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From: Imre Kaloz <kaloz@kernel.org>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] w1: sgi_w1: Search the bus only once
Date: Tue, 13 Oct 2026 11:50:46 +0200	[thread overview]
Message-ID: <20261013095046.6006-3-kaloz@kernel.org> (raw)
In-Reply-To: <20261013095046.6006-1-kaloz@kernel.org>

The slaves on this bus are soldered to the board, so rescanning it
every timeout period only busy-waits through the time slots.

Signed-off-by: Imre Kaloz <kaloz@kernel.org>
---
 drivers/w1/masters/sgi_w1.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/w1/masters/sgi_w1.c b/drivers/w1/masters/sgi_w1.c
index 48c10062022c..a583821d2421 100644
--- a/drivers/w1/masters/sgi_w1.c
+++ b/drivers/w1/masters/sgi_w1.c
@@ -90,6 +90,9 @@ static int sgi_w1_probe(struct platform_device *pdev)
 	sdev->bus_master.reset_bus = sgi_w1_reset_bus;
 	sdev->bus_master.touch_bit = sgi_w1_touch_bit;
 
+	/* The slaves are soldered on; one search finds them all. */
+	sdev->bus_master.search_count = 1;
+
 	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata) {
 		strscpy(sdev->dev_id, pdata->dev_id, sizeof(sdev->dev_id));
-- 
2.47.3


      parent reply	other threads:[~2026-10-13  9:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-13  9:50 [PATCH 0/2] w1: Search the SGI 1-wire buses " Imre Kaloz
2026-10-13  9:50 ` [PATCH 1/2] w1: Let bus masters set the search count Imre Kaloz
2026-10-13  9:50 ` Imre Kaloz [this message]

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