From patchwork Mon Nov 21 08:50:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 13050484 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 3F08CC352A1 for ; Mon, 21 Nov 2022 08:52:13 +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=wMqJnII0d6A06RlZ6skOwCyXhE6dm7Ro0sf4mt28VUw=; b=QgbDi0YXUEpaFt gWBYs32+x7ODaR9Dvk5KQXqpE7ThTiQSCR6eRkZNZwS0ieDGgjQ5baCECEAj5247DWgnoAGwazDc0 JfflXnW1xaZXSfd7dYIC5y/X6NM8H2UOZ081SG2cfGTMZj3SN5htvFf+gHf3Hod4ORuH3dhUuI8a/ LDF5SG9RG7F4coLZMK+EKBwmFGQd+iGVXls80jmrydc3pH+FzfZRng7oGkTkJNfi/D712CQ4KWuCm H0cHlQmCqke8h/tx76V1kAds4hLlUatzl92QvYnx05J+yxWSD4eSuJc6Db4Lc79Dr3z8kAFbidO/p enmxdSPOg6zRJ8pd3cOg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ox2XE-00BUnT-LB; Mon, 21 Nov 2022 08:52:12 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ox2XC-00BUio-5C for linux-phy@bombadil.infradead.org; Mon, 21 Nov 2022 08:52:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=a4io63s0SPkqlm/8z6oxORucVGIHFiv29FQ6du/kfd4=; b=abRDWDdkFDmWc4irZC7BRrfQNF b2V34id4PYD8Yh31gbZhg3ylMk+HrFlfP3I5JdTa+xppldWn64A12KEheKDel25/jMkgJUQg7lF2a g9miRh2VBstEq+i+Urfa1mS4RHQhSLWUQ5T6IIIrfaOPD5JHEFCDClDuJQNrIJrLcYTvYMuC6v8NC WNLkNFp5WrIPdTA/RcrCdxZ3dXbu6G395Ts4WE/m2DllR/oboXnRM4rTK3mPZ5rMaSbvs8Y230sxU 9fWYJ1+e0LMOS1kw/mf/FVQ63r8QJrorj2iyhu0/g4QAIUWJqnqLUOoc92IgryaWk7n9vXtccXYCS t4isBvIA==; Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by desiato.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ox2X7-0033b5-DN for linux-phy@lists.infradead.org; Mon, 21 Nov 2022 08:52:08 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8A23760F70; Mon, 21 Nov 2022 08:51:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E52E6C4FF11; Mon, 21 Nov 2022 08:51:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669020715; bh=WRo1qWVdZ75SVsnLQEiddVe0DwiPcNXnEMSF6iU/Sdo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cUcY+2pY4YgHnR3Vup7rOWmkPos2SnXGxV43i9sHwxRr8MKjyu/J/TJ9hdJfkR2WO Ef/tBlpWf6Vhz7UOLvfxqNpBsLfjK/wj3J18rKLZzItZeVCBS/22Hq26wEF6FAAOSF FWZLbl5fSdJhr6tLV11WeWkTkmSGdw8CDVcJdfTj/qtwmjpFrDU5pBo4FlaXv7aQvm rMPVmxflTdKbEIlxVd7Dhhyol5BjpeHI9JuHNVSRxy433mYfLOXjz70buuRkoZ7EQs BhqNSfPZS0vHjCZHb/mIjlSwHCoKAIT1YHhmcXqHSUb34G2VhfsjveMNPGhVEypghd fsMSk9POf038w== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1ox2WT-00088m-Hg; Mon, 21 Nov 2022 09:51:25 +0100 From: Johan Hovold To: Vinod Koul Cc: Kishon Vijay Abraham I , Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Dmitry Baryshkov , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Johan Hovold Subject: [PATCH v3 13/15] phy: qcom-qmp-combo: add support for updated sc8280xp binding Date: Mon, 21 Nov 2022 09:50:56 +0100 Message-Id: <20221121085058.31213-14-johan+linaro@kernel.org> X-Mailer: git-send-email 2.37.4 In-Reply-To: <20221121085058.31213-1-johan+linaro@kernel.org> References: <20221121085058.31213-1-johan+linaro@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221121_085205_980253_C1ED9745 X-CRM114-Status: GOOD ( 23.46 ) 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: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Add support for the new