On Tue, Oct 29, 2019 at 10:59 PM Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> wrote: > > On Tue, 2019-10-29 at 11:26 -0400, Peter Geis wrote: > > On Mon, Oct 28, 2019 at 10:12 PM Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> wrote: > > > > > > On Mon, 2019-10-28 at 18:22 +0000, Peter Geis wrote: > > > > Add the rockchip innosilicon usb3 phy driver, supporting devices such as the rk3328. > > > > Pulled from: > > > > https://github.com/FireflyTeam/kernel/blob/roc-rk3328-cc/drivers/phy/rockchip/phy-rockchip-inno-usb3.c > > > > > > > > Signed-off-by: Peter Geis <pgwipeout@xxxxxxxxx> > > > > --- > > > > drivers/phy/rockchip/Kconfig | 9 + > > > > drivers/phy/rockchip/Makefile | 1 + > > > > drivers/phy/rockchip/phy-rockchip-inno-usb3.c | 1107 +++++++++++++++++ > > > > 3 files changed, 1117 insertions(+) > > > > create mode 100644 drivers/phy/rockchip/phy-rockchip-inno-usb3.c > > > > > ... > > > > +static int rk3328_u3phy_pipe_power(struct rockchip_u3phy *u3phy, > > > > + struct rockchip_u3phy_port *u3phy_port, > > > > + bool on) > > > > +{ > > > > + unsigned int reg; > > > > + > > > > + if (on) { > > > > + reg = readl(u3phy_port->base + 0x1a8); > > > > + reg &= ~BIT(4); /* ldo power up */ > > > > + writel(reg, u3phy_port->base + 0x1a8); > > > > + > > > > + reg = readl(u3phy_port->base + 0x044); > > > > + reg &= ~BIT(4); /* bg power on */ > > > > + writel(reg, u3phy_port->base + 0x044); > > > > + > > > > + reg = readl(u3phy_port->base + 0x150); > > > > + reg |= BIT(6); /* tx bias enable */ > > > > + writel(reg, u3phy_port->base + 0x150); > > > > + > > > > + reg = readl(u3phy_port->base + 0x080); > > > > + reg &= ~BIT(2); /* tx cm power up */ > > > > + writel(reg, u3phy_port->base + 0x080); > > > > + > > > > + reg = readl(u3phy_port->base + 0x0c0); > > > > + /* tx obs enable and rx cm enable */ > > > > + reg |= (BIT(3) | BIT(4)); > > > > + writel(reg, u3phy_port->base + 0x0c0); > > > > + > > > > + udelay(1); > > > > + } else { > > > > + reg = readl(u3phy_port->base + 0x1a8); > > > > + reg |= BIT(4); /* ldo power down */ > > > > + writel(reg, u3phy_port->base + 0x1a8); > > > > + > > > > + reg = readl(u3phy_port->base + 0x044); > > > > + reg |= BIT(4); /* bg power down */ > > > > + writel(reg, u3phy_port->base + 0x044); > > > > + > > > > + reg = readl(u3phy_port->base + 0x150); > > > > + reg &= ~BIT(6); /* tx bias disable */ > > > > + writel(reg, u3phy_port->base + 0x150); > > > > + > > > > + reg = readl(u3phy_port->base + 0x080); > > > > + reg |= BIT(2); /* tx cm power down */ > > > > + writel(reg, u3phy_port->base + 0x080); > > > > + > > > > + reg = readl(u3phy_port->base + 0x0c0); > > > > + /* tx obs disable and rx cm disable */ > > > > + reg &= ~(BIT(3) | BIT(4)); > > > > + writel(reg, u3phy_port->base + 0x0c0); > > > > + } > > > Try to avoid magic number > > > > Since this was not my driver, I only pulled it in and made the > > necessary changes to get it working, I tried to refrain from > > modifications as much as possible. > > Do you want me to convert these addresses to definitions based on the > > comments in the code? > It's better to follow register names defined in register map doc if you > have Some of these registers appear to be in the rk3328 TRM. Most, such as the tuning registers, are not documented anywhere I can find. :'( Why rockchip, why?! > > > > > > > > > + > > > > + return 0; > > > > +} > > > > + > > > > _______________________________________________ > Linux-rockchip mailing list > Linux-rockchip@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-rockchip
