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[82.127.142.33]) by smtp.gmail.com with ESMTPSA id h2sm20713774wrp.69.2020.09.21.03.27.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Sep 2020 03:27:37 -0700 (PDT) From: =?utf-8?b?Q2zDqW1lbnQgUMOpcm9u?= To: Maxime Ripard , Chen-Yu Tsai , Rob Herring , Mark Brown , Liam Girdwood Subject: [PATCH v4 03/22] ASoC: sun4i-i2s: Change get_sr() and get_wss() to be more explicit Date: Mon, 21 Sep 2020 12:27:12 +0200 Message-Id: <20200921102731.747736-4-peron.clem@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200921102731.747736-1-peron.clem@gmail.com> References: <20200921102731.747736-1-peron.clem@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200921_062740_207511_107A179D X-CRM114-Status: GOOD ( 16.02 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:443 listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [peron.clem[at]gmail.com] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jernej Skrabec , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Takashi Iwai , Jaroslav Kysela , Marcus Cooper , linux-sunxi@googlegroups.com, =?utf-8?b?Q2zDqW1lbnQgUMOpcm9u?= , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org We are actually using a complex formula to just return a bunch of simple values. Also this formula is wrong for sun4i. Replace this with a simpler switch case. Also drop the i2s params not used. 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;