linux-kernel - [PATCH] gpu: drm: mediatek: correct clk setting AUX_RX_UI_CNT_THR_AUX_FOR

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Message-ID: <20250818084242.1045095-1-payne.lin@mediatek.com>
Date: Mon, 18 Aug 2025 16:42:36 +0800
From: payne.lin <payne.lin@...iatek.com>
To: Chun-Kuang Hu <chunkuang.hu@...nel.org>, Philipp Zabel
	<p.zabel@...gutronix.de>, David Airlie <airlied@...il.com>, Simona Vetter
	<simona@...ll.ch>, Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
CC: <dri-devel@...ts.freedesktop.org>, <linux-mediatek@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>,
	<sirius.wang@...iatek.com>, <vince-wl.liu@...iatek.com>,
	<jh.hsu@...iatek.com>, Bincai Liu <bincai.liu@...iatek.com>, Payne Lin
	<payne.lin@...iatek.com>
Subject: [PATCH] gpu: drm: mediatek: correct clk setting AUX_RX_UI_CNT_THR_AUX_FOR_26M

From: Bincai Liu <bincai.liu@...iatek.com>

Updated the definition of AUX_RX_UI_CNT_THR_AUX_FOR_26M from 13 to 14.
No other code or logic changes were made; only the macro value was modified.
This change affects the timing configuration for AUX RX at 26MHz.
The formula is xtal_clk / 2 + 1.

Signed-off-by: Bincai Liu <bincai.liu@...iatek.com>
Signed-off-by: Payne Lin <payne.lin@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dp_reg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dp_reg.h b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
index 8ad7a9cc259e..f8c7b3c0935f 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp_reg.h
+++ b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
@@ -301,7 +301,7 @@
 #define AUX_TIMEOUT_THR_AUX_TX_P0_VAL			0x1595
 #define MTK_DP_AUX_P0_3614			0x3614
 #define AUX_RX_UI_CNT_THR_AUX_TX_P0_MASK		GENMASK(6, 0)
-#define AUX_RX_UI_CNT_THR_AUX_FOR_26M			13
+#define AUX_RX_UI_CNT_THR_AUX_FOR_26M			14
 #define MTK_DP_AUX_P0_3618			0x3618
 #define AUX_RX_FIFO_FULL_AUX_TX_P0_MASK			BIT(9)
 #define AUX_RX_FIFO_WRITE_POINTER_AUX_TX_P0_MASK	GENMASK(3, 0)
-- 
2.45.2