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authorLinus Torvalds <torvalds@linux-foundation.org>2015-03-22 14:33:55 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2015-03-22 14:33:55 -0400
commitcedd5f659eb9b51a6869806aa123fb10f8f83d86 (patch)
tree9f362597fb4c2b9d19546df5c64f47b8eaf19854 /drivers/usb/host/ehci-atmel.c
parentf897522468fac92b8673151113d6d251b51e6b33 (diff)
parenta886bd92267c9e3d5c912860c6fb5a68479a7643 (diff)
Merge tag 'usb-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / PHY driver fixes from Greg KH: "Here's a number of USB and PHY driver fixes for 4.0-rc5. The largest thing here is a revert of a gadget function driver patch that removes 500 lines of code. Other than that, it's a number of reported bugs fixes and new quirk/id entries. All have been in linux-next for a while" * tag 'usb-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits) usb: common: otg-fsm: only signal connect after switching to peripheral uas: Add US_FL_NO_ATA_1X for Initio Corporation controllers / devices USB: ehci-atmel: rework clk handling MAINTAINERS: add entry for USB OTG FSM usb: chipidea: otg: add a_alt_hnp_support response for B device phy: omap-usb2: Fix missing clk_prepare call when using old dt name phy: ti/omap: Fix modalias phy: core: Fixup return value of phy_exit when !pm_runtime_enabled phy: miphy28lp: Convert to devm_kcalloc and fix wrong sizof phy: miphy365x: Convert to devm_kcalloc and fix wrong sizeof phy: twl4030-usb: Remove redundant assignment for twl->linkstat phy: exynos5-usbdrd: Fix off-by-one valid value checking for args->args[0] phy: Find the right match in devm_phy_destroy() phy: rockchip-usb: Fixup rockchip_usb_phy_power_on failure path phy: ti-pipe3: Simplify ti_pipe3_dpll_wait_lock implementation phy: samsung-usb2: Remove NULL terminating entry from phys array phy: hix5hd2-sata: Check return value of platform_get_resource phy: exynos-dp-video: Kill exynos_dp_video_phy_pwr_isol function Revert "usb: gadget: zero: Add support for interrupt EP" Revert "xhci: Clear the host side toggle manually when endpoint is 'soft reset'" ...
Diffstat (limited to 'drivers/usb/host/ehci-atmel.c')
-rw-r--r--drivers/usb/host/ehci-atmel.c30
1 files changed, 9 insertions, 21 deletions
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 663f7908b15c..be0964a801e8 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -34,7 +34,6 @@ static const char hcd_name[] = "ehci-atmel";
34 34
35struct atmel_ehci_priv { 35struct atmel_ehci_priv {
36 struct clk *iclk; 36 struct clk *iclk;
37 struct clk *fclk;
38 struct clk *uclk; 37 struct clk *uclk;
39 bool clocked; 38 bool clocked;
40}; 39};
@@ -51,12 +50,9 @@ static void atmel_start_clock(struct atmel_ehci_priv *atmel_ehci)
51{ 50{
52 if (atmel_ehci->clocked) 51 if (atmel_ehci->clocked)
53 return; 52 return;
54 if (IS_ENABLED(CONFIG_COMMON_CLK)) { 53
55 clk_set_rate(atmel_ehci->uclk, 48000000); 54 clk_prepare_enable(atmel_ehci->uclk);
56 clk_prepare_enable(atmel_ehci->uclk);
57 }
58 clk_prepare_enable(atmel_ehci->iclk); 55 clk_prepare_enable(atmel_ehci->iclk);
59 clk_prepare_enable(atmel_ehci->fclk);
60 atmel_ehci->clocked = true; 56 atmel_ehci->clocked = true;
61} 57}
62 58
@@ -64,10 +60,9 @@ static void atmel_stop_clock(struct atmel_ehci_priv *atmel_ehci)
64{ 60{
65 if (!atmel_ehci->clocked) 61 if (!atmel_ehci->clocked)
66 return; 62 return;
67 clk_disable_unprepare(atmel_ehci->fclk); 63
68 clk_disable_unprepare(atmel_ehci->iclk); 64 clk_disable_unprepare(atmel_ehci->iclk);
69 if (IS_ENABLED(CONFIG_COMMON_CLK)) 65 clk_disable_unprepare(atmel_ehci->uclk);
70 clk_disable_unprepare(atmel_ehci->uclk);
71 atmel_ehci->clocked = false; 66 atmel_ehci->clocked = false;
72} 67}
73 68
@@ -146,20 +141,13 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
146 retval = -ENOENT; 141 retval = -ENOENT;
147 goto fail_request_resource; 142 goto fail_request_resource;
148 } 143 }
149 atmel_ehci->fclk = devm_clk_get(&pdev->dev, "uhpck"); 144
150 if (IS_ERR(atmel_ehci->fclk)) { 145 atmel_ehci->uclk = devm_clk_get(&pdev->dev, "usb_clk");
151 dev_err(&pdev->dev, "Error getting function clock\n"); 146 if (IS_ERR(atmel_ehci->uclk)) {
152 retval = -ENOENT; 147 dev_err(&pdev->dev, "failed to get uclk\n");
148 retval = PTR_ERR(atmel_ehci->uclk);
153 goto fail_request_resource; 149 goto fail_request_resource;
154 } 150 }
155 if (IS_ENABLED(CONFIG_COMMON_CLK)) {
156 atmel_ehci->uclk = devm_clk_get(&pdev->dev, "usb_clk");
157 if (IS_ERR(atmel_ehci->uclk)) {
158 dev_err(&pdev->dev, "failed to get uclk\n");
159 retval = PTR_ERR(atmel_ehci->uclk);
160 goto fail_request_resource;
161 }
162 }
163 151
164 ehci = hcd_to_ehci(hcd); 152 ehci = hcd_to_ehci(hcd);
165 /* registers start at offset 0x0 */ 153 /* registers start at offset 0x0 */