From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753349AbeEOM4L (ORCPT ); Tue, 15 May 2018 08:56:11 -0400 Received: from aer-iport-3.cisco.com ([173.38.203.53]:26446 "EHLO aer-iport-3.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753117AbeEOM4J (ORCPT ); Tue, 15 May 2018 08:56:09 -0400 X-IronPort-AV: E=Sophos;i="5.49,403,1520899200"; d="scan'208";a="3794164" Subject: Re: [PATCH 2/5] drm/i915: hdmi: add CEC notifier to intel_hdmi To: Neil Armstrong , airlied@linux.ie, hans.verkuil@cisco.com, lee.jones@linaro.org, olof@lixom.net, seanpaul@google.com Cc: sadolfsson@google.com, felixe@google.com, bleung@google.com, darekm@google.com, marcheu@chromium.org, fparent@baylibre.com, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org References: <1526388421-18808-1-git-send-email-narmstrong@baylibre.com> <1526388421-18808-3-git-send-email-narmstrong@baylibre.com> From: Hans Verkuil Message-ID: Date: Tue, 15 May 2018 14:56:06 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: <1526388421-18808-3-git-send-email-narmstrong@baylibre.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Authenticated-User: hansverk Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/15/18 14:46, Neil Armstrong wrote: > This patchs adds the cec_notifier feature to the intel_hdmi part > of the i915 DRM driver. It uses the HDMI DRM connector name to differentiate > between each HDMI ports. > The changes will allow the i915 HDMI code to notify EDID and HPD changes > to an eventual CEC adapter. You haven't figured yet out where to place the cec_notifier_put() call? Or did you forget? Regards, Hans > > Signed-off-by: Neil Armstrong > --- > drivers/gpu/drm/i915/Kconfig | 1 + > drivers/gpu/drm/i915/intel_drv.h | 2 ++ > drivers/gpu/drm/i915/intel_hdmi.c | 10 ++++++++++ > 3 files changed, 13 insertions(+) > > diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig > index dfd9588..2d65d56 100644 > --- a/drivers/gpu/drm/i915/Kconfig > +++ b/drivers/gpu/drm/i915/Kconfig > @@ -23,6 +23,7 @@ config DRM_I915 > select SYNC_FILE > select IOSF_MBI > select CRC32 > + select CEC_CORE if CEC_NOTIFIER > help > Choose this option if you have a system that has "Intel Graphics > Media Accelerator" or "HD Graphics" integrated graphics, > diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h > index d436858..b50e51b 100644 > --- a/drivers/gpu/drm/i915/intel_drv.h > +++ b/drivers/gpu/drm/i915/intel_drv.h > @@ -39,6 +39,7 @@ > #include > #include > #include > +#include > > /** > * __wait_for - magic wait macro > @@ -1001,6 +1002,7 @@ struct intel_hdmi { > bool has_audio; > bool rgb_quant_range_selectable; > struct intel_connector *attached_connector; > + struct cec_notifier *notifier; > }; > > struct intel_dp_mst_encoder; > diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c > index 1baef4a..9b94d72 100644 > --- a/drivers/gpu/drm/i915/intel_hdmi.c > +++ b/drivers/gpu/drm/i915/intel_hdmi.c > @@ -1868,6 +1868,8 @@ intel_hdmi_set_edid(struct drm_connector *connector) > connected = true; > } > > + cec_notifier_set_phys_addr_from_edid(intel_hdmi->notifier, edid); > + > return connected; > } > > @@ -1876,6 +1878,7 @@ intel_hdmi_detect(struct drm_connector *connector, bool force) > { > enum drm_connector_status status; > struct drm_i915_private *dev_priv = to_i915(connector->dev); > + struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); > > DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", > connector->base.id, connector->name); > @@ -1891,6 +1894,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool force) > > intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS); > > + if (status != connector_status_connected) > + cec_notifier_phys_addr_invalidate(intel_hdmi->notifier); > + > return status; > } > > @@ -2358,6 +2364,10 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, > u32 temp = I915_READ(PEG_BAND_GAP_DATA); > I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd); > } > + > + intel_hdmi->notifier = cec_notifier_get_conn(dev->dev, connector->name); > + if (!intel_hdmi->notifier) > + DRM_DEBUG_KMS("CEC notifier get failed\n"); > } > > void intel_hdmi_init(struct drm_i915_private *dev_priv, >