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clk: si5351: remove variant from platform_data

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Commit 9807362bfe
  "clk: si5351: declare all device IDs for module loading"
removed the common i2c_device_id and introduced new ones for each variant
of the clock generator. Instead of exploiting that information in the driver,
it still depends on platform_data passing the chips .variant.

This removes the now redundant .variant from the platform_data and puts it in
i2c_device_id's .driver_data instead.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Sebastian Hesselbarth 2014-01-25 21:48:31 +01:00 committed by Mike Turquette
parent 8e31d19b93
commit 9d43dc7f40
3 changed files with 26 additions and 32 deletions
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28
drivers/clk/clk-si5351.c
View File

@ -1111,11 +1111,11 @@ static const struct of_device_id si5351_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, si5351_dt_ids);
static int si5351_dt_parse(struct i2c_client *client)
static int si5351_dt_parse(struct i2c_client *client,
enum si5351_variant variant)
{
struct device_node *child, *np = client->dev.of_node;
struct si5351_platform_data *pdata;
const struct of_device_id *match;
struct property *prop;
const __be32 *p;
int num = 0;
@ -1124,15 +1124,10 @@ static int si5351_dt_parse(struct i2c_client *client)
if (np == NULL)
return 0;
match = of_match_node(si5351_dt_ids, np);
if (match == NULL)
return -EINVAL;
pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->variant = (enum si5351_variant)match->data;
pdata->clk_xtal = of_clk_get(np, 0);
if (!IS_ERR(pdata->clk_xtal))
clk_put(pdata->clk_xtal);
@ -1163,7 +1158,7 @@ static int si5351_dt_parse(struct i2c_client *client)
pdata->pll_src[num] = SI5351_PLL_SRC_XTAL;
break;
case 1:
if (pdata->variant != SI5351_VARIANT_C) {
if (variant != SI5351_VARIANT_C) {
dev_err(&client->dev,
"invalid parent %d for pll %d\n",
val, num);
@ -1187,7 +1182,7 @@ static int si5351_dt_parse(struct i2c_client *client)
}
if (num >= 8 ||
(pdata->variant == SI5351_VARIANT_A3 && num >= 3)) {
(variant == SI5351_VARIANT_A3 && num >= 3)) {
dev_err(&client->dev, "invalid clkout %d\n", num);
return -EINVAL;
}
@ -1226,7 +1221,7 @@ static int si5351_dt_parse(struct i2c_client *client)
SI5351_CLKOUT_SRC_XTAL;
break;
case 3:
if (pdata->variant != SI5351_VARIANT_C) {
if (variant != SI5351_VARIANT_C) {
dev_err(&client->dev,
"invalid parent %d for clkout %d\n",
val, num);
@ -1307,6 +1302,7 @@ static int si5351_dt_parse(struct i2c_client *client)
static int si5351_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
enum si5351_variant variant = (enum si5351_variant)id->driver_data;
struct si5351_platform_data *pdata;
struct si5351_driver_data *drvdata;
struct clk_init_data init;
@ -1315,7 +1311,7 @@ static int si5351_i2c_probe(struct i2c_client *client,
u8 num_parents, num_clocks;
int ret, n;
ret = si5351_dt_parse(client);
ret = si5351_dt_parse(client, variant);
if (ret)
return ret;
@ -1331,7 +1327,7 @@ static int si5351_i2c_probe(struct i2c_client *client,
i2c_set_clientdata(client, drvdata);
drvdata->client = client;
drvdata->variant = pdata->variant;
drvdata->variant = variant;
drvdata->pxtal = pdata->clk_xtal;
drvdata->pclkin = pdata->clk_clkin;
@ -1568,10 +1564,10 @@ static int si5351_i2c_probe(struct i2c_client *client,
}
static const struct i2c_device_id si5351_i2c_ids[] = {
{ "si5351a", 0 },
{ "si5351a-msop", 0 },
{ "si5351b", 0 },
{ "si5351c", 0 },
{ "si5351a", SI5351_VARIANT_A },
{ "si5351a-msop", SI5351_VARIANT_A3 },
{ "si5351b", SI5351_VARIANT_B },
{ "si5351c", SI5351_VARIANT_C },
{ }
};
MODULE_DEVICE_TABLE(i2c, si5351_i2c_ids);

14
drivers/clk/clk-si5351.h
View File

@ -153,4 +153,18 @@
#define SI5351_XTAL_ENABLE (1<<6)
#define SI5351_MULTISYNTH_ENABLE (1<<4)
/**
* enum si5351_variant - SiLabs Si5351 chip variant
* @SI5351_VARIANT_A: Si5351A (8 output clocks, XTAL input)
* @SI5351_VARIANT_A3: Si5351A MSOP10 (3 output clocks, XTAL input)
* @SI5351_VARIANT_B: Si5351B (8 output clocks, XTAL/VXCO input)
* @SI5351_VARIANT_C: Si5351C (8 output clocks, XTAL/CLKIN input)
*/
enum si5351_variant {
SI5351_VARIANT_A = 1,
SI5351_VARIANT_A3 = 2,
SI5351_VARIANT_B = 3,
SI5351_VARIANT_C = 4,
};
#endif

16
include/linux/platform_data/si5351.h
View File

@ -7,20 +7,6 @@
struct clk;
/**
* enum si5351_variant - SiLabs Si5351 chip variant
* @SI5351_VARIANT_A: Si5351A (8 output clocks, XTAL input)
* @SI5351_VARIANT_A3: Si5351A MSOP10 (3 output clocks, XTAL input)
* @SI5351_VARIANT_B: Si5351B (8 output clocks, XTAL/VXCO input)
* @SI5351_VARIANT_C: Si5351C (8 output clocks, XTAL/CLKIN input)
*/
enum si5351_variant {
SI5351_VARIANT_A = 1,
SI5351_VARIANT_A3 = 2,
SI5351_VARIANT_B = 3,
SI5351_VARIANT_C = 4,
};
/**
* enum si5351_pll_src - Si5351 pll clock source
* @SI5351_PLL_SRC_DEFAULT: default, do not change eeprom config
@ -115,14 +101,12 @@ struct si5351_clkout_config {
/**
* struct si5351_platform_data - Platform data for the Si5351 clock driver
* @variant: Si5351 chip variant
* @clk_xtal: xtal input clock
* @clk_clkin: clkin input clock
* @pll_src: array of pll source clock setting
* @clkout: array of clkout configuration
*/
struct si5351_platform_data {
enum si5351_variant variant;
struct clk *clk_xtal;
struct clk *clk_clkin;
enum si5351_pll_src pll_src[2];