From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dhinakaran Pandiyan Subject: [PATCH 3/6] drm/psr: Fix missed entry in PSR setup time table. Date: Fri, 11 May 2018 12:51:42 -0700 Message-ID: <20180511195145.3829-3-dhinakaran.pandiyan@intel.com> References: <20180511195145.3829-1-dhinakaran.pandiyan@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20180511195145.3829-1-dhinakaran.pandiyan@intel.com> Sender: stable-owner@vger.kernel.org To: intel-gfx@lists.freedesktop.org Cc: Dhinakaran Pandiyan , stable@vger.kernel.org, =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Jose Roberto de Souza , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org Entry corresponding to 220 us setup time was missing. I am not aware of any specific bug this fixes, but this could potentially result in enabling PSR on a panel with a higher setup time requirement than supported by the hardware. I verified the value is present in eDP spec versions 1.3, 1.4 and 1.4a. Fixes: 6608804b3d7f ("drm/dp: Add drm_dp_psr_setup_time()") Cc: stable@vger.kernel.org Cc: Ville Syrjälä Cc: Jose Roberto de Souza Cc: dri-devel@lists.freedesktop.org Signed-off-by: Dhinakaran Pandiyan --- drivers/gpu/drm/drm_dp_helper.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index 36c7609a4bd5..a7ba602a43a8 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -1159,6 +1159,7 @@ int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]) static const u16 psr_setup_time_us[] = { PSR_SETUP_TIME(330), PSR_SETUP_TIME(275), + PSR_SETUP_TIME(220), PSR_SETUP_TIME(165), PSR_SETUP_TIME(110), PSR_SETUP_TIME(55), -- 2.14.1