From patchwork Sun Feb 16 10:27:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 204755 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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 2BAD0C7619F for ; Sun, 16 Feb 2020 10:28:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 00A422467C for ; Sun, 16 Feb 2020 10:28:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581848924; bh=I45mpKN9HaTxsj/paq804ElnxebxHGDKm3u/O96MCI8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=aruNU9S4R8gpUNcu2ZeHtP0Dne3MaeVpw4hNXAVo391cWDPMBQWgQ6VHKMEYYcJhB 0P1cfh5CLfrngSUMNXxBgIIDVGPe3JCLn2uZh1mkRQLUvPVhd161rA1/lGMW6Gu7g+ zFlTpBFjqe5X5EyJZ+A//DoAIRlOwRe8sR1qpXO0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727946AbgBPK2j (ORCPT ); Sun, 16 Feb 2020 05:28:39 -0500 Received: from mail.kernel.org ([198.145.29.99]:44460 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725951AbgBPK2j (ORCPT ); Sun, 16 Feb 2020 05:28:39 -0500 Received: from localhost.localdomain (unknown [122.178.194.127]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B47F120857; Sun, 16 Feb 2020 10:28:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581848918; bh=I45mpKN9HaTxsj/paq804ElnxebxHGDKm3u/O96MCI8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zXW/WK1U1ozaJ3ClK0sslzWYqjwg5HNAH3eia64mkIxZrUUKsZsFAfJ+ctbLrd+ql ddcnpGnPTZNo7mZRCHkrIaWCcYXcGqLSKokzDP3r2BfhIhJoYOuM/0FvSxBVOw7CGP ao7vFCw2vfKwpsIFoqv8Y4m8ZvcA0kiMLeCzgPv4= From: Vinod Koul To: Stephen Boyd Cc: linux-arm-msm@vger.kernel.org, Bjorn Andersson , Taniya Das , Rob Herring , Mark Rutland , devicetree@vger.kernel.org, Andy Gross , Michael Turquette , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, psodagud@codeaurora.org, tsoni@codeaurora.org, jshriram@codeaurora.org, vnkgutta@codeaurora.org, Vinod Koul Subject: [PATCH v3 2/5] clk: qcom: clk-alpha-pll: Refactor trion PLL Date: Sun, 16 Feb 2020 15:57:22 +0530 Message-Id: <20200216102725.2629155-3-vkoul@kernel.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200216102725.2629155-1-vkoul@kernel.org> References: <20200216102725.2629155-1-vkoul@kernel.org> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Taniya Das Remove duplicate function for calculating the round rate of PLL and also update the trion pll ops to use the common function. Signed-off-by: Taniya Das Signed-off-by: Venkata Narendra Kumar Gutta Signed-off-by: Vinod Koul --- drivers/clk/qcom/clk-alpha-pll.c | 33 ++++++-------------------------- 1 file changed, 6 insertions(+), 27 deletions(-) diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c index 0bdf6e45fac9..0adec585eb4f 100644 --- a/drivers/clk/qcom/clk-alpha-pll.c +++ b/drivers/clk/qcom/clk-alpha-pll.c @@ -845,33 +845,12 @@ static unsigned long clk_trion_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); - struct regmap *regmap = pll->clkr.regmap; - u32 l, frac; - u64 prate = parent_rate; - - regmap_read(regmap, PLL_L_VAL(pll), &l); - regmap_read(regmap, PLL_ALPHA_VAL(pll), &frac); - - return alpha_pll_calc_rate(prate, l, frac, ALPHA_REG_16BIT_WIDTH); -} - -static long clk_trion_pll_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); - unsigned long min_freq, max_freq; - u32 l; - u64 a; - - rate = alpha_pll_round_rate(rate, *prate, - &l, &a, ALPHA_REG_16BIT_WIDTH); - if (!pll->vco_table || alpha_pll_find_vco(pll, rate)) - return rate; + u32 l, frac, alpha_width = pll_alpha_width(pll); - min_freq = pll->vco_table[0].min_freq; - max_freq = pll->vco_table[pll->num_vco - 1].max_freq; + regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l); + regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &frac); - return clamp(rate, min_freq, max_freq); + return alpha_pll_calc_rate(parent_rate, l, frac, alpha_width); } const struct clk_ops clk_alpha_pll_fixed_ops = { @@ -917,7 +896,7 @@ const struct clk_ops clk_trion_fixed_pll_ops = { .disable = clk_trion_pll_disable, .is_enabled = clk_trion_pll_is_enabled, .recalc_rate = clk_trion_pll_recalc_rate, - .round_rate = clk_trion_pll_round_rate, + .round_rate = clk_alpha_pll_round_rate, }; EXPORT_SYMBOL_GPL(clk_trion_fixed_pll_ops); @@ -1173,7 +1152,7 @@ static int alpha_pll_fabia_set_rate(struct clk_hw *hw, unsigned long rate, * Due to limited number of bits for fractional rate programming, the * rounded up rate could be marginally higher than the requested rate. */ - if (rrate > max || rrate < rate) { + if (rrate > (rate + PLL_RATE_MARGIN) || rrate < rate) { pr_err("%s: Rounded rate %lu not within range [%lu, %lu)\n", clk_hw_get_name(hw), rrate, rate, max); return -EINVAL;