From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition size
---
kernel/drivers/ata/pata_palmld.c | 89 ++++++++++++++++++++++----------------------
1 files changed, 45 insertions(+), 44 deletions(-)
diff --git a/kernel/drivers/ata/pata_palmld.c b/kernel/drivers/ata/pata_palmld.c
index d071ab6..2448441 100644
--- a/kernel/drivers/ata/pata_palmld.c
+++ b/kernel/drivers/ata/pata_palmld.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* drivers/ata/pata_palmld.c
*
@@ -13,11 +14,6 @@
* ixp4xx PATA/Compact Flash driver
* Copyright (C) 2006-07 Tower Technologies
* Author: Alessandro Zummo <a.zummo@towertech.it>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
*/
#include <linux/kernel.h>
@@ -26,16 +22,17 @@
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <scsi/scsi_host.h>
#include <mach/palmld.h>
#define DRV_NAME "pata_palmld"
-static struct gpio palmld_hdd_gpios[] = {
- { GPIO_NR_PALMLD_IDE_PWEN, GPIOF_INIT_HIGH, "HDD Power" },
- { GPIO_NR_PALMLD_IDE_RESET, GPIOF_INIT_LOW, "HDD Reset" },
+struct palmld_pata {
+ struct ata_host *host;
+ struct gpio_desc *power;
+ struct gpio_desc *reset;
};
static struct scsi_host_template palmld_sht = {
@@ -50,39 +47,44 @@
static int palmld_pata_probe(struct platform_device *pdev)
{
- struct ata_host *host;
+ 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 */
- host = ata_host_alloc(&pdev->dev, 1);
- if (!host) {
- ret = -ENOMEM;
- goto err1;
- }
+ lda->host = ata_host_alloc(dev, 1);
+ if (!lda->host)
+ return -ENOMEM;
/* remap drive's physical memory address */
- mem = devm_ioremap(&pdev->dev, PALMLD_IDE_PHYS, 0x1000);
- if (!mem) {
- ret = -ENOMEM;
- goto err1;
+ mem = devm_ioremap(dev, PALMLD_IDE_PHYS, 0x1000);
+ if (!mem)
+ return -ENOMEM;
+
+ /* 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);
}
- /* request and activate power GPIO, IRQ GPIO */
- ret = gpio_request_array(palmld_hdd_gpios,
- ARRAY_SIZE(palmld_hdd_gpios));
- if (ret)
- goto err1;
-
- /* reset the drive */
- gpio_set_value(GPIO_NR_PALMLD_IDE_RESET, 0);
+ /* Assert reset to reset the drive */
+ gpiod_set_value(lda->reset, 1);
msleep(30);
- gpio_set_value(GPIO_NR_PALMLD_IDE_RESET, 1);
+ gpiod_set_value(lda->reset, 0);
msleep(30);
/* setup the ata port */
- ap = host->ports[0];
+ ap = lda->host->ports[0];
ap->ops = &palmld_port_ops;
ap->pio_mask = ATA_PIO4;
ap->flags |= ATA_FLAG_PIO_POLLING;
@@ -96,27 +98,26 @@
ata_sff_std_ports(&ap->ioaddr);
/* activate host */
- ret = ata_host_activate(host, 0, NULL, IRQF_TRIGGER_RISING,
- &palmld_sht);
- if (ret)
- goto err2;
+ 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;
+ }
- return ret;
-
-err2:
- gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios));
-err1:
- return ret;
+ platform_set_drvdata(pdev, lda);
+ return 0;
}
-static int palmld_pata_remove(struct platform_device *dev)
+static int palmld_pata_remove(struct platform_device *pdev)
{
- ata_platform_remove_one(dev);
+ struct palmld_pata *lda = platform_get_drvdata(pdev);
+
+ ata_platform_remove_one(pdev);
/* power down the HDD */
- gpio_set_value(GPIO_NR_PALMLD_IDE_PWEN, 0);
-
- gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios));
+ gpiod_set_value(lda->power, 0);
return 0;
}
--
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