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Received: from vps.xff.cz ([195.181.215.36]) by casper.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jocfD-0003ZQ-TM for linux-arm-kernel@lists.infradead.org; Fri, 26 Jun 2020 00:56:27 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1593132968; bh=wLBTfvkPXA92DN0aPa1jL4zdt1fxD/3SPQM5mOVPwyY=; h=From:To:Cc:Subject:Date:References:From; b=N5xMbVdHFKknjrdhPvC1BjB/SvOiGaLTR4EHg08ifBzEVjzR69mq2shPd/w1iLpiO wJB/7mrATY4n9vjxHgjwPtL1lTSZb6hJ8J0aO6JDi1XY9WwU/lTbz8EHr6D8MtFHFv weI+7Vz9h5WiixgyAaXayROEQW+UndJXFLJPqZyY= From: Ondrej Jirman To: linux-sunxi@googlegroups.com, Thierry Reding , Sam Ravnborg , David Airlie , Daniel Vetter , =?utf-8?q?Guido_G=C3=BCnther?= , Purism Kernel Team , Rob Herring , Maxime Ripard , Chen-Yu Tsai , Linus Walleij , Icenowy Zheng Subject: [PATCH v5 10/13] drm/panel: st7703: Enter sleep after display off Date: Fri, 26 Jun 2020 02:55:58 +0200 Message-Id: <20200626005601.241022-11-megous@megous.com> In-Reply-To: <20200626005601.241022-1-megous@megous.com> References: <20200626005601.241022-1-megous@megous.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200626_015620_416914_D680DF42 X-CRM114-Status: GOOD ( 11.56 ) X-Spam-Score: -2.1 (--) X-Spam-Report: SpamAssassin version 3.4.4 on casper.infradead.org summary: Content analysis details: (-2.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ondrej Jirman , devicetree@vger.kernel.org, Samuel Holland , Bhushan Shah , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Luca Weiss , Martijn Braam , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The datasheet suggests to issue sleep in after display off as a part of the panel's shutdown sequence. Signed-off-by: Ondrej Jirman Reviewed-by: Linus Walleij --- drivers/gpu/drm/panel/panel-sitronix-st7703.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c index 33611419059a..e771281eb547 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c @@ -394,8 +394,19 @@ static int st7703_disable(struct drm_panel *panel) { struct st7703 *ctx = panel_to_st7703(panel); struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + int ret; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) + DRM_DEV_ERROR(ctx->dev, + "Failed to turn off the display: %d\n", ret); - return mipi_dsi_dcs_set_display_off(dsi); + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) + DRM_DEV_ERROR(ctx->dev, + "Failed to enter sleep mode: %d\n", ret); + + return 0; } static int st7703_unprepare(struct drm_panel *panel)