linux-kernel - [PATCH v1 02/12] ASoC: rockchip: pdm: using left justified store mode

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Date:   Wed,  3 Apr 2019 21:40:46 +0800
From:   Sugar Zhang <sugar.zhang@...k-chips.com>
To:     heiko@...ech.de, broonie@...nel.org
Cc:     linux-rockchip@...ts.infradead.org,
        Sugar Zhang <sugar.zhang@...k-chips.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 02/12] ASoC: rockchip: pdm: using left justified store mode

This patch set left justified store mode default.

Signed-off-by: Sugar Zhang <sugar.zhang@...k-chips.com>
---

 sound/soc/rockchip/rockchip_pdm.c | 1 +
 sound/soc/rockchip/rockchip_pdm.h | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c
index 8a2e3bb..360ebf2 100644
--- a/sound/soc/rockchip/rockchip_pdm.c
+++ b/sound/soc/rockchip/rockchip_pdm.c
@@ -135,6 +135,7 @@ static int rockchip_pdm_hw_params(struct snd_pcm_substream *substream,
 	regmap_update_bits(pdm->regmap, PDM_HPF_CTRL,
 			   PDM_HPF_LE | PDM_HPF_RE, PDM_HPF_LE | PDM_HPF_RE);
 	regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_CLK_EN, PDM_CLK_EN);
+	regmap_update_bits(pdm->regmap, PDM_CTRL0, PDM_MODE_MSK, PDM_MODE_LJ);
 
 	val = 0;
 	switch (params_format(params)) {
diff --git a/sound/soc/rockchip/rockchip_pdm.h b/sound/soc/rockchip/rockchip_pdm.h
index 886b48d1..00a8fa1 100644
--- a/sound/soc/rockchip/rockchip_pdm.h
+++ b/sound/soc/rockchip/rockchip_pdm.h
@@ -42,6 +42,9 @@
 
 /* PDM CTRL0 */
 #define PDM_PATH_MSK		(0xf << 27)
+#define PDM_MODE_MSK		BIT(31)
+#define PDM_MODE_RJ		0
+#define PDM_MODE_LJ		BIT(31)
 #define PDM_PATH3_EN		BIT(30)
 #define PDM_PATH2_EN		BIT(29)
 #define PDM_PATH1_EN		BIT(28)
-- 
2.7.4