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thunderbolt: Drop unnecessary read when writing LC command in Ice Lake 

The read is not needed as we overwrite the returned value in the next
line anyway so drop it.

Fixes: 3cdb9446a1 ("thunderbolt: Add support for Intel Ice Lake")
Reported-by: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg 2019-09-16 17:03:03 +03:00
parent 6f67097342
commit 747125db6d
1 changed files with 0 additions and 1 deletions
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1
drivers/thunderbolt/nhi_ops.c
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@ -80,7 +80,6 @@ static void icl_nhi_lc_mailbox_cmd(struct tb_nhi *nhi, enum icl_lc_mailbox_cmd c
{
u32 data;
pci_read_config_dword(nhi->pdev, VS_CAP_19, &data);
data = (cmd << VS_CAP_19_CMD_SHIFT) & VS_CAP_19_CMD_MASK;
pci_write_config_dword(nhi->pdev, VS_CAP_19, data | VS_CAP_19_VALID);
}