diff options
Diffstat (limited to 'drivers/usb/host/ehci-atmel.c')
-rw-r--r-- | drivers/usb/host/ehci-atmel.c | 30 |
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 | ||
35 | struct atmel_ehci_priv { | 35 | struct 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 */ |