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phy: rockchip: inno-usb2: add tuning function for rk3568

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We turn off the differential reciver in suspend mode, which can
save about 300uA at AVCC_1V8 in suspend mode.

Signed-off-by: Ren Jianing <jianing.ren@rock-chips.com>
Change-Id: Ic9f2b931d7ee3fc687d8bb3f3e9dfe2d966c6542
This commit is contained in:
Ren Jianing
2020-11-18 20:48:23 +08:00
committed by Tao Huang
parent 5df67251b8
commit 90e983fe31
1 changed files with 13 additions and 0 deletions
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13
drivers/phy/rockchip/phy-rockchip-inno-usb2.c
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@@ -2198,6 +2198,17 @@ static int rk3399_usb2phy_tuning(struct rockchip_usb2phy *rphy)
return ret;
}
static int rk3568_usb2phy_tuning(struct rockchip_usb2phy *rphy)
{
u32 reg;
reg = readl(rphy->phy_base + 0x30);
/* turn off differential reciver in suspend mode */
writel(reg & ~BIT(2), rphy->phy_base + 0x30);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int rockchip_usb2phy_pm_suspend(struct device *dev)
{
@@ -2795,6 +2806,7 @@ static const struct rockchip_usb2phy_cfg rk3568_phy_cfgs[] = {
{
.reg = 0xfe8a0000,
.num_ports = 2,
.phy_tuning = rk3568_usb2phy_tuning,
.clkout_ctl = { 0x0008, 4, 4, 1, 0 },
.port_cfgs = {
[USB2PHY_PORT_OTG] = {
@@ -2845,6 +2857,7 @@ static const struct rockchip_usb2phy_cfg rk3568_phy_cfgs[] = {
{
.reg = 0xfe8b0000,
.num_ports = 2,
.phy_tuning = rk3568_usb2phy_tuning,
.clkout_ctl = { 0x0008, 4, 4, 1, 0 },
.port_cfgs = {
[USB2PHY_PORT_OTG] = {