From patchwork Thu Dec 10 13:46:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 11964679 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B3629C4361B for ; Thu, 10 Dec 2020 13:53:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C77A224F9 for ; Thu, 10 Dec 2020 13:53:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389162AbgLJNs4 (ORCPT ); Thu, 10 Dec 2020 08:48:56 -0500 Received: from wnew4-smtp.messagingengine.com ([64.147.123.18]:58307 "EHLO wnew4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389313AbgLJNsr (ORCPT ); Thu, 10 Dec 2020 08:48:47 -0500 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailnew.west.internal (Postfix) with ESMTP id 5FD093DB; Thu, 10 Dec 2020 08:47:04 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute4.internal (MEProxy); Thu, 10 Dec 2020 08:47:05 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=U1K9CT6BAj2yS ZWLXy5gbPJsyoT3Q5gJl2rqRfiHtgY=; b=CXygC3Nk3R1wTsazEChyXKFfzl6r4 /Gw8fvPx7Rey/VLw8QvfTLvLcBf5v9CjZfptriGTassqsZeILVNnx4RwJiQxZnmM ibuvPeDWn2WPGiVMuK4L4mLK6nDmMIG6wRBdPV61NzK33j9VoxIIHKKqailcUG0L OejVvaAw0agFChyMkHKnr6MC+hmCVCaPTbyDu5hEKQZUpKWHZWRIeHuo8PHXFQBB /T3mpxLyTCyw+TxlFIhuGcQEN3F9FeXHtU2J/M/JNdp1H8MPpzA7aOnFs0Whe24y H+9Salq9XdHfnADGYGF0gj5yRrTloglHMBNr33XNaJGw+G3kwQAPChIpQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=U1K9CT6BAj2ySZWLXy5gbPJsyoT3Q5gJl2rqRfiHtgY=; b=ASeCylp9 Ipzj0CJC3HVU1MCeqY19Jt0rvVI5UA4lPdopEKffCDtoRxdSOiw8KO8s7iihwxf7 TBw6DhgkjXMPefSnwKvppf+xGcK5S7SdGYFvePtk84RaMC3Tz2KKT/4+6OBen48U S4wMOiENXPAmvLjKtOyjYWIJg2GcPtPfQNB4HB0VB+yduTQSRNEXgYFPo0vL+Ifz 7vyzb12avB5Mp7ucTMmbPnB4AHhHWy5jG4N+aQ3MFfaQfneogmOr8aTl56KTtw84 tUVRIszdl98mwzFcqNDpAves5XSB9eyJdAJ28owzfZ1pCr7KhJ5Iis9tmb4FhQLj Ku2XwladxFdsKA== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrudektddgheeiucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpeforgigihhm vgcutfhiphgrrhguuceomhgrgihimhgvsegtvghrnhhordhtvggthheqnecuggftrfgrth htvghrnhepvdekleevfeffkeejhfffueelteelfeduieefheduudfggffhhfffheevveeh hedvnecukfhppeeltddrkeelrdeikedrjeeinecuvehluhhsthgvrhfuihiivgeptdenuc frrghrrghmpehmrghilhhfrhhomhepmhgrgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Received: from localhost (lfbn-tou-1-1502-76.w90-89.abo.wanadoo.fr [90.89.68.76]) by mail.messagingengine.com (Postfix) with ESMTPA id ACC16108005B; Thu, 10 Dec 2020 08:47:03 -0500 (EST) From: Maxime Ripard To: Eric Anholt , Maarten Lankhorst , Thomas Zimmermann , Maxime Ripard , Daniel Vetter , David Airlie Cc: Jason Cooper , bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, Marc Zyngier , linux-media@vger.kernel.org, Hans Verkuil , linux-kernel@vger.kernel.org, Mauro Carvalho Chehab , Thomas Gleixner , Dave Stevenson , linux-rpi-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org Subject: [PATCH 10/15] drm/vc4: hdmi: Support BCM2711 CEC interrupt setup Date: Thu, 10 Dec 2020 14:46:43 +0100 Message-Id: <20201210134648.272857-11-maxime@cerno.tech> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201210134648.272857-1-maxime@cerno.tech> References: <20201210134648.272857-1-maxime@cerno.tech> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The HDMI controller found in the BCM2711 has an external interrupt controller for the CEC and hotplug interrupt shared between the two instances. Let's add a variant flag to register a single interrupt handler and deals with the interrupt handler setup, or two interrupt handlers relying on an external irqchip. