linux-kernel - [PATCH v1 5/6] gpio: dwapb: Get rid of legacy platform data

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Date:   Mon,  8 Jun 2020 16:42:59 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Serge Semin <fancer.lancer@...il.com>, linux-gpio@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-kernel@...r.kernel.org, Lee Jones <lee.jones@...aro.org>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 5/6] gpio: dwapb: Get rid of legacy platform data

Platform data is a legacy interface to supply device properties
to the driver. In this case we don't have anymore in-kernel users
for it. Just remove it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/gpio/gpio-dwapb.c                | 27 +++++++++++++++---------
 include/linux/platform_data/gpio-dwapb.h | 22 -------------------
 2 files changed, 17 insertions(+), 32 deletions(-)
 delete mode 100644 include/linux/platform_data/gpio-dwapb.h

diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index e3d7589434eb..de01b8943bd2 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -23,7 +23,6 @@
 #include <linux/property.h>
 #include <linux/reset.h>
 #include <linux/spinlock.h>
-#include <linux/platform_data/gpio-dwapb.h>
 #include <linux/slab.h>
 
 #include "gpiolib.h"
@@ -66,6 +65,19 @@
 
 #define DWAPB_NR_CLOCKS		2
 
+struct dwapb_port_property {
+	struct fwnode_handle *fwnode;
+	unsigned int idx;
+	unsigned int ngpio;
+	unsigned int gpio_base;
+	int irq[32];
+};
+
+struct dwapb_platform_data {
+	struct dwapb_port_property *properties;
+	unsigned int nports;
+};
+
 struct dwapb_gpio;
 
 #ifdef CONFIG_PM_SLEEP
@@ -633,17 +645,12 @@ static int dwapb_gpio_probe(struct platform_device *pdev)
 	unsigned int i;
 	struct dwapb_gpio *gpio;
 	int err;
+	struct dwapb_platform_data *pdata;
 	struct device *dev = &pdev->dev;
-	struct dwapb_platform_data *pdata = dev_get_platdata(dev);
-
-	if (!pdata) {
-		pdata = dwapb_gpio_get_pdata(dev);
-		if (IS_ERR(pdata))
-			return PTR_ERR(pdata);
-	}
 
-	if (!pdata->nports)
-		return -ENODEV;
+	pdata = dwapb_gpio_get_pdata(dev);
+	if (IS_ERR(pdata))
+		return PTR_ERR(pdata);
 
 	gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
 	if (!gpio)
diff --git a/include/linux/platform_data/gpio-dwapb.h b/include/linux/platform_data/gpio-dwapb.h
deleted file mode 100644
index a63010b6e898..000000000000
--- a/include/linux/platform_data/gpio-dwapb.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright(c) 2014 Intel Corporation.
- */
-
-#ifndef GPIO_DW_APB_H
-#define GPIO_DW_APB_H
-
-struct dwapb_port_property {
-	struct fwnode_handle *fwnode;
-	unsigned int	idx;
-	unsigned int	ngpio;
-	unsigned int	gpio_base;
-	int		irq[32];
-};
-
-struct dwapb_platform_data {
-	struct dwapb_port_property *properties;
-	unsigned int nports;
-};
-
-#endif
-- 
2.27.0.rc2