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Wed, 19 Nov 2025 11:39:22 +0000 (GMT) From: Raghav Sharma To: krzk@kernel.org, s.nawrocki@samsung.com, cw00.choi@samsung.com, alim.akhtar@samsung.com, mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, conor+dt@kernel.org, sunyeal.hong@samsung.com, shin.son@samsung.com Cc: linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, chandan.vn@samsung.com, dev.tailor@samsung.com, karthik.sun@samsung.com, Raghav Sharma Subject: [PATCH 1/3] dt-bindings: clock: exynosautov920: add MFD clock definitions Date: Wed, 19 Nov 2025 17:17:42 +0530 Message-Id: <20251119114744.1914416-2-raghav.s@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251119114744.1914416-1-raghav.s@samsung.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 X-CMS-MailID: 20251119113927epcas5p15154cb4a7824e9ca65ac18842b68d785 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P cpgsPolicy: CPGSC10-543,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20251119113927epcas5p15154cb4a7824e9ca65ac18842b68d785 References: <20251119114744.1914416-1-raghav.s@samsung.com> Add device tree clock binding definitions for CMU_MFD Signed-off-by: Raghav Sharma --- .../clock/samsung,exynosautov920-clock.yaml | 19 +++++++++++++++++++ .../clock/samsung,exynosautov920.h | 4 ++++ 2 files changed, 23 insertions(+) diff --git a/Documentation/devicetree/bindings/clock/samsung,exynosautov920= -clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynosautov92= 0-clock.yaml index 5bf905f88a1a..1318720193b3 100644 --- a/Documentation/devicetree/bindings/clock/samsung,exynosautov920-clock.= yaml +++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov920-clock.= yaml @@ -40,6 +40,7 @@ properties: - samsung,exynosautov920-cmu-hsi2 - samsung,exynosautov920-cmu-m2m - samsung,exynosautov920-cmu-mfc + - samsung,exynosautov920-cmu-mfd - samsung,exynosautov920-cmu-misc - samsung,exynosautov920-cmu-peric0 - samsung,exynosautov920-cmu-peric1 @@ -268,6 +269,24 @@ allOf: - const: mfc - const: wfd =20 + - if: + properties: + compatible: + contains: + const: samsung,exynosautov920-cmu-mfd + + then: + properties: + clocks: + items: + - description: External reference clock (38.4 MHz) + - description: CMU_MFD NOC clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: noc + required: - compatible - "#clock-cells" diff --git a/include/dt-bindings/clock/samsung,exynosautov920.h b/include/d= t-bindings/clock/samsung,exynosautov920.h index 970d05167fc6..06dec27a8c77 100644 --- a/include/dt-bindings/clock/samsung,exynosautov920.h +++ b/include/dt-bindings/clock/samsung,exynosautov920.h @@ -305,4 +305,8 @@ #define CLK_MOUT_MFC_WFD_USER 2 #define CLK_DOUT_MFC_NOCP 3 =20 +/* CMU_MFD */ +#define CLK_MOUT_MFD_NOC_USER 1 +#define CLK_DOUT_MFD_NOCP 2 + #endif /* _DT_BINDINGS_CLOCK_EXYNOSAUTOV920_H */ --=20 2.34.1 From nobody Tue Dec 2 02:20:16 2025 Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3428A3559F5 for ; 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Wed, 19 Nov 2025 11:39:32 +0000 (GMT) Received: from epcas5p4.samsung.com (unknown [182.195.38.88]) by epsnrtp04.localdomain (Postfix) with ESMTP id 4dBKJg5mCvz6B9m5; Wed, 19 Nov 2025 11:39:31 +0000 (GMT) Received: from epsmtip1.samsung.com (unknown [182.195.34.30]) by epcas5p1.samsung.com (KnoxPortal) with ESMTPA id 20251119113930epcas5p1116fba63f1fa2905a67e2f5f3e016c56~5ZYmhppwQ2232422324epcas5p11; Wed, 19 Nov 2025 11:39:30 +0000 (GMT) Received: from bose.samsungds.net (unknown [107.108.83.9]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20251119113928epsmtip1f2e82d66959d34db9de131b6828cf15d~5ZYkEscR_0221802218epsmtip1r; Wed, 19 Nov 2025 11:39:28 +0000 (GMT) From: Raghav Sharma To: krzk@kernel.org, s.nawrocki@samsung.com, cw00.choi@samsung.com, alim.akhtar@samsung.com, mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, conor+dt@kernel.org, sunyeal.hong@samsung.com, shin.son@samsung.com Cc: linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, chandan.vn@samsung.com, dev.tailor@samsung.com, karthik.sun@samsung.com, Raghav Sharma Subject: [PATCH 2/3] clk: samsung: exynosautov920: add clock support Date: Wed, 19 Nov 2025 17:17:43 +0530 Message-Id: <20251119114744.1914416-3-raghav.s@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251119114744.1914416-1-raghav.s@samsung.