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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=cX29gQ3Pe2nYNSmOPNFjk0KmvqrTptDWTP83/iCAsdA=; b=pdXSdUx70vR2bESmWqa6Wtiug+ojKSyRJdu+eju0mmirxjSLIUt46pGJFdPK3nXGLF zg3HJdf//4uoYBVlaRPY2bRPyXMZAhGRIyMbX/hgExgdEtaQvkF+mwfAv57/g0V2Hnfd Txo2/gDYL/0S76pIxIjTth22atOLy/HHrTzJAqm9G1PzAdER3CSlpakdK+8S3QIUemTE qIDiN18f2OAykiStk3La9MlEFOfRCvWNRDynBIgHZXJ1Vkt3w8QxfdV3u9rmN3lK5GTw iZUqJnuvlo8XvyNd9TTROD25T946VD2oHVaX6XNaqhjdHQw9ohMSMkj7Y8yf7OwM0A3c xZ5A== X-Gm-Message-State: APjAAAXRdeZOfHLKlDuc9Sewt6eyGEwb7YYRkiQJVPdxtFBdk5Pf51NA 2s81UdMNCUr2NfYC6itg2TC25Qv9805d X-Google-Smtp-Source: APXvYqzvqZ+I6q7rsrnsbANQ2Td41uSXPBSKwBl8ZrPWLMClutzjKDkU8rsrWO96kwNDsFR8NBUJJAomYVqM X-Received: by 2002:a0c:fe0d:: with SMTP id x13mr31660627qvr.88.1580895491114; Wed, 05 Feb 2020 01:38:11 -0800 (PST) Date: Wed, 5 Feb 2020 17:37:44 +0800 In-Reply-To: <20200205093745.79298-1-tzungbi@google.com> Message-Id: <20200205170416.2.I230fd59de28e73934a91cb01424e25b9e84727f4@changeid> Mime-Version: 1.0 References: <20200205093745.79298-1-tzungbi@google.com> X-Mailer: git-send-email 2.25.0.341.g760bfbb309-goog Subject: [PATCH 2/3] drm/mediatek: support HDMI jack status reporting From: Tzung-Bi Shih To: broonie@kernel.org, airlied@linux.ie, daniel@ffwll.ch X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200205_013812_802163_B9DEE656 X-CRM114-Status: GOOD ( 13.00 ) X-Spam-Score: -7.7 (-------) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-7.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:74a listed in] [list.dnswl.org] -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM white-list -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.0 DKIMWL_WL_MED DKIMwl.org - Medium sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, cychiang@google.com, tzungbi@google.com, dri-devel@lists.freedesktop.org, ck.hu@mediatek.com, linux-mediatek@lists.infradead.org, p.zabel@pengutronix.de, matthias.bgg@gmail.com, dgreid@google.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 1. Provides a callback (i.e. mtk_hdmi_audio_hook_plugged_cb) to hdmi-codec. When ASoC machine driver calls hdmi_codec_set_jack_detect(), the callback will be invoked to save plugged_cb and codec_dev parameters. +---------+ set_jack_ +------------+ plugged_cb +----------+ | machine | ----------> | hdmi-codec | ----------> | mtk-hdmi | +---------+ detect() +------------+ codec_dev +----------+ 2. When there is any jack status changes, mtk-hdmi will call the plugged_cb() to notify hdmi-codec. And then hdmi-codec will call snd_soc_jack_report(). +----------+ plugged_cb +------------+ | mtk-hdmi | ----------> | hdmi-codec | -> snd_soc_jack_report() +----------+ codec_dev +------------+ connector_status Signed-off-by: Tzung-Bi Shih --- drivers/gpu/drm/mediatek/mtk_hdmi.c | 41 +++++++++++++++++++++++++++-- 1 file changed, 39 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c index 23c2b0e8693d..15736ed0a96a 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -169,6 +169,8 @@ struct mtk_hdmi { bool audio_enable; bool powered; bool enabled; + hdmi_codec_plugged_cb plugged_cb; + struct device *codec_dev; }; static inline struct mtk_hdmi *hdmi_ctx_from_bridge(struct drm_bridge *b) @@ -1194,13 +1196,27 @@ static void mtk_hdmi_clk_disable_audio(struct mtk_hdmi *hdmi) clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_SPDIF]); } +static void mtk_hdmi_update_plugged_status(struct mtk_hdmi *hdmi, + enum drm_connector_status status) +{ + if (hdmi->plugged_cb && hdmi->codec_dev) + hdmi->plugged_cb(hdmi->codec_dev, + status == connector_status_connected); +} + static enum drm_connector_status hdmi_conn_detect(struct drm_connector *conn, bool force) { struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn); + enum drm_connector_status status; - return mtk_cec_hpd_high(hdmi->cec_dev) ? - connector_status_connected : connector_status_disconnected; + if (mtk_cec_hpd_high(hdmi->cec_dev)) + status = connector_status_connected; + else + status = connector_status_disconnected; + + mtk_hdmi_update_plugged_status(hdmi, status); + return status; } static void hdmi_conn_destroy(struct drm_connector *conn) @@ -1648,20 +1664,41 @@ static int mtk_hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf, return 0; } +static int mtk_hdmi_audio_hook_plugged_cb(struct device *dev, void *data, + hdmi_codec_plugged_cb fn, + struct device *codec_dev) +{ + struct mtk_hdmi *hdmi = data; + + hdmi->plugged_cb = fn; + hdmi->codec_dev = codec_dev; + + if (mtk_cec_hpd_high(hdmi->cec_dev)) + mtk_hdmi_update_plugged_status( + hdmi, connector_status_connected); + else + mtk_hdmi_update_plugged_status( + hdmi, connector_status_disconnected); + return 0; +} + static const struct hdmi_codec_ops mtk_hdmi_audio_codec_ops = { .hw_params = mtk_hdmi_audio_hw_params, .audio_startup = mtk_hdmi_audio_startup, .audio_shutdown = mtk_hdmi_audio_shutdown, .digital_mute = mtk_hdmi_audio_digital_mute, .get_eld = mtk_hdmi_audio_get_eld, + .hook_plugged_cb = mtk_hdmi_audio_hook_plugged_cb, }; static int mtk_hdmi_register_audio_driver(struct device *dev) { + struct mtk_hdmi *hdmi = dev_get_drvdata(dev); struct hdmi_codec_pdata codec_data = { .ops = &mtk_hdmi_audio_codec_ops, .max_i2s_channels = 2, .i2s = 1, + .data = hdmi, }; struct platform_device *pdev;