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", "ctrl", and "ref", to
   be controlled by the driver.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
---
 drivers/usb/dwc3/dwc3-exynos.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index f5d963fae9e069e1bd145ff5bd1b704da89fb74c..ca8d2955303c589ea03a261944aadb6582c9cb9f 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -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", "ctrl", "ref" },
+	.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,

-- 
2.48.1

On Wed, Feb 19, 2025, Kaustabh Chakraborty wrote:
> 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", "ctrl", and "ref", to
>    be controlled by the driver.
> 
> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
> ---
>  drivers/usb/dwc3/dwc3-exynos.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
> index f5d963fae9e069e1bd145ff5bd1b704da89fb74c..ca8d2955303c589ea03a261944aadb6582c9cb9f 100644
> --- a/drivers/usb/dwc3/dwc3-exynos.c
> +++ b/drivers/usb/dwc3/dwc3-exynos.c
> @@ -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", "ctrl", "ref" },
> +	.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,
> 
> -- 
> 2.48.1
> 

Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>

Thanks,
Thinh