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Date: Fri, 13 Sep 2019 11:37:46 +0530 From: Nagarjuna Kristam <nkristam@...dia.com> To: <balbi@...nel.org>, <gregkh@...uxfoundation.org>, <thierry.reding@...il.com>, <jonathanh@...dia.com>, <mark.rutland@....com>, <robh+dt@...nel.org>, <kishon@...com> CC: <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>, <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Nagarjuna Kristam <nkristam@...dia.com> Subject: [Patch V9 1/8] phy: tegra: xusb: Add XUSB dual mode support on Tegra210 Configure the port capabilities based on usb_dr_mode settings. Based on work by JC Kuo <jckuo@...dia.com>. Signed-off-by: Nagarjuna Kristam <nkristam@...dia.com> Reviewed-by: JC Kuo <jckuo@...dia.com> Acked-by: Thierry Reding <treding@...dia.com> --- drivers/phy/tegra/xusb-tegra210.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/phy/tegra/xusb-tegra210.c b/drivers/phy/tegra/xusb-tegra210.c index 0c0df68..0351c4a 100644 --- a/drivers/phy/tegra/xusb-tegra210.c +++ b/drivers/phy/tegra/xusb-tegra210.c @@ -39,7 +39,10 @@ #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_XUSB 0x1 #define XUSB_PADCTL_USB2_PORT_CAP 0x008 +#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_DISABLED(x) (0x0 << ((x) * 4)) #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(x) (0x1 << ((x) * 4)) +#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_DEVICE(x) (0x2 << ((x) * 4)) +#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_OTG(x) (0x3 << ((x) * 4)) #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_MASK(x) (0x3 << ((x) * 4)) #define XUSB_PADCTL_SS_PORT_MAP 0x014 @@ -64,6 +67,7 @@ #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(x) (0x084 + (x) * 0x40) #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT 7 #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_MASK 0x3 +#define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_VAL 0x1 #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18 (1 << 6) #define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x088 + (x) * 0x40) @@ -957,7 +961,14 @@ static int tegra210_usb2_phy_power_on(struct phy *phy) value = padctl_readl(padctl, XUSB_PADCTL_USB2_PORT_CAP); value &= ~XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_MASK(index); - value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(index); + if (port->mode == USB_DR_MODE_UNKNOWN) + value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_DISABLED(index); + else if (port->mode == USB_DR_MODE_PERIPHERAL) + value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_DEVICE(index); + else if (port->mode == USB_DR_MODE_HOST) + value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(index); + else if (port->mode == USB_DR_MODE_OTG) + value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_OTG(index); padctl_writel(padctl, value, XUSB_PADCTL_USB2_PORT_CAP); value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); @@ -989,7 +1000,12 @@ static int tegra210_usb2_phy_power_on(struct phy *phy) XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index)); value &= ~(XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_MASK << XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT); - value |= XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18; + if (port->mode == USB_DR_MODE_HOST) + value |= XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18; + else + value |= + XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_VAL << + XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT; padctl_writel(padctl, value, XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index)); -- 2.7.4
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