.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
atmel_mxt devices will send a checksum byte at the end of a message if
the MSB of the object address is set.
However, since this driver does not set this bit, the checksum byte
isn't actually sent, so don't even try to read it.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Don't allow writing past the length of an object.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Restrict permissions on the update_fw sysfs entry to read only for root
only.
Also, update object permission to use a macro S_IRUGO macro instead of
hard coded 0444.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Simple cleanup to use newer PM APIs.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Hardware since Cx supports an unique identity (used to identify OEM vendors
and released lot number) which is very helpful for diagnostic purpose.
This revision tries to make it as a part of driver boot up message.
Whilst here, also bumping fsp_drv_ver to acknowledge recent addition of
absolute coordinates output.
Signed-off-by: Tai-hwa Liang <avatar@sentelic.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
According to the RFC4944 (Transmission of IPv6 Packets over
IEEE 802.15.4 Networks), chapter 7:
The IPv6 link-local address [RFC4291] for an IEEE 802.15.4 interface
is formed by appending the Interface Identifier, as defined above, to
the prefix FE80::/64.
10 bits 54 bits 64 bits
+----------+-----------------------+----------------------------+
|1111111010| (zeros) | Interface Identifier |
+----------+-----------------------+----------------------------+
This patch adds IPv6 address generation support for the 6lowpan
interfaces.
Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Enable DT based probing of the vibra driver.
Example of dts section to load the twl6040-vibra driver:
twl6040: twl6040@4b {
...
twl6040_vibra: twl6040@1 {
compatible = "ti,twl6040-vibra";
interrupts = <4>;
vddvibl-supply = <&vbat>;
vddvibr-supply = <&vbat>;
vibldrv_res = <8>;
vibrdrv_res = <3>;
viblmotor_res = <10>;
vibrmotor_res = <10>;
};
};
[Sasha Levin <levinsasha928@gmail.com>: fixed build error]
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
An implementation of CoDel AQM, from Kathleen Nichols and Van Jacobson.
http://queue.acm.org/detail.cfm?id=2209336
This AQM main input is no longer queue size in bytes or packets, but the
delay packets stay in (FIFO) queue.
As we don't have infinite memory, we still can drop packets in enqueue()
in case of massive load, but mean of CoDel is to drop packets in
dequeue(), using a control law based on two simple parameters :
target : target sojourn time (default 5ms)
interval : width of moving time window (default 100ms)
Based on initial work from Dave Taht.
Refactored to help future codel inclusion as a plugin for other linux
qdisc (FQ_CODEL, ...), like RED.
include/net/codel.h contains codel algorithm as close as possible than
Kathleen reference.
net/sched/sch_codel.c contains the linux qdisc specific glue.
Separate structures permit a memory efficient implementation of fq_codel
(to be sent as a separate work) : Each flow has its own struct
codel_vars.
timestamps are taken at enqueue() time with 1024 ns precision, allowing
a range of 2199 seconds in queue, and 100Gb links support. iproute2 uses
usec as base unit.
Selected packets are dropped, unless ECN is enabled and packets can get
ECN mark instead.
Tested from 2Mb to 10Gb speeds with no particular problems, on ixgbe and
tg3 drivers (BQL enabled).
Usage: tc qdisc ... codel [ limit PACKETS ] [ target TIME ]
[ interval TIME ] [ ecn ]
qdisc codel 10: parent 1:1 limit 2000p target 3.0ms interval 60.0ms ecn
Sent 13347099587 bytes 8815805 pkt (dropped 0, overlimits 0 requeues 0)
rate 202365Kbit 16708pps backlog 113550b 75p requeues 0
count 116 lastcount 98 ldelay 4.3ms dropping drop_next 816us
maxpacket 1514 ecn_mark 84399 drop_overlimit 0
CoDel must be seen as a base module, and should be used keeping in mind
there is still a FIFO queue. So a typical setup will probably need a
hierarchy of several qdiscs and packet classifiers to be able to meet
whatever constraints a user might have.
One possible example would be to use fq_codel, which combines Fair
Queueing and CoDel, in replacement of sfq / sfq_red.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Dave Taht <dave.taht@bufferbloat.net>
Cc: Kathleen Nichols <nichols@pollere.com>
Cc: Van Jacobson <van@pollere.net>
Cc: Tom Herbert <therbert@google.com>
Cc: Matt Mathis <mattmathis@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Class bytes/packets stats can be misleading because they are updated in
enqueue() while packet might be dropped later.
We already fixed all qdiscs but sch_atm.
This patch makes the final cleanup.
class rate estimators can now match qdisc ones.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
