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Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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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>
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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>
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Add pattens for input-related headers to MAINTAINERS file.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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According to the standard count 0 is special - no IO should happen but we
can check error conditions (device gone away, etc), and return 0 if there
are no errors. We used to return -EINVAL instead and we also could return 0
if an event was "stolen" by another thread.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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We should use rcu_dereference_protected() when checking if given client
is the one that grabbed the device. This fixes warnings produced by
sparse.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Commit 1c6c695 "genirq: Reject bogus threaded irq requests" requires
that request_threaded_irq() either be passed an explicit handler, or
that IRQF_ONESHOT be set. Set this flag.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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When copy_to/from_user fails in the middle of transfer we should not
report to the user that read/write partially succeeded but rather
report -EFAULT right away, so that application will know that it got
its buffers all wrong.
If application messed up its buffers we can't trust the data fetched
from userspace and successfully written to the device or if data read
from the device and transferred to userspace ended up where application
expected it to end.
If serio_write() fails we still going to report partial writes if failure
happens in the middle of the transfer.
This is basically a revert of 7a0a27d2ce38aee19a31fee8c12095f586eed393
and 4fa0771138d0b56fe59ab8ab3b1ce9e594484362.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Reviewed-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Instead of returning 1 (which is not even negative) let's capture and return
error codde returned by usb_get_extra_descriptor().
Reviewed-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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This fixes the following warning from sparse
warning: Using plain integer as NULL pointer
Reviewed-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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This driver adds support for DA9052/53 4-wire resistive ADC interfaced
touchscreen controller. DA9052/53 is a multi-function device, therefore
this driver depends on DA9052/53 core.
This patch is functionally tested on Samsung SMDKV6410.
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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as is the case of all other devices supported by usbtouchscreen.c
Also list e2i under the composite configure option (TOUCHSCREEN_USB_COMPOSITE)
Signed-off-by: Shawn Landden <shawnlandden@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Signed-off-by: Shawn Landden <shawnlandden@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Main part of patch is adding support for a new Wacom MT touch
packet and labels these devices using MTSCREEN type.
Other items of interest:
Delete some duplicate code in HID parsing for Y info since
its already done in X path.
In wacom_query_tablet_data(), only invoke the set report
that requests tablets to send Wacom Touch packets for
Finger interfaces. Mostly, this is to make code intent clear.
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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From the HID usage table when it is supported.
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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At the point of this error-handling code, aiptek->urb has been allocated,
and it does not appear to be less necessary to free it here than in the
error-handling code just below.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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During the device tree integration of the various LPC32xx drivers,
we agreed on using non-wildcard "compatible" strings. This change
switches lpc32xx_ts touchscreen driver to use "nxp,lpc3220-tsc".
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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I believe that "trying to access hardware" is more correct English
than "trying access hardware".
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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This patch converts the drivers in drivers/input/* to use module_pci_driver()
macro which makes the code smaller and a bit simpler.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Otherwise cpu_active_mask will not set, which lead to other issue.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Konrad Eisele <konrad@gaisler.com>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: SoC fixes" from Olof Johansson:
* at91, ux500, imx, omap and bcmring:
- at91 fixes for =m driver build issues, irqdomain fixes and config
dependency fixes
- ux500 kconfig dependency fixes and a smp wakeup bugfix
- imx idle bugfix and build fix due to irq domain changes
- omap uart pinmux fixes, softreset regression revert and misc fixes
- bcmring build error regression fix
* ux500 and imx had some small defconfig updates in this branch
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (27 commits)
ARM: bcmring: fix UART declarations
ARM: imx: Fix imx5 idle logic bug
ARM: imx27-dt: Fix build due to removal of irq_domain_add_simple()
ARM: imx_v4_v5_defconfig: Add support for CONFIG_REGULATOR_FIXED_VOLTAGE
ARM: OMAP1: DMTIMER: fix broken timer clock source selection
ARM: OMAP: serial: Fix the ocp smart idlemode handling bug
ARM: OMAP2+: UART: Fix incorrect population of default uart pads
ARM: OMAP: sram: fix BUG in dpll code for !PM case
dmaengine: Kconfig: fix Atmel at_hdmac entry
USB: gadget/at91_udc: add gpio_to_irq() function to vbus interrupt
USB: ohci-at91: change annotations for probe/remove functions
leds-atmel-pwm.c: Make pwmled_probe() __devinit
ARM: at91: fix at91sam9261ek Ethernet dm9000 irq
ARM: at91: fix rm9200ek flash size
ARM: at91: remove empty at91_init_serial function
ARM: at91: fix typo in at91_pmc_base assembly declaration
ARM: at91: Export at91_matrix_base
ARM: at91: Export at91_pmc_base
ARM: at91: Export at91_ramc_base
ARM: at91: Export at91_st_base
...
