diff options
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/clk-versaclock5.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c index a430128a4573..c6d3b1ab3d55 100644 --- a/drivers/clk/clk-versaclock5.c +++ b/drivers/clk/clk-versaclock5.c @@ -907,6 +907,7 @@ static const struct of_device_id clk_vc5_of_match[]; static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) { + unsigned int oe, sd, src_mask = 0, src_val = 0; struct vc5_driver_data *vc5; struct clk_init_data init; const char *parent_names[2]; @@ -934,6 +935,29 @@ static int vc5_probe(struct i2c_client *client, const struct i2c_device_id *id) return dev_err_probe(&client->dev, PTR_ERR(vc5->regmap), "failed to allocate register map\n"); + ret = of_property_read_u32(client->dev.of_node, "idt,shutdown", &sd); + if (!ret) { + src_mask |= VC5_PRIM_SRC_SHDN_EN_GBL_SHDN; + if (sd) + src_val |= VC5_PRIM_SRC_SHDN_EN_GBL_SHDN; + } else if (ret != -EINVAL) { + return dev_err_probe(&client->dev, ret, + "could not read idt,shutdown\n"); + } + + ret = of_property_read_u32(client->dev.of_node, + "idt,output-enable-active", &oe); + if (!ret) { + src_mask |= VC5_PRIM_SRC_SHDN_SP; + if (oe) + src_val |= VC5_PRIM_SRC_SHDN_SP; + } else if (ret != -EINVAL) { + return dev_err_probe(&client->dev, ret, + "could not read idt,output-enable-active\n"); + } + + regmap_update_bits(vc5->regmap, VC5_PRIM_SRC_SHDN, src_mask, src_val); + /* Register clock input mux */ memset(&init, 0, sizeof(init)); |