- 11 May, 2012 16 commits
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Dmitry Torokhov authored
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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Dmitry Torokhov authored
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: -
Jean-François Dagenais authored
Signed-off-by:
Jean-François Dagenais <jeff.dagenais@gmail.com> Acked-by:
Michael Hennerich <michael.hennerich@analog.com> Signed-off-by:
-
Poddar, Sourav authored
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:
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JJ Ding authored
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:
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Dmitry Torokhov authored
Add pattens for input-related headers to MAINTAINERS file. Signed-off-by: -
Dmitry Torokhov authored
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:
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George Pantalos authored
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:
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Paul Parsons authored
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:
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Daniel Kurtz authored
Helps ensure all bytes for a single message together in the system log. Signed-off-by:
Joonyoung Shim <jy0922.shim@samsung.com> Acked-by:
Nick Dyer <nick.dyer@itdev.co.uk> Signed-off-by:
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Daniel Kurtz authored
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:
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Daniel Kurtz authored
Don't allow writing past the length of an object. Signed-off-by:
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Daniel Kurtz authored
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:
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Daniel Kurtz authored
Simple cleanup to use newer PM APIs. Signed-off-by:
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Tai-hwa Liang authored
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:
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Peter Ujfalusi authored
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:
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- 02 May, 2012 7 commits
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Dmitry Torokhov authored
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 authored
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: -
Stephen Warren authored
Commit 1c6c6952 "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:
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Dmitry Torokhov authored
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 7a0a27d2 and 4fa07711. Signed-off-by:
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Dmitry Torokhov authored
Reviewed-by:
Chris Bagwell <chris@cnpbagwell.com> Signed-off-by:
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Dmitry Torokhov authored
Instead of returning 1 (which is not even negative) let's capture and return error codde returned by usb_get_extra_descriptor(). Reviewed-by:
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Dmitry Torokhov authored
This fixes the following warning from sparse warning: Using plain integer as NULL pointer Reviewed-by:
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- 30 Apr, 2012 5 commits
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Ashish Jangam authored
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:
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Shawn Landden authored
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:
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Shawn Landden authored
Signed-off-by:
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Ping Cheng authored
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:
Ping Cheng <pingc@wacom.com> Signed-off-by:
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Ping Cheng authored
From the HID usage table when it is supported. Tested-by:
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- 24 Apr, 2012 3 commits
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Julia Lawall authored
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:
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Roland Stigge authored
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:
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Jesper Juhl authored
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:
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- 22 Apr, 2012 2 commits
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Axel Lin authored
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:
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Dmitry Torokhov authored
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- 21 Apr, 2012 7 commits
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Linus Torvalds authored
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Yong Zhang authored
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-socLinus Torvalds authored
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 ... -
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmcLinus Torvalds authored
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-mediaLinus Torvalds authored
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-2.6Linus Torvalds authored
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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Dmitry Torokhov authored
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:
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