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 X-CMS-MailID: 20251119113930epcas5p1116fba63f1fa2905a67e2f5f3e016c56 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P cpgsPolicy: CPGSC10-543,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20251119113930epcas5p1116fba63f1fa2905a67e2f5f3e016c56 References: <20251119114744.1914416-1-raghav.s@samsung.com> Add support for CMU_MFD which provides clocks to MFD block, and register the required compatible and cmu_info for the same. Signed-off-by: Raghav Sharma --- drivers/clk/samsung/clk-exynosautov920.c | 40 ++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/drivers/clk/samsung/clk-exynosautov920.c b/drivers/clk/samsung= /clk-exynosautov920.c index b90b73c3518f..d0617c7fff3a 100644 --- a/drivers/clk/samsung/clk-exynosautov920.c +++ b/drivers/clk/samsung/clk-exynosautov920.c @@ -29,6 +29,7 @@ #define CLKS_NR_HSI2 (CLK_DOUT_HSI2_ETHERNET_PTP + 1) #define CLKS_NR_M2M (CLK_DOUT_M2M_NOCP + 1) #define CLKS_NR_MFC (CLK_DOUT_MFC_NOCP + 1) +#define CLKS_NR_MFD (CLK_DOUT_MFD_NOCP + 1) =20 /* ---- CMU_TOP ----------------------------------------------------------= -- */ =20 @@ -1905,6 +1906,42 @@ static const struct samsung_cmu_info mfc_cmu_info __= initconst =3D { .clk_name =3D "noc", }; =20 +/* ---- CMU_MFD --------------------------------------------------------- = */ + +/* Register Offset definitions for CMU_MFD (0x19e00000) */ +#define PLL_CON0_MUX_CLKCMU_MFD_NOC_USER 0x600 +#define CLK_CON_DIV_DIV_CLK_MFD_NOCP 0x1800 + +static const unsigned long mfd_clk_regs[] __initconst =3D { + PLL_CON0_MUX_CLKCMU_MFD_NOC_USER, + CLK_CON_DIV_DIV_CLK_MFD_NOCP, +}; + +/* List of parent clocks for Muxes in CMU_MFD */ +PNAME(mout_clkcmu_mfd_noc_user_p) =3D { "oscclk", "dout_clkcmu_mfd_noc" }; + +static const struct samsung_mux_clock mfd_mux_clks[] __initconst =3D { + MUX(CLK_MOUT_MFD_NOC_USER, "mout_clkcmu_mfd_noc_user", + mout_clkcmu_mfd_noc_user_p, PLL_CON0_MUX_CLKCMU_MFD_NOC_USER, 4, 1), +}; + +static const struct samsung_div_clock mfd_div_clks[] __initconst =3D { + DIV(CLK_DOUT_MFD_NOCP, "dout_mfd_nocp", + "mout_clkcmu_mfd_noc_user", CLK_CON_DIV_DIV_CLK_MFD_NOCP, + 0, 3), +}; + +static const struct samsung_cmu_info mfd_cmu_info __initconst =3D { + .mux_clks =3D mfd_mux_clks, + .nr_mux_clks =3D ARRAY_SIZE(mfd_mux_clks), + .div_clks =3D mfd_div_clks, + .nr_div_clks =3D ARRAY_SIZE(mfd_div_clks), + .nr_clk_ids =3D CLKS_NR_MFD, + .clk_regs =3D mfd_clk_regs, + .nr_clk_regs =3D ARRAY_SIZE(mfd_clk_regs), + .clk_name =3D "noc", +}; + static int __init exynosautov920_cmu_probe(struct platform_device *pdev) { const struct samsung_cmu_info *info; @@ -1941,6 +1978,9 @@ static const struct of_device_id exynosautov920_cmu_o= f_match[] =3D { }, { .compatible =3D "samsung,exynosautov920-cmu-mfc", .data =3D &mfc_cmu_info, + }, { + .compatible =3D "samsung,exynosautov920-cmu-mfd", + .data =3D &mfd_cmu_info, }, { } }; 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Wed, 19 Nov 2025 11:39:31 +0000 (GMT) From: Raghav Sharma To: krzk@kernel.org, s.nawrocki@samsung.com, cw00.choi@samsung.com, alim.akhtar@samsung.com, mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, conor+dt@kernel.org, sunyeal.hong@samsung.com, shin.son@samsung.com Cc: linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, chandan.vn@samsung.com, dev.tailor@samsung.com, karthik.sun@samsung.com, Raghav Sharma Subject: [PATCH 3/3] arm64: dts: exynosautov920: add CMU_MFD clock DT nodes Date: Wed, 19 Nov 2025 17:17:44 +0530 Message-Id: <20251119114744.1914416-4-raghav.s@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251119114744.1914416-1-raghav.s@samsung.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 X-CMS-MailID: 20251119113935epcas5p33c4cac5a961ce334bde5988ef74b09ed X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P cpgsPolicy: CPGSC10-543,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20251119113935epcas5p33c4cac5a961ce334bde5988ef74b09ed References: <20251119114744.1914416-1-raghav.s@samsung.com> Add required dt node for cmu_mfd block, which provides clocks for MFD IP Signed-off-by: Raghav Sharma --- arch/arm64/boot/dts/exynos/exynosautov920.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/bo= ot/dts/exynos/exynosautov920.dtsi index 6ee74d260776..02bf2ca52fdc 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi +++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi @@ -1462,6 +1462,17 @@ cmu_mfc: clock-controller@19c00000 { "wfd"; }; =20 + cmu_mfd: clock-controller@19e00000 { + compatible =3D "samsung,exynosautov920-cmu-mfd"; + reg =3D <0x19e00000 0x8000>; + #clock-cells =3D <1>; + + clocks =3D <&xtcxo>, + <&cmu_top DOUT_CLKCMU_MFD_NOC>; + clock-names =3D "oscclk", + "noc"; + }; + pinctrl_aud: pinctrl@1a460000 { compatible =3D "samsung,exynosautov920-pinctrl"; reg =3D <0x1a460000 0x10000>; --=20 2.34.1