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authorSergey Shtylyov <s.shtylyov@omp.ru>2022-02-10 20:22:12 +0100
committerDamien Le Moal <damien.lemoal@opensource.wdc.com>2022-02-19 03:18:49 +0100
commita58ff050b428e38461d201b24d388899111ffedf (patch)
tree0db2571e56dde97c5baf9b671fef28ed7194db2f /drivers/ata
parentata: pata_mpc52xx: use GFP_KERNEL (diff)
downloadlinux-a58ff050b428e38461d201b24d388899111ffedf.tar.xz
linux-a58ff050b428e38461d201b24d388899111ffedf.zip
ata: pata_hpt366: disable fast interrupts in prereset() method
The PIO/DMA mode setting function is hardly a good place for disabling the fast interrupts on a channel -- let's move that code to the driver's prereset() method instead. Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/pata_hpt366.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index 96caa79dc8d7..c99e8f0708b3 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -23,7 +23,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_hpt366"
-#define DRV_VERSION "0.6.12"
+#define DRV_VERSION "0.6.13"
struct hpt_clock {
u8 xfer_mode;
@@ -300,10 +300,15 @@ static int hpt366_prereset(struct ata_link *link, unsigned long deadline)
static const struct pci_bits hpt366_enable_bits = {
0x50, 1, 0x30, 0x30
};
+ u8 mcr2;
if (!pci_test_config_bits(pdev, &hpt366_enable_bits))
return -ENOENT;
+ pci_read_config_byte(pdev, 0x51, &mcr2);
+ if (mcr2 & 0x80)
+ pci_write_config_byte(pdev, 0x51, mcr2 & ~0x80);
+
return ata_sff_prereset(link, deadline);
}
@@ -334,17 +339,13 @@ static struct ata_port_operations hpt366_port_ops = {
static void hpt36x_init_chipset(struct pci_dev *dev)
{
- u8 drive_fast, mcr1;
+ u8 mcr1;
pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
- pci_read_config_byte(dev, 0x51, &drive_fast);
- if (drive_fast & 0x80)
- pci_write_config_byte(dev, 0x51, drive_fast & ~0x80);
-
/*
* Now we'll have to force both channels enabled if at least one
* of them has been enabled by BIOS...