diff options
Diffstat (limited to 'drivers/usb/renesas_usbhs/mod.c')
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod.c | 40 |
1 files changed, 29 insertions, 11 deletions
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c index 1b97fb12694..6a030b931a3 100644 --- a/drivers/usb/renesas_usbhs/mod.c +++ b/drivers/usb/renesas_usbhs/mod.c @@ -16,8 +16,8 @@ */ #include <linux/interrupt.h> -#include "./common.h" -#include "./mod.h" +#include "common.h" +#include "mod.h" #define usbhs_priv_to_modinfo(priv) (&priv->mod_info) #define usbhs_mod_info_call(priv, func, param...) \ @@ -151,8 +151,8 @@ int usbhs_mod_probe(struct usbhs_priv *priv) goto mod_init_host_err; /* irq settings */ - ret = request_irq(priv->irq, usbhs_interrupt, - 0, dev_name(dev), priv); + ret = devm_request_irq(dev, priv->irq, usbhs_interrupt, + priv->irqflags, dev_name(dev), priv); if (ret) { dev_err(dev, "irq request err\n"); goto mod_init_gadget_err; @@ -172,7 +172,6 @@ void usbhs_mod_remove(struct usbhs_priv *priv) { usbhs_mod_host_remove(priv); usbhs_mod_gadget_remove(priv); - free_irq(priv->irq, priv); } /* @@ -209,14 +208,18 @@ int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state) return (int)irq_state->intsts0 & CTSQ_MASK; } -static void usbhs_status_get_each_irq(struct usbhs_priv *priv, - struct usbhs_irq_state *state) +static int usbhs_status_get_each_irq(struct usbhs_priv *priv, + struct usbhs_irq_state *state) { struct usbhs_mod *mod = usbhs_mod_get_current(priv); + u16 intenb0, intenb1; state->intsts0 = usbhs_read(priv, INTSTS0); state->intsts1 = usbhs_read(priv, INTSTS1); + intenb0 = usbhs_read(priv, INTENB0); + intenb1 = usbhs_read(priv, INTENB1); + /* mask */ if (mod) { state->brdysts = usbhs_read(priv, BRDYSTS); @@ -226,6 +229,20 @@ static void usbhs_status_get_each_irq(struct usbhs_priv *priv, state->bempsts &= mod->irq_bempsts; state->brdysts &= mod->irq_brdysts; } + + /* + * Check whether the irq enable registers and the irq status are set + * when IRQF_SHARED is set. + */ + if (priv->irqflags & IRQF_SHARED) { + if (!(intenb0 & state->intsts0) && + !(intenb1 & state->intsts1) && + !(state->bempsts) && + !(state->brdysts)) + return -EIO; + } + + return 0; } /* @@ -238,7 +255,8 @@ static irqreturn_t usbhs_interrupt(int irq, void *data) struct usbhs_priv *priv = data; struct usbhs_irq_state irq_state; - usbhs_status_get_each_irq(priv, &irq_state); + if (usbhs_status_get_each_irq(priv, &irq_state) < 0) + return IRQ_NONE; /* * clear interrupt @@ -254,9 +272,9 @@ static irqreturn_t usbhs_interrupt(int irq, void *data) usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC); usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC); - usbhs_write(priv, BRDYSTS, 0); - usbhs_write(priv, NRDYSTS, 0); - usbhs_write(priv, BEMPSTS, 0); + usbhs_write(priv, BRDYSTS, ~irq_state.brdysts); + usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts); + usbhs_write(priv, BEMPSTS, ~irq_state.bempsts); /* * call irq callback functions |