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[91.167.199.67]) by smtp.gmail.com with ESMTPSA id t16sm13371559wmi.27.2020.04.18.15.44.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Apr 2020 15:44:46 -0700 (PDT) From: =?UTF-8?q?Cl=C3=A9ment=20P=C3=A9ron?= To: Liam Girdwood , Mark Brown , Rob Herring , Maxime Ripard , Chen-Yu Tsai , Jaroslav Kysela , Takashi Iwai Cc: alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Marcus Cooper , =?UTF-8?q?Cl=C3=A9ment=20P=C3=A9ron?= Subject: [PATCH v2 6/7] ASoC: sun4i-i2s: Adjust regmap settings Date: Sun, 19 Apr 2020 00:44:34 +0200 Message-Id: <20200418224435.23672-7-peron.clem@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200418224435.23672-1-peron.clem@gmail.com> References: <20200418224435.23672-1-peron.clem@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marcus Cooper Bypass the regmap cache when flushing the i2s FIFOs and modify the tables to reflect this. Signed-off-by: Marcus Cooper Signed-off-by: Clément Péron --- sound/soc/sunxi/sun4i-i2s.c | 31 ++++++++----------------------- 1 file changed, 8 insertions(+), 23 deletions(-) diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index 9778af37fbca..9053d290dd87 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -921,7 +921,7 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) static void sun4i_i2s_start_capture(struct sun4i_i2s *i2s) { /* Flush RX FIFO */ - regmap_update_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG, + regmap_write_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG, SUN4I_I2S_FIFO_CTRL_FLUSH_RX, SUN4I_I2S_FIFO_CTRL_FLUSH_RX); @@ -942,7 +942,7 @@ static void sun4i_i2s_start_capture(struct sun4i_i2s *i2s) static void sun4i_i2s_start_playback(struct sun4i_i2s *i2s) { /* Flush TX FIFO */ - regmap_update_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG, + regmap_write_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG, SUN4I_I2S_FIFO_CTRL_FLUSH_TX, SUN4I_I2S_FIFO_CTRL_FLUSH_TX); @@ -1096,13 +1096,7 @@ static const struct snd_soc_component_driver sun4i_i2s_component = { static bool sun4i_i2s_rd_reg(struct device *dev, unsigned int reg) { - switch (reg) { - case SUN4I_I2S_FIFO_TX_REG: - return false; - - default: - return true; - } + return true; } static bool sun4i_i2s_wr_reg(struct device *dev, unsigned int reg) @@ -1121,6 +1115,8 @@ static bool sun4i_i2s_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case SUN4I_I2S_FIFO_RX_REG: + case SUN4I_I2S_FIFO_TX_REG: + case SUN4I_I2S_FIFO_STA_REG: case SUN4I_I2S_INT_STA_REG: case SUN4I_I2S_RX_CNT_REG: case SUN4I_I2S_TX_CNT_REG: @@ -1131,23 +1127,12 @@ static bool sun4i_i2s_volatile_reg(struct device *dev, unsigned int reg) } } -static bool sun8i_i2s_rd_reg(struct device *dev, unsigned int reg) -{ - switch (reg) { - case SUN8I_I2S_FIFO_TX_REG: - return false; - - default: - return true; - } -} - static bool sun8i_i2s_volatile_reg(struct device *dev, unsigned int reg) { if (reg == SUN8I_I2S_INT_STA_REG) return true; if (reg == SUN8I_I2S_FIFO_TX_REG) - return false; + return true; return sun4i_i2s_volatile_reg(dev, reg); } @@ -1218,7 +1203,7 @@ static const struct regmap_config sun8i_i2s_regmap_config = { .reg_defaults = sun8i_i2s_reg_defaults, .num_reg_defaults = ARRAY_SIZE(sun8i_i2s_reg_defaults), .writeable_reg = sun4i_i2s_wr_reg, - .readable_reg = sun8i_i2s_rd_reg, + .readable_reg = sun4i_i2s_rd_reg, .volatile_reg = sun8i_i2s_volatile_reg, }; @@ -1231,7 +1216,7 @@ static const struct regmap_config sun50i_i2s_regmap_config = { .reg_defaults = sun50i_i2s_reg_defaults, .num_reg_defaults = ARRAY_SIZE(sun50i_i2s_reg_defaults), .writeable_reg = sun4i_i2s_wr_reg, - .readable_reg = sun8i_i2s_rd_reg, + .readable_reg = sun4i_i2s_rd_reg, .volatile_reg = sun8i_i2s_volatile_reg, }; -- 2.20.1