From mboxrd@z Thu Jan 1 00:00:00 1970 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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 74FEBC4727F for ; Sun, 27 Sep 2020 19:29:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3620323A58 for ; Sun, 27 Sep 2020 19:29:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="VpmgE9hK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726440AbgI0T3Y (ORCPT ); Sun, 27 Sep 2020 15:29:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34260 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726360AbgI0T3X (ORCPT ); Sun, 27 Sep 2020 15:29:23 -0400 Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A540C0613D4; Sun, 27 Sep 2020 12:29:22 -0700 (PDT) Received: by mail-wm1-x342.google.com with SMTP id e17so4404666wme.0; Sun, 27 Sep 2020 12:29:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=LfoOimVfCN8iFpUENEv9ik5I5IDM2MMc9g699qzOgnE=; b=VpmgE9hKsKx/id8FAUpypRINdZZZJDQA2g5lwliDvvPG9+wLh7mwSHeREEXM+3IGo6 JM4Zsn9otlHItLDUZVOeoSoYYSelVp8w6u84cVugy6ngjkiT0vVSotxMPshnjYhjQKce rsy3mzyWMgCzDJ/9o5OkR+MnDXsWjR6EBkFkRT5xUzbWShpRXN/kKk2IvkG+1yG7lCg8 5/QR7CLhtajvWc3epZeTnRoDNPjefVyXdAQUK08bHmvw4Mj5n1ais1esclJnVyskfSiy +bBKwryUU+zccngaYsykzxsW7MX72TzEyen+G0f+zx8+POtGMz4mDz0clZzuF+00Az8I rBSA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=LfoOimVfCN8iFpUENEv9ik5I5IDM2MMc9g699qzOgnE=; b=Etf2qFdYy7YVK3Hb6J6fYX9S2vQ7WjtUOkXqKhHXgTOfcp40vmXMw/7vIJn2/uQD0W Ule9CQHGFiF4irmLc29T/jD6KPP2+BTDciC4oXGiioC7IJPyIkGMu7O8UbipR5Z/SXuy WPB/otJT4Ghj9MjNBgJdJHaz9jUNOsEZyUuxesfFYd2E8obbylZ1Q7yQbmql8H9kvDnZ E9dLVY3KtWDW4uljp540WbRlOeji8xA4c7Qy1dUTTg+R2ef+NG1VMvby/GHi9BoKbDkG oQEQCFmMwiEf/+iq9S17FXc0Iy/LoXE38x8cwUn8YIrWNyeox75gwEqYtwl4a1lz/oYP Ot/g== X-Gm-Message-State: AOAM532QIgnv9KXKPIybWCaE1tD7URrT2ZCal8Lv41tNb1OdYc/4jOUN C7RUWSNovo5AmC51mILuWeY= X-Google-Smtp-Source: ABdhPJw3iZIupzVBEAEZQV7hiP0OWDYQ3Rq8IdNg9/nxOE6mZ0V/lg0E7tgNoNIB3xWEaiYI1jaNUQ== X-Received: by 2002:a1c:6a14:: with SMTP id f20mr7949339wmc.81.1601234961223; Sun, 27 Sep 2020 12:29:21 -0700 (PDT) Received: from clement-Latitude-7490.numericable.fr (213-245-241-245.rev.numericable.fr. [213.245.241.245]) by smtp.gmail.com with ESMTPSA id n21sm6149609wmi.21.2020.09.27.12.29.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Sep 2020 12:29:20 -0700 (PDT) From: =?UTF-8?q?Cl=C3=A9ment=20P=C3=A9ron?= To: Maxime Ripard , Chen-Yu Tsai , Rob Herring , Mark Brown , Liam Girdwood Cc: Jaroslav Kysela , Takashi Iwai , Marcus Cooper , Jernej Skrabec , alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, =?UTF-8?q?Cl=C3=A9ment=20P=C3=A9ron?= Subject: [PATCH v5 03/20] ASoC: sun4i-i2s: Change get_sr() and get_wss() to be more explicit Date: Sun, 27 Sep 2020 21:28:55 +0200 Message-Id: <20200927192912.46323-4-peron.clem@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200927192912.46323-1-peron.clem@gmail.com> References: <20200927192912.46323-1-peron.clem@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org We are actually using a complex formula to just return a bunch of simple values. Also this formula is wrong for sun4i when calling get_wss() the function return 4 instead of 3. Replace this with a simpler switch case. Also drop the i2s params which is unused and return a simple int as returning an error code could be out of range for an s8 and there is no optim to return a s8 here. Signed-off-by: Clément Péron --- sound/soc/sunxi/sun4i-i2s.c | 69 +++++++++++++++++++++++-------------- 1 file changed, 44 insertions(+), 25 deletions(-) diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index 0633b9fba3d7..11bbcbe24d6b 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -175,8 +175,8 @@ struct sun4i_i2s_quirks { unsigned int num_mclk_dividers; unsigned long (*get_bclk_parent_rate)(const struct sun4i_i2s *); - s8 (*get_sr)(const struct sun4i_i2s *, int); - s8 (*get_wss)(const struct sun4i_i2s *, int); + int (*get_sr)(unsigned int width); + int (*get_wss)(unsigned int width); int (*set_chan_cfg)(const struct sun4i_i2s *i2s, unsigned int channels, unsigned int slots, unsigned int slot_width); @@ -381,37 +381,56 @@ static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, return 0; } -static s8 sun4i_i2s_get_sr(const struct sun4i_i2s *i2s, int width) +static int sun4i_i2s_get_sr(unsigned int width) { - if (width < 16 || width > 24) - return -EINVAL; - - if (width % 4) - return -EINVAL; + switch (width) { + case 16: + return 0x0; + case 20: + return 0x1; + case 24: + return 0x2; + } - return (width - 16) / 4; + return -EINVAL; } -static s8 sun4i_i2s_get_wss(const struct sun4i_i2s *i2s, int width) +static int sun4i_i2s_get_wss(unsigned int width) { - if (width < 16 || width > 32) - return -EINVAL; - - if (width % 4) - return -EINVAL; + switch (width) { + case 16: + return 0x0; + case 20: + return 0x1; + case 24: + return 0x2; + case 32: + return 0x3; + } - return (width - 16) / 4; + return -EINVAL; } -static s8 sun8i_i2s_get_sr_wss(const struct sun4i_i2s *i2s, int width) +static int sun8i_i2s_get_sr_wss(unsigned int width) { - if (width % 4) - return -EINVAL; - - if (width < 8 || width > 32) - return -EINVAL; + switch (width) { + case 8: + return 0x1; + case 12: + return 0x2; + case 16: + return 0x3; + case 20: + return 0x4; + case 24: + return 0x5; + case 28: + return 0x6; + case 32: + return 0x7; + } - return (width - 8) / 4 + 1; + return -EINVAL; } static int sun4i_i2s_set_chan_cfg(const struct sun4i_i2s *i2s, @@ -572,11 +591,11 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, } i2s->playback_dma_data.addr_width = width; - sr = i2s->variant->get_sr(i2s, word_size); + sr = i2s->variant->get_sr(word_size); if (sr < 0) return -EINVAL; - wss = i2s->variant->get_wss(i2s, slot_width); + wss = i2s->variant->get_wss(slot_width); if (wss < 0) return -EINVAL; -- 2.25.1