openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

usb: mtu3: clear interrupts status when disable interrupts 

When disable interrupts, will also want to clear their status,
ensure it by calling mtu3_intr_status_clear() in
mtu3_intr_disable().

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1595834101-13094-4-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2020-07-27 15:14:53 +08:00 committed by Greg Kroah-Hartman
parent f55df11e31
commit b7d5c3cabc
1 changed files with 12 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/usb/mtu3/mtu3_core.c
View File

@ -147,17 +147,6 @@ static void mtu3_device_reset(struct mtu3 *mtu)
mtu3_clrbits(ibase, U3D_SSUSB_DEV_RST_CTRL, SSUSB_DEV_SW_RST);
}
/* disable all interrupts */
static void mtu3_intr_disable(struct mtu3 *mtu)
{
void __iomem *mbase = mtu->mac_base;
/* Disable level 1 interrupts */
mtu3_writel(mbase, U3D_LV1IECR, ~0x0);
/* Disable endpoint interrupts */
mtu3_writel(mbase, U3D_EPIECR, ~0x0);
}
static void mtu3_intr_status_clear(struct mtu3 *mtu)
{
void __iomem *mbase = mtu->mac_base;
@ -170,6 +159,18 @@ static void mtu3_intr_status_clear(struct mtu3 *mtu)
mtu3_writel(mbase, U3D_LTSSM_INTR, ~0x0);
/* Clear speed change interrupt status */
mtu3_writel(mbase, U3D_DEV_LINK_INTR, ~0x0);
/* Clear QMU interrupt status */
mtu3_writel(mbase, U3D_QISAR0, ~0x0);
}
/* disable all interrupts */
static void mtu3_intr_disable(struct mtu3 *mtu)
{
/* Disable level 1 interrupts */
mtu3_writel(mtu->mac_base, U3D_LV1IECR, ~0x0);
/* Disable endpoint interrupts */
mtu3_writel(mtu->mac_base, U3D_EPIECR, ~0x0);
mtu3_intr_status_clear(mtu);
}
/* enable system global interrupt */
@ -312,7 +313,6 @@ void mtu3_stop(struct mtu3 *mtu)
dev_dbg(mtu->dev, "%s\n", __func__);
mtu3_intr_disable(mtu);
mtu3_intr_status_clear(mtu);
if (mtu->softconnect)
mtu3_dev_on_off(mtu, 0);
@ -600,7 +600,6 @@ static void mtu3_regs_init(struct mtu3 *mtu)
/* be sure interrupts are disabled before registration of ISR */
mtu3_intr_disable(mtu);
mtu3_intr_status_clear(mtu);
mtu3_csr_init(mtu);