linux-kernel - [PATCH] mfd: timberdale: attach device properties to tsc2007 board info

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Message-ID: <ZoWg89A8C4gylTGX@google.com>
Date: Wed, 3 Jul 2024 12:05:23 -0700
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Lee Jones <lee@...nel.org>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: timberdale: attach device properties to tsc2007 board
 info

Switch over to using software nodes/properties to describe the
touchscreen instead of using the legacy platform data. This will
allow to drop support for the platform data from tsc2007 driver
and rely solely on the generic driver properties.

Note: "model" is not part of defined device propertioes and is not
used by the tsc2007 driver, so it can be safely dropped.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 drivers/mfd/timberdale.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c
index 07e5aa10a146..2fb8e850a81e 100644
--- a/drivers/mfd/timberdale.c
+++ b/drivers/mfd/timberdale.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/mfd/core.h>
+#include <linux/property.h>
 #include <linux/slab.h>
 
 #include <linux/timb_gpio.h>
@@ -25,7 +26,6 @@
 #include <linux/spi/max7301.h>
 #include <linux/spi/mc33880.h>
 
-#include <linux/platform_data/tsc2007.h>
 #include <linux/platform_data/media/timb_radio.h>
 #include <linux/platform_data/media/timb_video.h>
 
@@ -49,16 +49,21 @@ struct timberdale_device {
 
 /*--------------------------------------------------------------------------*/
 
-static struct tsc2007_platform_data timberdale_tsc2007_platform_data = {
-	.model = 2003,
-	.x_plate_ohms = 100
+static const struct property_entry timberdale_tsc2007_properties[] = {
+	PROPERTY_ENTRY_U32("ti,x-plate-ohms", 100),
+	{ }
+};
+
+static const struct software_node timberdale_tsc2007_node = {
+	.name = "tsc2007",
+	.properties = timberdale_tsc2007_properties,
 };
 
 static struct i2c_board_info timberdale_i2c_board_info[] = {
 	{
 		I2C_BOARD_INFO("tsc2007", 0x48),
-		.platform_data = &timberdale_tsc2007_platform_data,
-		.irq = IRQ_TIMBERDALE_TSC_INT
+		.irq = IRQ_TIMBERDALE_TSC_INT,
+		.swnode = &timberdale_tsc2007_node,
 	},
 };
 
-- 
2.45.2.803.g4e1b14247a-goog


-- 
Dmitry