linux-kernel - [PATCH 03/11] Input: synaptics-rmi4 - have only one struct platform data

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Message-Id: <1471512289-10648-4-git-send-email-benjamin.tissoires@redhat.com>
Date:	Thu, 18 Aug 2016 11:24:41 +0200
From:	Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Lyude Paul <thatslyude@...il.com>,
	Andrew Duggan <aduggan@...aptics.com>,
	Christopher Heiny <cheiny@...aptics.com>,
	Dennis Wassenberg <dennis.wassenberg@...unet.com>
Cc:	Peter Hutterer <peter.hutterer@...-t.net>,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org
Subject: [PATCH 03/11] Input: synaptics-rmi4 - have only one struct platform data

If struct rmi_device_platform_data contains pointers to other struct,
it gets difficult to allocate a fixed size struct and copy it over between
drivers.

Change the pointers into a struct and change the code in rmi4 accordingly.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>

---

this patch will conflict with Andrew's patch to switch hid-rmi
to use rmi4_core...
---
 drivers/input/rmi4/rmi_f11.c | 4 ++--
 drivers/input/rmi4/rmi_f12.c | 4 ++--
 drivers/input/rmi4/rmi_f30.c | 7 +++----
 include/linux/rmi.h          | 4 ++--
 4 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c
index 20c7134..b14a7b6 100644
--- a/drivers/input/rmi4/rmi_f11.c
+++ b/drivers/input/rmi4/rmi_f11.c
@@ -1063,8 +1063,8 @@ static int rmi_f11_initialize(struct rmi_function *fn)
 		rc = rmi_2d_sensor_of_probe(&fn->dev, &f11->sensor_pdata);
 		if (rc)
 			return rc;
-	} else if (pdata->sensor_pdata) {
-		f11->sensor_pdata = *pdata->sensor_pdata;
+	} else {
+		f11->sensor_pdata = pdata->sensor_pdata;
 	}
 
 	f11->rezero_wait_ms = f11->sensor_pdata.rezero_wait;
diff --git a/drivers/input/rmi4/rmi_f12.c b/drivers/input/rmi4/rmi_f12.c
index 332c02f..a631bed 100644
--- a/drivers/input/rmi4/rmi_f12.c
+++ b/drivers/input/rmi4/rmi_f12.c
@@ -274,8 +274,8 @@ static int rmi_f12_probe(struct rmi_function *fn)
 		ret = rmi_2d_sensor_of_probe(&fn->dev, &f12->sensor_pdata);
 		if (ret)
 			return ret;
-	} else if (pdata->sensor_pdata) {
-		f12->sensor_pdata = *pdata->sensor_pdata;
+	} else {
+		f12->sensor_pdata = pdata->sensor_pdata;
 	}
 
 	ret = rmi_read_register_desc(rmi_dev, query_addr,
diff --git a/drivers/input/rmi4/rmi_f30.c b/drivers/input/rmi4/rmi_f30.c
index 760aff1..7990bb0 100644
--- a/drivers/input/rmi4/rmi_f30.c
+++ b/drivers/input/rmi4/rmi_f30.c
@@ -192,7 +192,7 @@ static int rmi_f30_config(struct rmi_function *fn)
 				rmi_get_platform_data(fn->rmi_dev);
 	int error;
 
-	if (pdata->f30_data && pdata->f30_data->disable) {
+	if (pdata && pdata->f30_data.disable) {
 		drv->clear_irq_bits(fn->rmi_dev, fn->irq_mask);
 	} else {
 		/* Write Control Register values back to device */
@@ -362,8 +362,7 @@ static inline int rmi_f30_initialize(struct rmi_function *fn)
 				 * f30->has_mech_mouse_btns, but I am
 				 * not sure, so use only the pdata info
 				 */
-				if (pdata->f30_data &&
-				    pdata->f30_data->buttonpad)
+				if (pdata && pdata->f30_data.buttonpad)
 					break;
 			}
 		}
@@ -378,7 +377,7 @@ static int rmi_f30_probe(struct rmi_function *fn)
 	const struct rmi_device_platform_data *pdata =
 				rmi_get_platform_data(fn->rmi_dev);
 
-	if (pdata->f30_data && pdata->f30_data->disable)
+	if (pdata && pdata->f30_data.disable)
 		return 0;
 
 	rc = rmi_f30_initialize(fn);
diff --git a/include/linux/rmi.h b/include/linux/rmi.h
index e0aca14..4a071e8 100644
--- a/include/linux/rmi.h
+++ b/include/linux/rmi.h
@@ -211,9 +211,9 @@ struct rmi_device_platform_data {
 	struct rmi_device_platform_data_spi spi_data;
 
 	/* function handler pdata */
-	struct rmi_2d_sensor_platform_data *sensor_pdata;
+	struct rmi_2d_sensor_platform_data sensor_pdata;
 	struct rmi_f01_power_management power_management;
-	struct rmi_f30_data *f30_data;
+	struct rmi_f30_data f30_data;
 };
 
 /**
-- 
2.5.5