nathan/Chromebook-Device-Nyan-NVIDIA-Tegra-K1-T124-Upstream-Linux-3.10-LTS-Kernel
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Updated from Linux LTS 3.10.21 to 3.10.22

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Nathan
2025-04-07 10:16:56 -05:00
parent 8de512f759
commit fb417c8ab5
200 changed files with 2126 additions and 770 deletions
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25
drivers/media/tuners/fc2580.c
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@@ -20,6 +20,9 @@
#include "fc2580_priv.h"
/* Max transfer size done by I2C transfer functions */
#define MAX_XFER_SIZE 64
/*
* TODO:
* I2C write and read works only for one single register. Multiple registers
@@ -41,16 +44,23 @@
static int fc2580_wr_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len)
{
int ret;
u8 buf[1 + len];
u8 buf[MAX_XFER_SIZE];
struct i2c_msg msg[1] = {
{
.addr = priv->cfg->i2c_addr,
.flags = 0,
.len = sizeof(buf),
.len = 1 + len,
.buf = buf,
}
};
if (1 + len > sizeof(buf)) {
dev_warn(&priv->i2c->dev,
"%s: i2c wr reg=%04x: len=%d is too big!\n",
KBUILD_MODNAME, reg, len);
return -EINVAL;
}
buf[0] = reg;
memcpy(&buf[1], val, len);
@@ -69,7 +79,7 @@ static int fc2580_wr_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len)
static int fc2580_rd_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len)
{
int ret;
u8 buf[len];
u8 buf[MAX_XFER_SIZE];
struct i2c_msg msg[2] = {
{
.addr = priv->cfg->i2c_addr,
@@ -79,11 +89,18 @@ static int fc2580_rd_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len)
}, {
.addr = priv->cfg->i2c_addr,
.flags = I2C_M_RD,
.len = sizeof(buf),
.len = len,
.buf = buf,
}
};
if (len > sizeof(buf)) {
dev_warn(&priv->i2c->dev,
"%s: i2c rd reg=%04x: len=%d is too big!\n",
KBUILD_MODNAME, reg, len);
return -EINVAL;
}
ret = i2c_transfer(priv->i2c, msg, 2);
if (ret == 2) {
memcpy(val, buf, len);