The patch titled
pata_via suspend/resume support
has been added to the -mm tree. Its filename is
pata_via-suspend-resume-support.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: pata_via suspend/resume support
From: Alan Cox <alan@xxxxxxxxxx>
The major VIA issues were handled by the quirks update for resume quirks. The
ATA driver also has to do some work however when resuming from RAM. Certain
chips need the FIFO reconfiguring, and the 66MHz clock setup updating.
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/ata/pata_via.c | 92 +++++++++++++++++++++++++++++++--------
1 files changed, 75 insertions(+), 17 deletions(-)
diff -puN drivers/ata/pata_via.c~pata_via-suspend-resume-support drivers/ata/pata_via.c
--- a/drivers/ata/pata_via.c~pata_via-suspend-resume-support
+++ a/drivers/ata/pata_via.c
@@ -60,7 +60,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_via"
-#define DRV_VERSION "0.1.14"
+#define DRV_VERSION "0.2.0"
/*
* The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx
@@ -296,6 +296,8 @@ static struct scsi_host_template via_sht
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
.bios_param = ata_std_bios_param,
+ .resume = ata_scsi_device_resume,
+ .suspend = ata_scsi_device_suspend,
};
static struct ata_port_operations via_port_ops = {
@@ -369,8 +371,42 @@ static struct ata_port_operations via_po
};
/**
+ * via_config_fifo - set up the FIFO
+ * @pdev: PCI device
+ * @flags: configuration flags
+ *
+ * Set the FIFO properties for this device if neccessary. Used both on
+ * set up and on and the resume path
+ */
+
+static void via_config_fifo(struct pci_dev *pdev, unsigned int flags)
+{
+ u8 enable;
+
+ /* 0x40 low bits indicate enabled channels */
+ pci_read_config_byte(pdev, 0x40 , &enable);
+ enable &= 3;
+
+ if (flags & VIA_SET_FIFO) {
+ u8 fifo_setting[4] = {0x00, 0x60, 0x00, 0x20};
+ u8 fifo;
+
+ pci_read_config_byte(pdev, 0x43, &fifo);
+
+ /* Clear PREQ# until DDACK# for errata */
+ if (flags & VIA_BAD_PREQ)
+ fifo &= 0x7F;
+ else
+ fifo &= 0x9f;
+ /* Turn on FIFO for enabled channels */
+ fifo |= fifo_setting[enable];
+ pci_write_config_byte(pdev, 0x43, fifo);
+ }
+}
+
+/**
* via_init_one - discovery callback
- * @pdev: PCI device ID
+ * @pdev: PCI device
* @id: PCI table info
*
* A VIA IDE interface has been discovered. Figure out what revision
@@ -470,21 +506,8 @@ static int via_init_one(struct pci_dev *
}
/* Initialise the FIFO for the enabled channels. */
- if (config->flags & VIA_SET_FIFO) {
- u8 fifo_setting[4] = {0x00, 0x60, 0x00, 0x20};
- u8 fifo;
+ via_config_fifo(pdev, config->flags);
- pci_read_config_byte(pdev, 0x43, &fifo);
-
- /* Clear PREQ# until DDACK# for errata */
- if (config->flags & VIA_BAD_PREQ)
- fifo &= 0x7F;
- else
- fifo &= 0x9f;
- /* Turn on FIFO for enabled channels */
- fifo |= fifo_setting[enable];
- pci_write_config_byte(pdev, 0x43, fifo);
- }
/* Clock set up */
switch(config->flags & VIA_UDMA) {
case VIA_UDMA_NONE:
@@ -528,6 +551,39 @@ static int via_init_one(struct pci_dev *
return ata_pci_init_one(pdev, port_info, 2);
}
+/**
+ * via_reinit_one - reinit after resume
+ * @pdev; PCI device
+ *
+ * Called when the VIA PATA device is resumed. We must then
+ * reconfigure the fifo and other setup we may have altered. In
+ * addition the kernel needs to have the resume methods on PCI
+ * quirk supported.
