From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELtYpxi1Kp4DpJIPD20pUlHExv6Ctu7SolRcv9BcWxOdhdjhBPULWrgrxIAQQI5W3XeSHcKD ARC-Seal: i=1; a=rsa-sha256; t=1520955451; cv=none; d=google.com; s=arc-20160816; b=x6dZ5lJTGAw8IdyC7BIMKUf4PsqL0KJzA0ZgjNSxSljRg31/6jv1+0wqr9xxI2ZKV/ 3K7NsX7lRbJHQJJNb5gpjtbC0G4xyp6cIYXvv2A/LEUmnqYzazIRGPDMCM/1z+csMY4M 7m9tZtqyD8KMI+nI4BG8lS2OIVBrsqSClkUdB19jjd8/PwimeZaFuZOXvgspA6AklDou hXzds+84e239we5MJqXHWjKmT7LYBP++ZF4uZSmpjV37p63e9DDbxivPYJNAqaOp6spv 98+NHDWWAFH+bFLuzZRxWRzjU2Ga/ywaok3ACfBwdctDS90pA6vsN+/jrqSOMk1NaFdf YpqA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=0qYUcqmtVaYRKdoplXsd/YxettsrP4WjA7D+TrM6Ydk=; b=jJx9ubSLPf+EBFDae3Xg3354PMA9ApqEk1H66VdXJzXt6HODpsEU6xX2cu+c75Xrw1 VqbIf0dW22tDRnuUO4JInZG5thBxYTEkMys9ue3K9vidBvjblAdBceuv1rfkoxDaTWCd 2xoZZC/8cgZzo+jh6OPSYm2/Wf821r6RWe3L0J9JCBnpV9uP6xU5BtQzzIn13YzeWlyS fu/BtgwURwU0xo8kw5P4fbLfcLV78mJxJ9zci9nFUbQq92qJGIh63TfN7jD3j4HOvLjv iJMqzXG3Ebs4Z7kPFiyN+tg+a1pxxniyp0M0Tr75+liRHRu7zjozSwU62zl8pKoibn8o cZMg== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.71.90 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.71.90 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Dhinakaran Pandiyan Subject: [PATCH 4.14 054/140] drm/i915: Disable DC states around GMBUS on GLK Date: Tue, 13 Mar 2018 16:24:17 +0100 Message-Id: <20180313152501.911883515@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180313152458.201155692@linuxfoundation.org> References: <20180313152458.201155692@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1594836803674032941?= X-GMAIL-MSGID: =?utf-8?q?1594837383323429268?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ville Syrjälä commit 156961ae7bdf6feb72778e8da83d321b273343fd upstream. Prevent the DMC from destroying GMBUS transfers on GLK. GMBUS lives in PG1 so DC off is all we need. Cc: stable@vger.kernel.org Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20171208213739.16388-1-ville.syrjala@linux.intel.com Reviewed-by: Dhinakaran Pandiyan Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/intel_runtime_pm.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -1844,6 +1844,7 @@ void intel_display_power_put(struct drm_ CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \ BIT_ULL(POWER_DOMAIN_MODESET) | \ BIT_ULL(POWER_DOMAIN_AUX_A) | \ + BIT_ULL(POWER_DOMAIN_GMBUS) | \ BIT_ULL(POWER_DOMAIN_INIT)) static const struct i915_power_well_ops i9xx_always_on_power_well_ops = {