mwifiex: improve AMSDU packet aggregation for PCIe and SDIO
[firefly-linux-kernel-4.4.55.git] / drivers / mfd / omap-usb-host.c
index 90b630ccc8bc65fa7381439cd190274834c50153..651e249287dc4292a127d30de326323b989c3b17 100644 (file)
@@ -665,55 +665,78 @@ static int usbhs_omap_probe(struct platform_device *pdev)
                goto err_mem;
        }
 
-       need_logic_fck = false;
+       /* Set all clocks as invalid to begin with */
+       omap->ehci_logic_fck = ERR_PTR(-ENODEV);
+       omap->init_60m_fclk = ERR_PTR(-ENODEV);
+       omap->utmi_p1_gfclk = ERR_PTR(-ENODEV);
+       omap->utmi_p2_gfclk = ERR_PTR(-ENODEV);
+       omap->xclk60mhsp1_ck = ERR_PTR(-ENODEV);
+       omap->xclk60mhsp2_ck = ERR_PTR(-ENODEV);
+
        for (i = 0; i < omap->nports; i++) {
-               if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) ||
-                       is_ehci_hsic_mode(i))
-                               need_logic_fck |= true;
+               omap->utmi_clk[i] = ERR_PTR(-ENODEV);
+               omap->hsic480m_clk[i] = ERR_PTR(-ENODEV);
+               omap->hsic60m_clk[i] = ERR_PTR(-ENODEV);
        }
 
-       omap->ehci_logic_fck = ERR_PTR(-EINVAL);
-       if (need_logic_fck) {
-               omap->ehci_logic_fck = clk_get(dev, "ehci_logic_fck");
-               if (IS_ERR(omap->ehci_logic_fck)) {
-                       ret = PTR_ERR(omap->ehci_logic_fck);
-                       dev_dbg(dev, "ehci_logic_fck failed:%d\n", ret);
+       /* for OMAP3 i.e. USBHS REV1 */
+       if (omap->usbhs_rev == OMAP_USBHS_REV1) {
+               need_logic_fck = false;
+               for (i = 0; i < omap->nports; i++) {
+                       if (is_ehci_phy_mode(pdata->port_mode[i]) ||
+                           is_ehci_tll_mode(pdata->port_mode[i]) ||
+                           is_ehci_hsic_mode(pdata->port_mode[i]))
+
+                               need_logic_fck |= true;
                }
+
+               if (need_logic_fck) {
+                       omap->ehci_logic_fck = devm_clk_get(dev,
+                                                           "usbhost_120m_fck");
+                       if (IS_ERR(omap->ehci_logic_fck)) {
+                               ret = PTR_ERR(omap->ehci_logic_fck);
+                               dev_err(dev, "usbhost_120m_fck failed:%d\n",
+                                       ret);
+                               goto err_mem;
+                       }
+               }
+               goto initialize;
        }
 
-       omap->utmi_p1_gfclk = clk_get(dev, "utmi_p1_gfclk");
+       /* for OMAP4+ i.e. USBHS REV2+ */
+       omap->utmi_p1_gfclk = devm_clk_get(dev, "utmi_p1_gfclk");
        if (IS_ERR(omap->utmi_p1_gfclk)) {
                ret = PTR_ERR(omap->utmi_p1_gfclk);
                dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret);
-               goto err_p1_gfclk;
+               goto err_mem;
        }
 
-       omap->utmi_p2_gfclk = clk_get(dev, "utmi_p2_gfclk");
+       omap->utmi_p2_gfclk = devm_clk_get(dev, "utmi_p2_gfclk");
        if (IS_ERR(omap->utmi_p2_gfclk)) {
                ret = PTR_ERR(omap->utmi_p2_gfclk);
                dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret);
-               goto err_p2_gfclk;
+               goto err_mem;
        }
 
-       omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck");
+       omap->xclk60mhsp1_ck = devm_clk_get(dev, "refclk_60m_ext_p1");
        if (IS_ERR(omap->xclk60mhsp1_ck)) {
                ret = PTR_ERR(omap->xclk60mhsp1_ck);
-               dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret);
-               goto err_xclk60mhsp1;
+               dev_err(dev, "refclk_60m_ext_p1 failed error:%d\n", ret);
+               goto err_mem;
        }
 
