github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-12 16:18:45 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

net: ipa: Fix decoding EV_PER_EE for IPA v5.0+

Browse Source 
Initially 'reg' and 'val' are assigned from HW_PARAM_2.

But since IPA v5.0+ takes EV_PER_EE from HW_PARAM_4 (instead of
NUM_EV_PER_EE from HW_PARAM_2), we not only need to re-assign 'reg' but
also read the register value of that register into 'val' so that
reg_decode() works on the correct value.

Fixes: f651334e1e ("net: ipa: add HW_PARAM_4 GSI register")
Link: https://sashiko.dev/#/patchset/20260403-milos-ipa-v1-0-01e9e4e03d3e%40fairphone.com?part=2
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260409-ipa-fixes-v1-2-a817c30678ac@fairphone.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Luca Weiss 2026-04-09 10:13:32 +02:00 committed by Jakub Kicinski
parent de08f95856
commit 1335b903cf
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ipa/gsi.c
View File

@ -2044,6 +2044,7 @@ static int gsi_ring_setup(struct gsi *gsi)
count = reg_decode(reg, NUM_EV_PER_EE, val);
} else {
reg = gsi_reg(gsi, HW_PARAM_4);
val = ioread32(gsi->virt + reg_offset(reg));
count = reg_decode(reg, EV_PER_EE, val);
}
if (!count) {