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phy: phy-bcm-ns-usb3: convert to readl_poll_timeout_atomic() 

Use readl_poll_timeout_atomic() to simplify code

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1598320987-25518-1-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Chunfeng Yun 2020-08-25 10:03:02 +08:00 committed by Vinod Koul
parent 37abc181bb
commit 47da6aa776
1 changed files with 9 additions and 13 deletions
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22
drivers/phy/broadcom/phy-bcm-ns-usb3.c
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@ -13,6 +13,7 @@
#include <linux/bcma/bcma.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/iopoll.h>
#include <linux/mdio.h>
#include <linux/module.h>
#include <linux/of_address.h>
@ -258,29 +259,24 @@ static struct mdio_driver bcm_ns_usb3_mdio_driver = {
**************************************************/
static int bcm_ns_usb3_wait_reg(struct bcm_ns_usb3 *usb3, void __iomem *addr,
u32 mask, u32 value, unsigned long timeout)
u32 mask, u32 value, int usec)
{
unsigned long deadline = jiffies + timeout;
u32 val;
int ret;
do {
val = readl(addr);
if ((val & mask) == value)
return 0;
cpu_relax();
udelay(10);
} while (!time_after_eq(jiffies, deadline));
ret = readl_poll_timeout_atomic(addr, val, ((val & mask) == value),
10, usec);
if (ret)
dev_err(usb3->dev, "Timeout waiting for register %p\n", addr);
dev_err(usb3->dev, "Timeout waiting for register %p\n", addr);
return -EBUSY;
return ret;
}
static inline int bcm_ns_usb3_mii_mng_wait_idle(struct bcm_ns_usb3 *usb3)
{
return bcm_ns_usb3_wait_reg(usb3, usb3->ccb_mii + BCMA_CCB_MII_MNG_CTL,
0x0100, 0x0000,
usecs_to_jiffies(BCM_NS_USB3_MII_MNG_TIMEOUT_US));
BCM_NS_USB3_MII_MNG_TIMEOUT_US);
}
static int bcm_ns_usb3_platform_phy_write(struct bcm_ns_usb3 *usb3, u16 reg,