From patchwork Sat Aug 3 10:57:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Harry Austen X-Patchwork-Id: 13752336 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 ED474C52D6D for ; Sat, 3 Aug 2024 11:00:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:From: To:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=aFKN+b0Saw1IphsCNqgGUJBEZJNTr/Nxv82GUZruSNw=; b=t3Q7XrtJL2NZPnc+O0UIRsM8zm yz7hYfoQQOWXR8OCdzRx8cfxYaipXPsIP7MIstpniOHpgUugo2SjMi22hNalqS4zrJPtqlzd4bVeU VRYKBc9Y6RsjAg8owlk4uNT2YUpeP8iHqHdEGRC2pJPPfpHx5celK5o8XBxGHN240geznNL09zqj4 6f0F3DVtRrbZFPycO0mKkeOZ3ojez6xklOXHWEr3OlFOaTn5uQYpvs2bB5M9ss0KIDzK3fOcVixOa 2/lNyKtCFgORCH08tWoagvAPf6Wg+Jy9L3tFwmXYNL7VsQaxJnwoLIf5gbAOEZErTQYRbOCq5whj0 zMY3QFjQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1saCUN-0000000BFhK-3Yxj; Sat, 03 Aug 2024 10:59:55 +0000 Received: from mail-40131.protonmail.ch ([185.70.40.131]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1saCSa-0000000BF5W-3A94 for linux-arm-kernel@lists.infradead.org; Sat, 03 Aug 2024 10:58:06 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1722682682; x=1722941882; bh=aFKN+b0Saw1IphsCNqgGUJBEZJNTr/Nxv82GUZruSNw=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=cQYODIXK6LMhoawJWffkp2CRRaAM/HM6kgdvhmBY3FzY1cHbK55V083i8ru6Dz8Fp TQOx14BkVYWiw+ZgSGh9niJVQMFde7y6qnPObLFwIX69myfIO9BjFqWCrk2E5m6pBl jzXJz+4zueDwlBqbcslCMXm7mD2yjiUL0Fa6NKsqHqdZI5LYh1KeiyW3Z4PZ4Nbwxw rHpkcR1CcCitPvC8hfUQYhgoV9OhvzTldUDNCDgEP0DFHPfsh/BnxxJm1m8MQFnWGg B3pT5fxs4KFkdqdxCLhqHz4ZXvI65KvWYi5kmgbRqLkeMw/KYfd2glCTODuzgUbNvQ 7Bs8r/hPqCeYA== Date: Sat, 03 Aug 2024 10:57:57 +0000 To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michal Simek , Greg Kroah-Hartman From: Harry Austen Cc: Shubhrajyoti Datta , Dave Ertman , Ira Weiny , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Harry Austen Subject: [PATCH v2 2/9] clk: clocking-wizard: use newer clk_hw API Message-ID: <20240803105702.9621-3-hpausten@protonmail.com> In-Reply-To: <20240803105702.9621-1-hpausten@protonmail.com> References: <20240803105702.9621-1-hpausten@protonmail.com> Feedback-ID: 53116287:user:proton X-Pm-Message-ID: 019e6b55198fc166203181dcb7ae7b5abae111d4 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240803_035805_109846_4184C376 X-CRM114-Status: GOOD ( 13.19 ) 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 Utilise clock provider API with struct clk_hw instances instead of the consumer-side struct clk. Signed-off-by: Harry Austen --- v1 -> v2: - Move onecell data to end of struct for single allocation - Just move to clk_hw API. Move devres transition to subsequent patch drivers/clk/xilinx/clk-xlnx-clock-wizard.c | 77 +++++++++++----------- 1 file changed, 40 insertions(+), 37 deletions(-) diff --git a/drivers/clk/xilinx/clk-xlnx-clock-wizard.c b/drivers/clk/xilinx/clk-xlnx-clock-wizard.c index 0ca045849ea3e..ccaf30c2d9481 100644 --- a/drivers/clk/xilinx/clk-xlnx-clock-wizard.c +++ b/drivers/clk/xilinx/clk-xlnx-clock-wizard.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -121,26 +122,24 @@ enum clk_wzrd_int_clks { /** * struct clk_wzrd - Clock wizard private data structure * - * @clk_data: Clock data + * @clk_data: Output clock data * @nb: Notifier block * @base: Memory base * @clk_in1: Handle to input clock 'clk_in1' * @axi_clk: Handle to input clock 's_axi_aclk' * @clks_internal: Internal clocks - * @clkout: Output clocks * @speed_grade: Speed grade of the device * @suspended: Flag indicating power state of the device */ struct clk_wzrd { - struct clk_onecell_data clk_data; struct notifier_block