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Tue, 07 Apr 2026 07:57:57 -0700 (PDT) From: Biju X-Google-Original-From: Biju To: Fabrizio Castro , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm Cc: Biju Das , linux-spi@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH v3 1/2] dt-bindings: spi: renesas,rzv2h-rspi: Document RZ/G3L SoC Date: Tue, 7 Apr 2026 15:57:50 +0100 Message-ID: <20260407145753.101840-2-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260407145753.101840-1-biju.das.jz@bp.renesas.com> References: <20260407145753.101840-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Biju Das Document RSPI IP found on the RZ/G3L SoC. The RSPI IP is compatible with the RZ/V2H RSPI IP, but has 2 clocks compared to 3 on RZ/V2H. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Reviewed-by: Krzysztof Kozlowski --- v2->v3: * Added ordered DMA names for the dma-names property. * Dropped the tag v1->v2: * Collected tag --- .../bindings/spi/renesas,rzv2h-rspi.yaml | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml = b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml index 2c9045fd51de..6f4bb83a549f 100644 --- a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml +++ b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml @@ -13,6 +13,7 @@ properties: compatible: oneOf: - enum: + - renesas,r9a08g046-rspi # RZ/G3L - renesas,r9a09g057-rspi # RZ/V2H(P) - renesas,r9a09g077-rspi # RZ/T2H - items: @@ -90,6 +91,33 @@ required: =20 allOf: - $ref: spi-controller.yaml# + - if: + properties: + compatible: + contains: + enum: + - renesas,r9a08g046-rspi + then: + properties: + clocks: + maxItems: 2 + + clock-names: + items: + - const: pclk + - const: tclk + dmas: + maxItems: 2 + + dma-names: + items: + - const: rx + - const: tx + + required: + - resets + - reset-names + - if: properties: compatible: --=20 2.43.0 From nobody Sun Jun 21 04:21:50 2026 Received: from mail-wm1-f47.google.com (mail-wm1-f47.google.com [209.85.128.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0FF4133D6E6 for ; 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charset="utf-8" From: Biju Das Add support for RZ/G3L RSPI. The RZ/G3L variant requires only 2 clocks (pclk + tclk), unlike the RZ/V2H which needs 3. Reviewed-by: Geert Uytterhoeven Signed-off-by: Biju Das --- v2->v3: * No change. v1->v2: * Collected tag. --- drivers/spi/spi-rzv2h-rspi.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/spi/spi-rzv2h-rspi.c b/drivers/spi/spi-rzv2h-rspi.c index 23f0e92ae208..38ee09e389c9 100644 --- a/drivers/spi/spi-rzv2h-rspi.c +++ b/drivers/spi/spi-rzv2h-rspi.c @@ -811,6 +811,13 @@ static const struct rzv2h_rspi_info rzv2h_info =3D { .num_clks =3D 3, }; =20 +static const struct rzv2h_rspi_info rzg3l_info =3D { + .find_tclk_rate =3D rzv2h_rspi_find_rate_fixed, + .tclk_name =3D "tclk", + .fifo_size =3D 16, + .num_clks =3D 2, +}; + static const struct rzv2h_rspi_info rzt2h_info =3D { .find_tclk_rate =3D rzv2h_rspi_find_rate_variable, .find_pclk_rate =3D rzv2h_rspi_find_rate_fixed, @@ -820,6 +827,7 @@ static const struct rzv2h_rspi_info rzt2h_info =3D { }; =20 static const struct of_device_id rzv2h_rspi_match[] =3D { + { .compatible =3D "renesas,r9a08g046-rspi", &rzg3l_info }, { .compatible =3D "renesas,r9a09g057-rspi", &rzv2h_info }, { .compatible =3D "renesas,r9a09g077-rspi", &rzt2h_info }, { /* sentinel */ } --=20 2.43.0