+ */
+
+static int via_reinit_one(struct pci_dev *pdev)
+{
+ u32 timing;
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ const struct via_isa_bridge *config = host->private_data;
+
+ via_config_fifo(pdev, config->flags);
+
+ if ((config->flags & VIA_UDMA) == VIA_UDMA_66) {
+ /* The 66 MHz devices require we enable the clock */
+ pci_read_config_dword(pdev, 0x50, &timing);
+ timing |= 0x80008;
+ pci_write_config_dword(pdev, 0x50, timing);
+ }
+ if (config->flags & VIA_BAD_CLK66) {
+ /* Disable the 66MHz clock on problem devices */
+ pci_read_config_dword(pdev, 0x50, &timing);
+ timing &= ~0x80008;
+ pci_write_config_dword(pdev, 0x50, timing);
+ }
+ return ata_pci_device_resume(pdev);
+}
+
static const struct pci_device_id via[] = {
{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C576_1), },
{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C586_1), },
@@ -541,7 +597,9 @@ static struct pci_driver via_pci_driver
.name = DRV_NAME,
.id_table = via,
.probe = via_init_one,
- .remove = ata_pci_remove_one
+ .remove = ata_pci_remove_one,
+ .suspend = ata_pci_device_suspend,
+ .resume = via_reinit_one,
};
static int __init via_init(void)
_
Patches currently in -mm which might be from alan@xxxxxxxxxx are
git-libata-all.patch
pata_hpt366-more-enable-bits.patch
pci-move-pci_vdevice-from-libata-to-core.patch
pata-libata-suspend-resume-simple-cases.patch
pata-libata-suspend-resume-simple-cases-fix.patch
pata_cmd64x-suspend-resume.patch
pata_cs5520-resume-support.patch
pata_jmicron-fix-jmb368-support-add-suspend-resume.patch
pata_cs5530-suspend-resume-support.patch
pata_cs5530-suspend-resume-support-tweak.patch
pata_rz1000-force-readahead-off-on-resume.patch
pata_ali-suspend-resume-support.patch
pata_sil680-suspend-resume.patch
pata_sil680-suspend-resume-tidy.patch
pata_it821x-suspend-resume-support.patch
pata_serverworks-suspend-resume.patch
pata_via-suspend-resume-support.patch
pata_amd-suspend-resume.patch
hpt36x-suspend-resume-support.patch
pata_hpt3x3-suspend-resume-support.patch
pata-more-drivers-that-need-only-standard-suspend-and.patch
pata_marvell-merge-mandriva-patches.patch
git-mtd.patch
git-netdev-all.patch
resend-iphase-64bit-cleanup.patch
pci-introduce-pci_find_present.patch
pci-fix-multiple-problems-with-via-hardware.patch
pci-fix-multiple-problems-with-via-hardware-warning-fix.patch
pci_module_init-convertion-in-tmscsimc.patch
x86_64-smpboot-remove-unused-variable.patch
alpha-switch-to-pci_get-api.patch
ioremap-balanced-with-iounmap-for-drivers-char-rio-rio_linuxc.patch
ioremap-balanced-with-iounmap-for-drivers-char-moxac.patch
ioremap-balanced-with-iounmap-for-drivers-char-istallionc.patch
ide-complete-switch-to-pci_get.patch
remove-drivers-pci-searchcpci_find_device_reverse.patch
via82cxxx-handle-error-condition-properly.patch
hz-300hz-support.patch
tty-signal-tty-locking.patch
tty-signal-tty-locking-3270-fix.patch
pci-mxser-pci-refcounts.patch
tty-preparatory-structures-for-termios-revamp.patch
tty-preparatory-structures-for-termios-revamp-strip-fix.patch
tty-switch-to-ktermios-and-new-framework.patch
tty-switch-to-ktermios-and-new-framework-warning-fix.patch
tty-switch-to-ktermios-and-new-framework-irda-fix.patch
tty-switch-to-ktermios.patch
tty-switch-to-ktermios-nozomi-fix.patch
tty-switch-to-ktermios-sclp-fix.patch
tty-switch-to-ktermios-powerpc-fix.patch
tty-switch-to-ktermios-uml-fix-2.patch
tty_ioctl-use-termios-for-the-old-structure-and-termios2.patch
tty_ioctl-use-termios-for-the-old-structure-and-termios2-fix.patch
tty_ioctl-use-termios-for-the-old-structure-and-termios2-update.patch
termios-enable-new-style-termios-ioctls-on-x86-64.patch
char-isicom-expand-function.patch
char-isicom-rename-init-function.patch
char-isicom-remove-isa-code.patch
char-isicom-remove-unneeded-memset.patch
char-isicom-move-to-tty_register_device.patch
char-isicom-use-pci_request_region.patch
char-isicom-check-kmalloc-retval.patch
drivers-isdn-trivial-vsnprintf-conversion.patch
ide-more-conversion-to-pci_get-apis.patch
igafb-switch-to-pci_get-api.patch
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