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usb/misc/usb3503: Always read refclk frequency from DT
This is necessary to set REF_SEL appropriately in uses where refclk is always available. Signed-off-by: Ben Gamari <ben@smart-cactus.org> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -186,8 +186,31 @@ static int usb3503_probe(struct usb3503 *hub)
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hub->mode = pdata->initial_mode;
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} else if (np) {
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struct clk *clk;
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u32 rate = 0;
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hub->port_off_mask = 0;
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if (!of_property_read_u32(np, "refclk-frequency", &rate)) {
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switch (rate) {
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case 38400000:
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case 26000000:
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case 19200000:
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case 12000000:
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hub->secondary_ref_clk = 0;
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break;
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case 24000000:
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case 27000000:
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case 25000000:
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case 50000000:
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hub->secondary_ref_clk = 1;
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break;
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default:
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dev_err(dev,
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"unsupported reference clock rate (%d)\n",
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(int) rate);
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return -EINVAL;
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}
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}
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clk = devm_clk_get(dev, "refclk");
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if (IS_ERR(clk) && PTR_ERR(clk) != -ENOENT) {
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dev_err(dev, "unable to request refclk (%ld)\n",
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@ -196,31 +219,9 @@ static int usb3503_probe(struct usb3503 *hub)
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}
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if (!IS_ERR(clk)) {
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u32 rate = 0;
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hub->clk = clk;
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if (!of_property_read_u32(np, "refclk-frequency",
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&rate)) {
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switch (rate) {
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case 38400000:
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case 26000000:
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case 19200000:
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case 12000000:
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hub->secondary_ref_clk = 0;
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break;
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case 24000000:
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case 27000000:
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case 25000000:
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case 50000000:
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hub->secondary_ref_clk = 1;
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break;
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default:
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dev_err(dev,
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"unsupported reference clock rate (%d)\n",
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(int) rate);
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return -EINVAL;
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}
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if (rate != 0) {
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err = clk_set_rate(hub->clk, rate);
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if (err) {
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dev_err(dev,
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