linux-kernel - [PATCH v4] arm64: defconfig: mediatek: enable PHY drivers

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Message-ID: <20250512131933.1247830-1-vignesh.raman@collabora.com>
Date: Mon, 12 May 2025 18:49:24 +0530
From: Vignesh Raman <vignesh.raman@...labora.com>
To: linux-mediatek@...ts.infradead.org
Cc: chunkuang.hu@...nel.org,
	p.zabel@...gutronix.de,
	nfraprado@...labora.com,
	angelogioacchino.delregno@...labora.com,
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Subject: [PATCH v4] arm64: defconfig: mediatek: enable PHY drivers

The mediatek display driver fails to probe on mt8173-elm-hana and
mt8183-kukui-jacuzzi-juniper-sku16 in v6.14-rc4 due to missing PHY
configurations.

Commit 924d66011f24 ("drm/mediatek: stop selecting foreign drivers")
stopped selecting the MediaTek PHY drivers, requiring them to be
explicitly enabled in defconfig.

Enable the following PHY drivers for MediaTek platforms:
CONFIG_PHY_MTK_HDMI=m for HDMI display
CONFIG_PHY_MTK_MIPI_DSI=m for DSI display
CONFIG_PHY_MTK_DP=m for DP display

Fixes: 924d66011f24 ("drm/mediatek: stop selecting foreign drivers")
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
Signed-off-by: Vignesh Raman <vignesh.raman@...labora.com>
---

v2:
  - Include board details in the commit message.  
  - Sort newly added PHY configs in defconfig.

v3:
  - Use defconfig/savedefconfig to get the correct configs ordering.
  - Removed PHY_MTK_XSPHY since it is not required for probing display driver.
  - Add the commit details which deselected the MediaTek PHY drivers and
    added a Fixes tag.
  - Enabled CONFIG_PHY_MTK_DP, which was previously deselected.

v4:
  - Reword commit message.

---
 arch/arm64/configs/defconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 5bb8f09422a2..fa973f6328df 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -1587,6 +1587,9 @@ CONFIG_PHY_HISTB_COMBPHY=y
 CONFIG_PHY_HISI_INNO_USB2=y
 CONFIG_PHY_MVEBU_CP110_COMPHY=y
 CONFIG_PHY_MTK_TPHY=y
+CONFIG_PHY_MTK_HDMI=m
+CONFIG_PHY_MTK_MIPI_DSI=m
+CONFIG_PHY_MTK_DP=m
 CONFIG_PHY_QCOM_EDP=m
 CONFIG_PHY_QCOM_PCIE2=m
 CONFIG_PHY_QCOM_QMP=m
-- 
2.47.2