tpm_crb: Drop le32_to_cpu(ioread32(..))

ioread32 and readl are defined to read from PCI style memory, ie little
endian and return the result in host order. On platforms where a
swap is required ioread32/readl do the swap internally (eg see ppc).

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Acked-by: Peter Huewe <peterhuewe@gmx.de>

diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index 8dd7069..0237006 100644 (file)
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -89,7 +89,7 @@ static u8 crb_status(struct tpm_chip *chip)
        struct crb_priv *priv = chip->vendor.priv;
        u8 sts = 0;
 
-       if ((le32_to_cpu(ioread32(&priv->cca->start)) & CRB_START_INVOKE) !=
+       if ((ioread32(&priv->cca->start) & CRB_START_INVOKE) !=
            CRB_START_INVOKE)
                sts |= CRB_STS_COMPLETE;
 
@@ -105,7 +105,7 @@ static int crb_recv(struct tpm_chip *chip, u8 *buf, size_t count)
        if (count < 6)
                return -EIO;
 
-       if (le32_to_cpu(ioread32(&priv->cca->sts)) & CRB_CA_STS_ERROR)
+       if (ioread32(&priv->cca->sts) & CRB_CA_STS_ERROR)
                return -EIO;
 
        memcpy_fromio(buf, priv->rsp, 6);
@@ -141,11 +141,11 @@ static int crb_send(struct tpm_chip *chip, u8 *buf, size_t len)
        struct crb_priv *priv = chip->vendor.priv;
        int rc = 0;
 
-       if (len > le32_to_cpu(ioread32(&priv->cca->cmd_size))) {
+       if (len > ioread32(&priv->cca->cmd_size)) {
                dev_err(&chip->dev,
                        "invalid command count value %x %zx\n",
                        (unsigned int) len,
-                       (size_t) le32_to_cpu(ioread32(&priv->cca->cmd_size)));
+                       (size_t) ioread32(&priv->cca->cmd_size));
                return -E2BIG;
        }
 
@@ -181,7 +181,7 @@ static void crb_cancel(struct tpm_chip *chip)
 static bool crb_req_canceled(struct tpm_chip *chip, u8 status)
 {
        struct crb_priv *priv = chip->vendor.priv;
-       u32 cancel = le32_to_cpu(ioread32(&priv->cca->cancel));
+       u32 cancel = ioread32(&priv->cca->cancel);
 
        return (cancel & CRB_CANCEL_INVOKE) == CRB_CANCEL_INVOKE;
 }
@@ -251,10 +251,10 @@ static int crb_acpi_add(struct acpi_device *device)
                return -ENOMEM;
        }
 
-       pa = ((u64) le32_to_cpu(ioread32(&priv->cca->cmd_pa_high)) << 32) |
-               (u64) le32_to_cpu(ioread32(&priv->cca->cmd_pa_low));
-       priv->cmd = devm_ioremap_nocache(dev, pa,
-                                        ioread32(&priv->cca->cmd_size));
+       pa = ((u64)ioread32(&priv->cca->cmd_pa_high) << 32) |
+            (u64)ioread32(&priv->cca->cmd_pa_low);
+       priv->cmd =
+           devm_ioremap_nocache(dev, pa, ioread32(&priv->cca->cmd_size));
        if (!priv->cmd) {
                dev_err(dev, "ioremap of the command buffer failed\n");
                return -ENOMEM;
@@ -262,8 +262,8 @@ static int crb_acpi_add(struct acpi_device *device)
 
        memcpy_fromio(&pa, &priv->cca->rsp_pa, 8);
        pa = le64_to_cpu(pa);
-       priv->rsp = devm_ioremap_nocache(dev, pa,
-                                        ioread32(&priv->cca->rsp_size));
+       priv->rsp =
+           devm_ioremap_nocache(dev, pa, ioread32(&priv->cca->rsp_size));
        if (!priv->rsp) {
                dev_err(dev, "ioremap of the response buffer failed\n");
                return -ENOMEM;