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path: root/drivers/input/keyboard/omap4-keypad.c (follow)
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* Input: omap4-keypad - fix pm_runtime_get_sync() error checkingMiaoqian Lin2022-04-171-1/+1
| | | | | | | | | | | If the device is already in a runtime PM enabled state pm_runtime_get_sync() will return 1, so a test for negative value should be used to check for errors. Fixes: f77621cc640a ("Input: omap-keypad - dynamically handle register offsets") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220412070131.19848-1-linmq006@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - implement errata check for lost key-up eventsTony Lindgren2021-01-111-0/+30
| | | | | | | | | | | | | | | | | | | | | | | We are still missing handling for errata i689 related issues for the case where we never see a key up interrupt for the last pressed key. To fix the issue, we must scan the key state again after the keyboard controller has idled to check if a key up event was missed. This is described in the omap4 silicon errata documentation for Errata ID i689 "1.32 Keyboard Key Up Event Can Be Missed": "When a key is released for a time shorter than the debounce time, in-between 2 key press (KP1 and KP2), the keyboard state machine will go to idle mode and will never detect the key release (after KP1, and also after KP2), and thus will never generate a new IRQ indicating the key release." We can use PM runtime autosuspend features to check the keyboard state after it enters idle. Signed-off-by: Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/X/vrygoBxzGyXhfc@atomide.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - use PM runtime autosuspendTony Lindgren2021-01-111-11/+39
| | | | | | | | | | | | | Implement PM runtime autosuspend support to prepare for adding handling to clear stuck last pressed key in the following patches. The hardware has support for autoidle and can wake up to keypress events. Let's also update omap4_keypad_probe() to use dev instead of &pdev->dev since we already have it from the earlier changes. Signed-off-by: Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/X/vqCs5/EDURprAJ@atomide.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - move rest of key scanning to a separate functionTony Lindgren2021-01-111-13/+26
| | | | | | | | | | Let's move rest of the key scanning code to omap4_keypad_scan_keys(). We will use omap4_keypad_scan_keys() also for implementing errata handling to clear the stuck last key in the following patch. Signed-off-by: Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/20210110190529.46135-4-tony@atomide.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - scan keys in two phases and simplify with bitmaskTony Lindgren2021-01-111-28/+45
| | | | | | | | | | | | | | | | | | | | Because of errata i689 the keyboard can idle with state where no key up interrupts are seen until after the next key press. This means we need to first check for any lost key up events before scanning for new down events. For example, rapidly pressing shift-shift-j can sometimes produce a J instead of j. Let's fix the issue by scanning the keyboard in two phases. First we scan for any key up events that we may have missed, and then we scan for key down events. Let's also simplify things with for_each_set_bit() as suggested by Dmitry Torokhov <dmitry.torokhov@gmail.com>. Signed-off-by: Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/20210110190529.46135-3-tony@atomide.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - disable unused long interruptsTony Lindgren2021-01-111-3/+2
| | | | | | | | | | | | We are not using the long events and they produce extra interrupts. Let's not enable them at all. Note that also the v3.0.8 Linux Android kernel has long interrupts disabled. Signed-off-by: Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/20210110190529.46135-2-tony@atomide.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - switch to use managed resourcesDmitry Torokhov2021-01-111-84/+53
| | | | | | | | | Now that input core supports devres-managed input devices we can clean up this driver a bit. Link: https://lore.kernel.org/r/X/qfJKiM21uyksYl@google.com Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - set up interrupt as wakeup sourceDmitry Torokhov2020-12-031-35/+8
| | | | | | | | Marking main interrupt as wakeup interrupt in probe allows us to drop custom suspend/resume methods whose only purpose was to configure interrupt for waking up the system. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - fix runtime PM error handlingZhang Qilong2020-11-231-36/+53
| | | | | | | | | | | | | | | | | | | | | | | | | In omap4_keypad_probe, the patch fix several bugs. 1) pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to pm_runtime_put_noidle will result in reference leak. 2) In err_unmap, forget to disable runtime of device, pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed on the error handling path to keep it balanced. 3) In err_pm_disable, it will call pm_runtime_put_sync twice not one time. To fix this we factor out code reading revision and disabling touchpad, and drop PM reference once we are done talking to the device. Fixes: f77621cc640a7 ("Input: omap-keypad - dynamically handle register offsets") Fixes: 5ad567ffbaf20 ("Input: omap4-keypad - wire up runtime PM handling") Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20201120133918.2559681-1-zhangqilong3@huawei.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - fix handling of platform_get_irq() errorKrzysztof Kozlowski2020-09-161-4/+2
| | | | | | | | | | platform_get_irq() returns -ERRNO on error. In such case comparison to 0 would pass the check. Fixes: f3a1ba60dbdb ("Input: omap4-keypad - use platform device helpers") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200828145744.3636-2-krzk@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas Gleixner2019-05-301-14/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 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 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2018-12-211-12/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "Switching a few devices with Synaptics over to SMbus and disabling SMbus on a couple devices with Elan touchpads as they need more plumbing on PS/2 side" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: synaptics - enable SMBus for HP EliteBook 840 G4 Input: elantech - disable elan-i2c for P52 and P72 Input: synaptics - enable RMI on ThinkPad T560 Input: omap-keypad - fix idle configuration to not block SoC idle states
