summaryrefslogtreecommitdiff
path: root/drivers/media/dvb-frontends/si2165.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb-frontends/si2165.c')
-rw-r--r--drivers/media/dvb-frontends/si2165.c87
1 files changed, 46 insertions, 41 deletions
diff --git a/drivers/media/dvb-frontends/si2165.c b/drivers/media/dvb-frontends/si2165.c
index 7110b3b37f23..6b22d079ecef 100644
--- a/drivers/media/dvb-frontends/si2165.c
+++ b/drivers/media/dvb-frontends/si2165.c
@@ -63,11 +63,12 @@ struct si2165_state {
};
static int si2165_write(struct si2165_state *state, const u16 reg,
- const u8 *src, const int count)
+ const u8 *src, const int count)
{
int ret;
- dev_dbg(&state->client->dev, "i2c write: reg: 0x%04x, data: %*ph\n", reg, count, src);
+ dev_dbg(&state->client->dev, "i2c write: reg: 0x%04x, data: %*ph\n",
+ reg, count, src);
ret = regmap_bulk_write(state->regmap, reg, src, count);
@@ -88,13 +89,14 @@ static int si2165_read(struct si2165_state *state,
return ret;
}
- dev_dbg(&state->client->dev, "i2c read: reg: 0x%04x, data: %*ph\n", reg, count, val);
+ dev_dbg(&state->client->dev, "i2c read: reg: 0x%04x, data: %*ph\n",
+ reg, count, val);
return 0;
}
static int si2165_readreg8(struct si2165_state *state,
- const u16 reg, u8 *val)
+ const u16 reg, u8 *val)
{
unsigned int val_tmp;
int ret = regmap_read(state->regmap, reg, &val_tmp);
@@ -104,7 +106,7 @@ static int si2165_readreg8(struct si2165_state *state,
}
static int si2165_readreg16(struct si2165_state *state,
- const u16 reg, u16 *val)
+ const u16 reg, u16 *val)
{
u8 buf[2];
@@ -161,7 +163,9 @@ static int si2165_writereg_mask8(struct si2165_state *state, const u16 reg,
return si2165_writereg8(state, reg, val);
}
-#define REG16(reg, val) { (reg), (val) & 0xff }, { (reg)+1, (val)>>8 & 0xff }
+#define REG16(reg, val) \
+ { (reg), (val) & 0xff }, \
+ { (reg) + 1, (val) >> 8 & 0xff }
struct si2165_reg_value_pair {
u16 reg;
u8 val;
@@ -191,7 +195,7 @@ static int si2165_get_tune_settings(struct dvb_frontend *fe,
static int si2165_init_pll(struct si2165_state *state)
{
- u32 ref_freq_Hz = state->config.ref_freq_Hz;
+ u32 ref_freq_hz = state->config.ref_freq_hz;
u8 divr = 1; /* 1..7 */
u8 divp = 1; /* only 1 or 4 */
u8 divn = 56; /* 1..63 */
@@ -203,7 +207,7 @@ static int si2165_init_pll(struct si2165_state *state)
* hardcoded values can be deleted if calculation is verified
* or it yields the same values as the windows driver
*/
- switch (ref_freq_Hz) {
+ switch (ref_freq_hz) {
case 16000000u:
divn = 56;
break;
@@ -214,23 +218,23 @@ static int si2165_init_pll(struct si2165_state *state)
break;
default:
/* ref_freq / divr must be between 4 and 16 MHz */
- if (ref_freq_Hz > 16000000u)
+ if (ref_freq_hz > 16000000u)
divr = 2;
/*
* now select divn and divp such that
* fvco is in 1624..1824 MHz
*/
- if (1624000000u * divr > ref_freq_Hz * 2u * 63u)
+ if (1624000000u * divr > ref_freq_hz * 2u * 63u)
divp = 4;
/* is this already correct regarding rounding? */
- divn = 1624000000u * divr / (ref_freq_Hz * 2u * divp);
+ divn = 1624000000u * divr / (ref_freq_hz * 2u * divp);
break;
}
/* adc_clk and sys_clk depend on xtal and pll settings */
- state->fvco_hz = ref_freq_Hz / divr
+ state->fvco_hz = ref_freq_hz / divr
* 2u * divn * divp;
state->adc_clk = state->fvco_hz / (divm * 4u);
state->sys_clk = state->fvco_hz / (divl * 2u);
@@ -272,7 +276,8 @@ static int si2165_wait_init_done(struct si2165_state *state)
}
static int si2165_upload_firmware_block(struct si2165_state *state,
- const u8 *data, u32 len, u32 *poffset, u32 block_count)
+ const u8 *data, u32 len, u32 *poffset,
+ u32 block_count)
{
int ret;
u8 buf_ctrl[4] = { 0x00, 0x00, 0x00, 0xc0 };
@@ -286,15 +291,15 @@ static int si2165_upload_firmware_block(struct si2165_state *state,
return -EINVAL;
dev_dbg(&state->client->dev,
- "fw load: si2165_upload_firmware_block called with len=0x%x offset=0x%x blockcount=0x%x\n",
- len, offset, block_count);
- while (offset+12 <= len && cur_block < block_count) {
+ "fw load: %s: called with len=0x%x offset=0x%x blockcount=0x%x\n",
+ __func__, len, offset, block_count);
+ while (offset + 12 <= len && cur_block < block_count) {
dev_dbg(&state->client->dev,
- "fw load: si2165_upload_firmware_block in while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n",
- len, offset, cur_block, block_count);
+ "fw load: %s: in while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n",
+ __func__, len, offset, cur_block, block_count);
wordcount = data[offset];
- if (wordcount < 1 || data[offset+1] ||
- data[offset+2] || data[offset+3]) {
