ata: remove palmld pata driver

The PXA palmld machine was removed, so the pata driver is no
longer used and can be removed. There is a chance that some of
this code might be useful for turning some of the other PXA
PCMCIA host drivers into PATA drivers, but it's clear that
it would not work unmodified, and it seems unlikely that
someone would do this work.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

drivers/ata/Kconfig

@@ -1082,15 +1082,6 @@ config PATA_OPTI
 
 	  If unsure, say N.
 
-config PATA_PALMLD
-	tristate "Palm LifeDrive PATA support"
-	depends on MACH_PALMLD
-	help
-	  This option enables support for Palm LifeDrive's internal ATA
-	  port via the new ATA layer.
-
-	  If unsure, say N.
-
 config PATA_PCMCIA
 	tristate "PCMCIA PATA support"
 	depends on PCMCIA

drivers/ata/Makefile

@@ -105,7 +105,6 @@ obj-$(CONFIG_PATA_MPIIX)	+= pata_mpiix.o
 obj-$(CONFIG_PATA_NS87410)	+= pata_ns87410.o
 obj-$(CONFIG_PATA_OPTI)		+= pata_opti.o
 obj-$(CONFIG_PATA_PCMCIA)	+= pata_pcmcia.o
-obj-$(CONFIG_PATA_PALMLD)	+= pata_palmld.o
 obj-$(CONFIG_PATA_PLATFORM)	+= pata_platform.o
 obj-$(CONFIG_PATA_OF_PLATFORM)	+= pata_of_platform.o
 obj-$(CONFIG_PATA_RB532)	+= pata_rb532_cf.o

drivers/ata/pata_palmld.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * drivers/ata/pata_palmld.c
- *
- * Driver for IDE channel in Palm LifeDrive
- *
- * Based on research of:
- *		Alex Osborne <ato@meshy.org>
- *
- * Rewrite for mainline:
- *		Marek Vasut <marek.vasut@gmail.com>
- *
- * Rewritten version based on pata_ixp4xx_cf.c:
- * ixp4xx PATA/Compact Flash driver
- * Copyright (C) 2006-07 Tower Technologies
- * Author: Alessandro Zummo <a.zummo@towertech.it>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/libata.h>
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
-
-#include <scsi/scsi_host.h>
-
-#define DRV_NAME "pata_palmld"
-
-struct palmld_pata {
-	struct ata_host *host;
-	struct gpio_desc *power;
-	struct gpio_desc *reset;
-};
-
-static struct scsi_host_template palmld_sht = {
-	ATA_PIO_SHT(DRV_NAME),
-};
-
-static struct ata_port_operations palmld_port_ops = {
-	.inherits		= &ata_sff_port_ops,
-	.sff_data_xfer		= ata_sff_data_xfer32,
-	.cable_detect		= ata_cable_40wire,
-};
-
-static int palmld_pata_probe(struct platform_device *pdev)
-{
-	struct palmld_pata *lda;
-	struct ata_port *ap;
-	void __iomem *mem;
-	struct device *dev = &pdev->dev;
-	int ret;
-
-	lda = devm_kzalloc(dev, sizeof(*lda), GFP_KERNEL);
-	if (!lda)
-		return -ENOMEM;
-
-	/* allocate host */
-	lda->host = ata_host_alloc(dev, 1);
-	if (!lda->host)
-		return -ENOMEM;
-
-	/* remap drive's physical memory address */
-	mem = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(mem))
-		return PTR_ERR(mem);
-
-	/* request and activate power and reset GPIOs */
-	lda->power = devm_gpiod_get(dev, "power", GPIOD_OUT_HIGH);
-	if (IS_ERR(lda->power))
-		return PTR_ERR(lda->power);
-	lda->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
-	if (IS_ERR(lda->reset)) {
-		gpiod_set_value(lda->power, 0);
-		return PTR_ERR(lda->reset);
-	}
-
-	/* Assert reset to reset the drive */
-	gpiod_set_value(lda->reset, 1);
-	msleep(30);
-	gpiod_set_value(lda->reset, 0);
-	msleep(30);
-
-	/* setup the ata port */
-	ap = lda->host->ports[0];
-	ap->ops	= &palmld_port_ops;
-	ap->pio_mask = ATA_PIO4;
-	ap->flags |= ATA_FLAG_PIO_POLLING;
-
-	/* memory mapping voodoo */
-	ap->ioaddr.cmd_addr = mem + 0x10;
-	ap->ioaddr.altstatus_addr = mem + 0xe;
-	ap->ioaddr.ctl_addr = mem + 0xe;
-
-	/* start the port */
-	ata_sff_std_ports(&ap->ioaddr);
-
-	/* activate host */
-	ret = ata_host_activate(lda->host, 0, NULL, IRQF_TRIGGER_RISING,
-				&palmld_sht);
-	/* power down on failure */
-	if (ret) {
-		gpiod_set_value(lda->power, 0);
-		return ret;
-	}
-
-	platform_set_drvdata(pdev, lda);
-	return 0;
-}
-
-static int palmld_pata_remove(struct platform_device *pdev)
-{
-	struct palmld_pata *lda = platform_get_drvdata(pdev);
-
-	ata_platform_remove_one(pdev);
-
-	/* power down the HDD */
-	gpiod_set_value(lda->power, 0);
-
-	return 0;
-}
-
-static struct platform_driver palmld_pata_platform_driver = {
-	.driver	 = {
-		.name   = DRV_NAME,
-	},
-	.probe		= palmld_pata_probe,
-	.remove		= palmld_pata_remove,
-};
-
-module_platform_driver(palmld_pata_platform_driver);
-
-MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
-MODULE_DESCRIPTION("PalmLD PATA driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);