From patchwork Tue Jul 5 06:57:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kavyasree Kotagiri X-Patchwork-Id: 12905977 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5B7B0C43334 for ; Tue, 5 Jul 2022 07:00:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nbUs8JhAc3am8twnG/ah4ZZM1jYAaqiSWPUDSI1GdPg=; b=g+fk0CV+1Zf+m3 bSI6efJqbSh2FyUzcPot5j0B1njLheHA4J/FfBa71aurY8TQAyX+vj+LlF6d1rNIVJdCoW+J6/rqj hLmgTUQgQMqVQq3flm0KvpZbmUR89Mhexhkn99eXiS5VxbWtuLzgWybSGBBX662Dt2R9upyUqSWHZ wmOc+0HOiaGkn68i9eZjZiNvaaCVmWMc3TDsNAUpSKRrOQIIQvTpZQBCLG+86O9MyIg4ld+g65eXp H3jqu6Hl5YKksYZQggeCOU2EZyXZo/XC9g0SEOJJ8r/r0ao5GTTn3ZVKnoHH18pPLPey6CME+d/aL X3PvCr4qlGrVWuVrkDEA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8cWf-00FHje-2v; Tue, 05 Jul 2022 06:59:13 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8cVo-00FGwy-8v for linux-arm-kernel@lists.infradead.org; Tue, 05 Jul 2022 06:58:21 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1657004299; x=1688540299; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VkEQlmvh2BIE78NCfcXTBmqm8BrRNRSbLJGqVTHxzwA=; b=QIafgtOquuOjG139FMhjBPlTzuJKSCiHpwIzjUBR7LnGytJiFKApwXcZ 3hbl6qnchwTFWClCuADFC6cre7eA87UDN2Ag/ALJdGHaIlKjGWVBjJzTp Eh4zOda9zfOJ34MEeNTEr/xK8knpCForbysPy40eN6KCIxPeDyzn9PTft ZLlA+iz2ShymXl8QDU9a53bdk+pMQ2QXwfuO0YxifxyVvkB+JtHQWcOrR 8aqJ5fd5e3rZb1i3hHXRrEqJE2ILSQKI7VP0REiRFhciFBKJjOIAuZ0YF B0xFH8z7VCSYUuQ37uu/G6w5BNszmU/rLnhZrPyEVo7lDEaf0O08CvBHT Q==; X-IronPort-AV: E=Sophos;i="5.92,245,1650956400"; d="scan'208";a="166371625" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 04 Jul 2022 23:58:18 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 4 Jul 2022 23:58:18 -0700 Received: from kavya.microchip.com (10.10.115.15) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 4 Jul 2022 23:58:14 -0700 From: Kavyasree Kotagiri To: , , , , , CC: , , , , "Krzysztof Kozlowski" Subject: [PATCH v6 2/3] dt-bindings: mfd: atmel,flexcom: Add new compatible string for lan966x Date: Tue, 5 Jul 2022 04:57:57 -0200 Message-ID: <20220705065758.17051-3-kavyasree.kotagiri@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220705065758.17051-1-kavyasree.kotagiri@microchip.com> References: <20220705065758.17051-1-kavyasree.kotagiri@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220704_235820_418083_D747A325 X-CRM114-Status: GOOD ( 10.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org LAN966x SoC flexcoms has two optional I/O lines. Namely, CS0 and CS1 in flexcom SPI mode. CTS and RTS in flexcom USART mode. These pins can be mapped to lan966x FLEXCOM_SHARED[0-20] pins and usage depends on functions being configured. Signed-off-by: Kavyasree Kotagiri Reviewed-by: Krzysztof Kozlowski --- v5 -> v6: - Removed spi node from flx3 example. v4 -> v5: - Fixed indentations and dt-schema errors. - No errors seen with 'make dt_binding_check'. v3 -> v4: - Added else condition to allOf:if:then. v2 -> v3: - Add reg property of lan966x missed in v2. v1 -> v2: - Use allOf:if:then for lan966x dt properties .../bindings/mfd/atmel,flexcom.yaml | 63 ++++++++++++++++++- 1 file changed, 62 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mfd/atmel,flexcom.yaml b/Documentation/devicetree/bindings/mfd/atmel,flexcom.yaml index f577b8d8e1ea..f90973ffa472 100644 --- a/Documentation/devicetree/bindings/mfd/atmel,flexcom.yaml +++ b/Documentation/devicetree/bindings/mfd/atmel,flexcom.yaml @@ -18,9 +18,11 @@ properties: compatible: enum: - atmel,sama5d2-flexcom + - microchip,lan966x-flexcom reg: - maxItems: 1 + minItems: 1 + maxItems: 2 clocks: maxItems: 1 @@ -47,6 +49,27 @@ properties: $ref: /schemas/types.yaml#/definitions/uint32 enum: [1, 2, 3] + microchip,flx-shrd-pins: + description: Specify the Flexcom shared pins to be used for flexcom + chip-selects. + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + maxItems: 2 + items: + minimum: 0 + maximum: 20 + + microchip,flx-cs: + description: Flexcom chip selects. Here, value of '0' represents "cts" line + of flexcom USART or "cs0" line of flexcom SPI and value of '1' represents + "rts" line of flexcom USART or "cs1" line of flexcom SPI. + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + maxItems: 2 + items: + minimum: 0 + maximum: 1 + required: - compatible - reg @@ -56,6 +79,31 @@ required: - ranges - atmel,flexcom-mode +allOf: + - if: + properties: + compatible: + contains: + const: microchip,lan966x-flexcom + + then: + properties: + reg: + items: + - description: Flexcom base registers map + - description: Flexcom shared registers map + required: + - microchip,flx-shrd-pins + - microchip,flx-cs + + else: + properties: + reg: + items: + - description: Flexcom base registers map + microchip,flx-shrd-pins: false + microchip,flx-cs: false + additionalProperties: false examples: @@ -69,4 +117,17 @@ examples: ranges = <0x0 0xf8034000 0x800>; atmel,flexcom-mode = <2>; }; + - | + #include + + flx3: flexcom@e0064000 { + compatible = "microchip,lan966x-flexcom"; + reg = <0xe0064000 0x100>, + <0xe2004180 0x8>; + clocks = <&flx0_clk>; + ranges = <0x0 0xe0040000 0x800>; + atmel,flexcom-mode = <2>; + microchip,flx-shrd-pins = <9>; + microchip,flx-cs = <0>; + }; ...