From patchwork Mon Mar 4 15:35:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Richard X-Patchwork-Id: 13580902 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 BA082C54E49 for ; Mon, 4 Mar 2024 16:50:19 +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:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=a1xK2hJ4ydFGJa2WI17/mb5lCfcpfMy8et+D21M5bcM=; b=HK0b1+gzzH1e74 JQJMt+lJUiy0B/+9ILaLvwngevJWiYP5Nbt0ueynpwf7E91w2Crc8rpH9DoBSu0GbrwBF6+34NYtj L4f5TIJYkGbb2RzVPg0VyulHjWNl+jURj8A3UtN6fyxp++58+BxBUtOzvYhscZPqIcH3Ue7M2MiRk OxnjJ354ThOo8LSQT00qmdW9GbVJy2R6Z6F1vzPAnxFaaQ+7IL70gI3bmoX1ebSWbNl6nipf5zdhY OtXSClIheKqvrwMphkd6i1fw97cVzXH5EbJep62LsH6BwDqtLimoI63AV3D4UwbmfkQ7Ssj9OJlgE 1zp1qm7G1dJiEB6XklKg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rhBW7-00000009tWx-13hs; Mon, 04 Mar 2024 16:50:19 +0000 Received: from relay8-d.mail.gandi.net ([2001:4b98:dc4:8::228]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rhAMa-00000009cTV-1OHY; Mon, 04 Mar 2024 15:36:30 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id B7D041BF20F; Mon, 4 Mar 2024 15:36:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1709566582; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=atrvTInBTa9ftnt4eeX7cpQDhxNmTdh+W88IDH8sTxw=; b=X03KZaMnWcCRGT68bktpQfrNroVp3VtpQkl5woOBUaf3UYJV1shpZHNcYvQYTA1JqhAmQ3 uHVpfl7dR/RzKXB90qOYy2fe1QyCoQVQNf8kL0Honv54htsH0aofSW34InidaoLQJisVB/ xSIEd/+t+dW5Dppc56fC+M4MR74fQMXaPVgXGAhpKIymZsbUpbAGhZP44IrOFIzslfnb8B r1y/7Rmsm9xqfTj7Ig5mobitM/gBV4MF1X2p3ERVOXTd4cmgLXuzwO73X8G6mIn50pI+RO noSKKK9vjPwnKJBsxo6ot75ctGaiKYBtWx85UVqvpQ++r3AQ6DvyMy5KQtGQ+A== From: Thomas Richard Date: Mon, 04 Mar 2024 16:35:50 +0100 Subject: [PATCH v4 07/18] phy: ti: phy-j721e-wiz: split wiz_clock_init() function MIME-Version: 1.0 Message-Id: <20240102-j7200-pcie-s2r-v4-7-6f1f53390c85@bootlin.com> References: <20240102-j7200-pcie-s2r-v4-0-6f1f53390c85@bootlin.com> In-Reply-To: <20240102-j7200-pcie-s2r-v4-0-6f1f53390c85@bootlin.com> To: Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Tony Lindgren , Haojian Zhuang , Vignesh R , Aaro Koskinen , Janusz Krzysztofik , Andi Shyti , Peter Rosin , Vinod Koul , Kishon Vijay Abraham I , Philipp Zabel , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Rob Herring , Bjorn Helgaas Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org, linux-phy@lists.infradead.org, linux-pci@vger.kernel.org, gregory.clement@bootlin.com, theo.lebrun@bootlin.com, thomas.petazzoni@bootlin.com, u-kumar1@ti.com, Thomas Richard X-Mailer: b4 0.12.0 X-GND-Sasl: thomas.richard@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240304_073624_976290_CEAAAF42 X-CRM114-Status: GOOD ( 15.17 ) 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 The wiz_clock_init() function mixes probe and hardware configuration. Rename the wiz_clock_init() to wiz_clock_probe() and move the hardware configuration part in a new function named wiz_clock_init(). This hardware configuration sequence must be called during the resume stage of the driver. Signed-off-by: Thomas Richard --- drivers/phy/ti/phy-j721e-wiz.c | 67 ++++++++++++++++++++++++------------------ 1 file changed, 38 insertions(+), 29 