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Commit d4f97f10 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Kishon Vijay Abraham I
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phy: phy-mtk-tphy: add property for BC12 



Some platforms support BC12 which is disabled by default,
here add a property to enable it if need

Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent 8158e917

drivers/phy/mediatek/phy-mtk-tphy.c

+13 −0
Original line number Diff line number Diff line
@@ -101,6 +101,9 @@ 
#define P2C_RG_AVALID			BIT(2)

#define P2C_RG_IDDIG			BIT(1)



#define U3P_U2PHYBC12C		0x080

#define P2C_RG_CHGDT_EN		BIT(0)



#define U3P_U3_CHIP_GPIO_CTLD		0x0c

#define P3C_REG_IP_SW_RST		BIT(31)

#define P3C_MCU_BUS_CK_GATE_EN		BIT(30)
@@ -297,6 +300,7 @@ struct mtk_phy_instance { 
	int eye_src;

	int eye_vrt;

	int eye_term;

	bool bc12_en;

};



struct mtk_tphy {
@@ -839,12 +843,16 @@ static void phy_parse_property(struct mtk_tphy *tphy, 
	if (instance->type != PHY_TYPE_USB2)

		return;



	instance->bc12_en = device_property_read_bool(dev, "mediatek,bc12");

	device_property_read_u32(dev, "mediatek,eye-src",

				 &instance->eye_src);

	device_property_read_u32(dev, "mediatek,eye-vrt",

				 &instance->eye_vrt);

	device_property_read_u32(dev, "mediatek,eye-term",

				 &instance->eye_term);

	dev_dbg(dev, "bc12:%d, src:%d, vrt:%d, term:%d\n",

		instance->bc12_en, instance->eye_src,

		instance->eye_vrt, instance->eye_term);

}



static void u2_phy_props_set(struct mtk_tphy *tphy,
@@ -854,6 +862,11 @@ static void u2_phy_props_set(struct mtk_tphy *tphy, 
	void __iomem *com = u2_banks->com;

	u32 tmp;



	if (instance->bc12_en) {

		tmp = readl(com + U3P_U2PHYBC12C);

		tmp |= P2C_RG_CHGDT_EN;	/* BC1.2 path Enable */

		writel(tmp, com + U3P_U2PHYBC12C);

	}



	if (instance->eye_src) {

		tmp = readl(com + U3P_USBPHYACR5);