ARM: integrator: Retire LM and IM-PD1 boardfile code

We now support probing and populating logical modules and
the IM-PD1 example module in particular directly from the
device tree using the LM bus driver.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-integrator/Makefile

@@ -5,7 +5,6 @@
 
 # Object file lists.
 
-obj-y					:= core.o lm.o
+obj-y					:= core.o
 obj-$(CONFIG_ARCH_INTEGRATOR_AP)	+= integrator_ap.o
 obj-$(CONFIG_ARCH_INTEGRATOR_CP)	+= integrator_cp.o
-obj-$(CONFIG_INTEGRATOR_IMPD1)		+= impd1.o

arch/arm/mach-integrator/impd1.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#define IMPD1_LEDS	0x0c
-#define IMPD1_INT	0x10
-#define IMPD1_SW	0x14
-#define IMPD1_CTRL	0x18
-
-#define IMPD1_CTRL_DISP_LCD	(0 << 0)
-#define IMPD1_CTRL_DISP_VGA	(1 << 0)
-#define IMPD1_CTRL_DISP_LCD1	(2 << 0)
-#define IMPD1_CTRL_DISP_ENABLE	(1 << 2)
-#define IMPD1_CTRL_DISP_MASK	(7 << 0)
-
-struct device;
-
-void impd1_tweak_control(struct device *dev, u32 mask, u32 val);

arch/arm/mach-integrator/integrator_ap.c

@@ -23,7 +23,6 @@
 #include "hardware.h"
 #include "cm.h"
 #include "common.h"
-#include "lm.h"
 
 /* Regmap to the AP system controller */
 static struct regmap *ap_syscon_map;
@@ -174,10 +173,7 @@ static const struct of_device_id ap_syscon_match[] = {
 
 static void __init ap_init_of(void)
 {
-	u32 sc_dec;
 	struct device_node *syscon;
-	int ret;
-	int i;
 
 	of_platform_default_populate(NULL, ap_auxdata_lookup, NULL);
 
@@ -189,33 +185,6 @@ static void __init ap_init_of(void)
 		pr_crit("could not find Integrator/AP system controller\n");
 		return;
 	}
-
-	ret = regmap_read(ap_syscon_map,
-			  INTEGRATOR_SC_DEC_OFFSET,
-			  &sc_dec);
-	if (ret) {
-		pr_crit("could not read from Integrator/AP syscon\n");
-		return;
-	}
-
-	for (i = 0; i < 4; i++) {
-		struct lm_device *lmdev;
-
-		if ((sc_dec & (16 << i)) == 0)
-			continue;
-
-		lmdev = kzalloc(sizeof(struct lm_device), GFP_KERNEL);
-		if (!lmdev)
-			continue;
-
-		lmdev->resource.start = 0xc0000000 + 0x10000000 * i;
-		lmdev->resource.end = lmdev->resource.start + 0x0fffffff;
-		lmdev->resource.flags = IORESOURCE_MEM;
-		lmdev->irq = irq_of_parse_and_map(syscon, i);
-		lmdev->id = i;
-
-		lm_device_register(lmdev);
-	}
 }
 
 static const char * ap_dt_board_compat[] = {

arch/arm/mach-integrator/lm.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *  linux/arch/arm/mach-integrator/lm.c
- *
- *  Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
- */
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-
-#include "lm.h"
-
-#define to_lm_device(d)	container_of(d, struct lm_device, dev)
-#define to_lm_driver(d)	container_of(d, struct lm_driver, drv)
-
-static int lm_match(struct device *dev, struct device_driver *drv)
-{
-	return 1;
-}
-
-static int lm_bus_probe(struct device *dev)
-{
-	struct lm_device *lmdev = to_lm_device(dev);
-	struct lm_driver *lmdrv = to_lm_driver(dev->driver);
-
-	return lmdrv->probe(lmdev);
-}
-
-static int lm_bus_remove(struct device *dev)
-{
-	struct lm_device *lmdev = to_lm_device(dev);
-	struct lm_driver *lmdrv = to_lm_driver(dev->driver);
-
-	if (lmdrv->remove)
-		lmdrv->remove(lmdev);
-	return 0;
-}
-
-static struct bus_type lm_bustype = {
-	.name		= "logicmodule",
-	.match		= lm_match,
-	.probe		= lm_bus_probe,
-	.remove		= lm_bus_remove,
-//	.suspend	= lm_bus_suspend,
-//	.resume		= lm_bus_resume,
-};
-
-static int __init lm_init(void)
-{
-	return bus_register(&lm_bustype);
-}
-
-postcore_initcall(lm_init);
-
-int lm_driver_register(struct lm_driver *drv)
-{
-	drv->drv.bus = &lm_bustype;
-	return driver_register(&drv->drv);
-}
-
-void lm_driver_unregister(struct lm_driver *drv)
-{
-	driver_unregister(&drv->drv);
-}
-
-static void lm_device_release(struct device *dev)
-{
-	struct lm_device *d = to_lm_device(dev);
-
-	kfree(d);
-}
-
-int lm_device_register(struct lm_device *dev)
-{
-	int ret;
-
-	dev->dev.release = lm_device_release;
-	dev->dev.bus = &lm_bustype;
-
-	ret = dev_set_name(&dev->dev, "lm%d", dev->id);
-	if (ret)
-		return ret;
-	dev->resource.name = dev_name(&dev->dev);
-
-	ret = request_resource(&iomem_resource, &dev->resource);
-	if (ret == 0) {
-		ret = device_register(&dev->dev);
-		if (ret)
-			release_resource(&dev->resource);
-	}
-	return ret;
-}
-
-EXPORT_SYMBOL(lm_driver_register);
-EXPORT_SYMBOL(lm_driver_unregister);

arch/arm/mach-integrator/lm.h

-/* SPDX-License-Identifier: GPL-2.0 */
-
-struct lm_device {
-	struct device		dev;
-	struct resource		resource;
-	unsigned int		irq;
-	unsigned int		id;
-};
-
-struct lm_driver {
-	struct device_driver	drv;
-	int			(*probe)(struct lm_device *);
-	void			(*remove)(struct lm_device *);
-	int			(*suspend)(struct lm_device *, pm_message_t);
-	int			(*resume)(struct lm_device *);
-};
-
-int lm_driver_register(struct lm_driver *drv);
-void lm_driver_unregister(struct lm_driver *drv);
-
-int lm_device_register(struct lm_device *dev);
-
-#define lm_get_drvdata(lm)	dev_get_drvdata(&(lm)->dev)
-#define lm_set_drvdata(lm,d)	dev_set_drvdata(&(lm)->dev, d)