SC8280XP binding. Note that the binding does not try to describe every register subregion and instead the driver holds the corresponding offsets. Also note that (possibly) unlike on earlier platforms, the TX registers are used by both the USB and DP implementation. Reviewed-by: Dmitry Baryshkov Signed-off-by: Johan Hovold --- drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 145 ++++++++++++++++++++-- 1 file changed, 134 insertions(+), 11 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c index b82bd0a221d6..77052c66cf70 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c @@ -20,7 +20,7 @@ #include #include -#include +#include #include "phy-qcom-qmp.h" @@ -798,7 +798,23 @@ static const u8 qmp_dp_v5_voltage_swing_hbr_rbr[4][4] = { struct qmp_combo; +struct qmp_combo_offsets { + u16 com; + u16 txa; + u16 rxa; + u16 txb; + u16 rxb; + u16 usb3_serdes; + u16 usb3_pcs_misc; + u16 usb3_pcs; + u16 usb3_pcs_usb; + u16 dp_serdes; + u16 dp_dp_phy; +}; + struct qmp_phy_cfg { + const struct qmp_combo_offsets *offsets; + /* Init sequence for PHY blocks - serdes, tx, rx, pcs */ const struct qmp_phy_init_tbl *serdes_tbl; int serdes_tbl_num; @@ -959,6 +975,20 @@ static const char * const sc7180_usb3phy_reset_l[] = { "phy", }; +static const struct qmp_combo_offsets qmp_combo_offsets_v5 = { + .com = 0x0000, + .txa = 0x0400, + .rxa = 0x0600, + .txb = 0x0a00, + .rxb = 0x0c00, + .usb3_serdes = 0x1000, + .usb3_pcs_misc = 0x1200, + .usb3_pcs = 0x1400, + .usb3_pcs_usb = 0x1700, + .dp_serdes = 0x2000, + .dp_dp_phy = 0x2200, +}; + static const struct qmp_phy_cfg sc7180_usb3dpphy_cfg = { .serdes_tbl = qmp_v3_usb3_serdes_tbl, .serdes_tbl_num = ARRAY_SIZE(qmp_v3_usb3_serdes_tbl), @@ -1098,6 +1128,8 @@ static const struct qmp_phy_cfg sc8180x_usb3dpphy_cfg = { }; static const struct qmp_phy_cfg sc8280xp_usb43dpphy_cfg = { + .offsets = &qmp_combo_offsets_v5, + .serdes_tbl = sc8280xp_usb43dp_serdes_tbl, .serdes_tbl_num = ARRAY_SIZE(sc8280xp_usb43dp_serdes_tbl), .tx_tbl = sc8280xp_usb43dp_tx_tbl, @@ -1138,7 +1170,6 @@ static const struct qmp_phy_cfg sc8280xp_usb43dpphy_cfg = { .vreg_list = qmp_phy_vreg_l, .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), .regs = qmp_v4_usb3phy_regs_layout, - .pcs_usb_offset = 0x300, }; static const struct qmp_phy_cfg sm8250_usb3dpphy_cfg = { @@ -2421,6 +2452,22 @@ static int phy_dp_clks_register(struct qmp_combo *qmp, struct device_node *np) return 0; } +static struct clk_hw *qmp_combo_clk_hw_get(struct of_phandle_args *clkspec, void *data) +{ + struct qmp_combo *qmp = data; + + switch (clkspec->args[0]) { + case QMP_USB43DP_USB3_PIPE_CLK: + return &qmp->pipe_clk_fixed.hw; + case QMP_USB43DP_DP_LINK_CLK: + return &qmp->dp_link_hw; + case QMP_USB43DP_DP_VCO_DIV_CLK: + return &qmp->dp_pixel_hw; + } + + return ERR_PTR(-EINVAL); +} + static int qmp_combo_register_clocks(struct qmp_combo *qmp, struct device_node *usb_np, struct device_node *dp_np) { @@ -2434,6 +2481,15 @@ static int qmp_combo_register_clocks(struct qmp_combo *qmp, struct device_node * if (ret) return ret; + /* + * Register a single provider for