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| author | Andi Shyti <andi.shyti@kernel.org> | 2023-03-18 00:33:37 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2023-03-29 21:07:27 +0200 |
| commit | be40a3ae719f406069cb4a0f59332dac51850d2a (patch) | |
| tree | 1714d0854d53ce908794cdc82f8f9ed0d93a6633 /drivers/i2c | |
| parent | dt-bindings: i2c: mpc: Mark "fsl,timeout" as deprecated (diff) | |
| download | linux-be40a3ae719f406069cb4a0f59332dac51850d2a.tar.xz linux-be40a3ae719f406069cb4a0f59332dac51850d2a.zip | |
i2c: mpc: Use of_property_read_u32 instead of of_get_property
"of_property_read_u32()" is preferred to "of_get_property()" for
retrieving u32 from the device tree. Replace it.
Suggested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-mpc.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index bec0c5dc20d1..02baba2284e2 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -770,7 +770,6 @@ static const struct i2c_algorithm mpc_algo = { static struct i2c_adapter mpc_ops = { .owner = THIS_MODULE, .algo = &mpc_algo, - .timeout = HZ, }; static struct i2c_bus_recovery_info fsl_i2c_recovery_info = { @@ -781,11 +780,9 @@ static int fsl_i2c_probe(struct platform_device *op) { const struct mpc_i2c_data *data; struct mpc_i2c *i2c; - const u32 *prop; - u32 clock = MPC_I2C_CLOCK_LEGACY; - int result = 0; - int plen; struct clk *clk; + int result; + u32 clock; int err; i2c = devm_kzalloc(&op->dev, sizeof(*i2c), GFP_KERNEL); @@ -831,10 +828,10 @@ static int fsl_i2c_probe(struct platform_device *op) if (of_property_read_bool(op->dev.of_node, "fsl,preserve-clocking")) { clock = MPC_I2C_CLOCK_PRESERVE; } else { - prop = of_get_property(op->dev.of_node, "clock-frequency", - &plen); - if (prop && plen == sizeof(u32)) - clock = *prop; + result = of_property_read_u32(op->dev.of_node, + "clock-frequency", &clock); + if (result) + clock = MPC_I2C_CLOCK_LEGACY; } data = device_get_match_data(&op->dev); @@ -846,12 +843,16 @@ static int fsl_i2c_probe(struct platform_device *op) mpc_i2c_setup_8xxx(op->dev.of_node, i2c, clock); } - prop = of_get_property(op->dev.of_node, "fsl,timeout", &plen); - if (prop && plen == sizeof(u32)) { - mpc_ops.timeout = *prop * HZ / 1000000; + result = of_property_read_u32(op->dev.of_node, + "fsl,timeout", &mpc_ops.timeout); + if (!result) { + mpc_ops.timeout *= HZ / 1000000; if (mpc_ops.timeout < 5) mpc_ops.timeout = 5; + } else { + mpc_ops.timeout = HZ; } + dev_info(i2c->dev, "timeout %u us\n", mpc_ops.timeout * 1000000 / HZ); if (of_property_read_bool(op->dev.of_node, "fsl,i2c-erratum-a004447")) |