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(unknown [61.154.14.86]) by smtp.qiye.163.com (Hmail) with ESMTP id 5189b860c; Mon, 19 Oct 2026 16:59:10 +0800 (GMT+08:00) From: Damon Ding To: Andrzej Hajda , Neil Armstrong , Robert Foss , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jingoo Han , Inki Dae , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Peter Griffin , Alim Akhtar , Heiko Stuebner Cc: Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Dmitry Baryshkov , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Damon Ding Subject: [PATCH v4 08/14] drm/bridge: analogix_dp: Skip native HPD interrupt ops for GPIO HPD Date: Mon, 19 Oct 2026 16:58:30 +0800 Message-Id: <20261019085836.3065008-9-damon.ding@rock-chips.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261019085836.3065008-1-damon.ding@rock-chips.com> References: <20261019085836.3065008-1-damon.ding@rock-chips.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-HM-Tid: 0aa15362dcad03a8kunm6ee755052eac4a X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVkaGBlLVhgdTkhNTEIZHxlLSFYVFA kWGhdVEwETFhoSFyQUDg9ZV1kYEgtZQVlNSlVKTk9VSk9VQ01ZV1kWGg8SFR0UWUFZT0tIVUpLSU JDQ0xVSktLVUtZBg++ DKIM-Signature: a=rsa-sha256; b=hk3A1/Kl1OQ9FnfocQX7UYVDnkPSMJdD6ryZb3YNshPp8xdjErKlCjdhuNmdGtY2/WRUCaetl7HLC2B8AZyf7cFHTCVzIwktrTzgWGIlVil/BnDCFT2hw3wLU2Ke63DgSOGxALoD1zryxMBFxL/+uv/IMtxFVIrrzJKA0rGq6/E=; c=relaxed/relaxed; s=default; d=rock-chips.com; v=1; bh=w/AHABs7lpo2wt8m91XWoj05K09t8me1OuP0cukEO70=; h=date:mime-version:subject:message-id:from; X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261019_015918_229807_0C5C1E1E X-CRM114-Status: GOOD ( 11.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org GPIO HPD does not rely on DP controller internal native HPD interrupts. Skip native HPD register manipulations to avoid irrelevant operations. Move the hpd_gpiod guard to its caller so the helper operates purely on the given bitmask, and mute all native HPD interrupts for GPIO mode. Tested-by: Heiko Stuebner Signed-off-by: Damon Ding --- Changes in v2: - Adapt to the newly added IRQF_ONESHOT related commit and expand the commit msg. Changes in v3: - Reorganize the branch layout for hpd_gpiod check. - Simplify the commit msg. Changes in v4: - Add Tested-by tag. --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 2 +- drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 7 ++++++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 287fc16125ef..b92d28546192 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -717,7 +717,7 @@ static irqreturn_t analogix_dp_irq_thread(int irq, void *arg) bool hpd_detected; irq_type = analogix_dp_get_irq_type(dp); - if (irq_type) + if (!dp->hpd_gpiod && irq_type) analogix_dp_clear_hotplug_interrupts(dp, irq_type); if (!dp->hpd_gpiod && analogix_dp_is_rockchip(dp->plat_data->dev_type)) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c index 025da25463a8..af5e5a8ec88d 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c @@ -193,6 +193,11 @@ void analogix_dp_config_interrupt(struct analogix_dp_device *dp) writel(0, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_2); writel(0, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_3); + if (dp->hpd_gpiod) { + analogix_dp_mute_hpd_interrupt(dp, HPD_IRQ_ALL); + return; + } + /* * Either HOTPLUG_CHG interrupt or PLUG + HPD_LOST interrupt * pair can be used to implement hotplug detection. @@ -415,7 +420,7 @@ void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp, u32 irq { u32 reg; - if (dp->hpd_gpiod || !irq_type) + if (!irq_type) return; reg = analogix_dp_irq_type_to_common_int_sta4(irq_type); -- 2.34.1