From patchwork Mon May 4 11:34:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oder Chiou X-Patchwork-Id: 11525553 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CABCA14B4 for ; Mon, 4 May 2020 11:36:58 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 CFCFD2073E for ; Mon, 4 May 2020 11:36:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="vgajKXuX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CFCFD2073E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id C3E121710; Mon, 4 May 2020 13:36:09 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C3E121710 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1588592215; bh=ukqHfgZgD1u8lq2KMo8VRzlvOj0EGTZq4iXPZdG850w=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=vgajKXuXyzzpKA+eUK1Q6pyghh7yfXnkOR6Fg27BtGTjgHY6pzBwlWzS5bO0CfP7R ir4GNfQcYDcmPyFpq6tzTv5eLFTnukEcimU4qX8AGUm/nQy2+1QFiNNP558VwkDSHr s4H3T9pvSahPC8+hHgIJ5Dcdu8fE338hqX6o4Tw4= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 757CFF800EE; Mon, 4 May 2020 13:35:19 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 3E9DDF80277; Mon, 4 May 2020 13:35:18 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 9E60DF800EE for ; Mon, 4 May 2020 13:35:11 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 9E60DF800EE Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.69 with qID 044BZ8CE0007562, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexmb06.realtek.com.tw[172.21.6.99]) by rtits2.realtek.com.tw (8.15.2/2.66/5.86) with ESMTPS id 044BZ8CE0007562 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Mon, 4 May 2020 19:35:08 +0800 Received: from RTEXMB01.realtek.com.tw (172.21.6.94) by RTEXMB06.realtek.com.tw (172.21.6.99) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Mon, 4 May 2020 19:35:08 +0800 Received: from localhost.localdomain (172.22.102.1) by RTEXMB01.realtek.com.tw (172.21.6.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Mon, 4 May 2020 19:35:07 +0800 From: Oder Chiou To: , Subject: [v2] ASoC: rl6231: Add the K bypass for the PLL parameters Date: Mon, 4 May 2020 19:34:37 +0800 Message-ID: <20200504113437.2795-2-oder_chiou@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200504113437.2795-1-oder_chiou@realtek.com> References: <20200504113437.2795-1-oder_chiou@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.22.102.1] X-ClientProxiedBy: RTEXMB06.realtek.com.tw (172.21.6.99) To RTEXMB01.realtek.com.tw (172.21.6.94) Cc: Oder Chiou , jack.yu@realtek.com, alsa-devel@alsa-project.org, derek.fang@realtek.com, shumingf@realtek.com, flove@realtek.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" The patch adds the K bypass for the PLL parameters. Signed-off-by: Oder Chiou --- sound/soc/codecs/rl6231.c | 29 +++++++++++++++++++---------- sound/soc/codecs/rl6231.h | 1 + 2 files changed, 20 insertions(+), 10 deletions(-) diff --git a/sound/soc/codecs/rl6231.c b/sound/soc/codecs/rl6231.c index d181c217d835..2586d1cafc0c 100644 --- a/sound/soc/codecs/rl6231.c +++ b/sound/soc/codecs/rl6231.c @@ -97,12 +97,13 @@ struct pll_calc_map { int n; int m; bool m_bp; + bool k_bp; }; static const struct pll_calc_map pll_preset_table[] = { - {19200000, 4096000, 23, 14, 1, false}, - {19200000, 24576000, 3, 30, 3, false}, - {3840000, 24576000, 3, 30, 0, true}, + {19200000, 4096000, 23, 14, 1, false, false}, + {19200000, 24576000, 3, 30, 3, false, false}, + {3840000, 24576000, 3, 30, 0, true, false}, }; static unsigned int find_best_div(unsigned int in, @@ -128,7 +129,7 @@ static unsigned int find_best_div(unsigned int in, * rl6231_pll_calc - Calcualte PLL M/N/K code. * @freq_in: external clock provided to codec. * @freq_out: target clock which codec works on. - * @pll_code: Pointer to structure with M, N, K and bypass flag. + * @pll_code: Pointer to structure with M, N, K, m_bypass and k_bypass flag. * * Calcualte M/N/K code to configure PLL for codec. * @@ -143,7 +144,7 @@ int rl6231_pll_calc(const unsigned int freq_in, unsigned int red, pll_out, in_t, out_t, div, div_t; unsigned int red_t = abs(freq_out - freq_in); unsigned int f_in, f_out, f_max; - bool bypass = false; + bool m_bypass = false, k_bypass = false; if (RL6231_PLL_INP_MAX < freq_in || RL6231_PLL_INP_MIN > freq_in) return -EINVAL; @@ -154,7 +155,8 @@ int rl6231_pll_calc(const unsigned int freq_in, k = pll_preset_table[i].k; m = pll_preset_table[i].m; n = pll_preset_table[i].n; - bypass = pll_preset_table[i].m_bp; + m_bypass = pll_preset_table[i].m_bp; + k_bypass = pll_preset_table[i].k_bp; pr_debug("Use preset PLL parameter table\n"); goto code_find; } @@ -172,12 +174,14 @@ int rl6231_pll_calc(const unsigned int freq_in, f_in = freq_in / div; f_out = freq_out / div; k = min_k; + if (min_k < -1) + min_k = -1; for (k_t = min_k; k_t <= max_k; k_t++) { for (n_t = 0; n_t <= max_n; n_t++) { in_t = f_in * (n_t + 2); pll_out = f_out * (k_t + 2); if (in_t == pll_out) { - bypass = true; + m_bypass = true; n = n_t; k = k_t; goto code_find; @@ -185,7 +189,7 @@ int rl6231_pll_calc(const unsigned int freq_in, out_t = in_t / (k_t + 2); red = abs(f_out - out_t); if (red < red_t) { - bypass = true; + m_bypass = true; n = n_t; m = 0; k = k_t; @@ -197,7 +201,7 @@ int rl6231_pll_calc(const unsigned int freq_in, out_t = in_t / ((m_t + 2) * (k_t + 2)); red = abs(f_out - out_t); if (red < red_t) { - bypass = false; + m_bypass = false; n = n_t; m = m_t; k = k_t; @@ -211,8 +215,13 @@ int rl6231_pll_calc(const unsigned int freq_in, pr_debug("Only get approximation about PLL\n"); code_find: + if (k == -1) { + k_bypass = true; + k = 0; + } - pll_code->m_bp = bypass; + pll_code->m_bp = m_bypass; + pll_code->k_bp = k_bypass; pll_code->m_code = m; pll_code->n_code = n; pll_code->k_code = k; diff --git a/sound/soc/codecs/rl6231.h b/sound/soc/codecs/rl6231.h index 6d8ed0377296..928082750860 100644 --- a/sound/soc/codecs/rl6231.h +++ b/sound/soc/codecs/rl6231.h @@ -18,6 +18,7 @@ struct rl6231_pll_code { bool m_bp; /* Indicates bypass m code or not. */ + bool k_bp; /* Indicates bypass k code or not. */ int m_code; int n_code; int k_code;