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Mon, 26 Oct 2026 13:57:48 +0000 (GMT) Received: from vega.samsungds.net (unknown [107.108.73.84]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20261026135745epsmtip29c8ecd39ba6a4b3b57ca6895d18f1a9b~iGPpxhzSS1131311313epsmtip2X; Mon, 26 Oct 2026 13:57:45 +0000 (GMT) From: Selvarasu Ganesan To: gregkh@linuxfoundation.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, peter.griffin@linaro.org, alim.akhtar@samsung.com, Thinh.Nguyen@synopsys.com, selvarasu.g@samsung.com, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: jh0801.jung@samsung.com, h10.kim@samsung.com, dh10.jung@samsung.com, akash.m5@samsung.com, hongpooh.kim@samsung.com, eomji.oh@samsung.com, shijie.cai@samsung.com, muhammed.ali@samsung.com, thiagu.r@samsung.com Subject: [PATCH v4 0/2] Add USB DWC3 support for Samsung Exynos8855 Date: Mon, 26 Oct 2026 19:27:13 +0530 Message-Id: <20261026135715.33071-1-selvarasu.g@samsung.com> X-Mailer: git-send-email 2.17.1 X-CMS-MailID: 20261026135748epcas5p4b33d010f9bf35a6fcbbc1ae2cc9a6276 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P cpgsPolicy: CPGSC10-542,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20261026135748epcas5p4b33d010f9bf35a6fcbbc1ae2cc9a6276 References: X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list The Samsung Exynos8855 SoC implements a Synopsys DesignWare USB3 DRD controller. The DWC3 core on the Exynos8855 is instantiated with the generic DWC3 platform driver using a flattened model, where the controller is directly addressable without a separate glue layer. This is the first Samsung Exynos binding using the flattened representation, and this series adds the device tree binding and platform driver support for this configuration. Signed-off-by: Selvarasu Ganesan --- Changes in v4: - Drop redundant "binding" from the subject. - Reorder properties, interrupts after clocks, power-domains after interrupts. - Reorder interrupt property in the example as well. - List clocks with per item descriptions. - Link to v3: https://lore.kernel.org/all/20261023131501.3157463-1-selvarasu.g@samsung.com/ Changes in v3: - Drop the MAINTAINERS patch. - Drop the samsung,snps-dwc3 generic fallback compatible. The binding now uses the SoC specific compatible samsung,exynos8855-dwc3 only. - Binding file is renamed to match the compatible string. - Remove the "select" from the binding. - List the clocks (ref, bus) explicitly and drop the redundant if/then block. - Update the driver patch to use the new compatible string. - Drop the v2 Reviewed-by (Alim Akhtar) and Acked-by (Thinh Nguyen) tags as the patches changed. re-requesting them. - Link to v2: https://lore.kernel.org/all/20260916122229.2604003-1-selvarasu.g@samsung.com/ Changes in v2: - Commit 2/3: Clarify this is the first Samsung Exynos binding using the flattened node representation. - Commit 3/3: Add the compatible entry in alphabetical order in the of_match_table. - Link to v1: https://lore.kernel.org/all/20260903071250.3421499-1-selvarasu.g@samsung.com/ Selvarasu Ganesan (2): dt-bindings: usb: Add Samsung Exynos8855 DWC3 controller usb: dwc3: Add Exynos8855 to the generic platform driver .../bindings/usb/samsung,exynos8855-dwc3.yaml | 71 +++++++++++++++++++ drivers/usb/dwc3/dwc3-generic-plat.c | 5 +- 2 files changed, 74 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/samsung,exynos8855-dwc3.yaml -- 2.17.1