| * Input: omap-keypad - fix idle configuration to not block SoC idle statesTony Lindgren2018-12-091-12/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With PM enabled, I noticed that pressing a key on the droid4 keyboard will block deeper idle states for the SoC. Let's fix this by using IRQF_ONESHOT and stop constantly toggling the device OMAP4_KBD_IRQENABLE register as suggested by Dmitry Torokhov <dmitry.torokhov@gmail.com>. From the hardware point of view, looks like we need to manage the registers for OMAP4_KBD_IRQENABLE and OMAP4_KBD_WAKEUPENABLE together to avoid blocking deeper SoC idle states. And with toggling of OMAP4_KBD_IRQENABLE register now gone with IRQF_ONESHOT, also the SoC idle state problem is gone during runtime. We still also need to clear OMAP4_KBD_WAKEUPENABLE in omap4_keypad_close() though to pair it with omap4_keypad_open() to prevent blocking deeper SoC idle states after rmmod omap4-keypad. Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2018-12-041-4/+14
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Mostly new IDs for Elan/Synaptics touchpads, plus a few small fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: omap-keypad - fix keyboard debounce configuration Input: xpad - quirk all PDP Xbox One gamepads Input: synaptics - enable SMBus for HP 15-ay000 Input: synaptics - add PNP ID for ThinkPad P50 to SMBus Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR Input: elan_i2c - add support for ELAN0621 touchpad Input: hyper-v - fix wakeup from suspend-to-idle Input: atkbd - clean up indentation issue Input: st1232 - convert to SPDX identifiers Input: migor_ts - convert to SPDX identifiers Input: dt-bindings - fix a typo in file input-reset.txt Input: cros_ec_keyb - fix button/switch capability reports Input: elan_i2c - add ELAN0620 to the ACPI table Input: matrix_keypad - check for errors from of_get_named_gpio()
| * Input: omap-keypad - fix keyboard debounce configurationTony Lindgren2018-12-031-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I noticed that the Android v3.0.8 kernel on droid4 is using different keypad values from the mainline kernel and does not have issues with keys occasionally being stuck until pressed again. Turns out there was an earlier patch posted to fix this as "Input: omap-keypad: errata i689: Correct debounce time", but it was never reposted to fix use macros for timing calculations. This updated version is using macros, and also fixes the use of the input clock rate to use 32768KiHz instead of 32000KiHz. And we want to use the known good Android kernel values of 3 and 6 instead of 2 and 6 in the earlier patch. Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | treewide: kzalloc() -> kcalloc()Kees Cook2018-06-131-1/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
* Input: omap-keypad - fix error handling codeChristophe JAILLET2017-04-111-1/+1
| | | | | | | | According to the previous error handling code, it is likely that 'goto err_free_keymap' is expected here in order to avoid a memory leak in error handling path. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: matrix-keypad - switch to using generic device propertiesDmitry Torokhov2017-01-311-2/+2
| | | | | | | | | | | Instead of being OF-specific, let's switch to using generic device properties, which will make this code usable on ACPI, device tree and legacy boards that use property sets. As part of the change let's rename matrix_keypad_parse_of_params() to matrix_keypad_parse_properties(). Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: keyboard - drop unnecessary calls to device_init_wakeupGuenter Roeck2017-01-221-3/+0
| | | | | | | | | | | | Calling device_init_wakeup in the remove function is unnecessary since the device is going away, and thus won't be able to cause any wakeups under any circumstances. Besides, the driver cleanup code already handles the necessary cleanup. Similarly, disabling wakeup in the probe error path is unnecessary, as is disabling wakeup in the probe function in the first place. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap4-keypad - fix memory leakSudip Mukherjee2015-09-291-1/+1
| | | | | | | If omap4_keypad_parse_dt() fails we returned the error code but we missed releasing keypad_data. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* input: keyboard: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
| | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* Input: omap-keypad - remove platform data supportJoachim Eastwood2014-05-291-26/+6
| | | | | | | This is unused since all users (OMAP4/5) are DT only. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: delete non-required instances of include <linux/init.h>Paul Gortmaker2014-01-071-1/+0
| | | | | | | | | | 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>
* Input: omap-keypad - set up irq type from DTIllia Smyrnov2013-08-261-2/+1
| | | | | | | | | OMAP4 is DT only, so read the keypad IRQ type from DT instead hard-coding it in the driver. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - enable wakeup capability for keypad.Illia Smyrnov2013-08-261-0/+39
| | | | | | | | Enable/disable IRQ wake in suspend/resume handlers to make the keypad wakeup capable. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - clear interrupts on openIllia Smyrnov2013-08-261-1/+2
| | | | | | | | | | | | According to TRM, the recommended way for keyboard controller initialization is clear the interrupt-status register, then set up certain keyboard events for generating an interrupt request and set up expected source of wake-up event that generates a wake-up request. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - convert to threaded IRQIllia Smyrnov2013-08-261-9/+20
| | | | | | | | Convert to use threaded IRQ. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - use bitfiled instead of hardcoded valuesIllia Smyrnov2013-08-261-14/+11
| | | | | | | | | Use bitfiled instead of hardcoded values to set KBD_CTRL, use BIT macro, remove unused defines. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Merge branch 'for-next' of git://github.com/rydberg/linux into nextDmitry Torokhov2013-06-281-11/+5
|\ | | | | | | Pull in changes from Henrik: "a trivial MT documentation fix".
