From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:39568 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751061AbdCMIkp (ORCPT ); Mon, 13 Mar 2017 04:40:45 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Y.C. Chen" , Benjamin Herrenschmidt , Joel Stanley , Dave Airlie Subject: [PATCH 4.4 27/36] drm/ast: Call open_key before enable_mmio in POST code Date: Mon, 13 Mar 2017 16:39:27 +0800 Message-Id: <20170313083354.141500076@linuxfoundation.org> In-Reply-To: <20170313083352.550085638@linuxfoundation.org> References: <20170313083352.550085638@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Y.C. Chen commit 9bb92f51558f2ef5f56c257bdcea0588f31d857e upstream. open_key enables access the registers used by enable_mmio Signed-off-by: Y.C. Chen Signed-off-by: Benjamin Herrenschmidt Acked-by: Joel Stanley Tested-by: Y.C. Chen Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/ast/ast_post.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/ast/ast_post.c +++ b/drivers/gpu/drm/ast/ast_post.c @@ -371,8 +371,8 @@ void ast_post_gpu(struct drm_device *dev pci_write_config_dword(ast->dev->pdev, 0x04, reg); ast_enable_vga(dev); - ast_enable_mmio(dev); ast_open_key(ast); + ast_enable_mmio(dev); ast_set_def_ext_reg(dev); if (ast->chip == AST2300 || ast->chip == AST2400)