diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.14/0125-phy-phy-mtk-tphy-add-set_mode-callback.patch')
| -rw-r--r-- | target/linux/mediatek/patches-4.14/0125-phy-phy-mtk-tphy-add-set_mode-callback.patch | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.14/0125-phy-phy-mtk-tphy-add-set_mode-callback.patch b/target/linux/mediatek/patches-4.14/0125-phy-phy-mtk-tphy-add-set_mode-callback.patch new file mode 100644 index 0000000000..75b3908c8d --- /dev/null +++ b/target/linux/mediatek/patches-4.14/0125-phy-phy-mtk-tphy-add-set_mode-callback.patch @@ -0,0 +1,91 @@ +From d42ebed1aa669c5a897ec0aa5e1ede8d9069894a Mon Sep 17 00:00:00 2001 +From: Chunfeng Yun <chunfeng.yun@mediatek.com> +Date: Thu, 21 Sep 2017 18:31:49 +0800 +Subject: [PATCH 125/224] phy: phy-mtk-tphy: add set_mode callback + +This is used to force PHY with USB OTG function to enter a specific +mode, and override OTG IDPIN(or IDDIG) signal. + +Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> +Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> +--- + drivers/phy/mediatek/phy-mtk-tphy.c | 39 +++++++++++++++++++++++++++++++++++++ + 1 file changed, 39 insertions(+) + +diff --git a/drivers/phy/mediatek/phy-mtk-tphy.c b/drivers/phy/mediatek/phy-mtk-tphy.c +index 721a2a1c97ef..402385f2562a 100644 +--- a/drivers/phy/mediatek/phy-mtk-tphy.c ++++ b/drivers/phy/mediatek/phy-mtk-tphy.c +@@ -96,9 +96,11 @@ + + #define U3P_U2PHYDTM1 0x06C + #define P2C_RG_UART_EN BIT(16) ++#define P2C_FORCE_IDDIG BIT(9) + #define P2C_RG_VBUSVALID BIT(5) + #define P2C_RG_SESSEND BIT(4) + #define P2C_RG_AVALID BIT(2) ++#define P2C_RG_IDDIG BIT(1) + + #define U3P_U3_CHIP_GPIO_CTLD 0x0c + #define P3C_REG_IP_SW_RST BIT(31) +@@ -585,6 +587,31 @@ static void u2_phy_instance_exit(struct mtk_tphy *tphy, + } + } + ++static void u2_phy_instance_set_mode(struct mtk_tphy *tphy, ++ struct mtk_phy_instance *instance, ++ enum phy_mode mode) ++{ ++ struct u2phy_banks *u2_banks = &instance->u2_banks; ++ u32 tmp; ++ ++ tmp = readl(u2_banks->com + U3P_U2PHYDTM1); ++ switch (mode) { ++ case PHY_MODE_USB_DEVICE: ++ tmp |= P2C_FORCE_IDDIG | P2C_RG_IDDIG; ++ break; ++ case PHY_MODE_USB_HOST: ++ tmp |= P2C_FORCE_IDDIG; ++ tmp &= ~P2C_RG_IDDIG; ++ break; ++ case PHY_MODE_USB_OTG: ++ tmp &= ~(P2C_FORCE_IDDIG | P2C_RG_IDDIG); ++ break; ++ default: ++ return; ++ } ++ writel(tmp, u2_banks->com + U3P_U2PHYDTM1); ++} ++ + static void pcie_phy_instance_init(struct mtk_tphy *tphy, + struct mtk_phy_instance *instance) + { +@@ -881,6 +908,17 @@ static int mtk_phy_exit(struct phy *phy) + return 0; + } + ++static int mtk_phy_set_mode(struct phy *phy, enum phy_mode mode) ++{ ++ struct mtk_phy_instance *instance = phy_get_drvdata(phy); ++ struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent); ++ ++ if (instance->type == PHY_TYPE_USB2) ++ u2_phy_instance_set_mode(tphy, instance, mode); ++ ++ return 0; ++} ++ + static struct phy *mtk_phy_xlate(struct device *dev, + struct of_phandle_args *args) + { +@@ -931,6 +969,7 @@ static const struct phy_ops mtk_tphy_ops = { + .exit = mtk_phy_exit, + .power_on = mtk_phy_power_on, + .power_off = mtk_phy_power_off, ++ .set_mode = mtk_phy_set_mode, + .owner = THIS_MODULE, + }; + +-- +2.11.0 + |