Thanks Joe. I'll send out a new patch set with your suggestions/fixes
shortly.
On 14-12-17 06:14 PM, Joe Perches wrote:
> On Wed, 2014-12-17 at 17:59 -0800, Jonathan Richardson wrote:
>> Add initial version of the Broadcom touchscreen driver.
>
> trivia:
>
>> diff --git a/drivers/input/touchscreen/bcm_iproc_tsc.c
>> b/drivers/input/touchscreen/bcm_iproc_tsc.c
>
>> +/* Bit values for REGCTL2 */
>> +#define TS_CONTROLLER_EN_BIT (1 << 16)
>> +#define TS_CONTROLLER_AVGDATA_SHIFT 8
>> +#define TS_CONTROLLER_AVGDATA_MASK (0x7 << TS_CONTROLLER_AVGDATA_SHIFT)
>> +#define TS_CONTROLLER_PWR_LDO (1<<5)
>> +#define TS_CONTROLLER_PWR_ADC (1<<4)
>> +#define TS_CONTROLLER_PWR_BGP (1<<3)
>> +#define TS_CONTROLLER_PWR_TS (1<<2)
>> +#define TS_WIRE_MODE_BIT (1<<1)
>
> Be nicer to use the same spacing around <<
> or maybe use the BIT macro.
>
> []
>
>> +static int get_tsc_config(struct device_node *np, struct iproc_ts_priv
>> *priv)
>> +{
>> + int ret;
>> + u32 val;
>> + struct device *dev = &priv->pdev->dev;
>> +
>> + priv->cfg_params = default_config;
>> +
>> + ret = of_property_read_u32(np, "scanning_period", &val);
>> + if (ret >= 0) {
>> + if ((1 <= val) && (val <= 256))
>> + priv->cfg_params.scanning_period = val;
>> + else {
>> + dev_err(dev, "scanning_period must be [1-256]");
>> + return -EINVAL;
>> + }
>
> ret is never used so I'd probably remove it
> from all these blocks.
>
> It's probably be nicer to invert the logic ald
> remove the else.
>
> There's a missing terminating newline too.
>
> Something like:
>
> if (of_property_read_u32(np, "scanning_period", &val) >= 0) {
> if (val < 1 || val > 256) {
> dev_err(dev, "scanning_period must be [1-256]\n");
> return -EINVAL;
> }
> priv->cfg_params.scanning_period = val;
> }
>
> etc...
>
>
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