diff options
Diffstat (limited to 'drivers/clk/clk-si521xx.c')
| -rw-r--r-- | drivers/clk/clk-si521xx.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/drivers/clk/clk-si521xx.c b/drivers/clk/clk-si521xx.c index 4eaf1b53f06b..4ed4e1a5f4f2 100644 --- a/drivers/clk/clk-si521xx.c +++ b/drivers/clk/clk-si521xx.c @@ -96,7 +96,7 @@ static int si521xx_regmap_i2c_write(void *context, unsigned int reg, unsigned int val) { struct i2c_client *i2c = context; - const u8 data[3] = { reg, 1, val }; + const u8 data[2] = { reg, val }; const int count = ARRAY_SIZE(data); int ret; @@ -146,7 +146,7 @@ static int si521xx_regmap_i2c_read(void *context, unsigned int reg, static const struct regmap_config si521xx_regmap_config = { .reg_bits = 8, .val_bits = 8, - .cache_type = REGCACHE_NONE, + .cache_type = REGCACHE_FLAT, .max_register = SI521XX_REG_DA, .rd_table = &si521xx_readable_table, .wr_table = &si521xx_writeable_table, @@ -164,15 +164,17 @@ static unsigned long si521xx_diff_recalc_rate(struct clk_hw *hw, return (unsigned long)rate; } -static long si521xx_diff_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int si521xx_diff_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { unsigned long best_parent; - best_parent = (rate / SI521XX_DIFF_MULT) * SI521XX_DIFF_DIV; - *prate = clk_hw_round_rate(clk_hw_get_parent(hw), best_parent); + best_parent = (req->rate / SI521XX_DIFF_MULT) * SI521XX_DIFF_DIV; + req->best_parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), best_parent); - return (*prate / SI521XX_DIFF_DIV) * SI521XX_DIFF_MULT; + req->rate = (req->best_parent_rate / SI521XX_DIFF_DIV) * SI521XX_DIFF_MULT; + + return 0; } static int si521xx_diff_set_rate(struct clk_hw *hw, unsigned long rate, @@ -208,7 +210,7 @@ static void si521xx_diff_unprepare(struct clk_hw *hw) } static const struct clk_ops si521xx_diff_clk_ops = { - .round_rate = si521xx_diff_round_rate, + .determine_rate = si521xx_diff_determine_rate, .set_rate = si521xx_diff_set_rate, .recalc_rate = si521xx_diff_recalc_rate, .prepare = si521xx_diff_prepare, @@ -279,11 +281,12 @@ si521xx_of_clk_get(struct of_phandle_args *clkspec, void *data) static int si521xx_probe(struct i2c_client *client) { - const u16 chip_info = (u16)(uintptr_t)device_get_match_data(&client->dev); + const u16 chip_info = (u16)(uintptr_t)i2c_get_match_data(client); const struct clk_parent_data clk_parent_data = { .index = 0 }; - struct si521xx *si; - unsigned char name[6] = "DIFF0"; + const u8 data[3] = { SI521XX_REG_BC, 1, 1 }; + unsigned char name[16] = "DIFF0"; struct clk_init_data init = {}; + struct si521xx *si; int i, ret; if (!chip_info) @@ -308,14 +311,14 @@ static int si521xx_probe(struct i2c_client *client) "Failed to allocate register map\n"); /* Always read back 1 Byte via I2C */ - ret = regmap_write(si->regmap, SI521XX_REG_BC, 1); + ret = i2c_master_send(client, data, ARRAY_SIZE(data)); if (ret < 0) return ret; /* Register clock */ for (i = 0; i < hweight16(chip_info); i++) { memset(&init, 0, sizeof(init)); - snprintf(name, 6, "DIFF%d", i); + snprintf(name, sizeof(name), "DIFF%d", i); init.name = name; init.ops = &si521xx_diff_clk_ops; init.parent_data = &clk_parent_data; |