From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELv+Tn6FWF6UvInfSbALRcpdt4WJT/5X7dvPRdZpl8mfKC4hRbmnRSosKUFHrEEQP3zFwoIf ARC-Seal: i=1; a=rsa-sha256; t=1520954898; cv=none; d=google.com; s=arc-20160816; b=Lb3rAhYjOunqVpI6LhW185QDh1opvz/83Emp2dMYqCCIkUJtXNocVgpqPcev4bDT3W cPLVT9/m7Oi3B4Q/dMFrwvCsfsnRVNwrd5eoJkAOS9clLRKkJIySe5fwSxfGT8xe9+Nz 2u4CdwbFiU8BdkG6BhcLAkoUz2oTeP12FV3euDA5Rwwjdw/YFK61M4cogjTJJBL3A7qJ 0CKuxG6mMyH5crx1CLIj4+bMrTUE5UcNMk9hhMkq+tnuCyyeleMiZrhkKemf4T5OGD6q JSA0AexQXH8cndDkHZVCIwUrUapnnD6Cq9skJqTdQ4VXHGTHUYlmwyO4+LIT+h5ybIJK YNxQ== 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=TN9mL5w4OswSh8MQ5JpNFRl6tTQ6Le56j/EHn3jiO20=; b=F3ed04a3j5GONJzbZ0Lpb36qGZx8OSZHcK0tHwPqMSnTaooYxChCjJohXQWXFFoErb 7GPdfRLZXINdpQfS4CVeVwQ4KWLWSR/FoQ1qRznrjy/Tf3mB35mUYav8enEDp9EgDopp 5mk/WrZBh46DTQw1jzwPI3cPxKHD2tk+Aw2jVhJE/bmmjncnaPIATeqY4kwq7qG1kz12 gbfS/pJPqdf3/rTAijYP4U3xJnj0/KmNSubz9Ao6jca9cqAU5QYUaAMy8jQA7xu6SSJw BmS5VmdCUotGslst+iTCw3W0EUDhRvCzNi7Bs4c7j2aw5bx3LTd/KQuXYNA1NLup2zeR GtWw== 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 4.15 013/146] drm/i915: Disable DC states around GMBUS on GLK Date: Tue, 13 Mar 2018 16:23:00 +0100 Message-Id: <20180313152321.596554483@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180313152320.439085687@linuxfoundation.org> References: <20180313152320.439085687@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?1594836803674032941?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.15-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 = {