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[net-next,v7,2/5] ptp: clockmatrix: set write phase timer to 0 when not in PCW mode

Message ID LV3P220MB1202878508CD42D5E8CAA565A0292@LV3P220MB1202.NAMP220.PROD.OUTLOOK.COM (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series [net-next,v7,1/5] ptp: clockmatrix: support 32-bit address space | expand

Checks

Context Check Description
netdev/series_format warning Series does not have a cover letter
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 939 this patch: 939
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 2 of 2 maintainers
netdev/build_clang success Errors and warnings before: 956 this patch: 956
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 956 this patch: 956
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 20 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-03-15--03-00 (tests: 907)

Commit Message

Min Li March 14, 2024, 3:37 p.m. UTC 
From: Min Li <min.li.xe@renesas.com>

In order for phase pull-in to work, write phase timer shall be 0
when not in write phase mode. Also Fix u8 -> u16, DPLL_WF_TIMER
and DPLL_WP_TIMER are 2-byte registers

Signed-off-by: Min Li <min.li.xe@renesas.com>
---
 drivers/ptp/ptp_clockmatrix.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/drivers/ptp/ptp_clockmatrix.c b/drivers/ptp/ptp_clockmatrix.c
index f8556627befa..d069b6e451ef 100644
--- a/drivers/ptp/ptp_clockmatrix.c
+++ b/drivers/ptp/ptp_clockmatrix.c
@@ -1396,6 +1396,20 @@  static int idtcm_set_pll_mode(struct idtcm_channel *channel,
 	struct idtcm *idtcm = channel->idtcm;
 	int err;
 	u8 dpll_mode;
+	u8 buf[2] = {0};
+
+	/* Setup WF/WP timer for phase pull-in to work correctly */
+	err = idtcm_write(idtcm, channel->dpll_n, DPLL_WF_TIMER,
+			  buf, sizeof(buf));
+	if (err)
+		return err;
+
+	if (mode == PLL_MODE_WRITE_PHASE)
+		buf[0] = 160;
+	err = idtcm_write(idtcm, channel->dpll_n, DPLL_WP_TIMER,
+			  buf, sizeof(buf));
+	if (err)
+		return err;
 
 	err = idtcm_read(idtcm, channel->dpll_n,
 			 IDTCM_FW_REG(idtcm->fw_ver, V520, DPLL_MODE),