nb; void __iomem *base; struct clk *clk_in1; struct clk *axi_clk; - struct clk *clks_internal[wzrd_clk_int_max]; - struct clk *clkout[WZRD_NUM_OUTPUTS]; + struct clk_hw *clks_internal[wzrd_clk_int_max]; unsigned int speed_grade; bool suspended; + struct clk_hw_onecell_data clk_data; }; /** @@ -765,7 +764,7 @@ static const struct clk_ops clk_wzrd_clk_divider_ops_f = { .recalc_rate = clk_wzrd_recalc_ratef, }; -static struct clk *clk_wzrd_register_divf(struct device *dev, +static struct clk_hw *clk_wzrd_register_divf(struct device *dev, const char *name, const char *parent_name, unsigned long flags, @@ -805,10 +804,10 @@ static struct clk *clk_wzrd_register_divf(struct device *dev, if (ret) return ERR_PTR(ret); - return hw->clk; + return hw; } -static struct clk *clk_wzrd_ver_register_divider(struct device *dev, +static struct clk_hw *clk_wzrd_ver_register_divider(struct device *dev, const char *name, const char *parent_name, unsigned long flags, @@ -852,10 +851,10 @@ static struct clk *clk_wzrd_ver_register_divider(struct device *dev, if (ret) return ERR_PTR(ret); - return hw->clk; + return hw; } -static struct clk *clk_wzrd_register_divider(struct device *dev, +static struct clk_hw *clk_wzrd_register_divider(struct device *dev, const char *name, const char *parent_name, unsigned long flags, @@ -898,7 +897,7 @@ static struct clk *clk_wzrd_register_divider(struct device *dev, if (ret) return ERR_PTR(ret); - return hw->clk; + return hw; } static int clk_wzrd_clk_notifier(struct notifier_block *nb, unsigned long event, @@ -978,7 +977,12 @@ static int clk_wzrd_probe(struct platform_device *pdev) int nr_outputs; int i, ret; - clk_wzrd = devm_kzalloc(&pdev->dev, sizeof(*clk_wzrd), GFP_KERNEL); + ret = of_property_read_u32(np, "xlnx,nr-outputs", &nr_outputs); + if (ret || nr_outputs > WZRD_NUM_OUTPUTS) + return -EINVAL; + + clk_wzrd = devm_kzalloc(&pdev->dev, struct_size(clk_wzrd, clk_data.hws, nr_outputs), + GFP_KERNEL); if (!clk_wzrd) return -ENOMEM; platform_set_drvdata(pdev, clk_wzrd); @@ -1016,17 +1020,13 @@ static int clk_wzrd_probe(struct platform_device *pdev) if (data) is_versal = data->is_versal; - ret = of_property_read_u32(np, "xlnx,nr-outputs", &nr_outputs); - if (ret || nr_outputs > WZRD_NUM_OUTPUTS) - return -EINVAL; - clkout_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_out0", dev_name(&pdev->dev)); if (!clkout_name) return -ENOMEM; if (is_versal) { if (nr_outputs == 1) { - clk_wzrd->clkout[0] = clk_wzrd_ver_register_divider + clk_wzrd->clk_data.hws[0] = clk_wzrd_ver_register_divider (&pdev->dev, clkout_name, __clk_get_name(clk_wzrd->clk_in1), 0, clk_wzrd->base, WZRD_CLK_CFG_REG(is_versal, 3), @@ -1059,7 +1059,7 @@ static int clk_wzrd_probe(struct platform_device *pdev) div = 64; } else { if (nr_outputs == 1) { - clk_wzrd->clkout[0] = clk_wzrd_register_divider + clk_wzrd->clk_data.hws[0] = clk_wzrd_register_divider (&pdev->dev, clkout_name, __clk_get_name(clk_wzrd->clk_in1), 0, clk_wzrd->base, WZRD_CLK_CFG_REG(is_versal, 3), @@ -1082,7 +1082,7 @@ static int clk_wzrd_probe(struct platform_device *pdev) clk_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_mul", dev_name(&pdev->dev)); if (!clk_name) return -ENOMEM; - clk_wzrd->clks_internal[wzrd_clk_mul] = clk_register_fixed_factor + clk_wzrd->clks_internal[wzrd_clk_mul] = clk_hw_register_fixed_factor (&pdev->dev, clk_name, __clk_get_name(clk_wzrd->clk_in1), 0, mult, div); @@ -1108,15 +1108,15 @@ static int clk_wzrd_probe(struct platform_device *pdev) if (!div) div = 1; - clk_mul_name = __clk_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]); + clk_mul_name = clk_hw_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]); clk_wzrd->clks_internal[wzrd_clk_mul_div] = - clk_register_fixed_factor(&pdev->dev, clk_name, - clk_mul_name, 0, 1, div); + clk_hw_register_fixed_factor(&pdev->dev, clk_name, + clk_mul_name, 0, 1, div); } else { ctrl_reg = clk_wzrd->base + WZRD_CLK_CFG_REG(is_versal, 0); - clk_wzrd->clks_internal[wzrd_clk_mul_div] = clk_register_divider + clk_wzrd->clks_internal[wzrd_clk_mul_div] = clk_hw_register_divider (&pdev->dev, clk_name, - __clk_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]), + clk_hw_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]), flags, ctrl_reg, 0, 8, CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO, &clkwzrd_lock); } @@ -1136,7 +1136,7 @@ static int clk_wzrd_probe(struct platform_device *pdev) } if (is_versal) { - clk_wzrd->clkout[i] = clk_wzrd_ver_register_divider + clk_wzrd->clk_data.hws[i] = clk_wzrd_ver_register_divider (&pdev->dev, clkout_name, clk_name, 0, clk_wzrd->base, @@ -1148,7 +1148,7 @@ static int clk_wzrd_probe(struct platform_device *pdev) DIV_O, &clkwzrd_lock); } else { if (!i) - clk_wzrd->clkout[i] = clk_wzrd_register_divf + clk_wzrd->clk_data.hws[i] = clk_wzrd_register_divf (&pdev->dev, clkout_name, clk_name, flags, clk_wzrd->base, (WZRD_CLK_CFG_REG(is_versal, 2) + i * 12), WZRD_CLKOUT_DIVIDE_SHIFT, @@ -1156,7 +1156,7 @@ static int clk_wzrd_probe(struct platform_device *pdev) CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO, DIV_O, &clkwzrd_lock); else - clk_wzrd->clkout[i] = clk_wzrd_register_divider + clk_wzrd->clk_data.hws[i] = clk_wzrd_register_divider (&pdev->dev, clkout_name, clk_name, 0, clk_wzrd->base, (WZRD_CLK_CFG_REG(is_versal, 2) + i * 12), WZRD_CLKOUT_DIVIDE_SHIFT, @@ -1164,22 +1164,25 @@ static int clk_wzrd_probe(struct platform_device *pdev) CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO, DIV_O, &clkwzrd_lock); } - if (IS_ERR(clk_wzrd->clkout[i])) { + if (IS_ERR(clk_wzrd->clk_data.hws[i])) { int j; for (j = i + 1; j < nr_outputs; j++) - clk_unregister(clk_wzrd->clkout[j]); + clk_hw_unregister(clk_wzrd->clk_data.hws[j]); dev_err(&pdev->dev, "unable to register divider clock\n"); - ret = PTR_ERR(clk_wzrd->clkout[i]); + ret = PTR_ERR(clk_wzrd->clk_data.hws[i]); goto err_rm_int_clks; } } out: - clk_wzrd->clk_data.clks = clk_wzrd->clkout; - clk_wzrd->clk_data.clk_num = ARRAY_SIZE(clk_wzrd->clkout); - of_clk_add_provider(np, of_clk_src_onecell_get, &clk_wzrd->clk_data); + clk_wzrd->clk_data.num = nr_outputs; + ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, &clk_wzrd->clk_data); + if (ret) { + dev_err(&pdev->dev, "unable to register clock provider\n"); + return ret; + } if (clk_wzrd->speed_grade) { clk_wzrd->nb.notifier_call = clk_wzrd_clk_notifier; @@ -1200,9 +1203,9 @@ static int clk_wzrd_probe(struct platform_device *pdev) return 0; err_rm_int_clks: - clk_unregister(clk_wzrd->clks_internal[1]); + clk_hw_unregister(clk_wzrd->clks_internal[1]); err_rm_int_clk: - clk_unregister(clk_wzrd->clks_internal[0]); + clk_hw_unregister(clk_wzrd->clks_internal[0]); return ret; } @@ -1214,9 +1217,9 @@ static void clk_wzrd_remove(struct platform_device *pdev) of_clk_del_provider(pdev->dev.of_node); for (i = 0; i < WZRD_NUM_OUTPUTS; i++) - clk_unregister(clk_wzrd->clkout[i]); + clk_hw_unregister(clk_wzrd->clk_data.hws[i]); for (i = 0; i < wzrd_clk_int_max; i++) - clk_unregister(clk_wzrd->clks_internal[i]); + clk_hw_unregister(clk_wzrd->clks_internal[i]); } static const struct of_device_id clk_wzrd_ids[] = {