From patchwork Mon May 11 01:38:28 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Zhang X-Patchwork-Id: 6372711 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id CDFE99F32B for ; Mon, 11 May 2015 02:51:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BB1C5203F1 for ; Mon, 11 May 2015 02:51:37 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 9C0C2203E9 for ; Mon, 11 May 2015 02:51:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 010A46E15F; Sun, 10 May 2015 19:51:32 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from hqemgate16.nvidia.com (hqemgate16.nvidia.com [216.228.121.65]) by gabe.freedesktop.org (Postfix) with ESMTP id 876FB6E1F1 for ; Sun, 10 May 2015 18:38:44 -0700 (PDT) Received: from hqnvupgp08.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com id ; Sun, 10 May 2015 18:38:40 -0700 Received: from hqemhub02.nvidia.com ([172.20.150.31]) by hqnvupgp08.nvidia.com (PGP Universal service); Sun, 10 May 2015 18:36:29 -0700 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Sun, 10 May 2015 18:36:29 -0700 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by hqemhub02.nvidia.com (172.20.150.31) with Microsoft SMTP Server id 8.3.342.0; Sun, 10 May 2015 18:38:43 -0700 Received: from markz-hp6200.nvidia.com (Not Verified[10.19.224.127]) by hqnvemgw01.nvidia.com with MailMarshal (v7,1,2,5326) id ; Sun, 10 May 2015 18:38:44 -0700 From: Mark Zhang To: thierry.reding@gmail.com Subject: [RFC PATCH 09/12] drm: dsi: Add "enter idle" & "exit idle" dcs functions Date: Mon, 11 May 2015 09:38:28 +0800 Message-ID: <1431308311-4470-10-git-send-email-markz@nvidia.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1431308311-4470-1-git-send-email-markz@nvidia.com> References: <1431308311-4470-1-git-send-email-markz@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 X-Mailman-Approved-At: Sun, 10 May 2015 19:51:31 -0700 Cc: linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, 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 Signed-off-by: Mark Zhang --- drivers/gpu/drm/drm_mipi_dsi.c | 36 ++++++++++++++++++++++++++++++++++++ include/drm/drm_mipi_dsi.h | 2 ++ 2 files changed, 38 insertions(+) diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 2d5ca8eec13a..9bc6ff75eb8f 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -862,6 +862,42 @@ int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format) } EXPORT_SYMBOL(mipi_dsi_dcs_set_pixel_format); +/** + * mipi_dsi_dcs_enter_idle_mode() + * @dsi: DSI peripheral device + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_enter_idle_mode(struct mipi_dsi_device *dsi) +{ + ssize_t err; + + err = mipi_dsi_dcs_write(dsi, MIPI_DCS_ENTER_IDLE_MODE, NULL, 0); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_enter_idle_mode); + +/** + * mipi_dsi_dcs_exit_idle_mode() + * @dsi: DSI peripheral device + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_exit_idle_mode(struct mipi_dsi_device *dsi) +{ + ssize_t err; + + err = mipi_dsi_dcs_write(dsi, MIPI_DCS_EXIT_IDLE_MODE, NULL, 0); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_exit_idle_mode); + static int mipi_dsi_drv_probe(struct device *dev) { struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver); diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index f1d8d0dbb4f1..d949a8ef389f 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -214,6 +214,8 @@ int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi, enum mipi_dsi_dcs_tear_mode mode); int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format); +int mipi_dsi_dcs_enter_idle_mode(struct mipi_dsi_device *dsi); +int mipi_dsi_dcs_exit_idle_mode(struct mipi_dsi_device *dsi); /** * struct mipi_dsi_driver - DSI driver