From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4170ACD4F4A for ; Mon, 18 May 2026 19:48:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hYt6PldvzPMHRdOLH3aFy/RzeedQQAl09+3kZ5Zy4GI=; b=pHosMkHyHlo+X5 9DiBVEpiDriy0p5KjHN5Il9iPvkAoRORMc1nMbrL45wS/w4wcXvqyRbA2bzl35evZyAQeferQKGtW Sv1CmOpoFRCk7yG3rrTXP1zzowJ2jQWn04Dfb11/Sd56oiTjwRm+tkGwbBPZ10Rz5Y6Yxse1g3k40 I5cROec2IlhGIhzj1pbv9kuaZ2BQhthr+KW5yzdi9StKl9OP5cwZrf3UCcRvOBZmZCziO/FBejHUy GdLLELq6SLemEPO4pu+m+yR1xn6umClPxe0HE2uA3WCixIxCYwx0fJAsZ78QhfXVuRJ1noIMGZIAq Cs0ZRJaCKQiEtCiHTsiQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wP3we-0000000GlAs-2ffx; Mon, 18 May 2026 19:48:08 +0000 Received: from smtp.forwardemail.net ([121.127.44.73]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wP3wa-0000000Gl7s-3F3L for linux-amlogic@lists.infradead.org; Mon, 18 May 2026 19:48:07 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-ID: Date: Subject: Cc: To: From; q=dns/txt; s=fe-e1b5cab7be; t=1779133684; bh=ix3tqGj9O/73OPDzykQq3AN3AmgT+JSGiiTMGr+5/U4=; b=i9wkstBjXuW2iJ6R4OUVlT8vfxaw27j0cPBdGbQnqZFjCw9Tip9JsBwAwTHTIYamUKQWxroy9 LZj/tswsd9FiD+0iCTPXnoLDaqi+ZLTcvw2NoAOWiLd6eB/X99jDGwtWlCsUqV3JS23oMFDEaQD AUVqE/YYQ1zHEX/dW5WBzORZlOSnS3kryuWf30XNfVzhmyv71YDrW7OIDmTqXSBY0DTiM39sC8l Py0QMvIpBkma/aDte5A5Ibifl/k5V0DfFrJoUuS+aN5Tj5girs4+QcQYOsdHr+m4OnnXwFpTYOh mLQ8y40QT+astmZcRA6fAh4WSQpHx/mjI5cP90lgFBvw== X-Forward-Email-ID: 6a0b6cecb74b0ebd362eee20 X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.73 X-Forward-Email-Version: 2.8.12 X-Forward-Email-Website: https://forwardemail.net X-Complaints-To: abuse@forwardemail.net X-Report-Abuse: abuse@forwardemail.net X-Report-Abuse-To: abuse@forwardemail.net From: Jonas Karlman To: Neil Armstrong , Kevin Hilman , Heiko Stuebner , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jerome Brunet , Martin Blumenstingl Cc: dri-devel@lists.freedesktop.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jonas Karlman , linux-rockchip@lists.infradead.org Subject: [PATCH 01/13] drm/meson: dw-hdmi: Report connector status based on HPD bit Date: Mon, 18 May 2026 19:47:29 +0000 Message-ID: <20260518194744.2483580-2-jonas@kwiboo.se> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260518194744.2483580-1-jonas@kwiboo.se> References: <20260518194744.2483580-1-jonas@kwiboo.se> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260518_124804_904813_9A929EEE X-CRM114-Status: GOOD ( 10.47 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org G12A added support for RX-SENSE, status for both HPD and RX-SENSE is reported in the TOP_STAT0 register. Limit read_hpd() phy ops to only report connected status based on the HPD status bit in TOP_STAT0, to help ensure that EDID can be read from the sink in the connector detect() func. Fixes: 3b7c1237a72a ("drm/meson: Add G12A support for the DW-HDMI Glue") Signed-off-by: Jonas Karlman --- drivers/gpu/drm/meson/meson_dw_hdmi.c | 6 ++++-- drivers/gpu/drm/meson/meson_dw_hdmi.h | 3 +++ 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c index 2a8756da569b..993f6d5d4b29 100644 --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c @@ -457,9 +457,11 @@ static enum drm_connector_status dw_hdmi_read_hpd(struct dw_hdmi *hdmi, void *data) { struct meson_dw_hdmi *dw_hdmi = (struct meson_dw_hdmi *)data; + unsigned int stat; - return !!dw_hdmi->data->top_read(dw_hdmi, HDMITX_TOP_STAT0) ? - connector_status_connected : connector_status_disconnected; + stat = dw_hdmi->data->top_read(dw_hdmi, HDMITX_TOP_STAT0); + return stat & HDMITX_TOP_STAT0_HPD ? connector_status_connected : + connector_status_disconnected; } static void dw_hdmi_setup_hpd(struct dw_hdmi *hdmi, diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.h b/drivers/gpu/drm/meson/meson_dw_hdmi.h index 08e1c14e4ea0..cb4616daf667 100644 --- a/drivers/gpu/drm/meson/meson_dw_hdmi.h +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.h @@ -157,4 +157,7 @@ */ #define HDMITX_TOP_STAT0 (0x00E) +#define HDMITX_TOP_STAT0_HPD BIT(0) +#define HDMITX_TOP_STAT0_RXSENSE BIT(1) + #endif /* __MESON_DW_HDMI_H */ -- 2.54.0 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic