Input: stmpe-ts - enforce device tree only mode

The STMPE MFD is only used with device tree configured systems (and STMPE
MFD core depends on OF), so force the configuration to come from device
tree only.

Tested-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

2 files changed, 6 insertions, 24 deletions

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 547f67d..a398d63 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -958,6 +958,7 @@ config TOUCHSCREEN_ST1232
 config TOUCHSCREEN_STMPE
 	tristate "STMicroelectronics STMPE touchscreens"
 	depends on MFD_STMPE
+	depends on (OF || COMPILE_TEST)
 	help
 	  Say Y here if you want support for STMicroelectronics
 	  STMPE touchscreen controllers.
diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c
index e4977c6..e414d43 100644
--- a/drivers/input/touchscreen/stmpe-ts.c
+++ b/drivers/input/touchscreen/stmpe-ts.c
@@ -267,27 +267,10 @@ static void stmpe_ts_close(struct input_dev *dev)
 static void stmpe_ts_get_platform_info(struct platform_device *pdev,
 					struct stmpe_touch *ts)
 {
-	struct stmpe *stmpe = dev_get_drvdata(pdev->dev.parent);
 	struct device_node *np = pdev->dev.of_node;
-	struct stmpe_ts_platform_data *ts_pdata = NULL;
-
-	ts->stmpe = stmpe;
-
-	if (stmpe->pdata && stmpe->pdata->ts) {
-		ts_pdata = stmpe->pdata->ts;
-
-		ts->sample_time = ts_pdata->sample_time;
-		ts->mod_12b = ts_pdata->mod_12b;
-		ts->ref_sel = ts_pdata->ref_sel;
-		ts->adc_freq = ts_pdata->adc_freq;
-		ts->ave_ctrl = ts_pdata->ave_ctrl;
-		ts->touch_det_delay = ts_pdata->touch_det_delay;
-		ts->settling = ts_pdata->settling;
-		ts->fraction_z = ts_pdata->fraction_z;
-		ts->i_drive = ts_pdata->i_drive;
-	} else if (np) {
-		u32 val;
+	u32 val;
 
+	if (np) {
 		if (!of_property_read_u32(np, "st,sample-time", &val))
 			ts->sample_time = val;
 		if (!of_property_read_u32(np, "st,mod-12b", &val))
@@ -311,6 +294,7 @@ static void stmpe_ts_get_platform_info(struct platform_device *pdev,
 
 static int stmpe_input_probe(struct platform_device *pdev)
 {
+	struct stmpe *stmpe = dev_get_drvdata(pdev->dev.parent);
 	struct stmpe_touch *ts;
 	struct input_dev *idev;
 	int error;
@@ -329,6 +313,7 @@ static int stmpe_input_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	platform_set_drvdata(pdev, ts);
+	ts->stmpe = stmpe;
 	ts->idev = idev;
 	ts->dev = &pdev->dev;
 
@@ -351,14 +336,13 @@ static int stmpe_input_probe(struct platform_device *pdev)
 	idev->name = STMPE_TS_NAME;
 	idev->phys = STMPE_TS_NAME"/input0";
 	idev->id.bustype = BUS_I2C;
-	idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
-	idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
 
 	idev->open = stmpe_ts_open;
 	idev->close = stmpe_ts_close;
 
 	input_set_drvdata(idev, ts);
 
+	input_set_capability(idev, EV_KEY, BTN_TOUCH);
 	input_set_abs_params(idev, ABS_X, 0, XY_MASK, 0, 0);
 	input_set_abs_params(idev, ABS_Y, 0, XY_MASK, 0, 0);
 	input_set_abs_params(idev, ABS_PRESSURE, 0x0, 0xff, 0, 0);
@@ -390,15 +374,12 @@ static struct platform_driver stmpe_ts_driver = {
 };
 module_platform_driver(stmpe_ts_driver);
 
-#ifdef CONFIG_OF
 static const struct of_device_id stmpe_ts_ids[] = {
 	{ .compatible = "st,stmpe-ts", },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, stmpe_ts_ids);
-#endif
 
 MODULE_AUTHOR("Luotao Fu <l.fu@pengutronix.de>");
 MODULE_DESCRIPTION("STMPEXXX touchscreen driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" STMPE_TS_NAME);