diff options
| author | Li Jun <b47624@freescale.com> | 2014-04-23 15:56:38 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-24 12:56:34 -0700 |
| commit | 0c33bf781a0da4bdab207ccc323c9afa940852af (patch) | |
| tree | 944dc5e1c996ff80edce93442ec462be3fedfbfa /drivers/usb/chipidea/core.c | |
| parent | d03cccff9c768342d9576dde744ab3acb69d3ad4 (diff) | |
usb: chipidea: operate on otgsc register in a general way
Use a more general way to read and write otgsc register.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/core.c')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 1cd5d0ba587c..f0cfa5b64bf1 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -393,7 +393,7 @@ static irqreturn_t ci_irq(int irq, void *data) u32 otgsc = 0; if (ci->is_otg) - otgsc = hw_read(ci, OP_OTGSC, ~0); + otgsc = hw_read_otgsc(ci, ~0); /* * Handle id change interrupt, it indicates device/host function @@ -401,7 +401,8 @@ static irqreturn_t ci_irq(int irq, void *data) */ if (ci->is_otg && (otgsc & OTGSC_IDIE) && (otgsc & OTGSC_IDIS)) { ci->id_event = true; - ci_clear_otg_interrupt(ci, OTGSC_IDIS); + /* Clear ID change irq status */ + hw_write_otgsc(ci, OTGSC_IDIS, OTGSC_IDIS); disable_irq_nosync(ci->irq); queue_work(ci->wq, &ci->work); return IRQ_HANDLED; @@ -413,7 +414,8 @@ static irqreturn_t ci_irq(int irq, void *data) */ if (ci->is_otg && (otgsc & OTGSC_BSVIE) && (otgsc & OTGSC_BSVIS)) { ci->b_sess_valid_event = true; - ci_clear_otg_interrupt(ci, OTGSC_BSVIS); + /* Clear BSV irq */ + hw_write_otgsc(ci, OTGSC_BSVIS, OTGSC_BSVIS); disable_irq_nosync(ci->irq); queue_work(ci->wq, &ci->work); return IRQ_HANDLED; @@ -535,8 +537,9 @@ static void ci_get_otg_capable(struct ci_hdrc *ci) == (DCCPARAMS_DC | DCCPARAMS_HC)); if (ci->is_otg) { dev_dbg(ci->dev, "It is OTG capable controller\n"); - ci_disable_otg_interrupt(ci, OTGSC_INT_EN_BITS); - ci_clear_otg_interrupt(ci, OTGSC_INT_STATUS_BITS); + /* Disable and clear all OTG irq */ + hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS, + OTGSC_INT_STATUS_BITS); } } @@ -648,7 +651,8 @@ static int ci_hdrc_probe(struct platform_device *pdev) */ mdelay(2); ci->role = ci_otg_role(ci); - ci_enable_otg_interrupt(ci, OTGSC_IDIE); + /* Enable ID change irq */ + hw_write_otgsc(ci, OTGSC_IDIE, OTGSC_IDIE); } else { /* * If the controller is not OTG capable, but support |