From: Pawel Laszczak <pawell@cadence.com>
To: <balbi@kernel.org>, <gregkh@linuxfoundation.org>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<rogerq@ti.com>, <peter.chen@nxp.com>
Cc: <dan.carpenter@oracle.com>, <heikki.krogerus@linux.intel.com>,
<colin.king@canonical.com>, <jpawar@cadence.com>,
<ben.dooks@codethink.co.uk>, <kurahul@cadence.com>,
<sparmar@cadence.com>, Pawel Laszczak <pawell@cadence.com>
Subject: [PATCH v2 2/9] usb: cdns3: drd: removed not needed variables initialization
Date: Mon, 13 Jul 2020 12:05:47 +0200 [thread overview]
Message-ID: <20200713100554.28530-3-pawell@cadence.com> (raw)
In-Reply-To: <20200713100554.28530-1-pawell@cadence.com>
Patch remove some variables initialization from core.c and drd.c
file.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
---
drivers/usb/cdns3/core.c | 4 ++--
drivers/usb/cdns3/drd.c | 19 +++++++++----------
2 files changed, 11 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 1f77fb5aefbf..c498b585eb13 100644
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -86,7 +86,7 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
struct device *dev = cdns->dev;
enum usb_dr_mode best_dr_mode;
enum usb_dr_mode dr_mode;
- int ret = 0;
+ int ret;
dr_mode = usb_get_dr_mode(dev);
cdns->role = USB_ROLE_NONE;
@@ -177,7 +177,7 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
goto err;
}
- return ret;
+ return 0;
err:
cdns3_exit_roles(cdns);
return ret;
diff --git a/drivers/usb/cdns3/drd.c b/drivers/usb/cdns3/drd.c
index 58089841ed52..4939a568d8a2 100644
--- a/drivers/usb/cdns3/drd.c
+++ b/drivers/usb/cdns3/drd.c
@@ -29,7 +29,6 @@
*/
int cdns3_set_mode(struct cdns3 *cdns, enum usb_dr_mode mode)
{
- int ret = 0;
u32 reg;
switch (mode) {
@@ -61,7 +60,7 @@ int cdns3_set_mode(struct cdns3 *cdns, enum usb_dr_mode mode)
return -EINVAL;
}
- return ret;
+ return 0;
}
int cdns3_get_id(struct cdns3 *cdns)
@@ -134,11 +133,11 @@ static void cdns3_otg_enable_irq(struct cdns3 *cdns)
int cdns3_drd_switch_host(struct cdns3 *cdns, int on)
{
int ret, val;
- u32 reg = OTGCMD_OTG_DIS;
/* switch OTG core */
if (on) {
- writel(OTGCMD_HOST_BUS_REQ | reg, &cdns->otg_regs->cmd);
+ writel(OTGCMD_HOST_BUS_REQ | OTGCMD_OTG_DIS,
+ &cdns->otg_regs->cmd);
dev_dbg(cdns->dev, "Waiting till Host mode is turned on\n");
ret = readl_poll_timeout_atomic(&cdns->otg_regs->sts, val,
@@ -212,7 +211,7 @@ int cdns3_drd_switch_gadget(struct cdns3 *cdns, int on)
*/
static int cdns3_init_otg_mode(struct cdns3 *cdns)
{
- int ret = 0;
+ int ret;
cdns3_otg_disable_irq(cdns);
/* clear all interrupts */
@@ -223,7 +222,8 @@ static int cdns3_init_otg_mode(struct cdns3 *cdns)
return ret;
cdns3_otg_enable_irq(cdns);
- return ret;
+
+ return 0;
}
/**
@@ -234,7 +234,7 @@ static int cdns3_init_otg_mode(struct cdns3 *cdns)
*/
int cdns3_drd_update_mode(struct cdns3 *cdns)
{
- int ret = 0;
+ int ret;
switch (cdns->dr_mode) {
case USB_DR_MODE_PERIPHERAL:
@@ -307,8 +307,8 @@ static irqreturn_t cdns3_drd_irq(int irq, void *data)
int cdns3_drd_init(struct cdns3 *cdns)
{
void __iomem *regs;
- int ret = 0;
u32 state;
+ int ret;
regs = devm_ioremap_resource(cdns->dev, &cdns->otg_res);
if (IS_ERR(regs))
@@ -359,7 +359,6 @@ int cdns3_drd_init(struct cdns3 *cdns)
cdns3_drd_thread_irq,
IRQF_SHARED,
dev_name(cdns->dev), cdns);
-
if (ret) {
dev_err(cdns->dev, "couldn't get otg_irq\n");
return ret;
@@ -371,7 +370,7 @@ int cdns3_drd_init(struct cdns3 *cdns)
return -ENODEV;
}
- return ret;
+ return 0;
}
int cdns3_drd_exit(struct cdns3 *cdns)
--
2.17.1
next prev parent reply other threads:[~2020-07-13 10:06 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 10:05 [PATCH v2 0/9] usb: cdns3: Improvements for cdns3 DRD code Pawel Laszczak
2020-07-13 10:05 ` [PATCH v2 1/9] usb: cdns3: core: removed cdns3_get_current_role_driver function Pawel Laszczak
2020-07-13 10:05 ` Pawel Laszczak [this message]
2020-07-22 0:34 ` [PATCH v2 2/9] usb: cdns3: drd: removed not needed variables initialization Peter Chen
2020-07-13 10:05 ` [PATCH v2 3/9] usb: cnds3: drd: deleted != Pawel Laszczak
2020-07-22 0:34 ` Peter Chen
2020-07-13 10:05 ` [PATCH v2 4/9] usb: cdns3: drd: return IRQ_NONE explicitly Pawel Laszczak
2020-07-22 0:35 ` Peter Chen
2020-07-13 10:05 ` [PATCH v2 5/9] usb: cdns3: drd: changed return type from int to bool Pawel Laszczak
2020-07-22 0:35 ` Peter Chen
2020-07-13 10:05 ` [PATCH v2 6/9] usb: cdns3: Added CDNS3_ID_PERIPHERAL and CDNS3_ID_HOST Pawel Laszczak
2020-07-22 0:38 ` Peter Chen
2020-07-13 10:05 ` [PATCH v2 7/9] usb: cdns3: core: removed 'goto not_otg' Pawel Laszczak
2020-07-22 2:41 ` Peter Chen
2020-08-03 4:27 ` Pawel Laszczak
2020-07-13 10:05 ` [PATCH v2 8/9] usb: cdns3: core: removed overwriting some error code Pawel Laszczak
2020-07-13 10:05 ` [PATCH v2 9/9] usb: cdns3: drd: simplify *switch_gadet and *switch_host Pawel Laszczak
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