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path: root/drivers/input/keyboard/spear-keyboard.c
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2014-01-06Input: delete non-required instances of include <linux/init.h>Paul Gortmaker
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-08-15Input: keyboard, serio - simplify use of devm_ioremap_resourceJulia Lawall
Remove unneeded error handling on the result of a call to platform_get_resource when the value is passed to devm_ioremap_resource. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression pdev,res,n,e,e1; expression ret != 0; identifier l; @@ - res = platform_get_resource(pdev, IORESOURCE_MEM, n); ... when != res - if (res == NULL) { ... \(goto l;\|return ret;\) } ... when != res + res = platform_get_resource(pdev, IORESOURCE_MEM, n); e = devm_ioremap_resource(e1, res); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-05-08Input: spear-keyboard - remove redundant platform_set_drvdata()Sachin Kamat
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-01-22Input: Convert to devm_ioremap_resource()Thierry Reding
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-27Input: spear-keyboard - add clk_{un}prepare() supportVipul Kumar Samar
clk_{un}prepare is mandatory for platforms using common clock framework. Because for SPEAr we don't do anything in clk_{un}prepare() calls, just call them once in probe/remove. Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devexitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devinitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devexit_pBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-10Input: spear-keyboard - switch to using managed resourcesViresh Kumar
This patch frees spear-keyboard driver from burden of freeing resources :) devm_* derivatives of multiple routines are used while allocating resources, which would be freed automatically by kernel. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-10Input: spear-keyboard - fix for balancing the enable_irq_wakeDeepak Sikri
This patch handles the fix for unbalanced irq for the cases when enable_irq_wake fails, and a warning related to same is displayed on the console. The workaround is handled at the driver level. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-09-19ARM: spear: move platform_data definitionsArnd Bergmann
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the spear include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: spear-devel@list.st.com Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-13Input: spear_keyboard - reconfigure operating frequency on suspendShiraz Hashim
On some platform it may happen that the input clock to keyboard may change during suspend, thus impacting its wakeup capability. There is no means for keyboard driver to know this frequency before hand. Hence introduce a platform data 'suspended_rate' which indicates the frequency during suspend at which keyboard operates. Accordingly reprogram keyboard while going into suspend and restore original configuration at the time of resume. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-13Input: spear_keyboard - fix clock handling during suspend/resumeShiraz Hashim
SPEAr keyboard should normally disable clock during suspend and enable it during resume. For cases where it is expected to act as a wakeup source the clock can remain in the same state i.e. kept enabled if it is being used. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: spear_keyboard - generalize keyboard frequency configurationShiraz Hashim
Current implementation hard coded keyboard frequency configuration assuming input clock as fixed APB (83 MHz). Generalize the configuration using clock framework APIs. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: spear_keyboard - rename bit definitions to reflect registerShiraz Hashim
Rename bit definition macros to reflect keyboard registers clearly thus being more readable. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: spear_keyboard - use correct io accessorsShiraz Hashim
All SPEAr keyboard registers are 32 bit wide and are word aligned. This patch aligns all io access to be word size using relaxed version of readl/writel. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-07Input: spear-keyboard - fix disable device_init_wakeup in removeVipul Kumar Samar
This patch is to disable device wakeup while removing keyboard. Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-05-10Input: spear-keyboard - add device tree bindingsViresh Kumar
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>
2012-05-10Input: matrix-keymap - uninline and prepare for device tree supportDmitry Torokhov
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>
2012-02-28Input: spear-keyboard - provide thaw and poweroff routinesViresh Kumar
Thaw and poweroff routines are missing for spear-keyboard. They are required for: - Error case scenarios during freeze - Using test features, of hibernate. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-02-28Input: spear-keyboard - configure device according to supplied modeRajeev Kumar
Let platform pass mode information to keyboard driver according to which it configures itself. The mode can be - KEYPAD_9x9 0 - KEYPAD_6x6 1 - KEYPAD_2x2 2 Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-11-30Input: keyboard - use macro module_platform_driver()JJ Ding
Commit 940ab88962bc1aff3273a8356d64577a6e386736 introduced a new macro to save some platform_driver boilerplate code. Use it. Signed-off-by: JJ Ding <dgdunix@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-31Input: spear-keyboard - fix inverted condition in interrupt handlerRajeev Kumar
We should return IRQ_NONE from interrupt handler in case keyboard does not report DATA_AVAIL condition. Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-19Input: add support for keyboards on ST SPEAr platformRajeev Kumar
Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@st.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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