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authorChunfeng Yun <chunfeng.yun@mediatek.com>2020-07-27 15:14:53 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-07-29 16:53:58 +0200
commitb7d5c3cabcec4191e22e962867904e661cb9bc84 (patch)
treee11329a73a5673837f9b977a4b7cdfb5502f5ec0 /drivers/usb
parentf55df11e3164e4aab1832bfe5a2f5997ee243f04 (diff)
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>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/mtu3/mtu3_core.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index b4f07af7bb90..4958b04545da 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -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);