diff options
Diffstat (limited to 'drivers/usb/mtu3/mtu3_plat.c')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_plat.c | 95 |
1 files changed, 20 insertions, 75 deletions
diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c index 7786a95a874e..c0615f6e5cce 100644 --- a/drivers/usb/mtu3/mtu3_plat.c +++ b/drivers/usb/mtu3/mtu3_plat.c @@ -5,7 +5,6 @@ * Author: Chunfeng Yun <chunfeng.yun@mediatek.com> */ -#include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/iopoll.h> #include <linux/kernel.h> @@ -101,54 +100,6 @@ static void ssusb_phy_power_off(struct ssusb_mtk *ssusb) phy_power_off(ssusb->phys[i]); } -static int ssusb_clks_enable(struct ssusb_mtk *ssusb) -{ - int ret; - - ret = clk_prepare_enable(ssusb->sys_clk); - if (ret) { - dev_err(ssusb->dev, "failed to enable sys_clk\n"); - goto sys_clk_err; - } - - ret = clk_prepare_enable(ssusb->ref_clk); - if (ret) { - dev_err(ssusb->dev, "failed to enable ref_clk\n"); - goto ref_clk_err; - } - - ret = clk_prepare_enable(ssusb->mcu_clk); - if (ret) { - dev_err(ssusb->dev, "failed to enable mcu_clk\n"); - goto mcu_clk_err; - } - - ret = clk_prepare_enable(ssusb->dma_clk); - if (ret) { - dev_err(ssusb->dev, "failed to enable dma_clk\n"); - goto dma_clk_err; - } - - return 0; - -dma_clk_err: - clk_disable_unprepare(ssusb->mcu_clk); -mcu_clk_err: - clk_disable_unprepare(ssusb->ref_clk); -ref_clk_err: - clk_disable_unprepare(ssusb->sys_clk); -sys_clk_err: - return ret; -} - -static void ssusb_clks_disable(struct ssusb_mtk *ssusb) -{ - clk_disable_unprepare(ssusb->dma_clk); - clk_disable_unprepare(ssusb->mcu_clk); - clk_disable_unprepare(ssusb->ref_clk); - clk_disable_unprepare(ssusb->sys_clk); -} - static int ssusb_rscs_init(struct ssusb_mtk *ssusb) { int ret = 0; @@ -159,7 +110,7 @@ static int ssusb_rscs_init(struct ssusb_mtk *ssusb) goto vusb33_err; } - ret = ssusb_clks_enable(ssusb); + ret = clk_bulk_prepare_enable(BULK_CLKS_CNT, ssusb->clks); if (ret) goto clks_err; @@ -180,7 +131,7 @@ static int ssusb_rscs_init(struct ssusb_mtk *ssusb) phy_err: ssusb_phy_exit(ssusb); phy_init_err: - ssusb_clks_disable(ssusb); + clk_bulk_disable_unprepare(BULK_CLKS_CNT, ssusb->clks); clks_err: regulator_disable(ssusb->vusb33); vusb33_err: @@ -189,7 +140,7 @@ vusb33_err: static void ssusb_rscs_exit(struct ssusb_mtk *ssusb) { - ssusb_clks_disable(ssusb); + clk_bulk_disable_unprepare(BULK_CLKS_CNT, ssusb->clks); regulator_disable(ssusb->vusb33); ssusb_phy_power_off(ssusb); ssusb_phy_exit(ssusb); @@ -215,6 +166,7 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) { struct device_node *node = pdev->dev.of_node; struct otg_switch_mtk *otg_sx = &ssusb->otg_switch; + struct clk_bulk_data *clks = ssusb->clks; struct device *dev = &pdev->dev; int i; int ret; @@ -225,23 +177,13 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) return PTR_ERR(ssusb->vusb33); } - ssusb->sys_clk = devm_clk_get(dev, "sys_ck"); - if (IS_ERR(ssusb->sys_clk)) { - dev_err(dev, "failed to get sys clock\n"); - return PTR_ERR(ssusb->sys_clk); - } - - ssusb->ref_clk = devm_clk_get_optional(dev, "ref_ck"); - if (IS_ERR(ssusb->ref_clk)) - return PTR_ERR(ssusb->ref_clk); - - ssusb->mcu_clk = devm_clk_get_optional(dev, "mcu_ck"); - if (IS_ERR(ssusb->mcu_clk)) - return PTR_ERR(ssusb->mcu_clk); - - ssusb->dma_clk = devm_clk_get_optional(dev, "dma_ck"); - if (IS_ERR(ssusb->dma_clk)) - return PTR_ERR(ssusb->dma_clk); + clks[0].id = "sys_ck"; + clks[1].id = "ref_ck"; + clks[2].id = "mcu_ck"; + clks[3].id = "dma_ck"; + ret = devm_clk_bulk_get_optional(dev, BULK_CLKS_CNT, clks); + if (ret) + return ret; ssusb->num_phys = of_count_phandle_with_args(node, "phys", "#phy-cells"); @@ -299,11 +241,14 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) of_property_read_bool(node, "enable-manual-drd"); otg_sx->role_sw_used = of_property_read_bool(node, "usb-role-switch"); - if (!otg_sx->role_sw_used && of_property_read_bool(node, "extcon")) { + if (otg_sx->role_sw_used || otg_sx->manual_drd_enabled) + goto out; + + if (of_property_read_bool(node, "extcon")) { otg_sx->edev = extcon_get_edev_by_phandle(ssusb->dev, 0); if (IS_ERR(otg_sx->edev)) { - dev_err(ssusb->dev, "couldn't get extcon device\n"); - return PTR_ERR(otg_sx->edev); + return dev_err_probe(dev, PTR_ERR(otg_sx->edev), + "couldn't get extcon device\n"); } } @@ -461,7 +406,7 @@ static int __maybe_unused mtu3_suspend(struct device *dev) ssusb_host_disable(ssusb, true); ssusb_phy_power_off(ssusb); - ssusb_clks_disable(ssusb); + clk_bulk_disable_unprepare(BULK_CLKS_CNT, ssusb->clks); ssusb_wakeup_set(ssusb, true); return 0; @@ -478,7 +423,7 @@ static int __maybe_unused mtu3_resume(struct device *dev) return 0; ssusb_wakeup_set(ssusb, false); - ret = ssusb_clks_enable(ssusb); + ret = clk_bulk_prepare_enable(BULK_CLKS_CNT, ssusb->clks); if (ret) goto clks_err; @@ -491,7 +436,7 @@ static int __maybe_unused mtu3_resume(struct device *dev) return 0; phy_err: - ssusb_clks_disable(ssusb); + clk_bulk_disable_unprepare(BULK_CLKS_CNT, ssusb->clks); clks_err: return ret; } |