From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: [PATCH 10/15] drm/dsi: Implement DCS get_power_mode command Date: Mon, 13 Oct 2014 12:16:30 +0200 Message-ID: <1413195395-3355-10-git-send-email-thierry.reding@gmail.com> References: <1413195395-3355-1-git-send-email-thierry.reding@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wi0-f178.google.com (mail-wi0-f178.google.com [209.85.212.178]) by gabe.freedesktop.org (Postfix) with ESMTP id 4337889F19 for ; Mon, 13 Oct 2014 03:16:54 -0700 (PDT) Received: by mail-wi0-f178.google.com with SMTP id h11so3256163wiw.11 for ; Mon, 13 Oct 2014 03:16:53 -0700 (PDT) In-Reply-To: <1413195395-3355-1-git-send-email-thierry.reding@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org Cc: Andrzej Hajda List-Id: dri-devel@lists.freedesktop.org From: Thierry Reding Provide a small convenience wrapper that transmits a DCS get_power_mode command. A set of bitmasks for the mode bits is also provided. Signed-off-by: Thierry Reding --- drivers/gpu/drm/drm_mipi_dsi.c | 21 +++++++++++++++++++++ include/drm/drm_mipi_dsi.h | 7 +++++++ 2 files changed, 28 insertions(+) diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 60bd68b520ae..4e016a6a9fc3 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -553,6 +553,27 @@ int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi) EXPORT_SYMBOL(mipi_dsi_dcs_soft_reset); /** + * mipi_dsi_dcs_get_power_mode() - query the display module's current power + * mode + * @dsi: DSI peripheral device + * @mode: return location for the current power mode + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode) +{ + ssize_t err; + + err = mipi_dsi_dcs_read(dsi, MIPI_DCS_GET_POWER_MODE, mode, + sizeof(*mode)); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_get_power_mode); + +/** * mipi_dsi_dcs_enter_sleep_mode() - disable all unnecessary blocks inside the * display module except interface communication * @dsi: DSI peripheral device diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index 2afbd5853f78..b659b99ac890 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -164,6 +164,12 @@ enum mipi_dsi_dcs_tear_mode { MIPI_DSI_DCS_TEAR_MODE_VHBLANK, }; +#define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2) +#define MIPI_DSI_DCS_POWER_MODE_NORMAL (1 << 3) +#define MIPI_DSI_DCS_POWER_MODE_SLEEP (1 << 4) +#define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5) +#define MIPI_DSI_DCS_POWER_MODE_IDLE (1 << 6) + ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi, const void *data, size_t len); ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd, @@ -172,6 +178,7 @@ ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data, size_t len); int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi); +int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode); int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi); -- 2.1.2