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Commit 50528fab authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 

Pull libata update from Jeff Garzik:

 - More ACPI fixes, cleanups

 - Minor cleanups for sata_highbank, pata_at32, pata_octeon_cf,
   sata_rcar

 - pata_legacy: small bug found in opti chipset code (untested fix, due
   to ancient h/w)

 - sata_fsl: RX water mark config knob, some h/w needs it

 - pata_imx: cleanups, DeviceTree support

 - SCSI<->ATA translator: properly export translator version, not device
   firmware version

* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  sata_highbank: Rename proc_name to the module name
  ACPI/libata: Restore libata.noacpi support
  [libata] acpi: make ata_ap_acpi_handle not block
  [libata] SCSI: really use SATL version in VPD
  pata_imx: add devicetree support
  pata_imx: use void __iomem * for regs
  pata_imx: cleanup error path
  pata_imx: Use devm_clk_get
  sata_rcar: Convert to devm_ioremap_resource()
  fsl/sata: create a sysfs entry for rx water mark
  libata-acpi: remove redundent code for power resource handling
  sata_highbank: make ahci_highbank_pm_ops static
  pata_octeon_cf: Use resource_size function
  pata_legacy: bogus clock in opti82c46x_set_piomode()
  pata_at32: use module_platform_driver_probe()
parents 3ed1c478 2cc1144a

Documentation/devicetree/bindings/ata/imx-pata.txt

0 → 100644
+17 −0
Original line number Diff line number Diff line 
* Freescale i.MX PATA Controller



Required properties:

- compatible: "fsl,imx27-pata"

- reg: Address range of the PATA Controller

- interrupts: The interrupt of the PATA Controller

- clocks: the clocks for the PATA Controller



Example:



	pata: pata@83fe0000 {

		compatible = "fsl,imx51-pata", "fsl,imx27-pata";

		reg = <0x83fe0000 0x4000>;

		interrupts = <70>;

		clocks = <&clks 161>;

		status = "disabled";

	};

drivers/ata/libata-acpi.c

+29 −53
Original line number Diff line number Diff line
@@ -17,7 +17,6 @@ 
#include <linux/pci.h>

#include <linux/slab.h>

#include <linux/pm_runtime.h>

#include <linux/pm_qos.h>

#include <scsi/scsi_device.h>

#include "libata.h"
@@ -61,7 +60,8 @@ acpi_handle ata_ap_acpi_handle(struct ata_port *ap) 
	if (ap->flags & ATA_FLAG_ACPI_SATA)

		return NULL;



	return acpi_get_child(DEVICE_ACPI_HANDLE(ap->host->dev), ap->port_no);

	return ap->scsi_host ?

		DEVICE_ACPI_HANDLE(&ap->scsi_host->shost_gendev) : NULL;

}

EXPORT_SYMBOL(ata_ap_acpi_handle);
@@ -77,7 +77,7 @@ acpi_handle ata_dev_acpi_handle(struct ata_device *dev) 
	acpi_integer adr;

	struct ata_port *ap = dev->link->ap;



	if (dev->flags & ATA_DFLAG_ACPI_DISABLED)

	if (libata_noacpi || dev->flags & ATA_DFLAG_ACPI_DISABLED)

		return NULL;



	if (ap->flags & ATA_FLAG_ACPI_SATA) {
@@ -240,28 +240,15 @@ void ata_acpi_dissociate(struct ata_host *host) 
	}

}



/**

 * ata_acpi_gtm - execute _GTM

 * @ap: target ATA port

 * @gtm: out parameter for _GTM result

 *

 * Evaluate _GTM and store the result in @gtm.

 *

 * LOCKING:

 * EH context.

 *

 * RETURNS:

 * 0 on success, -ENOENT if _GTM doesn't exist, -errno on failure.

 */

int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *gtm)

static int __ata_acpi_gtm(struct ata_port *ap, acpi_handle handle,

			  struct ata_acpi_gtm *gtm)

{

	struct acpi_buffer output = { .length = ACPI_ALLOCATE_BUFFER };

	union acpi_object *out_obj;

	acpi_status status;

	int rc = 0;



	status = acpi_evaluate_object(ata_ap_acpi_handle(ap), "_GTM", NULL,

				      &output);

	status = acpi_evaluate_object(handle, "_GTM", NULL, &output);



	rc = -ENOENT;

	if (status == AE_NOT_FOUND)
@@ -295,6 +282,27 @@ int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *gtm) 
	return rc;

}



/**

 * ata_acpi_gtm - execute _GTM

 * @ap: target ATA port

 * @gtm: out parameter for _GTM result

 *

 * Evaluate _GTM and store the result in @gtm.

