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path: root/drivers/ata/sata_highbank.c
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Diffstat (limited to 'drivers/ata/sata_highbank.c')
-rw-r--r--drivers/ata/sata_highbank.c87
1 files changed, 35 insertions, 52 deletions
diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
index aafb8cc03523..3421039f4bae 100644
--- a/drivers/ata/sata_highbank.c
+++ b/drivers/ata/sata_highbank.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Calxeda Highbank AHCI SATA platform driver
* Copyright 2012 Calxeda, Inc.
*
* based on the AHCI SATA platform driver by Jeff Garzik and Anton Vorontsov
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kernel.h>
#include <linux/gfp.h>
@@ -24,15 +13,14 @@
#include <linux/io.h>
#include <linux/spinlock.h>
#include <linux/device.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/libata.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/export.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
#include "ahci.h"
@@ -85,7 +73,7 @@ struct ecx_plat_data {
/* number of extra clocks that the SGPIO PIC controller expects */
u32 pre_clocks;
u32 post_clocks;
- unsigned sgpio_gpio[SGPIO_PINS];
+ struct gpio_desc *sgpio_gpiod[SGPIO_PINS];
u32 sgpio_pattern;
u32 port_to_sgpio[SGPIO_PORTS];
};
@@ -131,9 +119,9 @@ static void ecx_parse_sgpio(struct ecx_plat_data *pdata, u32 port, u32 state)
*/
static void ecx_led_cycle_clock(struct ecx_plat_data *pdata)
{
- gpio_set_value(pdata->sgpio_gpio[SCLOCK], 1);
+ gpiod_set_value(pdata->sgpio_gpiod[SCLOCK], 1);
udelay(50);
- gpio_set_value(pdata->sgpio_gpio[SCLOCK], 0);
+ gpiod_set_value(pdata->sgpio_gpiod[SCLOCK], 0);
udelay(50);
}
@@ -164,15 +152,15 @@ static ssize_t ecx_transmit_led_message(struct ata_port *ap, u32 state,
for (i = 0; i < pdata->pre_clocks; i++)
ecx_led_cycle_clock(pdata);
- gpio_set_value(pdata->sgpio_gpio[SLOAD], 1);
+ gpiod_set_value(pdata->sgpio_gpiod[SLOAD], 1);
ecx_led_cycle_clock(pdata);
- gpio_set_value(pdata->sgpio_gpio[SLOAD], 0);
+ gpiod_set_value(pdata->sgpio_gpiod[SLOAD], 0);
/*
* bit-bang out the SGPIO pattern, by consuming a bit and then
* clocking it out.
*/
for (i = 0; i < (SGPIO_SIGNALS * pdata->n_ports); i++) {
- gpio_set_value(pdata->sgpio_gpio[SDATA], sgpio_out & 1);
+ gpiod_set_value(pdata->sgpio_gpiod[SDATA], sgpio_out & 1);
sgpio_out >>= 1;
ecx_led_cycle_clock(pdata);
}
@@ -193,21 +181,19 @@ static void highbank_set_em_messages(struct device *dev,
struct device_node *np = dev->of_node;
struct ecx_plat_data *pdata = hpriv->plat_data;
int i;
- int err;
for (i = 0; i < SGPIO_PINS; i++) {
- err = of_get_named_gpio(np, "calxeda,sgpio-gpio", i);
- if (err < 0)
- return;
-
- pdata->sgpio_gpio[i] = err;
- err = gpio_request(pdata->sgpio_gpio[i], "CX SGPIO");
- if (err) {
- pr_err("sata_highbank gpio_request %d failed: %d\n",
- i, err);
- return;
+ struct gpio_desc *gpiod;
+
+ gpiod = devm_gpiod_get_index(dev, "calxeda,sgpio", i,
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(gpiod)) {
+ dev_err(dev, "failed to get GPIO %d\n", i);
+ continue;
}
- gpio_direction_output(pdata->sgpio_gpio[i], 1);
+ gpiod_set_consumer_name(gpiod, "CX SGPIO");
