From patchwork Tue Jun 30 21:27:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chrisanthus, Anitha" X-Patchwork-Id: 11635077 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BE6F2161F for ; Tue, 30 Jun 2020 21:31:13 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A6E702065D for ; Tue, 30 Jun 2020 21:31:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A6E702065D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 140536E505; Tue, 30 Jun 2020 21:30:06 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id EB2BC6E34D; Tue, 30 Jun 2020 21:28:53 +0000 (UTC) IronPort-SDR: q2nnG+bDDy6NziAkrZKDeEjKXca4NwM0EJoBN3nJu05VqpMTSfMhyfJiF1ioCHhTqPJgms/qdG MvQCzE4xhyfw== X-IronPort-AV: E=McAfee;i="6000,8403,9668"; a="133846935" X-IronPort-AV: E=Sophos;i="5.75,298,1589266800"; d="scan'208";a="133846935" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2020 14:28:53 -0700 IronPort-SDR: GjuOyMESSaRdAQMMLdnOGgQGmsdfU47eFA2lJp52AVqDrMtneI2B9ZWpACSEJUKrjepZzoT8Ms R7nQLoXTTJuQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,298,1589266800"; d="scan'208";a="481066817" Received: from hdwiyono-mobl.amr.corp.intel.com (HELO achrisan-DESK2.amr.corp.intel.com) ([10.254.176.225]) by fmsmga006.fm.intel.com with ESMTP; 30 Jun 2020 14:28:53 -0700 From: Anitha Chrisanthus To: dri-devel@lists.freedesktop.org, anitha.chrisanthus@intel.com, bob.j.paauwe@intel.com, edmund.j.dea@intel.com Date: Tue, 30 Jun 2020 14:27:59 -0700 Message-Id: <1593552491-23698-48-git-send-email-anitha.chrisanthus@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1593552491-23698-1-git-send-email-anitha.chrisanthus@intel.com> References: <1593552491-23698-1-git-send-email-anitha.chrisanthus@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] =?utf-8?q?=5BPATCH_47/59=5D_drm/kmb=3A_Don=E2=80=99t_in?= =?utf-8?q?advertantly_disable_LCD_controller?= X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: daniel.vetter@intel.com, intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" setbits instead of write dword for LCD_CONTROL register this was inadvertantly disabling the LCD controller. Signed-off-by: Anitha Chrisanthus Reviewed-by: Bob Paauwe --- drivers/gpu/drm/kmb/kmb_plane.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/kmb/kmb_plane.c b/drivers/gpu/drm/kmb/kmb_plane.c index 1990e8c..d87a3a2 100644 --- a/drivers/gpu/drm/kmb/kmb_plane.c +++ b/drivers/gpu/drm/kmb/kmb_plane.c @@ -178,6 +178,9 @@ static void kmb_plane_atomic_disable(struct drm_plane *plane, kmb_clr_bitmask_lcd(dev_p, LCD_LAYERn_DMA_CFG(plane_id), LCD_DMA_LAYER_ENABLE); kmb_clr_bitmask_lcd(dev_p, LCD_CONTROL, ctrl); + DRM_INFO("%s : %d lcd_ctrl = 0x%x lcd_int_enable=0x%x\n", + __func__, __LINE__, kmb_read_lcd(dev_p, LCD_CONTROL), + kmb_read_lcd(dev_p, LCD_INT_ENABLE)); } @@ -476,7 +479,7 @@ static void kmb_plane_atomic_update(struct drm_plane *plane, */ ctrl |= LCD_CTRL_VHSYNC_IDLE_LVL; - kmb_write_lcd(dev_p, LCD_CONTROL, ctrl); + kmb_set_bitmask_lcd(dev_p, LCD_CONTROL, ctrl); /* FIXME no doc on how to set output format,these values are taken * from the Myriadx tests