Hi George,
On 10/15/2013 01:40 PM, George Cherian wrote:
> Laxman/Chanwoo/Kishon,
>
> Any comments on this!!
> Regards
> -George
> On 10/11/2013 12:18 AM, George Cherian wrote:
>> Always cross check with the ID state and the source of interrupt.
>> Also add a case in which ID Source is ID_GND but LATCH state is set
>> wrongly. This uses the previous Link stat to determine the new state.
>>
>> Signed-off-by: George Cherian <george.cherian@xxxxxx>
>> ---
>> drivers/extcon/extcon-palmas.c | 15 ++++++++++++---
>> 1 file changed, 12 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
>> index 6e83e9a..2aea4bc 100644
>> --- a/drivers/extcon/extcon-palmas.c
>> +++ b/drivers/extcon/extcon-palmas.c
>> @@ -78,20 +78,24 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
>> static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
>> {
>> - unsigned int set;
>> + unsigned int set, id_src;
>> struct palmas_usb *palmas_usb = _palmas_usb;
>> palmas_read(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
>> PALMAS_USB_ID_INT_LATCH_SET, &set);
>> + palmas_read(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
>> + PALMAS_USB_ID_INT_SRC, &id_src);
>> - if (set & PALMAS_USB_ID_INT_SRC_ID_GND) {
>> + if ((set & PALMAS_USB_ID_INT_SRC_ID_GND) &&
>> + (id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
>> palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
>> PALMAS_USB_ID_INT_LATCH_CLR,
>> PALMAS_USB_ID_INT_EN_HI_CLR_ID_GND);
>> palmas_usb->linkstat = PALMAS_USB_STATE_ID;
>> extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", true);
>> dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
>> - } else if (set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) {
>> + } else if ((set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) &&
>> + (id_src & PALMAS_USB_ID_INT_SRC_ID_FLOAT)) {
>> palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
>> PALMAS_USB_ID_INT_LATCH_CLR,
>> PALMAS_USB_ID_INT_EN_HI_CLR_ID_FLOAT);
>> @@ -103,6 +107,11 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
>> palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
>> extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", false);
>> dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
>> + } else if ((palmas_usb->linkstat == PALMAS_USB_STATE_DISCONNECT) &&
>> + (id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
>> + palmas_usb->linkstat = PALMAS_USB_STATE_ID;
>> + extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", true);
>> + dev_info(palmas_usb->dev, " USB-HOST cable is attached\n");
>> }
>> return IRQ_HANDLED;
>
>
Applied it on next branch.
Thanks.
Chanwoo Choi
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