+
+ pdata->sgpio_gpiod[i] = gpiod;
}
of_property_read_u32_array(np, "calxeda,led-order",
pdata->port_to_sgpio,
@@ -362,6 +348,7 @@ static int highbank_initialize_phys(struct device *dev, void __iomem *addr)
phy_nodes[phy] = phy_data.np;
cphy_base[phy] = of_iomap(phy_nodes[phy], 0);
if (cphy_base[phy] == NULL) {
+ of_node_put(phy_data.np);
return 0;
}
phy_count += 1;
@@ -399,7 +386,7 @@ static int highbank_initialize_phys(struct device *dev, void __iomem *addr)
static int ahci_highbank_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
- static const unsigned long timing[] = { 5, 100, 500};
+ static const unsigned int timing[] = { 5, 100, 500};
struct ata_port *ap = link->ap;
struct ahci_port_priv *pp = ap->private_data;
struct ahci_host_priv *hpriv = ap->host->private_data;
@@ -410,11 +397,11 @@ static int ahci_highbank_hardreset(struct ata_link *link, unsigned int *class,
int rc;
int retry = 100;
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(link->device, &tf);
- tf.command = ATA_BUSY;
+ tf.status = ATA_BUSY;
ata_tf_to_fis(&tf, 0, 0, d2h_fis);
do {
@@ -441,7 +428,7 @@ static int ahci_highbank_hardreset(struct ata_link *link, unsigned int *class,
static struct ata_port_operations ahci_highbank_ops = {
.inherits = &ahci_ops,
- .hardreset = ahci_highbank_hardreset,
+ .reset.hardreset = ahci_highbank_hardreset,
.transmit_led_message = ecx_transmit_led_message,
};
@@ -452,13 +439,13 @@ static const struct ata_port_info ahci_highbank_port_info = {
.port_ops = &ahci_highbank_ops,
};
-static struct scsi_host_template ahci_highbank_platform_sht = {
+static const struct scsi_host_template ahci_highbank_platform_sht = {
AHCI_SHT("sata_highbank"),
};
static const struct of_device_id ahci_of_match[] = {
{ .compatible = "calxeda,hb-ahci" },
- {},
+ { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, ahci_of_match);
@@ -483,10 +470,10 @@ static int ahci_highbank_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
- dev_err(dev, "no irq\n");
+ if (irq < 0)
+ return irq;
+ if (!irq)
return -EINVAL;
- }
hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
if (!hpriv) {
@@ -585,7 +572,6 @@ static int ahci_highbank_suspend(struct device *dev)
struct ahci_host_priv *hpriv = host->private_data;
void __iomem *mmio = hpriv->mmio;
u32 ctl;
- int rc;
if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
dev_err(dev, "firmware update required for suspend/resume\n");
@@ -602,10 +588,7 @@ static int ahci_highbank_suspend(struct device *dev)
writel(ctl, mmio + HOST_CTL);
readl(mmio + HOST_CTL); /* flush */
- rc = ata_host_suspend(host, PMSG_SUSPEND);
- if (rc)
- return rc;
-
+ ata_host_suspend(host, PMSG_SUSPEND);
return 0;
}
@@ -633,11 +616,11 @@ static SIMPLE_DEV_PM_OPS(ahci_highbank_pm_ops,
static struct platform_driver ahci_highbank_driver = {
.remove = ata_platform_remove_one,
- .driver = {
- .name = "highbank-ahci",
- .of_match_table = ahci_of_match,
- .pm = &ahci_highbank_pm_ops,
- },
+ .driver = {
+ .name = "highbank-ahci",
+ .of_match_table = ahci_of_match,
+ .pm = &ahci_highbank_pm_ops,
+ },
.probe = ahci_highbank_probe,
};
generated by cgit (git 2.34.1) at 2025-12-27 14:20:15 +0000