 *

 * LOCKING:

 * EH context.

 *

 * RETURNS:

 * 0 on success, -ENOENT if _GTM doesn't exist, -errno on failure.

 */

int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *gtm)

{

	if (ata_ap_acpi_handle(ap))

		return __ata_acpi_gtm(ap, ata_ap_acpi_handle(ap), gtm);

	else

		return -EINVAL;

}



EXPORT_SYMBOL_GPL(ata_acpi_gtm);



/**
@@ -1020,38 +1028,6 @@ void ata_acpi_on_disable(struct ata_device *dev) 
	ata_acpi_clear_gtf(dev);

}



static void ata_acpi_register_power_resource(struct ata_device *dev)

{

	struct scsi_device *sdev = dev->sdev;

	acpi_handle handle;



	handle = ata_dev_acpi_handle(dev);

	if (handle)

		acpi_dev_pm_add_dependent(handle, &sdev->sdev_gendev);

}



static void ata_acpi_unregister_power_resource(struct ata_device *dev)

{

	struct scsi_device *sdev = dev->sdev;

	acpi_handle handle;



	handle = ata_dev_acpi_handle(dev);

	if (handle)

		acpi_dev_pm_remove_dependent(handle, &sdev->sdev_gendev);

}



void ata_acpi_bind(struct ata_device *dev)

{

	ata_acpi_register_power_resource(dev);

	if (zpodd_dev_enabled(dev))

		dev_pm_qos_expose_flags(&dev->sdev->sdev_gendev, 0);

}



void ata_acpi_unbind(struct ata_device *dev)

{

	ata_acpi_unregister_power_resource(dev);

}



static int compat_pci_ata(struct ata_port *ap)

{

	struct device *dev = ap->tdev.parent;
@@ -1071,7 +1047,7 @@ static int compat_pci_ata(struct ata_port *ap) 


static int ata_acpi_bind_host(struct ata_port *ap, acpi_handle *handle)

{

	if (ap->flags & ATA_FLAG_ACPI_SATA)

	if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA)

		return -ENODEV;



	*handle = acpi_get_child(DEVICE_ACPI_HANDLE(ap->tdev.parent),
@@ -1080,7 +1056,7 @@ static int ata_acpi_bind_host(struct ata_port *ap, acpi_handle *handle) 
	if (!*handle)

		return -ENODEV;



	if (ata_acpi_gtm(ap, &ap->__acpi_init_gtm) == 0)

	if (__ata_acpi_gtm(ap, *handle, &ap->__acpi_init_gtm) == 0)

		ap->pflags |= ATA_PFLAG_INIT_GTM_VALID;



	return 0;

drivers/ata/libata-scsi.c

+4 −3
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ 
#include <linux/hdreg.h>

#include <linux/uaccess.h>

#include <linux/suspend.h>

#include <linux/pm_qos.h>

#include <asm/unaligned.h>



#include "libata.h"
@@ -2126,7 +2127,6 @@ static unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf) 
	memcpy(&rbuf[8], "linux   ", 8);

	memcpy(&rbuf[16], "libata          ", 16);

	memcpy(&rbuf[32], DRV_VERSION, 4);

	ata_id_string(args->id, &rbuf[32], ATA_ID_FW_REV, 4);



	/* we don't store the ATA device signature, so we fake it */
@@ -3668,7 +3668,9 @@ void ata_scsi_scan_host(struct ata_port *ap, int sync) 
			if (!IS_ERR(sdev)) {

				dev->sdev = sdev;

				scsi_device_put(sdev);

				ata_acpi_bind(dev);

				if (zpodd_dev_enabled(dev))

					dev_pm_qos_expose_flags(

							&sdev->sdev_gendev, 0);

			} else {

				dev->sdev = NULL;

