[PATCH net] net: ti: icss-iep: Reject perout generation request
Meghana Malladi
m-malladi at ti.com
Thu Feb 27 01:24:41 PST 2025
IEP driver supports both perout and pps signal generation
but perout feature is faulty with half-cooked support
due to some missing configuration. Remove perout
support from the driver and reject perout requests with
"not supported" error code.
Fixes: c1e0230eeaab2 ("net: ti: icss-iep: Add IEP driver")
Signed-off-by: Meghana Malladi <m-malladi at ti.com>
---
This patch is a bug fix to disable/remove a faulty feature, which will be
enabled separately as a feature addition to net-next, as suggested by
Jakub Kicinski and Jacob Keller:
https://lore.kernel.org/all/20250220172410.025b96d6@kernel.org/
drivers/net/ethernet/ti/icssg/icss_iep.c | 21 +--------------------
1 file changed, 1 insertion(+), 20 deletions(-)
diff --git a/drivers/net/ethernet/ti/icssg/icss_iep.c b/drivers/net/ethernet/ti/icssg/icss_iep.c
index 768578c0d958..d59c1744840a 100644
--- a/drivers/net/ethernet/ti/icssg/icss_iep.c
+++ b/drivers/net/ethernet/ti/icssg/icss_iep.c
@@ -474,26 +474,7 @@ static int icss_iep_perout_enable_hw(struct icss_iep *iep,
static int icss_iep_perout_enable(struct icss_iep *iep,
struct ptp_perout_request *req, int on)
{
- int ret = 0;
-
- mutex_lock(&iep->ptp_clk_mutex);
-
- if (iep->pps_enabled) {
- ret = -EBUSY;
- goto exit;
- }
-
- if (iep->perout_enabled == !!on)
- goto exit;
-
- ret = icss_iep_perout_enable_hw(iep, req, on);
- if (!ret)
- iep->perout_enabled = !!on;
-
-exit:
- mutex_unlock(&iep->ptp_clk_mutex);
-
- return ret;
+ return -EOPNOTSUPP;
}
static void icss_iep_cap_cmp_work(struct work_struct *work)
base-commit: 29b036be1b0bfcfc958380d5931325997fddf08a
--
2.43.0
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