From patchwork Fri Aug 25 02:44:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Reka Norman X-Patchwork-Id: 13364965 Received: from mail-pf1-f182.google.com (mail-pf1-f182.google.com [209.85.210.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AE86B7E0 for ; Fri, 25 Aug 2023 02:52:28 +0000 (UTC) Received: by mail-pf1-f182.google.com with SMTP id d2e1a72fcca58-68bed28cb22so394278b3a.2 for ; Thu, 24 Aug 2023 19:52:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1692931948; x=1693536748; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=m3+URBqZpZF2x77jWPMvlepFC5eyrNLor5lT2YRYaCA=; b=jwSGOFVLVU0xCoY5pLfoOIfVqNP8RbKX7XksFTPUAFAqV6iwheXJgNjC8ZtGGe6m1x CotQ0N88c1rbuo3NZtpi8JoLZhjBMz8TjxRUUiYVCMASj9wYBBpvCU/Yhl9LNYZRpeqt sNA4eLMBgnzgSrLHMhAFDs6rXjqpsxbWgdoVg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692931948; x=1693536748; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=m3+URBqZpZF2x77jWPMvlepFC5eyrNLor5lT2YRYaCA=; b=VfKa2K7KdkqrQNt5QxSvq5FrFC47OB65uEdzE4czLR41BmVm2qoyGI4DMcHtnynuJ3 81aqCdv6Y9BtF9xv81K5laFUHDaLqgQpsogksHxP/vIz1dsn2vAM+ZOIGbcHI8SoSYnD IhEeWcPCKdDS8XCm+4LWKMNF2KtEfl6Q8/VWmFIjblkmubwVf2hyHfPKaO7thCsTBp81 qk+AwF7AqqtLcPCfQVjItIfGrlUuKcrYHY+KiZOWyEADFOA9f6fPdw45Wt+Zw2EU7xjk SJMFb8MqxtF4hdXplMm+5HB/ITudD5cCGEEwN1pW5z9xHeUuQtQc7mQc7KRYdXWKjeKR qEpA== X-Gm-Message-State: AOJu0YzYwNZ3aG9A94NCJELp6Yy5KPjtui2frdw9oLNtaLquu4ttaddm uzDNkijVt8fZgp3tFVB31QqfZg== X-Google-Smtp-Source: AGHT+IEC1VIJWj32bHEOO6xQnrTuBhX+AC88P89p+LUarmfmkZr7HIRKlDIkSrMR0GjJYmfbF0GsRw== X-Received: by 2002:a05:6a20:1447:b0:148:40cf:b832 with SMTP id a7-20020a056a20144700b0014840cfb832mr18251618pzi.18.1692931948099; Thu, 24 Aug 2023 19:52:28 -0700 (PDT) Received: from rekanorman3.syd.corp.google.com ([2401:fa00:9:14:9fe1:d4b1:42cc:882f]) by smtp.gmail.com with ESMTPSA id q10-20020a170902a3ca00b001bb0eebd90asm420847plb.245.2023.08.24.19.52.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Aug 2023 19:52:27 -0700 (PDT) From: Reka Norman To: Hans Verkuil Cc: Daisuke Nojiri , Neil Armstrong , Stefan Adolfsson , Reka Norman , Benson Leung , Guenter Roeck , Mauro Carvalho Chehab , chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org Subject: [PATCH v2 7/9] media: cros-ec-cec: Allow specifying multiple HDMI connectors Date: Fri, 25 Aug 2023 12:44:00 +1000 Message-ID: <20230825024735.1443836-8-rekanorman@chromium.org> X-Mailer: git-send-email 2.42.0.rc2.253.gd59a3bf2b4-goog In-Reply-To: <20230825024735.1443836-1-rekanorman@chromium.org> References: <20230825024735.1443836-1-rekanorman@chromium.org> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Update the cec_dmi_match_table to allow specifying multiple HDMI connectors for each device. Signed-off-by: Reka Norman --- Changes in v2: - Use NULL-terminated arrays for the conns field of cec_dmi_match .../media/cec/platform/cros-ec/cros-ec-cec.c | 49 ++++++++++++------- 1 file changed, 30 insertions(+), 19 deletions(-) diff --git a/drivers/media/cec/platform/cros-ec/cros-ec-cec.c b/drivers/media/cec/platform/cros-ec/cros-ec-cec.c index 6989e63c05be..371699d599de 100644 --- a/drivers/media/cec/platform/cros-ec/cros-ec-cec.c +++ b/drivers/media/cec/platform/cros-ec/cros-ec-cec.c @@ -284,38 +284,43 @@ static SIMPLE_DEV_PM_OPS(cros_ec_cec_pm_ops, #if IS_ENABLED(CONFIG_PCI) && IS_ENABLED(CONFIG_DMI) /* - * The Firmware only handles a single CEC interface tied to a single HDMI - * connector we specify along with the DRM device name handling the HDMI output + * Specify the DRM device name handling the HDMI output and the HDMI