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path: root/drivers/char/tpm/tpm_tis_spi_main.c
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Diffstat (limited to 'drivers/char/tpm/tpm_tis_spi_main.c')
-rw-r--r--drivers/char/tpm/tpm_tis_spi_main.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/char/tpm/tpm_tis_spi_main.c b/drivers/char/tpm/tpm_tis_spi_main.c
index 3f9eaf27b41b..61b42c83ced8 100644
--- a/drivers/char/tpm/tpm_tis_spi_main.c
+++ b/drivers/char/tpm/tpm_tis_spi_main.c
@@ -37,6 +37,7 @@
#include "tpm_tis_spi.h"
#define MAX_SPI_FRAMESIZE 64
+#define SPI_HDRSIZE 4
/*
* TCG SPI flow control is documented in section 6.4 of the spec[1]. In short,
@@ -247,7 +248,7 @@ static int tpm_tis_spi_write_bytes(struct tpm_tis_data *data, u32 addr,
int tpm_tis_spi_init(struct spi_device *spi, struct tpm_tis_spi_phy *phy,
int irq, const struct tpm_tis_phy_ops *phy_ops)
{
- phy->iobuf = devm_kmalloc(&spi->dev, MAX_SPI_FRAMESIZE, GFP_KERNEL);
+ phy->iobuf = devm_kmalloc(&spi->dev, SPI_HDRSIZE + MAX_SPI_FRAMESIZE, GFP_KERNEL);
if (!phy->iobuf)
return -ENOMEM;
@@ -317,6 +318,7 @@ static void tpm_tis_spi_remove(struct spi_device *dev)
}
static const struct spi_device_id tpm_tis_spi_id[] = {
+ { "attpm20p", (unsigned long)tpm_tis_spi_probe },
{ "st33htpm-spi", (unsigned long)tpm_tis_spi_probe },
{ "slb9670", (unsigned long)tpm_tis_spi_probe },
{ "tpm_tis_spi", (unsigned long)tpm_tis_spi_probe },