From patchwork Tue May 20 10:17:08 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arun Kumar K X-Patchwork-Id: 4208741 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id C53C5BEEAB for ; Tue, 20 May 2014 10:17:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DB9A2201BF for ; Tue, 20 May 2014 10:17:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D3EE820131 for ; Tue, 20 May 2014 10:17:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750706AbaETKRY (ORCPT ); Tue, 20 May 2014 06:17:24 -0400 Received: from mail-pd0-f173.google.com ([209.85.192.173]:46615 "EHLO mail-pd0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751868AbaETKRX (ORCPT ); Tue, 20 May 2014 06:17:23 -0400 Received: by mail-pd0-f173.google.com with SMTP id v10so188511pde.32 for ; Tue, 20 May 2014 03:17:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=eQrk6inlBW32j6fbg4NTE5CM5kwoEZkEGyNK3NoqQsk=; b=gsT1dfvCD8xJzwV1+P5Mznk6igYtOfo5h2obG/0ptm9yk279vjg7JgPl4QV36MxUDp tAhOVYpIrW8/PEy997B1KGTz9pa5hiiQeX9molmCC+gRatLOQPjzh0KakH6P/uew+H7Q op+N8osNwjR5og/N7/o+5ttkGbIvjBfjBcs7tElWytLn72ecKTj/8Ihv+2Kh557WjhQU Y2nc7xwY8DGVWd0gw+jwq4UEVW5NK/Tyidc+l7YD+9a2p/KBgE/lMvAoqEaY52Db+i45 ty9qSOH1OfGbPtBgzLonyQxcCKHEgJNuNHhLGCgpYxC3ar3jOLsglEy5MKlXko+fmdNH OeXA== X-Received: by 10.69.25.105 with SMTP id ip9mr5813359pbd.145.1400581042517; Tue, 20 May 2014 03:17:22 -0700 (PDT) Received: from localhost.localdomain ([14.140.216.146]) by mx.google.com with ESMTPSA id ry10sm88016931pab.38.2014.05.20.03.17.19 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 20 May 2014 03:17:21 -0700 (PDT) From: Arun Kumar K To: linux-media@vger.kernel.org, linux-samsung-soc@vger.kernel.org Cc: k.debski@samsung.com, s.nawrocki@samsung.com, posciak@chromium.org, avnd.kiran@samsung.com, arunkk.samsung@gmail.com Subject: [PATCH 2/3] [media] s5p-mfc: Support multiple firmware sub-versions Date: Tue, 20 May 2014 15:47:08 +0530 Message-Id: <1400581029-3475-3-git-send-email-arun.kk@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1400581029-3475-1-git-send-email-arun.kk@samsung.com> References: <1400581029-3475-1-git-send-email-arun.kk@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP For MFC firmwares, improved versions with bug fixes and feature additions are released keeping the firmware version including major and minor number same. The issue came with the release of a new MFCv6 firmware with an interface change. This patch adds the support of accepting multiple firmware binaries for every version with the driver trying to load firmwares starting from latest. This ensures full backward compatibility regardless of which firmware version and kernel version is used. Signed-off-by: Arun Kumar K --- drivers/media/platform/s5p-mfc/s5p_mfc.c | 9 +++++---- drivers/media/platform/s5p-mfc/s5p_mfc_common.h | 11 ++++++++++- drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c | 15 ++++++++++++--- 3 files changed, 27 insertions(+), 8 deletions(-) diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 8da4c23..514e7ec 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -1343,7 +1343,7 @@ static struct s5p_mfc_variant mfc_drvdata_v5 = { .port_num = MFC_NUM_PORTS, .buf_size = &buf_size_v5, .buf_align = &mfc_buf_align_v5, - .fw_name = "s5p-mfc.fw", + .fw_name[0] = "s5p-mfc.fw", }; struct s5p_mfc_buf_size_v6 mfc_buf_size_v6 = { @@ -1370,7 +1370,8 @@ static struct s5p_mfc_variant mfc_drvdata_v6 = { .port_num = MFC_NUM_PORTS_V6, .buf_size = &buf_size_v6, .buf_align = &mfc_buf_align_v6, - .fw_name = "s5p-mfc-v6.fw", + .fw_name[0] = "s5p-mfc-v6.fw", + .fw_name[1] = "s5p-mfc-v6-v2.fw", }; struct s5p_mfc_buf_size_v6 mfc_buf_size_v7 = { @@ -1397,7 +1398,7 @@ static struct s5p_mfc_variant mfc_drvdata_v7 = { .port_num = MFC_NUM_PORTS_V7, .buf_size = &buf_size_v7, .buf_align = &mfc_buf_align_v7, - .fw_name = "s5p-mfc-v7.fw", + .fw_name[0] = "s5p-mfc-v7.fw", }; struct s5p_mfc_buf_size_v6 mfc_buf_size_v8 = { @@ -1424,7 +1425,7 @@ static struct s5p_mfc_variant mfc_drvdata_v8 = { .port_num = MFC_NUM_PORTS_V8, .buf_size = &buf_size_v8, .buf_align = &mfc_buf_align_v8, - .fw_name = "s5p-mfc-v8.fw", + .fw_name[0] = "s5p-mfc-v8.fw", }; static struct platform_device_id mfc_driver_ids[] = { diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h index 89681c3..de60185 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h @@ -38,6 +38,8 @@ #define MFC_BANK2_ALIGN_ORDER 13 #define MFC_BASE_ALIGN_ORDER 17 +#define MFC_FW_MAX_VERSIONS 2 + #include static inline dma_addr_t s5p_mfc_mem_cookie(void *a, void *b) @@ -163,6 +165,11 @@ enum s5p_mfc_decode_arg { MFC_DEC_RES_CHANGE, }; +enum s5p_mfc_fw_ver { + MFC_FW_V1, + MFC_FW_V2, +}; + #define MFC_BUF_FLAG_USED (1 << 0) #define MFC_BUF_FLAG_EOS (1 << 1) @@ -225,7 +232,7 @@ struct s5p_mfc_variant { u32 version_bit; struct s5p_mfc_buf_size *buf_size; struct s5p_mfc_buf_align *buf_align; - char *fw_name; + char *fw_name[MFC_FW_MAX_VERSIONS]; }; /** @@ -287,6 +294,7 @@ struct s5p_mfc_priv_buf { * @warn_start: hardware error code from which warnings start * @mfc_ops: ops structure holding HW operation function pointers * @mfc_cmds: cmd structure holding HW commands function pointers + * @fw_ver: loaded firmware sub-version * */ struct s5p_mfc_dev { @@ -331,6 +339,7 @@ struct s5p_mfc_dev { struct s5p_mfc_hw_ops *mfc_ops; struct s5p_mfc_hw_cmds *mfc_cmds; const struct s5p_mfc_regs *mfc_regs; + enum s5p_mfc_fw_ver fw_ver; }; /** diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c index c97c7c8..7aabcdb 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c @@ -78,14 +78,23 @@ int s5p_mfc_alloc_firmware(struct s5p_mfc_dev *dev) int s5p_mfc_load_firmware(struct s5p_mfc_dev *dev) { struct firmware *fw_blob; - int err; + int err = -EINVAL, i; /* Firmare has to be present as a separate file or compiled * into kernel. */ mfc_debug_enter(); - err = request_firmware((const struct firmware **)&fw_blob, - dev->variant->fw_name, dev->v4l2_dev.dev); + for (i = MFC_FW_MAX_VERSIONS - 1; i >= 0; i--) { + if (!dev->variant->fw_name[i]) + continue; + err = request_firmware((const struct firmware **)&fw_blob, + dev->variant->fw_name[i], dev->v4l2_dev.dev); + if (!err) { + dev->fw_ver = (enum s5p_mfc_fw_ver) i; + break; + } + } + if (err != 0) { mfc_err("Firmware is not present in the /lib/firmware directory nor compiled in kernel\n"); return -EINVAL;