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| author | Luca Weiss <luca.weiss@fairphone.com> | 2026-04-09 11:13:32 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-04-12 23:49:33 +0300 |
| commit | 1335b903cf2e8aeaca87fd665683384c731ec941 (patch) | |
| tree | 639130d9e24a671de36a46620f52ac6c05f46d64 | |
| parent | de08f9585692813bd41ee654fca0487664c4de30 (diff) | |
| download | linux-1335b903cf2e8aeaca87fd665683384c731ec941.tar.xz | |
net: ipa: Fix decoding EV_PER_EE for IPA v5.0+
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: f651334e1ef5 ("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>
| -rw-r--r-- | drivers/net/ipa/gsi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index 4c3227e77898..624649484d62 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -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) { |