deletions(-) diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c index 5fea4df9404e..0e3cb1ed5a52 100644 --- a/drivers/phy/ti/phy-j721e-wiz.c +++ b/drivers/phy/ti/phy-j721e-wiz.c @@ -1076,26 +1076,12 @@ static int wiz_clock_register(struct wiz *wiz) return ret; } -static int wiz_clock_init(struct wiz *wiz, struct device_node *node) +static void wiz_clock_init(struct wiz *wiz) { - const struct wiz_clk_mux_sel *clk_mux_sel = wiz->clk_mux_sel; - struct device *dev = wiz->dev; - struct device_node *clk_node; - const char *node_name; unsigned long rate; - struct clk *clk; - int ret; - int i; - - clk = devm_clk_get(dev, "core_ref_clk"); - if (IS_ERR(clk)) - return dev_err_probe(dev, PTR_ERR(clk), - "core_ref_clk clock not found\n"); - wiz->input_clks[WIZ_CORE_REFCLK] = clk; - - rate = clk_get_rate(clk); - if (rate >= 100000000) + rate = clk_get_rate(wiz->input_clks[WIZ_CORE_REFCLK]); + if (rate >= REF_CLK_100MHZ) regmap_field_write(wiz->pma_cmn_refclk_int_mode, 0x1); else regmap_field_write(wiz->pma_cmn_refclk_int_mode, 0x3); @@ -1119,6 +1105,39 @@ static int wiz_clock_init(struct wiz *wiz, struct device_node *node) break; } + if (wiz->input_clks[WIZ_CORE_REFCLK1]) { + rate = clk_get_rate(wiz->input_clks[WIZ_CORE_REFCLK1]); + if (rate >= REF_CLK_100MHZ) + regmap_field_write(wiz->pma_cmn_refclk1_int_mode, 0x1); + else + regmap_field_write(wiz->pma_cmn_refclk1_int_mode, 0x3); + + } + + rate = clk_get_rate(wiz->input_clks[WIZ_EXT_REFCLK]); + if (rate >= REF_CLK_100MHZ) + regmap_field_write(wiz->pma_cmn_refclk_mode, 0x0); + else + regmap_field_write(wiz->pma_cmn_refclk_mode, 0x2); +} + +static int wiz_clock_probe(struct wiz *wiz, struct device_node *node) +{ + const struct wiz_clk_mux_sel *clk_mux_sel = wiz->clk_mux_sel; + struct device *dev = wiz->dev; + struct device_node *clk_node; + const char *node_name; + struct clk *clk; + int ret; + int i; + + clk = devm_clk_get(dev, "core_ref_clk"); + if (IS_ERR(clk)) + return dev_err_probe(dev, PTR_ERR(clk), + "core_ref_clk clock not found\n"); + + wiz->input_clks[WIZ_CORE_REFCLK] = clk; + if (wiz->data->pma_cmn_refclk1_int_mode) { clk = devm_clk_get(dev, "core_ref1_clk"); if (IS_ERR(clk)) @@ -1126,12 +1145,6 @@ static int wiz_clock_init(struct wiz *wiz, struct device_node *node) "core_ref1_clk clock not found\n"); wiz->input_clks[WIZ_CORE_REFCLK1] = clk; - - rate = clk_get_rate(clk); - if (rate >= 100000000) - regmap_field_write(wiz->pma_cmn_refclk1_int_mode, 0x1); - else - regmap_field_write(wiz->pma_cmn_refclk1_int_mode, 0x3); } clk = devm_clk_get(dev, "ext_ref_clk"); @@ -1141,11 +1154,7 @@ static int wiz_clock_init(struct wiz *wiz, struct device_node *node) wiz->input_clks[WIZ_EXT_REFCLK] = clk; - rate = clk_get_rate(clk); - if (rate >= 100000000) - regmap_field_write(wiz->pma_cmn_refclk_mode, 0x0); - else - regmap_field_write(wiz->pma_cmn_refclk_mode, 0x2); + wiz_clock_init(wiz); switch (wiz->type) { case AM64_WIZ_10G: @@ -1589,7 +1598,7 @@ static int wiz_probe(struct platform_device *pdev) goto err_get_sync; } - ret = wiz_clock_init(wiz, node); + ret = wiz_clock_probe(wiz, node); if (ret < 0) { dev_warn(dev, "Failed to initialize clocks\n"); goto err_get_sync;