From patchwork Wed May 19 10:41:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 12266889 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01675C433B4 for ; Wed, 19 May 2021 10:44:13 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C1B9C6135B for ; 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Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1ljJen-00FMUF-Q1; Wed, 19 May 2021 10:42:31 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5048711B3; Wed, 19 May 2021 03:42:27 -0700 (PDT) Received: from localhost.localdomain (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EFF833F719; Wed, 19 May 2021 03:42:24 -0700 (PDT) From: Andre Przywara To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: Rob Herring , Icenowy Zheng , Samuel Holland , Ondrej Jirman , linux-arm-kernel@lists.infradead.org, linux-sunxi@googlegroups.com, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Kishon Vijay Abraham I , Vinod Koul , linux-phy@lists.infradead.org, linux-usb@vger.kernel.org Subject: [PATCH v6 08/17] dt-bindings: usb: Add H616 compatible string Date: Wed, 19 May 2021 11:41:43 +0100 Message-Id: <20210519104152.21119-9-andre.przywara@arm.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20210519104152.21119-1-andre.przywara@arm.com> References: <20210519104152.21119-1-andre.przywara@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210519_034229_905469_F830C042 X-CRM114-Status: GOOD ( 10.11 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org The H616 has four PHYs as the H3, along with their respective clock gates and resets, so the property description is identical. However the PHYs itself need some special bits, so we need a new compatible string for it. Signed-off-by: Andre Przywara Acked-by: Rob Herring --- .../devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml index f80431060803..e288450e0844 100644 --- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml +++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml @@ -15,7 +15,9 @@ properties: const: 1 compatible: - const: allwinner,sun8i-h3-usb-phy + enum: + - allwinner,sun8i-h3-usb-phy + - allwinner,sun50i-h616-usb-phy reg: items: From patchwork Wed May 19 10:41:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 12266891 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 866A9C433B4 for ; Wed, 19 May 2021 10:44:50 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0BE356124C for ; Wed, 19 May 2021 10:44:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0BE356124C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:MIME-Version:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id: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=G3THx9KGFpWEQzIMiJwIRR08e8jfNGy1nxpw/kVj8oE=; b=inMFKuDpTtsuUz8J99vKmtprMn /7j2Al45iMGuOndejlhgLqS91tM61ZipIjdEzRdvkDPCR6mRABWTedeFJ6qfZgKtkaOmDdzkoaMS8 9GyCeCI7ws/rKQUs4wzgFhR9CQiibEQ/ho5v52gYpOeKHHT89C9yGCTKw0xxzC85EbZyCLDoZXz7C YEL1nmgcLlrLwQlrd4rwW988QTRLC/DeD7WNzVqdX+oFFIroN/MJQ0qwi4w19jJ+iu7rre5qgbw/D rzN6GDU94ucECSPz6ZsGWXfIpVkETslYdhjj5mMWEuq25EIZij21NzNh74NOzySyQTqJZwA9Dt/50 OzlHT2zA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1ljJh2-003d4n-Ap; Wed, 19 May 2021 10:44:48 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1ljJet-003cHX-Mm; Wed, 19 May 2021 10:42:35 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description; bh=iTL0MeHjRQVNipCVn9jmA/CYSnCOQ8VIZPYAp3RpbKM=; b=uSzJT5dw9TeTSYGIeonCTXIb4Y h7MxiRlU3vPuxv2PhgvIjGuxXnvjvQIlgAb4+TsAh7S+AWSJ0nkUxHEDotlyRRWzXYcbJuRsZG1mC XyLaLrALlqoVg8Z0ojSVuchJ+Th8yzjP9TRXdr4aZl3wu14oomwGHxHXyNlXjW2t5QKGRqOc/R+08 i2SRE2U3X4mNpRjXBLKP+juqbvs8HfrCW8xYBRmIGLZMPV8CXa+hRo7e1ioyXPanukgMJJ6u8J9nt gMtQ/PsKuAc80R9Dm+4vAJt6/itM4Qvj1cWPQPYiVdrbfemZYu+ja2cuiS8lMS5stM8R4x0vKN0to