+ if (wordcount < 1 || data[offset + 1] ||
+ data[offset + 2] || data[offset + 3]) {
dev_warn(&state->client->dev,
"bad fw data[0..3] = %*ph\n",
4, data);
@@ -313,14 +318,14 @@ static int si2165_upload_firmware_block(struct si2165_state *state,
ret = si2165_write(state, 0x0364, buf_ctrl, 4);
if (ret < 0)
goto error;
- ret = si2165_write(state, 0x0368, data+offset+4, 4);
+ ret = si2165_write(state, 0x0368, data + offset + 4, 4);
if (ret < 0)
goto error;
offset += 8;
while (wordcount > 0) {
- ret = si2165_write(state, 0x36c, data+offset, 4);
+ ret = si2165_write(state, 0x36c, data + offset, 4);
if (ret < 0)
goto error;
wordcount--;
@@ -330,15 +335,15 @@ static int si2165_upload_firmware_block(struct si2165_state *state,
}
dev_dbg(&state->client->dev,
- "fw load: si2165_upload_firmware_block after while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n",
- len, offset, cur_block, block_count);
+ "fw load: %s: after while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n",
+ __func__, len, offset, cur_block, block_count);
if (poffset)
*poffset = offset;
dev_dbg(&state->client->dev,
- "fw load: si2165_upload_firmware_block returned offset=0x%x\n",
- offset);
+ "fw load: %s: returned offset=0x%x\n",
+ __func__, offset);
return 0;
error:
@@ -367,7 +372,7 @@ static int si2165_upload_firmware(struct si2165_state *state)
break;
default:
dev_info(&state->client->dev, "no firmware file for revision=%d\n",
- state->chip_revcode);
+ state->chip_revcode);
return 0;
}
@@ -375,7 +380,7 @@ static int si2165_upload_firmware(struct si2165_state *state)
ret = request_firmware(&fw, fw_file, &state->client->dev);
if (ret) {
dev_warn(&state->client->dev, "firmware file '%s' not found\n",
- fw_file);
+ fw_file);
goto error;
}
@@ -383,7 +388,7 @@ static int si2165_upload_firmware(struct si2165_state *state)
len = fw->size;
dev_info(&state->client->dev, "downloading firmware from file '%s' size=%d\n",
- fw_file, len);
+ fw_file, len);
if (len % 4 != 0) {
dev_warn(&state->client->dev, "firmware size is not multiple of 4\n");
@@ -436,8 +441,8 @@ static int si2165_upload_firmware(struct si2165_state *state)
/* start right after the header */
offset = 8;
- dev_info(&state->client->dev, "si2165_upload_firmware extracted patch_version=0x%02x, block_count=0x%02x, crc_expected=0x%04x\n",
- patch_version, block_count, crc_expected);
+ dev_info(&state->client->dev, "%s: extracted patch_version=0x%02x, block_count=0x%02x, crc_expected=0x%04x\n",
+ __func__, patch_version, block_count, crc_expected);
ret = si2165_upload_firmware_block(state, data, len, &offset, 1);
if (ret < 0)
@@ -963,7 +968,7 @@ static const struct dvb_frontend_ops si2165_ops = {
};
static int si2165_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+ const struct i2c_device_id *id)
{
struct si2165_state *state = NULL;
struct si2165_platform_data *pdata = client->dev.platform_data;
@@ -979,8 +984,8 @@ static int si2165_probe(struct i2c_client *client,
};
/* allocate memory for the internal state */
- state = kzalloc(sizeof(struct si2165_state), GFP_KERNEL);
- if (state == NULL) {
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state) {
ret = -ENOMEM;
goto error;
}
@@ -996,20 +1001,20 @@ static int si2165_probe(struct i2c_client *client,
state->client = client;
state->config.i2c_addr = client->addr;
state->config.chip_mode = pdata->chip_mode;
- state->config.ref_freq_Hz = pdata->ref_freq_Hz;
+ state->config.ref_freq_hz = pdata->ref_freq_hz;
state->config.inversion = pdata->inversion;
- if (state->config.ref_freq_Hz < 4000000
- || state->config.ref_freq_Hz > 27000000) {
+ if (state->config.ref_freq_hz < 4000000 ||
+ state->config.ref_freq_hz > 27000000) {
dev_err(&state->client->dev, "ref_freq of %d Hz not supported by this driver\n",
- state->config.ref_freq_Hz);
+ state->config.ref_freq_hz);
ret = -EINVAL;
goto error;
}
/* create dvb_frontend */
memcpy(&state->fe.ops, &si2165_ops,
- sizeof(struct dvb_frontend_ops));
+ sizeof(struct dvb_frontend_ops));
state->fe.ops.release = NULL;
state->fe.demodulator_priv = state;
i2c_set_clientdata(client, state);
@@ -1060,12 +1065,12 @@ static int si2165_probe(struct i2c_client *client,
}
dev_info(&state->client->dev,
- "Detected Silicon Labs %s-%c (type %d, rev %d)\n",
+ "Detected Silicon Labs %s-%c (type %d, rev %d)\n",
chip_name, rev_char, state->chip_type,
state->chip_revcode);
strlcat(state->fe.ops.info.name, chip_name,
- sizeof(state->fe.ops.info.name));
+ sizeof(state->fe.ops.info.name));
n = 0;
if (state->has_dvbt) {
generated by cgit (git 2.34.1) at 2024-05-25 10:43:12 +0000