Updated from Linux LTS 3.10.21 to 3.10.22
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@@ -20,6 +20,9 @@
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#include "tda18212.h"
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/* Max transfer size done by I2C transfer functions */
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#define MAX_XFER_SIZE 64
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struct tda18212_priv {
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struct tda18212_config *cfg;
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struct i2c_adapter *i2c;
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@@ -32,16 +35,23 @@ static int tda18212_wr_regs(struct tda18212_priv *priv, u8 reg, u8 *val,
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int len)
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{
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int ret;
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u8 buf[len+1];
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u8 buf[MAX_XFER_SIZE];
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struct i2c_msg msg[1] = {
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{
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.addr = priv->cfg->i2c_address,
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.flags = 0,
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.len = sizeof(buf),
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.len = 1 + len,
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.buf = buf,
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}
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};
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if (1 + len > sizeof(buf)) {
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dev_warn(&priv->i2c->dev,
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"%s: i2c wr reg=%04x: len=%d is too big!\n",
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KBUILD_MODNAME, reg, len);
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return -EINVAL;
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}
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buf[0] = reg;
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memcpy(&buf[1], val, len);
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@@ -61,7 +71,7 @@ static int tda18212_rd_regs(struct tda18212_priv *priv, u8 reg, u8 *val,
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int len)
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{
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int ret;
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u8 buf[len];
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u8 buf[MAX_XFER_SIZE];
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struct i2c_msg msg[2] = {
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{
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.addr = priv->cfg->i2c_address,
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@@ -71,11 +81,18 @@ static int tda18212_rd_regs(struct tda18212_priv *priv, u8 reg, u8 *val,
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}, {
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.addr = priv->cfg->i2c_address,
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.flags = I2C_M_RD,
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.len = sizeof(buf),
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.len = len,
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.buf = buf,
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}
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};
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if (len > sizeof(buf)) {
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dev_warn(&priv->i2c->dev,
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"%s: i2c rd reg=%04x: len=%d is too big!\n",
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KBUILD_MODNAME, reg, len);
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return -EINVAL;
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}
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ret = i2c_transfer(priv->i2c, msg, 2);
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if (ret == 2) {
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memcpy(val, buf, len);
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