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fsi: scom: Remove PIB reset during probe

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The PIB reset causes problems for the running P9 chip. The reset
shouldn't be performed by this driver.

Signed-off-by: Eddie James <eajames@linux.vnet.ibm.com>
Reviewed-by: Christopher Bostic <cbostic@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Eddie James 2018-05-08 17:43:32 -05:00 committed by Benjamin Herrenschmidt
parent 26d79b272d
commit 52b7116e88
1 changed files with 0 additions and 8 deletions
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8
drivers/fsi/fsi-scom.c
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@ -26,15 +26,11 @@
#define FSI_ENGID_SCOM 0x5 #define FSI_ENGID_SCOM 0x5
#define SCOM_FSI2PIB_DELAY 50
/* SCOM engine register set */ /* SCOM engine register set */
#define SCOM_DATA0_REG 0x00 #define SCOM_DATA0_REG 0x00
#define SCOM_DATA1_REG 0x04 #define SCOM_DATA1_REG 0x04
#define SCOM_CMD_REG 0x08 #define SCOM_CMD_REG 0x08
#define SCOM_RESET_REG 0x1C
#define SCOM_RESET_CMD 0x80000000
#define SCOM_WRITE_CMD 0x80000000 #define SCOM_WRITE_CMD 0x80000000
struct scom_device { struct scom_device {
@ -180,7 +176,6 @@ static const struct file_operations scom_fops = {
static int scom_probe(struct device *dev) static int scom_probe(struct device *dev)
{ {
uint32_t data;
struct fsi_device *fsi_dev = to_fsi_dev(dev); struct fsi_device *fsi_dev = to_fsi_dev(dev);
struct scom_device *scom; struct scom_device *scom;
@ -197,9 +192,6 @@ static int scom_probe(struct device *dev)
scom->mdev.parent = dev; scom->mdev.parent = dev;
list_add(&scom->link, &scom_devices); list_add(&scom->link, &scom_devices);
data = cpu_to_be32(SCOM_RESET_CMD);
fsi_device_write(fsi_dev, SCOM_RESET_REG, &data, sizeof(uint32_t));
return misc_register(&scom->mdev); return misc_register(&scom->mdev);
} }