Linux wireless drivers development
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From: Ping-Ke Shih <pkshih@realtek.com>
To: <linux-wireless@vger.kernel.org>
Cc: <echuang@realtek.com>, <kevin_yang@realtek.com>
Subject: [PATCH rtw-next 1/8] wifi: rtw89: pack I/O during bb_sethw to reduce API execution time
Date: Sun, 12 Jul 2026 11:44:59 +0800	[thread overview]
Message-ID: <20260712034506.53209-2-pkshih@realtek.com> (raw)
In-Reply-To: <20260712034506.53209-1-pkshih@realtek.com>

From: Eric Huang <echuang@realtek.com>

Wrap rtw89_chip_bb_sethw() with rtw89_io_pack/unpack so all register
writes during baseband hardware initialization are batched into a single
bus transaction. This reduces API execution time from ~11000 us to
~4000 us on affected platforms.

Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/core.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index 174349c6bc58..0f6d4ad66fe2 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -7810,8 +7810,12 @@ static inline void rtw89_chip_bb_sethw(struct rtw89_dev *rtwdev)
 {
 	const struct rtw89_chip_info *chip = rtwdev->chip;
 
+	rtw89_io_pack(rtwdev);
+
 	if (chip->ops->bb_sethw)
 		chip->ops->bb_sethw(rtwdev);
+
+	rtw89_io_unpack(rtwdev);
 }
 
 static inline void rtw89_chip_rfk_init(struct rtw89_dev *rtwdev)
-- 
2.25.1


  reply	other threads:[~2026-07-12  3:46 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-12  3:44 [PATCH rtw-next 0/8] wifi: rtw89: add RF diagnosis and update random patches Ping-Ke Shih
2026-07-12  3:44 ` Ping-Ke Shih [this message]
2026-07-12  3:45 ` [PATCH rtw-next 2/8] wifi: rtw89: mac: abstract register definition of firmware boot debug Ping-Ke Shih
2026-07-12  3:45 ` [PATCH rtw-next 3/8] wifi: rtw89: 8922d: add TX time limit for 2GHz band Ping-Ke Shih
2026-07-12  3:45 ` [PATCH rtw-next 4/8] wifi: rtw89: introduce helper to get tx shape index Ping-Ke Shih
2026-07-12  3:45 ` [PATCH rtw-next 5/8] wifi: rtw89: add tx shape v0 to keep built-in arrays compatible during transitions Ping-Ke Shih
2026-07-12  3:45 ` [PATCH rtw-next 6/8] wifi: rtw89: extend tx shape format for regulatory 6 GHz power type Ping-Ke Shih
2026-07-12  3:45 ` [PATCH rtw-next 7/8] wifi: rtw89: fw: do bb_preinit before downloading firmware Ping-Ke Shih
2026-07-12  3:45 ` [PATCH rtw-next 8/8] wifi: rtw89: debug: add diagnosis for RF Ping-Ke Shih

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