From 6bae03b0484b54f699d69339fbec5658e885c224 Mon Sep 17 00:00:00 2001 From: Dmitry Rokosov Date: Fri, 12 May 2023 00:04:55 +0300 Subject: [PATCH] usb: dwc3-meson-g12a: support OTG switch for all IP versions From now, the Amlogic A1 USB controller is capable of switching between host and gadget modes based on the status of the OTG_ID signal or via manual USB role change. Previously, only the Amlogic A1 IP version did not use OTG support for host only mode, but this is no longer applicable. Therefore, the 'otg_switch_supported' option can now be removed as it is no longer required. Signed-off-by: Dmitry Rokosov Reviewed-by: Neil Armstrong Reviewed-by: Martin Blumenstingl Link: https://lore.kernel.org/r/20230511210455.6634-4-ddrokosov@sberdevices.ru Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/dwc3-meson-g12a.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c index b282ad0e69c6d..a13afdb219e8d 100644 --- a/drivers/usb/dwc3/dwc3-meson-g12a.c +++ b/drivers/usb/dwc3/dwc3-meson-g12a.c @@ -140,7 +140,6 @@ static const char * const meson_a1_phy_names[] = { struct dwc3_meson_g12a; struct dwc3_meson_g12a_drvdata { - bool otg_switch_supported; bool otg_phy_host_port_disable; struct clk_bulk_data *clks; int num_clks; @@ -189,7 +188,6 @@ static int dwc3_meson_gxl_usb_post_init(struct dwc3_meson_g12a *priv); */ static const struct dwc3_meson_g12a_drvdata gxl_drvdata = { - .otg_switch_supported = true, .otg_phy_host_port_disable = true, .clks = meson_gxl_clocks, .num_clks = ARRAY_SIZE(meson_g12a_clocks), @@ -203,7 +201,6 @@ static const struct dwc3_meson_g12a_drvdata gxl_drvdata = { }; static const struct dwc3_meson_g12a_drvdata gxm_drvdata = { - .otg_switch_supported = true, .otg_phy_host_port_disable = true, .clks = meson_gxl_clocks, .num_clks = ARRAY_SIZE(meson_g12a_clocks), @@ -217,7 +214,6 @@ static const struct dwc3_meson_g12a_drvdata gxm_drvdata = { }; static const struct dwc3_meson_g12a_drvdata axg_drvdata = { - .otg_switch_supported = true, .clks = meson_gxl_clocks, .num_clks = ARRAY_SIZE(meson_gxl_clocks), .phy_names = meson_a1_phy_names, @@ -230,7 +226,6 @@ static const struct dwc3_meson_g12a_drvdata axg_drvdata = { }; static const struct dwc3_meson_g12a_drvdata g12a_drvdata = { - .otg_switch_supported = true, .clks = meson_g12a_clocks, .num_clks = ARRAY_SIZE(meson_g12a_clocks), .phy_names = meson_g12a_phy_names, @@ -242,7 +237,6 @@ static const struct dwc3_meson_g12a_drvdata g12a_drvdata = { }; static const struct dwc3_meson_g12a_drvdata a1_drvdata = { - .otg_switch_supported = false, .clks = meson_a1_clocks, .num_clks = ARRAY_SIZE(meson_a1_clocks), .phy_names = meson_a1_phy_names, @@ -307,7 +301,7 @@ static int dwc3_meson_g12a_usb2_init_phy(struct dwc3_meson_g12a *priv, int i, U2P_R0_POWER_ON_RESET, U2P_R0_POWER_ON_RESET); - if (priv->drvdata->otg_switch_supported && i == USB2_OTG_PHY) { + if (i == USB2_OTG_PHY) { regmap_update_bits(priv->u2p_regmap[i], U2P_R0, U2P_R0_ID_PULLUP | U2P_R0_DRV_VBUS, U2P_R0_ID_PULLUP | U2P_R0_DRV_VBUS); @@ -490,7 +484,7 @@ static int dwc3_meson_g12a_otg_mode_set(struct dwc3_meson_g12a *priv, { int ret; - if (!priv->drvdata->otg_switch_supported || !priv->phys[USB2_OTG_PHY]) + if (!priv->phys[USB2_OTG_PHY]) return -EINVAL; if (mode == PHY_MODE_USB_HOST) @@ -589,9 +583,6 @@ static int dwc3_meson_g12a_otg_init(struct platform_device *pdev, int ret, irq; struct device *dev = &pdev->dev; - if (!priv->drvdata->otg_switch_supported) - return 0; - if (priv->otg_mode == USB_DR_MODE_OTG) { /* Ack irq before registering */ regmap_update_bits(priv->usb_glue_regmap, USB_R5, @@ -841,8 +832,7 @@ static int dwc3_meson_g12a_remove(struct platform_device *pdev) struct device *dev = &pdev->dev; int i; - if (priv->drvdata->otg_switch_supported) - usb_role_switch_unregister(priv->role_switch); + usb_role_switch_unregister(priv->role_switch); of_platform_depopulate(dev); -- 2.30.2