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path: root/drivers/clk/clk-si544.c
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Diffstat (limited to 'drivers/clk/clk-si544.c')
-rw-r--r--drivers/clk/clk-si544.c53
1 files changed, 16 insertions, 37 deletions
diff --git a/drivers/clk/clk-si544.c b/drivers/clk/clk-si544.c
index 22925968aa35..c88650558f32 100644
--- a/drivers/clk/clk-si544.c
+++ b/drivers/clk/clk-si544.c
@@ -56,17 +56,11 @@
#define DELTA_M_FRAC_NUM 19
#define DELTA_M_FRAC_DEN 20000
-enum si544_speed_grade {
- si544a,
- si544b,
- si544c,
-};
-
struct clk_si544 {
struct clk_hw hw;
struct regmap *regmap;
struct i2c_client *i2c_client;
- enum si544_speed_grade speed_grade;
+ unsigned long max_freq;
};
#define to_clk_si544(_hw) container_of(_hw, struct clk_si544, hw)
@@ -196,24 +190,10 @@ static int si544_set_muldiv(struct clk_si544 *data,
static bool is_valid_frequency(const struct clk_si544 *data,
unsigned long frequency)
{
- unsigned long max_freq = 0;
-
if (frequency < SI544_MIN_FREQ)
return false;
- switch (data->speed_grade) {
- case si544a:
- max_freq = 1500000000;
- break;
- case si544b:
- max_freq = 800000000;
- break;
- case si544c:
- max_freq = 350000000;
- break;
- }
-
- return frequency <= max_freq;
+ return frequency <= data->max_freq;
}
/* Calculate divider settings for a given frequency */
@@ -446,24 +426,15 @@ static bool si544_regmap_is_volatile(struct device *dev, unsigned int reg)
static const struct regmap_config si544_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.max_register = SI544_REG_PAGE_SELECT,
.volatile_reg = si544_regmap_is_volatile,
};
-static const struct i2c_device_id si544_id[] = {
- { "si544a", si544a },
- { "si544b", si544b },
- { "si544c", si544c },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, si544_id);
-
static int si544_probe(struct i2c_client *client)
{
struct clk_si544 *data;
struct clk_init_data init;
- const struct i2c_device_id *id = i2c_match_id(si544_id, client);
int err;
data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
@@ -475,7 +446,7 @@ static int si544_probe(struct i2c_client *client)
init.num_parents = 0;
data->hw.init = &init;
data->i2c_client = client;
- data->speed_grade = id->driver_data;
+ data->max_freq = (uintptr_t)i2c_get_match_data(client);
if (of_property_read_string(client->dev.of_node, "clock-output-names",
&init.name))
@@ -507,11 +478,19 @@ static int si544_probe(struct i2c_client *client)
return 0;
}
+static const struct i2c_device_id si544_id[] = {
+ { "si544a", 1500000000 },
+ { "si544b", 800000000 },
+ { "si544c", 350000000 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, si544_id);
+
static const struct of_device_id clk_si544_of_match[] = {
- { .compatible = "silabs,si544a" },
- { .compatible = "silabs,si544b" },
- { .compatible = "silabs,si544c" },
- { },
+ { .compatible = "silabs,si544a", .data = (void *)1500000000 },
+ { .compatible = "silabs,si544b", .data = (void *)800000000 },
+ { .compatible = "silabs,si544c", .data = (void *)350000000 },
+ { }
};
MODULE_DEVICE_TABLE(of, clk_si544_of_match);