-       omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck");
+       omap->xclk60mhsp2_ck = devm_clk_get(dev, "refclk_60m_ext_p2");
        if (IS_ERR(omap->xclk60mhsp2_ck)) {
                ret = PTR_ERR(omap->xclk60mhsp2_ck);
-               dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret);
-               goto err_xclk60mhsp2;
+               dev_err(dev, "refclk_60m_ext_p2 failed error:%d\n", ret);
+               goto err_mem;
        }
 
-       omap->init_60m_fclk = clk_get(dev, "init_60m_fclk");
+       omap->init_60m_fclk = devm_clk_get(dev, "refclk_60m_int");
        if (IS_ERR(omap->init_60m_fclk)) {
                ret = PTR_ERR(omap->init_60m_fclk);
-               dev_err(dev, "init_60m_fclk failed error:%d\n", ret);
-               goto err_init60m;
+               dev_err(dev, "refclk_60m_int failed error:%d\n", ret);
+               goto err_mem;
        }
 
        for (i = 0; i < omap->nports; i++) {
@@ -727,55 +750,72 @@ static int usbhs_omap_probe(struct platform_device *pdev)
                 * platforms have all clocks and we can function without
                 * them
                 */
-               omap->utmi_clk[i] = clk_get(dev, clkname);
-               if (IS_ERR(omap->utmi_clk[i]))
-                       dev_dbg(dev, "Failed to get clock : %s : %ld\n",
-                               clkname, PTR_ERR(omap->utmi_clk[i]));
+               omap->utmi_clk[i] = devm_clk_get(dev, clkname);
+               if (IS_ERR(omap->utmi_clk[i])) {
+                       ret = PTR_ERR(omap->utmi_clk[i]);
+                       dev_err(dev, "Failed to get clock : %s : %d\n",
+                               clkname, ret);
+                       goto err_mem;
+               }
 
                snprintf(clkname, sizeof(clkname),
                                "usb_host_hs_hsic480m_p%d_clk", i + 1);
-               omap->hsic480m_clk[i] = clk_get(dev, clkname);
-               if (IS_ERR(omap->hsic480m_clk[i]))
-                       dev_dbg(dev, "Failed to get clock : %s : %ld\n",
-                               clkname, PTR_ERR(omap->hsic480m_clk[i]));
+               omap->hsic480m_clk[i] = devm_clk_get(dev, clkname);
+               if (IS_ERR(omap->hsic480m_clk[i])) {
+                       ret = PTR_ERR(omap->hsic480m_clk[i]);
+                       dev_err(dev, "Failed to get clock : %s : %d\n",
+                               clkname, ret);
+                       goto err_mem;
+               }
 
                snprintf(clkname, sizeof(clkname),
                                "usb_host_hs_hsic60m_p%d_clk", i + 1);
-               omap->hsic60m_clk[i] = clk_get(dev, clkname);
-               if (IS_ERR(omap->hsic60m_clk[i]))
-                       dev_dbg(dev, "Failed to get clock : %s : %ld\n",
-                               clkname, PTR_ERR(omap->hsic60m_clk[i]));
+               omap->hsic60m_clk[i] = devm_clk_get(dev, clkname);
+               if (IS_ERR(omap->hsic60m_clk[i])) {
+                       ret = PTR_ERR(omap->hsic60m_clk[i]);
+                       dev_err(dev, "Failed to get clock : %s : %d\n",
+                               clkname, ret);
+                       goto err_mem;
+               }
        }
 
        if (is_ehci_phy_mode(pdata->port_mode[0])) {
-               /* for OMAP3, clk_set_parent fails */
                ret = clk_set_parent(omap->utmi_p1_gfclk,
                                        omap->xclk60mhsp1_ck);
-               if (ret != 0)
-                       dev_dbg(dev, "xclk60mhsp1_ck set parent failed: %d\n",
-                                       ret);
+               if (ret != 0) {
+                       dev_err(dev, "xclk60mhsp1_ck set parent failed: %d\n",
+                               ret);
+                       goto err_mem;
+               }
        } else if (is_ehci_tll_mode(pdata->port_mode[0])) {
                ret = clk_set_parent(omap->utmi_p1_gfclk,
                                        omap->init_60m_fclk);
-               if (ret != 0)
-                       dev_dbg(dev, "P0 init_60m_fclk set parent failed: %d\n",
-                                       ret);
+               if (ret != 0) {
+                       dev_err(dev, "P0 init_60m_fclk set parent failed: %d\n",
+                               ret);
+                       goto err_mem;
+               }
        }
 
