diff mbox series

[net-next,4/9] ptp: hclge: convert .adjfreq to .adjfine

Message ID 20221109230945.545440-5-jacob.e.keller@intel.com (mailing list archive)
State Accepted
Commit 974557020a5917f73fb7d7218402ef744b109c41
Delegated to: Netdev Maintainers
Headers show
Series ptp: convert remaining users of .adjfreq | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 5 maintainers not CCed: wangjie125@huawei.com huangguangbin2@huawei.com pabeni@redhat.com davem@davemloft.net edumazet@google.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
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: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 47 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Jacob Keller Nov. 9, 2022, 11:09 p.m. UTC 
The hclge implementation of .adjfreq is implemented in terms of a
straight forward "base * ppb / 1 billion" calculation.

Convert this to the newer .adjfine, using the recently added
adjust_by_scaled_ppm helper function.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Cc: Salil Mehta <salil.mehta@huawei.com>
Cc: Richard Cochran <richardcochran@gmail.com>
---
 .../hisilicon/hns3/hns3pf/hclge_ptp.c         | 22 +++++--------------
 1 file changed, 5 insertions(+), 17 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c
index a40b1583f114..80a2a0073d97 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c
@@ -22,28 +22,16 @@  static int hclge_ptp_get_cycle(struct hclge_dev *hdev)
 	return 0;
 }
 
-static int hclge_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+static int hclge_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm)
 {
 	struct hclge_dev *hdev = hclge_ptp_get_hdev(ptp);
 	struct hclge_ptp_cycle *cycle = &hdev->ptp->cycle;
-	u64 adj_val, adj_base, diff;
+	u64 adj_val, adj_base;
 	unsigned long flags;
-	bool is_neg = false;
 	u32 quo, numerator;
 
-	if (ppb < 0) {
-		ppb = -ppb;
-		is_neg = true;
-	}
-
 	adj_base = (u64)cycle->quo * (u64)cycle->den + (u64)cycle->numer;
-	adj_val = adj_base * ppb;
-	diff = div_u64(adj_val, 1000000000ULL);
-
-	if (is_neg)
-		adj_val = adj_base - diff;
-	else
-		adj_val = adj_base + diff;
+	adj_val = adjust_by_scaled_ppm(adj_base, scaled_ppm);
 
 	/* This clock cycle is defined by three part: quotient, numerator
 	 * and denominator. For example, 2.5ns, the quotient is 2,
@@ -446,7 +434,7 @@  static int hclge_ptp_create_clock(struct hclge_dev *hdev)
 	ptp->info.max_adj = HCLGE_PTP_CYCLE_ADJ_MAX;
 	ptp->info.n_ext_ts = 0;
 	ptp->info.pps = 0;
-	ptp->info.adjfreq = hclge_ptp_adjfreq;
+	ptp->info.adjfine = hclge_ptp_adjfine;
 	ptp->info.adjtime = hclge_ptp_adjtime;
 	ptp->info.gettimex64 = hclge_ptp_gettimex;
 	ptp->info.settime64 = hclge_ptp_settime;
@@ -504,7 +492,7 @@  int hclge_ptp_init(struct hclge_dev *hdev)
 		goto out;
 
 	set_bit(HCLGE_PTP_FLAG_EN, &hdev->ptp->flags);
-	ret = hclge_ptp_adjfreq(&hdev->ptp->info, 0);
+	ret = hclge_ptp_adjfine(&hdev->ptp->info, 0);
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
 			"failed to init freq, ret = %d\n", ret);