qQCB+Vtw==; Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1ljJeq-00FMV0-SY; Wed, 19 May 2021 10:42:34 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1AFF11424; Wed, 19 May 2021 03:42:32 -0700 (PDT) Received: from localhost.localdomain (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D8C513F719; Wed, 19 May 2021 03:42:29 -0700 (PDT) From: Andre Przywara To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: Rob Herring , Icenowy Zheng , Samuel Holland , Ondrej Jirman , linux-arm-kernel@lists.infradead.org, linux-sunxi@googlegroups.com, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Kishon Vijay Abraham I , Vinod Koul , linux-phy@lists.infradead.org, linux-usb@vger.kernel.org Subject: [PATCH v6 10/17] phy: sun4i-usb: Rework HCI PHY (aka. "pmu_unk1") handling Date: Wed, 19 May 2021 11:41:45 +0100 Message-Id: <20210519104152.21119-11-andre.przywara@arm.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20210519104152.21119-1-andre.przywara@arm.com> References: <20210519104152.21119-1-andre.przywara@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210519_034233_034482_1236B066 X-CRM114-Status: GOOD ( 15.02 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org As Icenowy pointed out, newer manuals (starting with H6) actually document the register block at offset 0x800 as "HCI controller and PHY interface", also describe the bits in our "PMU_UNK1" register. Let's put proper names to those "unknown" variables and symbols. While we are at it, generalise the existing code by allowing a bitmap of bits to clear and set, to cover newer SoCs: The A100 and H616 use a different bit for the SIDDQ control. Signed-off-by: Andre Przywara --- drivers/phy/allwinner/phy-sun4i-usb.c | 30 ++++++++++++--------------- 1 file changed, 13 insertions(+), 17 deletions(-) diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index 788dd5cdbb7d..142f4cafdc78 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -43,7 +43,7 @@ #define REG_PHYCTL_A33 0x10 #define REG_PHY_OTGCTL 0x20 -#define REG_PMU_UNK1 0x10 +#define REG_HCI_PHY_CTL 0x10 #define PHYCTL_DATA BIT(7) @@ -82,6 +82,7 @@ /* A83T specific control bits for PHY0 */ #define PHY_CTL_VBUSVLDEXT BIT(5) #define PHY_CTL_SIDDQ BIT(3) +#define PHY_CTL_H3_SIDDQ BIT(1) /* A83T specific control bits for PHY2 HSIC */ #define SUNXI_EHCI_HS_FORCE BIT(20) @@ -115,9 +116,9 @@ struct sun4i_usb_phy_cfg { int hsic_index; enum sun4i_usb_phy_type type; u32 disc_thresh; + u32 hci_phy_ctl_clear; u8 phyctl_offset; bool dedicated_clocks; - bool enable_pmu_unk1; bool phy0_dual_route; int missing_phys; }; @@ -288,6 +289,12 @@ static int sun4i_usb_phy_init(struct phy *_phy) return ret; } + if (phy->pmu && data->cfg->hci_phy_ctl_clear) { + val = readl(phy->pmu + REG_HCI_PHY_CTL); + val &= ~data->cfg->hci_phy_ctl_clear; + writel(val, phy->pmu + REG_HCI_PHY_CTL); + } + if (data->cfg->type == sun8i_a83t_phy || data->cfg->type == sun50i_h6_phy) { if (phy->index == 0) { @@ -297,11 +304,6 @@ static int sun4i_usb_phy_init(struct phy *_phy) writel(val, data->base + data->cfg->phyctl_offset); } } else { - if (phy->pmu && data->cfg->enable_pmu_unk1) { - val = readl(phy->pmu + REG_PMU_UNK1); - writel(val & ~2, phy->pmu + REG_PMU_UNK1); - } - /* Enable USB 45 Ohm resistor calibration */ if (phy->index == 0) sun4i_usb_phy_write(phy, PHY_RES45_CAL_EN, 0x01, 1); @@ -863,7 +865,6 @@ static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = { @@ -872,7 +873,6 @@ static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = { .disc_thresh = 2, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = { @@ -881,7 +881,6 @@ static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = true, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = { @@ -890,7 +889,6 @@ static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = { .disc_thresh = 2, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = { @@ -899,7 +897,6 @@ static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = true, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = { @@ -908,7 +905,6 @@ static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_a83t_cfg = { @@ -925,7 +921,7 @@ static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = true, + .hci_phy_ctl_clear = PHY_CTL_H3_SIDDQ, .phy0_dual_route = true, }; @@ -935,7 +931,7 @@ static const struct sun4i_usb_phy_cfg sun8i_r40_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = true, + .hci_phy_ctl_clear = PHY_CTL_H3_SIDDQ, .phy0_dual_route = true, }; @@ -945,7 +941,7 @@ static const struct sun4i_usb_phy_cfg sun8i_v3s_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = true, + .hci_phy_ctl_clear = PHY_CTL_H3_SIDDQ, .phy0_dual_route = true, }; @@ -955,7 +951,7 @@ static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = true, + .hci_phy_ctl_clear = PHY_CTL_H3_SIDDQ, .phy0_dual_route = true, }; From patchwork Wed May 19 10:41:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 12266893 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F1E8C43460 for ; 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bh=T199OeuWzUOPej12/uy1V4u10un4dhco7/ls2jGV9Os=; b=oFu5Dqmq0EhkXqB8a9drl9mkZ9 TDYgGdl9mALnpglHN89HkHGaTjRb4Y5iGlCrfaQ2y9uedtD3cxKSti0sAj2o4GorDlk1hwlNmtT7n j2Km+i3auMTvk+mJmVSQxZ6yeuZvC6fMESgTpn/1Wp/tHZxSojn2O2Nl1qCjt+tWmIPUbWMHXg9kt 2zsIXBfG1xG0SEPoggru1lCAYo+0eGoN6lNfD6ylkzk1kwVffL3qhuHNGVQojhMuFq16wcQKKDr9e d3VXXyNGUqX9r/toFbWMPH1Qjq4GA+XONsOanTzEEAcAhEt1STpHkoUjaV/Zk44VDg08yy/L0D5Wh TDSw+AUw==; Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1ljJeu-00FMVi-9y; Wed, 19 May 2021 10:42:37 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A65FF11B3; Wed, 19 May 2021 03:42:34 -0700 (PDT) Received: from localhost.localdomain (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 52BF53F719; Wed, 19 May 2021 03:42:32 -0700 (PDT) From: Andre Przywara To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: Rob Herring , Icenowy Zheng , Samuel Holland , Ondrej Jirman , linux-arm-kernel@lists.infradead.org, linux-sunxi@googlegroups.com, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Kishon Vijay Abraham I , Vinod Koul , linux-phy@lists.infradead.org, linux-usb@vger.kernel.org, Philipp Zabel Subject: [PATCH v6 11/17] phy: sun4i-usb: Allow reset line to be shared Date: Wed, 19 May 2021 11:41:46 +0100 Message-Id: <20210519104152.21119-12-andre.przywara@arm.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20210519104152.21119-1-andre.przywara@arm.com> References: <20210519104152.21119-1-andre.przywara@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210519_034236_408793_023C1A1A X-CRM114-Status: GOOD ( 13.05 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org The USB HCIs (and PHYs?) in Allwinner's newer generation SoCs (H616) rely on the reset line of USB PHY 2 to be de-asserted, even when only one of the other PHYs is actually in use. To make those ports work, we include this reset line in the HCIs' resets property, which requires this line to be shareable. Change the call to allocate the reset line to mark it as shared, to enable the other ports on those SoCs. Signed-off-by: Andre Przywara --- drivers/phy/allwinner/phy-sun4i-usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index 142f4cafdc78..126ef74d013c 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -788,7 +788,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) } snprintf(name, sizeof(name), "usb%d_reset", i); - phy->reset = devm_reset_control_get(dev, name); + phy->reset = devm_reset_control_get_shared(dev, name); if (IS_ERR(phy->reset)) { dev_err(dev, "failed to get reset %s\n", name); return PTR_ERR(phy->reset); From patchwork Wed May 19 10:41:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 12266895 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 660C2C433ED for ; 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bh=lhhnwZRFPlTRKuMQM8+8bNe1XCKa3I3YGdyoM5r18Hs=; b=ZDW94uXA//m4p/RolhCrK21lXE k+lLF871DsBS28wRVJMh5oT6TYsYbvPs/BR/J6YkXE2yuvpQ9073pQgbPTs6I6RvK0ZN9SeGeawOF gq3Oo5O/Xb7FY1V17NYd2Ldw0PsZBSlihvsKY7hff61uy/vssBMwrIU2lnrujgYJFsap06cdbIx+i I2L3NoOo0CTbl5Ydq95rjAhylCsOqNqctwz1LWLrdWxsv6oUuc7byO1wQwcC1RsgTEv+1lSNkU2Al WXNaXKdj/f0MOnRgFSX/Ys2EL+1cPcmv5Ns1zCtESHxkG9S7gmvjUmGdWLEOKQgZTNc2aCjzfDQ9k 16M0WUfg==; Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1ljJev-00FMW2-Ki; Wed, 19 May 2021 10:42:39 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2069914FF; Wed, 19 May 2021 03:42:37 -0700 (PDT) Received: from localhost.localdomain (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DE4B43F719; Wed, 19 May 2021 03:42:34 -0700 (PDT) From: Andre Przywara To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: Rob Herring , Icenowy Zheng , Samuel Holland , Ondrej Jirman , linux-arm-kernel@lists.infradead.org, linux-sunxi@googlegroups.com, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Kishon Vijay Abraham I , Vinod Koul , linux-phy@lists.infradead.org, linux-usb@vger.kernel.org Subject: [PATCH v6 12/17] phy: sun4i-usb: Introduce port2 SIDDQ quirk Date: Wed, 19 May 2021 11:41:47 +0100 Message-Id: <20210519104152.21119-13-andre.przywara@arm.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20210519104152.21119-1-andre.przywara@arm.com> References: <20210519104152.21119-1-andre.przywara@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210519_034237_743770_C3D7156B X-CRM114-Status: GOOD ( 14.71 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org At least the Allwinner H616 SoC requires a weird quirk to make most USB PHYs work: Only port2 works out of the box, but all other ports need some help from this port2 to work correctly: The CLK_BUS_PHY2 and RST_USB_PHY2 clock and reset need to be enabled, and the SIDDQ bit in the PMU PHY control register needs to be cleared. For this register to be accessible, CLK_BUS_ECHI2 needs to be ungated. Don't ask .... Instead of disguising this as some generic feature, do exactly that in our PHY init: If the quirk bit is set, and we initialise a PHY other than PHY2, ungate this one special clock, and clear the SIDDQ bit. We can pull in the other required clocks via the DT. Signed-off-by: Andre Przywara --- drivers/phy/allwinner/phy-sun4i-usb.c | 29 +++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index 126ef74d013c..ed7b9cc5a424 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -120,6 +120,7 @@ struct sun4i_usb_phy_cfg { u8 phyctl_offset; bool dedicated_clocks; bool phy0_dual_route; + bool needs_phy2_siddq; int missing_phys; }; @@ -331,6 +332,27 @@ static int sun4i_usb_phy_init(struct phy *_phy) queue_delayed_work(system_wq, &data->detect, 0); } + /* Some PHYs on some SoCs need the help of PHY2 to work. */ + if (data->cfg->needs_phy2_siddq && phy->index != 2) { + struct sun4i_usb_phy *phy2 = &data->phys[2]; + + /* + * This extra clock is just needed to access the + * REG_HCI_PHY_CTL PMU register for PHY2. + */ + ret = clk_prepare_enable(phy2->clk2); + if (ret) + return ret; + + if (phy2->pmu && data->cfg->hci_phy_ctl_clear) { + val = readl(phy2->pmu + REG_HCI_PHY_CTL); + val &= ~data->cfg->hci_phy_ctl_clear; + writel(val, phy2->pmu + REG_HCI_PHY_CTL); + } + + clk_disable_unprepare(phy->clk2); + } + return 0; } @@ -785,6 +807,13 