bindings without child nodes. + */ + if (usb_np == qmp->dev->of_node) + return devm_of_clk_add_hw_provider(qmp->dev, qmp_combo_clk_hw_get, qmp); + + /* + * Register multiple providers for legacy bindings with child nodes. + */ ret = of_clk_add_hw_provider(usb_np, of_clk_hw_simple_get, &qmp->pipe_clk_fixed.hw); if (ret) @@ -2558,6 +2614,63 @@ static int qmp_combo_parse_dt_legacy(struct qmp_combo *qmp, struct device_node * return 0; } +static int qmp_combo_parse_dt(struct qmp_combo *qmp) +{ + struct platform_device *pdev = to_platform_device(qmp->dev); + const struct qmp_phy_cfg *cfg = qmp->cfg; + const struct qmp_combo_offsets *offs = cfg->offsets; + struct device *dev = qmp->dev; + void __iomem *base; + + if (!offs) + return -EINVAL; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + qmp->com = base + offs->com; + qmp->tx = base + offs->txa; + qmp->rx = base + offs->rxa; + qmp->tx2 = base + offs->txb; + qmp->rx2 = base + offs->rxb; + + qmp->serdes = base + offs->usb3_serdes; + qmp->pcs_misc = base + offs->usb3_pcs_misc; + qmp->pcs = base + offs->usb3_pcs; + qmp->pcs_usb = base + offs->usb3_pcs_usb; + + qmp->dp_serdes = base + offs->dp_serdes; + qmp->dp_tx = base + offs->txa; + qmp->dp_tx2 = base + offs->txb; + qmp->dp_dp_phy = base + offs->dp_dp_phy; + + qmp->pipe_clk = devm_clk_get(dev, "usb3_pipe"); + if (IS_ERR(qmp->pipe_clk)) { + return dev_err_probe(dev, PTR_ERR(qmp->pipe_clk), + "failed to get usb3_pipe clock\n"); + } + + return 0; +} + +static struct phy *qmp_combo_phy_xlate(struct device *dev, struct of_phandle_args *args) +{ + struct qmp_combo *qmp = dev_get_drvdata(dev); + + if (args->args_count == 0) + return ERR_PTR(-EINVAL); + + switch (args->args[0]) { + case QMP_USB43DP_USB3_PHY: + return qmp->usb_phy; + case QMP_USB43DP_DP_PHY: + return qmp->dp_phy; + } + + return ERR_PTR(-EINVAL); +} + static int qmp_combo_probe(struct platform_device *pdev) { struct qmp_combo *qmp; @@ -2590,17 +2703,22 @@ static int qmp_combo_probe(struct platform_device *pdev) if (ret) return ret; + /* Check for legacy binding with child nodes. */ usb_np = of_get_child_by_name(dev->of_node, "usb3-phy"); - if (!usb_np) - return -EINVAL; + if (usb_np) { + dp_np = of_get_child_by_name(dev->of_node, "dp-phy"); + if (!dp_np) { + of_node_put(usb_np); + return -EINVAL; + } - dp_np = of_get_child_by_name(dev->of_node, "dp-phy"); - if (!dp_np) { - of_node_put(usb_np); - return -EINVAL; - } + ret = qmp_combo_parse_dt_legacy(qmp, usb_np, dp_np); + } else { + usb_np = of_node_get(dev->of_node); + dp_np = of_node_get(dev->of_node); - ret = qmp_combo_parse_dt_legacy(qmp, usb_np, dp_np); + ret = qmp_combo_parse_dt(qmp); + } if (ret) goto err_node_put; @@ -2636,7 +2754,12 @@ static int qmp_combo_probe(struct platform_device *pdev) phy_set_drvdata(qmp->dp_phy, qmp); - phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + dev_set_drvdata(dev, qmp); + + if (usb_np == dev->of_node) + phy_provider = devm_of_phy_provider_register(dev, qmp_combo_phy_xlate); + else + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); of_node_put(usb_np); of_node_put(dp_np);