| * input: matrix-keymap: Add function to read the new DT bindingSimon Glass2013-04-051-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We now have a binding which adds two parameters to the matrix keypad DT node. This is separate from the GPIO-driven matrix keypad binding, and unfortunately incompatible, since that uses row-gpios/col-gpios for the row and column counts. So the easiest option here is to provide a function for non-GPIO drivers to use to decode the binding. Note: We could in fact create an entirely separate structure to hold these two fields, but it does not seem worth it, yet. If we have more parameters then we can add this, and then refactor each driver to hold such a structure. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Tested-by: Sourav Poddar <sourav.poddar@ti.com> (v2) Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | Input: omap4-keypad - remove redundant platform_set_drvdata()Sachin Kamat2013-05-081-2/+0
|/ | | | | | | | | 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>
* Input: remove use of __devexitBill Pemberton2012-11-241-1/+1
| | | | | | | | | 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>
* Input: remove use of __devinitBill Pemberton2012-11-241-3/+3
| | | | | | | | | | 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>
* Input: remove use of __devexit_pBill Pemberton2012-11-241-1/+1
| | | | | | | | | 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>
* Input: omap4-keypad - add device tree supportSourav Poddar2012-07-181-40/+87
| | | | | | | | | | Add device tree support for omap4 keypad driver and update the Documentation with omap4 keypad device tree binding information. Tested on omap4430 sdp. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: matrix-keymap - uninline and prepare for device tree supportDmitry Torokhov2012-05-111-8/+7
| | | | | | | | 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>
* Input: omap-keypad - dynamically handle register offsetsPoddar, Sourav2012-05-111-26/+92
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Input: omap4-keypad - move platform_data to <linux/platform_data>Felipe Balbi2012-03-171-1/+1
| | | | | | | | | This patch allows us to drop the OMAP dependency from the OMAP4 keypad driver. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: keyboard - use macro module_platform_driver()JJ Ding2011-12-011-12/+1
| | | | | | | | 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>
* Input: omap4-keypad - wire up runtime PM handlingAbraham Arce2011-02-241-19/+55
| | | | | | | | | | | | | | | Enable Runtime PM functionality in OMAP4 driver based on the following assumptions: - keyboard controller in wakeup domain so it is always on and power impact is minimal; - in OMAP4 the device control is at module/device level and ick/fclk level control is difficult so cutting of clocks will prevent interrupts. Signed-off-by: Abraham Arce <x0066660@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: omap4-keypad - wake-up on events & long pressesMike Turquette2010-10-131-0/+4
| | | | | | | | | | | | Program keyboard controller to generate a wake-up request on events and on long key presses. It will not generate wake-up requests on timeouts since driver code does not handle them. This allows keyboard to wake-up OMAP from suspend. Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Abraham Arce <x0066660@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: omap4-keypad - fix interrupt line configurationAbraham Arce2010-10-131-1/+1
| | | | | | | Select correct interrupt line behaviour. Signed-off-by: Abraham Arce <x0066660@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: omap4-keypad - SYSCONFIG register configurationAbraham Arce2010-10-131-8/+5
| | | | | | | | | | | | | Remove SYSCONFIG register configuration, omap hwmod framework will use internal API to modify as required. Other minor updates: - Change a variable name from DEF to VAL, this represents a value - Break line width to 80 characters Signed-off-by: Abraham Arce <x0066660@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: omap4-keypad - use platform device helpersAbraham Arce2010-10-131-5/+35
| | | | | | | | | | Get mem and irq resources using platform helpers - platform_get_base - platform_get_irq Signed-off-by: Abraham Arce <x0066660@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: add support for OMAP4 keyboard controllerAbraham Arce2010-09-011-0/+287
OMAP4 keyboard controller includes: - built-in scanning algorithm - debouncing feature Driver implementation is based on matrix_keypad.c Signed-off-by: Syed Rafiuddin <rafiuddin.syed@ti.com> Signed-off-by: Abraham Arce <x0066660@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 14:50:18 +0100