From 99f039e97bf8aa045d719b8e0a39ecdf396e362a Mon Sep 17 00:00:00 2001 From: Eddie James Date: Mon, 12 Feb 2018 15:45:43 +1030 Subject: fsi: Fix one and two byte bus reads/writes Address checker fixed to allow one and two byte reads/writes. Address alignments for each size verified. Signed-off-by: Edward James Signed-off-by: Christopher Bostic Acked-by: Jeremy Kerr Signed-off-by: Joel Stanley Signed-off-by: Greg Kroah-Hartman --- drivers/fsi/fsi-core.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers/fsi') diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 6e5aa9b26665..e5dfece248a5 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -656,10 +656,13 @@ static int fsi_slave_init(struct fsi_master *master, int link, uint8_t id) /* FSI master support */ static int fsi_check_access(uint32_t addr, size_t size) { - if (size != 1 && size != 2 && size != 4) - return -EINVAL; - - if ((addr & 0x3) != (size & 0x3)) + if (size == 4) { + if (addr & 0x3) + return -EINVAL; + } else if (size == 2) { + if (addr & 0x1) + return -EINVAL; + } else if (size != 1) return -EINVAL; return 0; -- cgit v1.2.3-59-g8ed1b