6.6-stable review patch. If anyone has any objections, please let me know.
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From: Meghana Malladi m-malladi@ti.com
[ Upstream commit 54e1b4becf5e220be03db4e1be773c1310e8cbbd ]
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@ti.com Reviewed-by: Vadim Fedorenko vadim.fedorenko@linux.dev Link: https://patch.msgid.link/20250227092441.1848419-1-m-malladi@ti.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@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 b491d89de8fb2..3f9a030471fe2 100644 --- a/drivers/net/ethernet/ti/icssg/icss_iep.c +++ b/drivers/net/ethernet/ti/icssg/icss_iep.c @@ -544,26 +544,7 @@ 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 int icss_iep_pps_enable(struct icss_iep *iep, int on)