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authorDario Binacchi <dario.binacchi@amarulasolutions.com>2022-06-28 10:56:49 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2022-06-28 22:00:00 -0700
commit5bcee83a406c6136fe011b7307f0f034d4e1e20b (patch)
tree41b5b1afd5853b1ecc245498edbb7f771845cfb7 /drivers
parent23ea98f4bafa0c4639401747a354e09a5e7686da (diff)
Input: edt-ft5x06 - set report rate by dts property
It allows to change the M06/M12 default scan rate on driver probing. Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> Link: https://lore.kernel.org/r/20220621123937.1330389-4-dario.binacchi@amarulasolutions.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/touchscreen/edt-ft5x06.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 77f061af5c61..8c99819a50a4 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -24,6 +24,7 @@
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/property.h>
#include <linux/ratelimit.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
@@ -1084,6 +1085,7 @@ 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 +1215,27 @@ 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 &&
+ !device_property_read_u32(&client->dev,
+ "report-rate-hz", &report_rate)) {
+ if (tsdata->version == EDT_M06)
+ tsdata->report_rate = clamp_val(report_rate, 30, 140);
+ else
+ tsdata->report_rate = clamp_val(report_rate, 1, 255);
+
+ if (report_rate != tsdata->report_rate)
+ dev_warn(&client->dev,
+ "report-rate %dHz is unsupported, use %dHz\n",
+ report_rate, tsdata->report_rate);
+
+ if (tsdata->version == EDT_M06)
+ tsdata->report_rate /= 10;
+
+ 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);