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usb: dwc3: exynos: add support for exynos7870

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Exynos7870 devices have a DWC3 compatible USB 2.0 controller.
Add support in the driver by:
 - Adding its own compatible string, "samsung,exynos7870-dwusb3".
 - Adding three USBDRD clocks named "bus_early", "ref", and "ctrl", to
   be controlled by the driver.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250301-exynos7870-usb-v3-2-f01697165d19@disroot.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kaustabh Chakraborty 2025-03-01 01:10:34 +05:30 committed by Greg Kroah-Hartman
parent 43092fcd79
commit 811d221413
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/dwc3/dwc3-exynos.c
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@ -163,6 +163,12 @@ static const struct dwc3_exynos_driverdata exynos7_drvdata = {
.suspend_clk_idx = 1,
};
static const struct dwc3_exynos_driverdata exynos7870_drvdata = {
.clk_names = { "bus_early", "ref", "ctrl" },
.num_clks = 3,
.suspend_clk_idx = -1,
};
static const struct dwc3_exynos_driverdata exynos850_drvdata = {
.clk_names = { "bus_early", "ref" },
.num_clks = 2,
@ -185,6 +191,9 @@ static const struct of_device_id exynos_dwc3_match[] = {
}, {
.compatible = "samsung,exynos7-dwusb3",
.data = &exynos7_drvdata,
}, {
.compatible = "samsung,exynos7870-dwusb3",
.data = &exynos7870_drvdata,
}, {
.compatible = "samsung,exynos850-dwusb3",
.data = &exynos850_drvdata,