        if (is_ehci_phy_mode(pdata->port_mode[1])) {
                ret = clk_set_parent(omap->utmi_p2_gfclk,
                                        omap->xclk60mhsp2_ck);
-               if (ret != 0)
-                       dev_dbg(dev, "xclk60mhsp2_ck set parent failed: %d\n",
-                                       ret);
+               if (ret != 0) {
+                       dev_err(dev, "xclk60mhsp2_ck set parent failed: %d\n",
+                               ret);
+                       goto err_mem;
+               }
        } else if (is_ehci_tll_mode(pdata->port_mode[1])) {
                ret = clk_set_parent(omap->utmi_p2_gfclk,
                                                omap->init_60m_fclk);
-               if (ret != 0)
-                       dev_dbg(dev, "P1 init_60m_fclk set parent failed: %d\n",
-                                       ret);
+               if (ret != 0) {
+                       dev_err(dev, "P1 init_60m_fclk set parent failed: %d\n",
+                               ret);
+                       goto err_mem;
+               }
        }
 
+initialize:
        omap_usbhs_init(dev);
 
        if (dev->of_node) {
@@ -784,7 +824,7 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 
                if (ret) {
                        dev_err(dev, "Failed to create DT children: %d\n", ret);
-                       goto err_alloc;
+                       goto err_mem;
                }
 
        } else {
@@ -792,40 +832,12 @@ static int usbhs_omap_probe(struct platform_device *pdev)
                if (ret) {
                        dev_err(dev, "omap_usbhs_alloc_children failed: %d\n",
                                                ret);
-                       goto err_alloc;
+                       goto err_mem;
                }
        }
 
        return 0;
 
-err_alloc:
-       for (i = 0; i < omap->nports; i++) {
-               if (!IS_ERR(omap->utmi_clk[i]))
-                       clk_put(omap->utmi_clk[i]);
-               if (!IS_ERR(omap->hsic60m_clk[i]))
-                       clk_put(omap->hsic60m_clk[i]);
-               if (!IS_ERR(omap->hsic480m_clk[i]))
-                       clk_put(omap->hsic480m_clk[i]);
-       }
-
-       clk_put(omap->init_60m_fclk);
-
-err_init60m:
-       clk_put(omap->xclk60mhsp2_ck);
-
-err_xclk60mhsp2:
-       clk_put(omap->xclk60mhsp1_ck);
-
-err_xclk60mhsp1:
-       clk_put(omap->utmi_p2_gfclk);
-
-err_p2_gfclk:
-       clk_put(omap->utmi_p1_gfclk);
-
-err_p1_gfclk:
-       if (!IS_ERR(omap->ehci_logic_fck))
-               clk_put(omap->ehci_logic_fck);
-
 err_mem:
        pm_runtime_disable(dev);
 
@@ -847,27 +859,6 @@ static int usbhs_omap_remove_child(struct device *dev, void *data)
  */
 static int usbhs_omap_remove(struct platform_device *pdev)
 {
-       struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev);
-       int i;
-
-       for (i = 0; i < omap->nports; i++) {
-               if (!IS_ERR(omap->utmi_clk[i]))
-                       clk_put(omap->utmi_clk[i]);
-               if (!IS_ERR(omap->hsic60m_clk[i]))
-                       clk_put(omap->hsic60m_clk[i]);
-               if (!IS_ERR(omap->hsic480m_clk[i]))
-                       clk_put(omap->hsic480m_clk[i]);
-       }
-
-       clk_put(omap->init_60m_fclk);
-       clk_put(omap->utmi_p1_gfclk);
-       clk_put(omap->utmi_p2_gfclk);
-       clk_put(omap->xclk60mhsp2_ck);
-       clk_put(omap->xclk60mhsp1_ck);
-
-       if (!IS_ERR(omap->ehci_logic_fck))
-               clk_put(omap->ehci_logic_fck);
-
        pm_runtime_disable(&pdev->dev);
 
        /* remove children */