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Message-Id: <1651244864-14297-2-git-send-email-min.li.xe@renesas.com> Date: Fri, 29 Apr 2022 11:07:44 -0400 From: Min Li <min.li.xe@...esas.com> To: richardcochran@...il.com, lee.jones@...aro.org Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, Min Li <min.li.xe@...esas.com> Subject: [PATCH net v2 2/2] ptp: ptp_clockmatrix: return -EBUSY if phase pull-in is in progress Also removes PEROUT_ENABLE_OUTPUT_MASK Signed-off-by: Min Li <min.li.xe@...esas.com> --- drivers/ptp/ptp_clockmatrix.c | 32 ++------------------------------ drivers/ptp/ptp_clockmatrix.h | 2 -- 2 files changed, 2 insertions(+), 32 deletions(-) diff --git a/drivers/ptp/ptp_clockmatrix.c b/drivers/ptp/ptp_clockmatrix.c index 3a18f38..dafc4f6 100644 --- a/drivers/ptp/ptp_clockmatrix.c +++ b/drivers/ptp/ptp_clockmatrix.c @@ -1363,43 +1363,15 @@ static int idtcm_output_enable(struct idtcm_channel *channel, return idtcm_write(idtcm, (u16)base, OUT_CTRL_1, &val, sizeof(val)); } -static int idtcm_output_mask_enable(struct idtcm_channel *channel, - bool enable) -{ - u16 mask; - int err; - u8 outn; - - mask = channel->output_mask; - outn = 0; - - while (mask) { - if (mask & 0x1) { - err = idtcm_output_enable(channel, enable, outn); - if (err) - return err; - } - - mask >>= 0x1; - outn++; - } - - return 0; -} - static int idtcm_perout_enable(struct idtcm_channel *channel, struct ptp_perout_request *perout, bool enable) { struct idtcm *idtcm = channel->idtcm; - unsigned int flags = perout->flags; struct timespec64 ts = {0, 0}; int err; - if (flags == PEROUT_ENABLE_OUTPUT_MASK) - err = idtcm_output_mask_enable(channel, enable); - else - err = idtcm_output_enable(channel, enable, perout->index); + err = idtcm_output_enable(channel, enable, perout->index); if (err) { dev_err(idtcm->dev, "Unable to set output enable"); @@ -1903,7 +1875,7 @@ static int idtcm_adjtime(struct ptp_clock_info *ptp, s64 delta) int err; if (channel->phase_pull_in == true) - return 0; + return -EBUSY; mutex_lock(idtcm->lock); diff --git a/drivers/ptp/ptp_clockmatrix.h b/drivers/ptp/ptp_clockmatrix.h index 4379650..bf1e49409 100644 --- a/drivers/ptp/ptp_clockmatrix.h +++ b/drivers/ptp/ptp_clockmatrix.h @@ -54,8 +54,6 @@ #define LOCK_TIMEOUT_MS (2000) #define LOCK_POLL_INTERVAL_MS (10) -#define PEROUT_ENABLE_OUTPUT_MASK (0xdeadbeef) - #define IDTCM_MAX_WRITE_COUNT (512) #define PHASE_PULL_IN_MAX_PPB (144000) -- 2.7.4
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