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git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC fixes from Chris Ball:
- Build fix for omap_hsmmc with OF against 3.4-rc1.
- Fix CONFIG_MMC_UNSAFE_RESUME semantics regression against 3.3, which
broke hotplug card detection when UNSAFE_RESUME is set.
- Fix a race condition in omap_hsmmc with runtime PM.
- Fix two libertas SDIO-powered-resume regressions.
- Small fixes for discard/sanitize, dw_mmc, cd-gpio and esdhc-imx.
* tag 'mmc-fixes-for-3.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: core: Do not pre-claim host in suspend
mmc: dw_mmc: prevent NULL dereference for dma_ops
mmc: unbreak sdhci-esdhc-imx on i.MX25
mmc: cd-gpio: Include header to pickup exported symbol prototypes
mmc: sdhci: refine non-removable card checking for card detection
mmc: dw_mmc: Fix switch from DMA to PIO
mmc: remove MMC bus legacy suspend/resume method
mmc: omap_hsmmc: Get rid of of_have_populated_dt() usage
mmc: omap_hsmmc: build fix for CONFIG_OF=y and CONFIG_MMC_OMAP_HS=m
mmc: fixes for eMMC v4.5 sanitize operation
mmc: fixes for eMMC v4.5 discard operation
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- Fixes a regression at DVB core when switching from DVB-S2 to DVB-S on
Kaffeine (Fedora 16 Bugzilla #812895);
- Fixes a mutex unlock at an error condition at drx-k;
- Fix winbond-cir set mode;
- mt9m032: Fix a compilation breakage with some random Kconfig;
- mt9m032: fix two dead locks;
- xc5000: don't require an special firmware (that won't be provided by
the vendor) just because the xtal frequency is different;
- V4L DocBook: fix some typos at multi-plane formats description.
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] xc5000: support 32MHz & 31.875MHz xtal using the 41.024.5 firmware
[media] V4L: mt9m032: fix compilation breakage
[media] V4L: DocBook: Fix typos in the multi-plane formats description
[media] V4L: mt9m032: fix two dead-locks
[media] rc-core: set mode for winbond-cir
[media] drxk: Does not unlock mutex if sanity check failed in scu_command()
[media] dvb_frontend: Fix a regression when switching back to DVB-S
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Pull MFD fixes from Samuel Ortiz:
"We have 3 build fixes, a OMAP USB host PHY reset fix and the twl6040
conversion to an i2c driver. The latter may not sound like a fix but
the twl6040 MFD driver won't probe without it, triggering an OMAP4
audio regression."
* tag 'mfd-for-linus-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: Fix modular builds of rc5t583 regulator support
mfd: Fix asic3_gpio_to_irq
ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue
mfd: Convert twl6040 to i2c driver, and separate it from twl core
mfd : Fix dbx500 compilation error
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Avoid calling wait_event_interruptible() if client requested non-blocking
read, since it is not guaranteed that another thread will not consume
event after we checked if serio_raw->head != serio_raw->tail.
Also ensure we do not return 0 but keep waiting instead in blocking case,
when another thread steals "our" byte.
Reviewed-by: David Herrmann <dh.herrmann@googlemail.com>
Reviewed-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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settle_time and debounce_period are u8 and thus can not be greater than
TC3589x_MAX_DEBOUNCE_SETTLE which is 255.
There also no need to mask out nibbles form board->krow and board->kcol
as we validate that they are in correct range.
Reported-by: Werner <w.landgraf@ru.ru>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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data->mode is unsigned and can not be less than 0.
Reported-by: Werner <w.landgraf@ru.ru>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
Instead of allocating and managing keymap separately from the keypad
structure stick it at the end as a variable-length array.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
|
SIMPLE_DEV_PM_OPS already defines constant dev_pm_ops.
Also guard PM methods with CONFIG_PM_SLEEP and get rid of some
unneeded #ifdefs.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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This change implements device tree support for the LPC32xx SoC's touchscreen
controller.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
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it's always current->mm
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
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pfm_vm_munmap() is simply vm_munmap() and pfm_remove_smpl_mapping()
always get current as the first argument.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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