connector + * corresponding to each CEC port. The order of connectors must match the order + * in the EC (first connector is EC port 0, ...), and the number of connectors + * must match the number of ports in the EC (which can be queried using the + * EC_CMD_CEC_PORT_COUNT host command). */ struct cec_dmi_match { const char *sys_vendor; const char *product_name; const char *devname; - const char *conn; + const char *const *conns; }; +static const char *const fizz_conns[] = { "Port B", NULL }; + static const struct cec_dmi_match cec_dmi_match_table[] = { /* Google Fizz */ - { "Google", "Fizz", "0000:00:02.0", "Port B" }, + { "Google", "Fizz", "0000:00:02.0", fizz_conns }, /* Google Brask */ - { "Google", "Brask", "0000:00:02.0", "Port B" }, + { "Google", "Brask", "0000:00:02.0", fizz_conns }, /* Google Moli */ - { "Google", "Moli", "0000:00:02.0", "Port B" }, + { "Google", "Moli", "0000:00:02.0", fizz_conns }, /* Google Kinox */ - { "Google", "Kinox", "0000:00:02.0", "Port B" }, + { "Google", "Kinox", "0000:00:02.0", fizz_conns }, /* Google Kuldax */ - { "Google", "Kuldax", "0000:00:02.0", "Port B" }, + { "Google", "Kuldax", "0000:00:02.0", fizz_conns }, /* Google Aurash */ - { "Google", "Aurash", "0000:00:02.0", "Port B" }, + { "Google", "Aurash", "0000:00:02.0", fizz_conns }, /* Google Gladios */ - { "Google", "Gladios", "0000:00:02.0", "Port B" }, + { "Google", "Gladios", "0000:00:02.0", fizz_conns }, /* Google Lisbon */ - { "Google", "Lisbon", "0000:00:02.0", "Port B" }, + { "Google", "Lisbon", "0000:00:02.0", fizz_conns }, }; static struct device *cros_ec_cec_find_hdmi_dev(struct device *dev, - const char **conn) + const char * const **conns) { int i; @@ -332,7 +337,7 @@ static struct device *cros_ec_cec_find_hdmi_dev(struct device *dev, if (!d) return ERR_PTR(-EPROBE_DEFER); put_device(d); - *conn = m->conn; + *conns = m->conns; return d; } } @@ -346,7 +351,7 @@ static struct device *cros_ec_cec_find_hdmi_dev(struct device *dev, #else static struct device *cros_ec_cec_find_hdmi_dev(struct device *dev, - const char **conn) + const char * const **conns) { return ERR_PTR(-ENODEV); } @@ -388,7 +393,7 @@ static int cros_ec_cec_get_write_cmd_version(struct cros_ec_cec *cros_ec_cec) static int cros_ec_cec_init_port(struct device *dev, struct cros_ec_cec *cros_ec_cec, int port_num, struct device *hdmi_dev, - const char *conn) + const char * const *conns) { struct cros_ec_cec_port *port; int ret; @@ -406,7 +411,13 @@ static int cros_ec_cec_init_port(struct device *dev, if (IS_ERR(port->adap)) return PTR_ERR(port->adap); - port->notify = cec_notifier_cec_adap_register(hdmi_dev, conn, + if (!conns[port_num]) { + dev_err(dev, "no conn for port %d\n", port_num); + ret = -ENODEV; + goto out_probe_adapter; + } + + port->notify = cec_notifier_cec_adap_register(hdmi_dev, conns[port_num], port->adap); if (!port->notify) { ret = -ENOMEM; @@ -435,10 +446,10 @@ static int cros_ec_cec_probe(struct platform_device *pdev) struct cros_ec_cec *cros_ec_cec; struct cros_ec_cec_port *port; struct device *hdmi_dev; - const char *conn = NULL; + const char * const *conns = NULL; int ret; - hdmi_dev = cros_ec_cec_find_hdmi_dev(&pdev->dev, &conn); + hdmi_dev = cros_ec_cec_find_hdmi_dev(&pdev->dev, &conns); if (IS_ERR(hdmi_dev)) return PTR_ERR(hdmi_dev); @@ -460,7 +471,7 @@ static int cros_ec_cec_probe(struct platform_device *pdev) for (int i = 0; i < cros_ec_cec->num_ports; i++) { ret = cros_ec_cec_init_port(&pdev->dev, cros_ec_cec, i, - hdmi_dev, conn); + hdmi_dev, conns); if (ret) goto unregister_ports; }