			}
@@ -3767,7 +3769,6 @@ static void ata_scsi_remove_dev(struct ata_device *dev) 


	if (zpodd_dev_enabled(dev))

		zpodd_exit(dev);

	ata_acpi_unbind(dev);



	/* clearing dev->sdev is protected by host lock */

	sdev = dev->sdev;

drivers/ata/pata_at32.c

+1 −12
Original line number Diff line number Diff line
@@ -393,18 +393,7 @@ static struct platform_driver pata_at32_driver = { 
	},

};



static int __init pata_at32_init(void)

{

	return platform_driver_probe(&pata_at32_driver, pata_at32_probe);

}



static void __exit pata_at32_exit(void)

{

	platform_driver_unregister(&pata_at32_driver);

}



module_init(pata_at32_init);

module_exit(pata_at32_exit);

module_platform_driver_probe(pata_at32_driver, pata_at32_probe);



MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("AVR32 SMC/CFC PATA Driver");

drivers/ata/pata_imx.c

+26 −10
Original line number Diff line number Diff line
@@ -37,7 +37,7 @@ 
struct pata_imx_priv {

	struct clk *clk;

	/* timings/interrupt/control regs */

	u8 *host_regs;

	void __iomem *host_regs;

	u32 ata_ctl;

};
@@ -98,6 +98,7 @@ static int pata_imx_probe(struct platform_device *pdev) 
	struct pata_imx_priv *priv;

	int irq = 0;

	struct resource *io_res;

	int ret;



	io_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (io_res == NULL)
@@ -112,7 +113,7 @@ static int pata_imx_probe(struct platform_device *pdev) 
	if (!priv)

		return -ENOMEM;



	priv->clk = clk_get(&pdev->dev, NULL);

	priv->clk = devm_clk_get(&pdev->dev, NULL);

	if (IS_ERR(priv->clk)) {

		dev_err(&pdev->dev, "Failed to get clock\n");

		return PTR_ERR(priv->clk);
@@ -121,8 +122,10 @@ static int pata_imx_probe(struct platform_device *pdev) 
	clk_prepare_enable(priv->clk);



	host = ata_host_alloc(&pdev->dev, 1);

	if (!host)

		goto free_priv;

	if (!host) {

		ret = -ENOMEM;

		goto err;

	}



	host->private_data = priv;

	ap = host->ports[0];
@@ -135,7 +138,8 @@ static int pata_imx_probe(struct platform_device *pdev) 
		resource_size(io_res));

	if (!priv->host_regs) {

		dev_err(&pdev->dev, "failed to map IO/CTL base\n");

		goto free_priv;

		ret = -EBUSY;

		goto err;

	}



	ap->ioaddr.cmd_addr = priv->host_regs + PATA_IMX_DRIVE_DATA;
@@ -158,13 +162,17 @@ static int pata_imx_probe(struct platform_device *pdev) 
			priv->host_regs + PATA_IMX_ATA_INT_EN);



	/* activate */

	return ata_host_activate(host, irq, ata_sff_interrupt, 0,

	ret = ata_host_activate(host, irq, ata_sff_interrupt, 0,

				&pata_imx_sht);



free_priv:

	if (ret)

		goto err;



	return 0;

err:

	clk_disable_unprepare(priv->clk);

	clk_put(priv->clk);

	return -ENOMEM;



	return ret;

}



static int pata_imx_remove(struct platform_device *pdev)
@@ -177,7 +185,6 @@ static int pata_imx_remove(struct platform_device *pdev) 
	__raw_writel(0, priv->host_regs + PATA_IMX_ATA_INT_EN);



	clk_disable_unprepare(priv->clk);

	clk_put(priv->clk);



	return 0;

}
@@ -223,11 +230,20 @@ static const struct dev_pm_ops pata_imx_pm_ops = { 
};

#endif



static const struct of_device_id imx_pata_dt_ids[] = {

	{

		.compatible = "fsl,imx27-pata",

	}, {

		/* sentinel */

	}

};



static struct platform_driver pata_imx_driver = {

	.probe		= pata_imx_probe,

	.remove		= pata_imx_remove,

	.driver = {

		.name		= DRV_NAME,

		.of_match_table	= imx_pata_dt_ids,

		.owner		= THIS_MODULE,

#ifdef CONFIG_PM

		.pm		= &pata_imx_pm_ops,