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Date: Tue, 28 Jun 2022 22:04:30 -0700 From: Dmitry Torokhov <dmitry.torokhov@...il.com> To: Dario Binacchi <dario.binacchi@...rulasolutions.com> Cc: linux-kernel@...r.kernel.org, Michael Trimarchi <michael@...rulasolutions.com>, Marco Felsch <m.felsch@...gutronix.de>, Oliver Graute <oliver.graute@...oconnector.com>, linux-input@...r.kernel.org Subject: Re: [RESEND PATCH v4 3/6] Input: edt-ft5x06 - set report rate by dts property Hi Dario, On Tue, Jun 21, 2022 at 02:39:34PM +0200, Dario Binacchi wrote: > It allows to change the M06/M12 default scan rate on driver probing. > > Co-developed-by: Michael Trimarchi <michael@...rulasolutions.com> > Signed-off-by: Michael Trimarchi <michael@...rulasolutions.com> > Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com> > > --- > > (no changes since v3) > > Changes in v3: > - Check the lower and upper limits of the report-rate-hz value > - Convert the M06 report-rate-hz value > > drivers/input/touchscreen/edt-ft5x06.c | 30 ++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) > > diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c > index 77f061af5c61..843e8b0522f7 100644 > --- a/drivers/input/touchscreen/edt-ft5x06.c > +++ b/drivers/input/touchscreen/edt-ft5x06.c > @@ -1084,6 +1084,7 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client, > struct input_dev *input; > unsigned long irq_flags; > int error; > + u32 report_rate; > char fw_version[EDT_NAME_LEN]; > > dev_dbg(&client->dev, "probing for EDT FT5x06 I2C\n"); > @@ -1213,6 +1214,35 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client, > edt_ft5x06_ts_get_defaults(&client->dev, tsdata); > edt_ft5x06_ts_get_parameters(tsdata); > > + if (tsdata->reg_addr.reg_report_rate != NO_REGISTER && > + !of_property_read_u32(client->dev.of_node, "report-rate-hz", Unless there is a strong reason to use of-specific version of properties API, generic device property API is preferred. I changed this to device_property_read_u32(). > + &report_rate)) { > + tsdata->report_rate = report_rate; > + if (tsdata->version == EDT_M06) { > + if (report_rate < 30) > + report_rate = 30; > + else if (report_rate > 140) > + report_rate = 140; We have a nice macro clamp_val() for this. > + } else if (report_rate < 1) { > + report_rate = 1; > + } else if (report_rate > 255) > + report_rate = 255; Same here. I made the change and applied. > + > + if (report_rate != tsdata->report_rate) > + dev_warn(&client->dev, > + "report-rate %dHz is unsupported, use %dHz\n", > + tsdata->report_rate, report_rate); > + > + if (tsdata->version == EDT_M06) > + report_rate /= 10; > + > + tsdata->report_rate = report_rate; > + > + edt_ft5x06_register_write(tsdata, > + tsdata->reg_addr.reg_report_rate, > + tsdata->report_rate); > + } > + > dev_dbg(&client->dev, > "Model \"%s\", Rev. \"%s\", %dx%d sensors\n", > tsdata->name, fw_version, tsdata->num_x, tsdata->num_y); > -- > 2.32.0 > Thanks. -- Dmitry
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