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-rw-r--r--drivers/usb/host/xhci-mtk.c177
-rw-r--r--drivers/usb/host/xhci-mtk.h6
2 files changed, 65 insertions, 118 deletions
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 1cb2a8ba2de5..6da52df11228 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -57,26 +57,21 @@
/* u2_phy_pll register */
#define CTRL_U2_FORCE_PLL_STB BIT(28)
-#define PERI_WK_CTRL0 0x400
-#define UWK_CTR0_0P_LS_PE BIT(8) /* posedge */
-#define UWK_CTR0_0P_LS_NE BIT(7) /* negedge for 0p linestate*/
-#define UWK_CTL1_1P_LS_C(x) (((x) & 0xf) << 1)
-#define UWK_CTL1_1P_LS_E BIT(0)
-
-#define PERI_WK_CTRL1 0x404
-#define UWK_CTL1_IS_C(x) (((x) & 0xf) << 26)
-#define UWK_CTL1_IS_E BIT(25)
-#define UWK_CTL1_0P_LS_C(x) (((x) & 0xf) << 21)
-#define UWK_CTL1_0P_LS_E BIT(20)
-#define UWK_CTL1_IDDIG_C(x) (((x) & 0xf) << 11) /* cycle debounce */
-#define UWK_CTL1_IDDIG_E BIT(10) /* enable debounce */
-#define UWK_CTL1_IDDIG_P BIT(9) /* polarity */
-#define UWK_CTL1_0P_LS_P BIT(7)
-#define UWK_CTL1_IS_P BIT(6) /* polarity for ip sleep */
-
-enum ssusb_wakeup_src {
- SSUSB_WK_IP_SLEEP = 1,
- SSUSB_WK_LINE_STATE = 2,
+/* usb remote wakeup registers in syscon */
+/* mt8173 etc */
+#define PERI_WK_CTRL1 0x4
+#define WC1_IS_C(x) (((x) & 0xf) << 26) /* cycle debounce */
+#define WC1_IS_EN BIT(25)
+#define WC1_IS_P BIT(6) /* polarity for ip sleep */
+
+/* mt2712 etc */
+#define PERI_SSUSB_SPM_CTRL 0x0
+#define SSC_IP_SLEEP_EN BIT(4)
+#define SSC_SPM_INT_EN BIT(1)
+
+enum ssusb_uwk_vers {
+ SSUSB_UWK_V1 = 1,
+ SSUSB_UWK_V2,
};
static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
@@ -296,112 +291,58 @@ static void xhci_mtk_clks_disable(struct xhci_hcd_mtk *mtk)
}
/* only clocks can be turn off for ip-sleep wakeup mode */
-static void usb_wakeup_ip_sleep_en(struct xhci_hcd_mtk *mtk)
+static void usb_wakeup_ip_sleep_set(struct xhci_hcd_mtk *mtk, bool enable)
{
- u32 tmp;
- struct regmap *pericfg = mtk->pericfg;
-
- regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
- tmp &= ~UWK_CTL1_IS_P;
- tmp &= ~(UWK_CTL1_IS_C(0xf));
- tmp |= UWK_CTL1_IS_C(0x8);
- regmap_write(pericfg, PERI_WK_CTRL1, tmp);
- regmap_write(pericfg, PERI_WK_CTRL1, tmp | UWK_CTL1_IS_E);
-
- regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
- dev_dbg(mtk->dev, "%s(): WK_CTRL1[P6,E25,C26:29]=%#x\n",
- __func__, tmp);
+ u32 reg, msk, val;
+
+ switch (mtk->uwk_vers) {
+ case SSUSB_UWK_V1:
+ reg = mtk->uwk_reg_base + PERI_WK_CTRL1;
+ msk = WC1_IS_EN | WC1_IS_C(0xf) | WC1_IS_P;
+ val = enable ? (WC1_IS_EN | WC1_IS_C(0x8)) : 0;
+ break;
+ case SSUSB_UWK_V2:
+ reg = mtk->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
+ msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;
+ val = enable ? msk : 0;
+ break;
+ default:
+ return;
+ };
+ regmap_update_bits(mtk->uwk, reg, msk, val);
}
-static void usb_wakeup_ip_sleep_dis(struct xhci_hcd_mtk *mtk)
+static int usb_wakeup_of_property_parse(struct xhci_hcd_mtk *mtk,
+ struct device_node *dn)
{
- u32 tmp;
+ struct of_phandle_args args;
+ int ret;
- regmap_read(mtk->pericfg, PERI_WK_CTRL1, &tmp);
- tmp &= ~UWK_CTL1_IS_E;
- regmap_write(mtk->pericfg, PERI_WK_CTRL1, tmp);
-}
+ /* Wakeup function is optional */
+ mtk->uwk_en = of_property_read_bool(dn, "wakeup-source");
+ if (!mtk->uwk_en)
+ return 0;
-/*
-* for line-state wakeup mode, phy's power should not power-down
-* and only support cable plug in/out
-*/
-static void usb_wakeup_line_state_en(struct xhci_hcd_mtk *mtk)
-{
- u32 tmp;
- struct regmap *pericfg = mtk->pericfg;
-
- /* line-state of u2-port0 */
- regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
- tmp &= ~UWK_CTL1_0P_LS_P;
- tmp &= ~(UWK_CTL1_0P_LS_C(0xf));
- tmp |= UWK_CTL1_0P_LS_C(0x8);
- regmap_write(pericfg, PERI_WK_CTRL1, tmp);
- regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
- regmap_write(pericfg, PERI_WK_CTRL1, tmp | UWK_CTL1_0P_LS_E);
-
- /* line-state of u2-port1 */
- regmap_read(pericfg, PERI_WK_CTRL0, &tmp);
- tmp &= ~(UWK_CTL1_1P_LS_C(0xf));
- tmp |= UWK_CTL1_1P_LS_C(0x8);
- regmap_write(pericfg, PERI_WK_CTRL0, tmp);
- regmap_write(pericfg, PERI_WK_CTRL0, tmp | UWK_CTL1_1P_LS_E);
-}
+ ret = of_parse_phandle_with_fixed_args(dn,
+ "mediatek,syscon-wakeup", 2, 0, &args);
+ if (ret)
+ return ret;
-static void usb_wakeup_line_state_dis(struct xhci_hcd_mtk *mtk)
-{
- u32 tmp;
- struct regmap *pericfg = mtk->pericfg;
-
- /* line-state of u2-port0 */
- regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
- tmp &= ~UWK_CTL1_0P_LS_E;
- regmap_write(pericfg, PERI_WK_CTRL1, tmp);
-
- /* line-state of u2-port1 */
- regmap_read(pericfg, PERI_WK_CTRL0, &tmp);
- tmp &= ~UWK_CTL1_1P_LS_E;
- regmap_write(pericfg, PERI_WK_CTRL0, tmp);
-}
+ mtk->uwk_reg_base = args.args[0];
+ mtk->uwk_vers = args.args[1];
+ mtk->uwk = syscon_node_to_regmap(args.np);
+ of_node_put(args.np);
+ dev_info(mtk->dev, "uwk - reg:0x%x, version:%d\n",
+ mtk->uwk_reg_base, mtk->uwk_vers);
-static void usb_wakeup_enable(struct xhci_hcd_mtk *mtk)
-{
- if (mtk->wakeup_src == SSUSB_WK_IP_SLEEP)
- usb_wakeup_ip_sleep_en(mtk);
- else if (mtk->wakeup_src == SSUSB_WK_LINE_STATE)
- usb_wakeup_line_state_en(mtk);
-}
+ return PTR_ERR_OR_ZERO(mtk->uwk);
-static void usb_wakeup_disable(struct xhci_hcd_mtk *mtk)
-{
- if (mtk->wakeup_src == SSUSB_WK_IP_SLEEP)
- usb_wakeup_ip_sleep_dis(mtk);
- else if (mtk->wakeup_src == SSUSB_WK_LINE_STATE)
- usb_wakeup_line_state_dis(mtk);
}
-static int usb_wakeup_of_property_parse(struct xhci_hcd_mtk *mtk,
- struct device_node *dn)
+static void usb_wakeup_set(struct xhci_hcd_mtk *mtk, bool enable)
{
- struct device *dev = mtk->dev;
-
- /*
- * wakeup function is optional, so it is not an error if this property
- * does not exist, and in such case, no need to get relative
- * properties anymore.
- */
- of_property_read_u32(dn, "mediatek,wakeup-src", &mtk->wakeup_src);
- if (!mtk->wakeup_src)
- return 0;
-
- mtk->pericfg = syscon_regmap_lookup_by_phandle(dn,
- "mediatek,syscon-wakeup");
- if (IS_ERR(mtk->pericfg)) {
- dev_err(dev, "fail to get pericfg regs\n");
- return PTR_ERR(mtk->pericfg);
- }
-
- return 0;
+ if (mtk->uwk_en)
+ usb_wakeup_ip_sleep_set(mtk, enable);
}
static int xhci_mtk_setup(struct usb_hcd *hcd);
@@ -583,8 +524,10 @@ static int xhci_mtk_probe(struct platform_device *pdev)
&mtk->u3p_dis_msk);
ret = usb_wakeup_of_property_parse(mtk, node);
- if (ret)
+ if (ret) {
+ dev_err(dev, "failed to parse uwk property\n");
return ret;
+ }
mtk->num_phys = of_count_phandle_with_args(node,
"phys", "#phy-cells");
@@ -777,7 +720,7 @@ static int __maybe_unused xhci_mtk_suspend(struct device *dev)
xhci_mtk_host_disable(mtk);
xhci_mtk_phy_power_off(mtk);
xhci_mtk_clks_disable(mtk);
- usb_wakeup_enable(mtk);
+ usb_wakeup_set(mtk, true);
return 0;
}
@@ -787,7 +730,7 @@ static int __maybe_unused xhci_mtk_resume(struct device *dev)
struct usb_hcd *hcd = mtk->hcd;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
- usb_wakeup_disable(mtk);
+ usb_wakeup_set(mtk, false);
xhci_mtk_clks_enable(mtk);
xhci_mtk_phy_power_on(mtk);
xhci_mtk_host_enable(mtk);
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index 6b74ce5b7564..cc59d80b663b 100644
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -122,8 +122,12 @@ struct xhci_hcd_mtk {
struct regmap *pericfg;
struct phy **phys;
int num_phys;
- int wakeup_src;
bool lpm_support;
+ /* usb remote wakeup */
+ bool uwk_en;
+ struct regmap *uwk;
+ u32 uwk_reg_base;
+ u32 uwk_vers;
};
static inline struct xhci_hcd_mtk *hcd_to_mtk(struct usb_hcd *hcd)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 02:37:43 +0100