linux-kernel - [PATCH 3/8] usb: dwc3: exynos: Add support for Exynos850 variant

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Message-Id: <20230819031731.22618-4-semen.protsenko@linaro.org>
Date:   Fri, 18 Aug 2023 22:17:26 -0500
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Cc:     JaeHun Jung <jh0801.jung@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Conor Dooley <conor+dt@...nel.org>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Heiko Stuebner <heiko@...ech.de>,
        linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: [PATCH 3/8] usb: dwc3: exynos: Add support for Exynos850 variant

Add Exynos850 compatible string and associated driver data. Only two
clocks are needed for this SoC:
  - bus_early: bus clock needed for registers access
  - ref: USB 2.0 DRD reference clock (50 MHz)

Signed-off-by: Sam Protsenko <semen.protsenko@...aro.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 f882dd647340..5d365ca51771 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 exynos850_drvdata = {
+	.clk_names = { "bus_early", "ref" },
+	.num_clks = 2,
+	.suspend_clk_idx = -1,
+};
+
 static const struct of_device_id exynos_dwc3_match[] = {
 	{
 		.compatible = "samsung,exynos5250-dwusb3",
@@ -173,6 +179,9 @@ static const struct of_device_id exynos_dwc3_match[] = {
 	}, {
 		.compatible = "samsung,exynos7-dwusb3",
 		.data = &exynos7_drvdata,
+	}, {
+		.compatible = "samsung,exynos850-dwusb3",
+		.data = &exynos850_drvdata,
 	}, {
 	}
 };
-- 
2.39.2