The patch titled
tpm: pay attention to IRQ info from PNP
has been removed from the -mm tree. Its filename was
tpm_tis-fix-interrupt-probing.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: tpm: pay attention to IRQ info from PNP
From: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
If we discover the TIS TPM device via PNP, use the PNP IRQ information rather
than probing for an IRQ. If PNP shows no IRQ, run the TPM in polling mode.
Tested-by: <valdis.kletnieks@xxxxxx>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
Cc: Kylene Hall <kjhall@xxxxxxxxxx>
Cc: <tpm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/tpm/tpm_tis.c | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)
diff -puN drivers/char/tpm/tpm_tis.c~tpm_tis-fix-interrupt-probing drivers/char/tpm/tpm_tis.c
--- a/drivers/char/tpm/tpm_tis.c~tpm_tis-fix-interrupt-probing
+++ a/drivers/char/tpm/tpm_tis.c
@@ -435,17 +435,12 @@ module_param(interrupts, bool, 0444);
MODULE_PARM_DESC(interrupts, "Enable interrupts");
static int tpm_tis_init(struct device *dev, resource_size_t start,
- resource_size_t len)
+ resource_size_t len, unsigned int irq)
{
u32 vendor, intfcaps, intmask;
int rc, i;
struct tpm_chip *chip;
- if (!start)
- start = TIS_MEM_BASE;
- if (!len)
- len = TIS_MEM_LEN;
-
if (!(chip = tpm_register_hardware(dev, &tpm_tis)))
return -ENODEV;
@@ -512,7 +507,9 @@ static int tpm_tis_init(struct device *d
iowrite32(intmask,
chip->vendor.iobase +
TPM_INT_ENABLE(chip->vendor.locality));
- if (interrupts) {
+ if (interrupts)
+ chip->vendor.irq = irq;
+ if (interrupts && !chip->vendor.irq) {
chip->vendor.irq =
ioread8(chip->vendor.iobase +
TPM_INT_VECTOR(chip->vendor.locality));
@@ -597,10 +594,17 @@ static int __devinit tpm_tis_pnp_init(st
const struct pnp_device_id *pnp_id)
{
resource_size_t start, len;
+ unsigned int irq = 0;
+
start = pnp_mem_start(pnp_dev, 0);
len = pnp_mem_len(pnp_dev, 0);
- return tpm_tis_init(&pnp_dev->dev, start, len);
+ if (pnp_irq_valid(pnp_dev, 0))
+ irq = pnp_irq(pnp_dev, 0);
+ else
+ interrupts = 0;
+
+ return tpm_tis_init(&pnp_dev->dev, start, len, irq);
}
static int tpm_tis_pnp_suspend(struct pnp_dev *dev, pm_message_t msg)
@@ -660,7 +664,7 @@ static int __init init_tis(void)
return rc;
if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0)))
return PTR_ERR(pdev);
- if((rc=tpm_tis_init(&pdev->dev, 0, 0)) != 0) {
+ if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) {
platform_device_unregister(pdev);
driver_unregister(&tis_drv);
}
_
Patches currently in -mm which might be from bjorn.helgaas@xxxxxx are
origin.patch
serial-keep-the-dtr-setting-for-serial-console.patch
-
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