From: Sugar Zhang <sugar.zhang@rock-chips.com>
Date: Fri, 19 Feb 2016 02:10:07 +0000 (+0800)
Subject: ASoC: rockchip: i2s: add default values for registers
X-Git-Tag: firefly_0821_release~3380
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=85333f45a432ebd2497515123c370e5c90eead87;p=firefly-linux-kernel-4.4.55.git

ASoC: rockchip: i2s: add default values for registers

this patch add default values for registers according description from TRM.

Change-Id: I683b30483b9c1db08a202983f7055092db4cad2e
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
---

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 58ee64594f07..d12f188c4fcf 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -435,11 +435,21 @@ static bool rockchip_i2s_precious_reg(struct device *dev, unsigned int reg)
 	}
 }
 
+static const struct reg_default rockchip_i2s_reg_defaults[] = {
+	{0x00, 0x0000000f},
+	{0x04, 0x0000000f},
+	{0x08, 0x00071f1f},
+	{0x10, 0x001f0000},
+	{0x14, 0x01f00000},
+};
+
 static const struct regmap_config rockchip_i2s_regmap_config = {
 	.reg_bits = 32,
 	.reg_stride = 4,
 	.val_bits = 32,
 	.max_register = I2S_RXDR,
+	.reg_defaults = rockchip_i2s_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(rockchip_i2s_reg_defaults),
 	.writeable_reg = rockchip_i2s_wr_reg,
 	.readable_reg = rockchip_i2s_rd_reg,
 	.volatile_reg = rockchip_i2s_volatile_reg,