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_hdmi.c | 42 ++++++++++++++++++++++++++-------- drivers/gpu/drm/vc4/vc4_hdmi.h | 7 ++++++ 2 files changed, 39 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 80a81fcea315..d208b7d1d937 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -1593,9 +1593,11 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable) ((3600 / usecs) << VC4_HDMI_CEC_CNT_TO_3600_US_SHIFT) | ((3500 / usecs) << VC4_HDMI_CEC_CNT_TO_3500_US_SHIFT)); - HDMI_WRITE(HDMI_CEC_CPU_MASK_CLEAR, VC4_HDMI_CPU_CEC); + if (!vc4_hdmi->variant->external_irq_controller) + HDMI_WRITE(HDMI_CEC_CPU_MASK_CLEAR, VC4_HDMI_CPU_CEC); } else { - HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, VC4_HDMI_CPU_CEC); + if (!vc4_hdmi->variant->external_irq_controller) + HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, VC4_HDMI_CPU_CEC); HDMI_WRITE(HDMI_CEC_CNTRL_5, val | VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET); } @@ -1670,8 +1672,6 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi *vc4_hdmi) cec_fill_conn_info_from_drm(&conn_info, &vc4_hdmi->connector); cec_s_conn_info(vc4_hdmi->cec_adap, &conn_info); - HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, 0xffffffff); - value = HDMI_READ(HDMI_CEC_CNTRL_1); /* Set the logical address to Unregistered */ value |= VC4_HDMI_CEC_ADDR_MASK; @@ -1679,12 +1679,32 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi *vc4_hdmi) vc4_hdmi_cec_update_clk_div(vc4_hdmi); - ret = devm_request_threaded_irq(&pdev->dev, platform_get_irq(pdev, 0), - vc4_cec_irq_handler, - vc4_cec_irq_handler_thread, 0, - "vc4 hdmi cec", vc4_hdmi); - if (ret) - goto err_delete_cec_adap; + if (vc4_hdmi->variant->external_irq_controller) { + ret = devm_request_threaded_irq(&pdev->dev, + platform_get_irq_byname(pdev, "cec-rx"), + vc4_cec_irq_handler_rx_bare, + vc4_cec_irq_handler_rx_thread, 0, + "vc4 hdmi cec rx", vc4_hdmi); + if (ret) + goto err_delete_cec_adap; + + ret = devm_request_threaded_irq(&pdev->dev, + platform_get_irq_byname(pdev, "cec-tx"), + vc4_cec_irq_handler_tx_bare, + vc4_cec_irq_handler_tx_thread, 0, + "vc4 hdmi cec tx", vc4_hdmi); + if (ret) + goto err_delete_cec_adap; + } else { + HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, 0xffffffff); + + ret = devm_request_threaded_irq(&pdev->dev, platform_get_irq(pdev, 0), + vc4_cec_irq_handler, + vc4_cec_irq_handler_thread, 0, + "vc4 hdmi cec", vc4_hdmi); + if (ret) + goto err_delete_cec_adap; + } ret = cec_register_adapter(vc4_hdmi->cec_adap, &pdev->dev); if (ret < 0) @@ -2083,6 +2103,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = { PHY_LANE_CK, }, .unsupported_odd_h_timings = true, + .external_irq_controller = true, .init_resources = vc5_hdmi_init_resources, .csc_setup = vc5_hdmi_csc_setup, @@ -2109,6 +2130,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = { PHY_LANE_2, }, .unsupported_odd_h_timings = true, + .external_irq_controller = true, .init_resources = vc5_hdmi_init_resources, .csc_setup = vc5_hdmi_csc_setup, diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index adc4bf33ff15..27352827f70c 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -64,6 +64,13 @@ struct vc4_hdmi_variant { /* The BCM2711 cannot deal with odd horizontal pixel timings */ bool unsupported_odd_h_timings; + /* + * The BCM2711 CEC/hotplug IRQ controller is shared between the + * two HDMI controllers, and we have a proper irqchip driver for + * it. + */ + bool external_irq_controller; + /* Callback to get the resources (memory region, interrupts, * clocks, etc) for that variant. */