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) dev_err(dev, "failed to get clock %s\n", name); return PTR_ERR(phy->clk2); } + } else { + snprintf(name, sizeof(name), "pmu%d_clk", i); + phy->clk2 = devm_clk_get_optional(dev, name); + if (IS_ERR(phy->clk2)) { + dev_err(dev, "failed to get clock %s\n", name); + return PTR_ERR(phy->clk2); + } } snprintf(name, sizeof(name), "usb%d_reset", i); From patchwork Wed May 19 10:41:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 12266897 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9257FC433ED for ; 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bh=l75WdoDXauDex2sXZZiUaZfzhyXh0AhZYA3LCCM/tMk=; b=RPKC03dPReBEadepdhFt9Y9mBd Uf/2vsym8aC0O9rmPAofFk90FNdhG4Y9byWLxesEw4vddFQKOft+TCHLG590z+wWH50TVPw1w5Z02 N/cpC+GbcH2gztl+r6Sw65y6TSXNjTExJ6ORo7SWFHMxuIXvqDHzZEtlNx/QN0aobwO1fRFZ4dhud zAaq6TkXBcpu5nGk0jk4SXPTKGM9wYOaF/lhidzlTMrfrtoiLRptJk+6p9RUnaB3osoRnSo3/PRrz 3wnY7SMeYvA5VS/e101pEvDls/bXwjBe99ksy7ab7wvd4Bqj5BVt/WepuUzbOBR5Ok3hOM/N6Kz/B xBbsWv+w==; Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1ljJey-00FMWR-Ff; Wed, 19 May 2021 10:42:41 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8E9111480; Wed, 19 May 2021 03:42:39 -0700 (PDT) Received: from localhost.localdomain (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5897E3F719; Wed, 19 May 2021 03:42:37 -0700 (PDT) From: Andre Przywara To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec Cc: Rob Herring , Icenowy Zheng , Samuel Holland , Ondrej Jirman , linux-arm-kernel@lists.infradead.org, linux-sunxi@googlegroups.com, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Kishon Vijay Abraham I , Vinod Koul , linux-phy@lists.infradead.org, linux-usb@vger.kernel.org Subject: [PATCH v6 13/17] phy: sun4i-usb: Add support for the H616 USB PHY Date: Wed, 19 May 2021 11:41:48 +0100 Message-Id: <20210519104152.21119-14-andre.przywara@arm.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20210519104152.21119-1-andre.przywara@arm.com> References: <20210519104152.21119-1-andre.przywara@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210519_034240_585497_A1EF10A1 X-CRM114-Status: GOOD ( 11.40 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org The USB PHY used in the Allwinner H616 SoC inherits some traits from its various predecessors: it has four full PHYs like the H3, needs some extra bits to be set like the H6, and puts SIDDQ on a different bit like the A100. Plus it needs this weird PHY2 quirk. Name all those properties in a new config struct and assign a new compatible name to it. Signed-off-by: Andre Przywara --- drivers/phy/allwinner/phy-sun4i-usb.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index ed7b9cc5a424..a55765ad7bad 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -994,6 +994,17 @@ static const struct sun4i_usb_phy_cfg sun50i_h6_cfg = { .missing_phys = BIT(1) | BIT(2), }; +static const struct sun4i_usb_phy_cfg sun50i_h616_cfg = { + .num_phys = 4, + .type = sun50i_h6_phy, + .disc_thresh = 3, + .phyctl_offset = REG_PHYCTL_A33, + .dedicated_clocks = true, + .phy0_dual_route = true, + .hci_phy_ctl_clear = PHY_CTL_SIDDQ, + .needs_phy2_siddq = true, +}; + static const struct of_device_id sun4i_usb_phy_of_match[] = { { .compatible = "allwinner,sun4i-a10-usb-phy", .data = &sun4i_a10_cfg }, { .compatible = "allwinner,sun5i-a13-usb-phy", .data = &sun5i_a13_cfg }, @@ -1008,6 +1019,7 @@ static const struct of_device_id sun4i_usb_phy_of_match[] = { { .compatible = "allwinner,sun50i-a64-usb-phy", .data = &sun50i_a64_cfg}, { .compatible = "allwinner,sun50i-h6-usb-phy", .data = &sun50i_h6_cfg }, + { .compatible = "allwinner,sun50i-h616-usb-phy", .data = &sun50i_h616_cfg }, { }, }; MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match);