From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,FROM_STARTS_WITH_NUMS, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 16CB7C2D0F7 for ; Tue, 12 May 2020 20:53:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E720320753 for ; Tue, 12 May 2020 20:53:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Uz0A7RWo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731170AbgELUxT (ORCPT ); Tue, 12 May 2020 16:53:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41418 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725938AbgELUxS (ORCPT ); Tue, 12 May 2020 16:53:18 -0400 Received: from mail-qk1-x742.google.com (mail-qk1-x742.google.com [IPv6:2607:f8b0:4864:20::742]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 756DEC061A0C; Tue, 12 May 2020 13:53:18 -0700 (PDT) Received: by mail-qk1-x742.google.com with SMTP id g185so15161708qke.7; Tue, 12 May 2020 13:53:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=PwIASv/vhd/qRGtzr/TQ79wPBnNWX1XktPXzdN45PYQ=; b=Uz0A7RWoZ1quDAqVxJAzo+fnpEPgA00dcQ8c0v7lWV3lxQ8kWiT6sT6jNRnreRn9O0 kkibGiJXw3E+hvr6tBfeBWjBIYr2SyEprqLPu5ju2upXf/JbkCXt/RRAUi5umt0hImC8 RftDgpDFclwPr9Hb7NUsMXR2JHWX0Br0yts0sd0f3ZGLCyuiZRDWfnCdTAdKXL9euUJj TRrrnWRmmv0fEYOjb9Qey3lpywCXTSJkCUVvXkSEM+a1EoIMqPzFWg5QVNVkCthuOruW zmynbk8bmUYiUuHlwPJxVPJxIwqWzOikRWl6wtnsAERS427pWk5AmVGyEOcgYE2hPQE4 IUnw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=PwIASv/vhd/qRGtzr/TQ79wPBnNWX1XktPXzdN45PYQ=; b=HI4nzgjIcAskWUSi25y/dLPvr5m0KeM3TXdjGx7cM6lYdKEAziVUDuso7PyFjUSzcq QAEedBsE4uQqWsN3mnpzg9x8xK404s5f16CtP8fYIz0ZKC7iRw0JoGhWShmjOG/2LJQQ zqpU90pV9bG6ekb8LK4Je9kblcAzZmJlkgizkKwO0Kj4kws65bfIVBPdJ+xq0pIrTKXh W3PJDh2lW+w8KAqFksL/w4BMlyTwPV5XGyxQp89ghgKCmaCEMFblAIYa/d3rnk/mjTFC 6D3B/rU4uB2AVT9keiA2hBdu45xX+eqWkH6oRjiEmOakbjWnxlyhvAPiN0ad3N5Ocn+3 Jblw== X-Gm-Message-State: AOAM532cVza6U6UJ+jmZTbgrHA/39YiVGTVwRGcb0WwqGMzLSccvKryh GMwTc2PxYQqHyG3JMYM3kXlnOnVc2JC6eg== X-Google-Smtp-Source: ABdhPJy7cc7mfQY0TzVYXpHv6JOuNU3+msIJpUP//ezvdJM4xXgs7lmdlDWrQyj3wI5VtHWN4sURjQ== X-Received: by 2002:a37:a3d6:: with SMTP id m205mr4731164qke.241.1589316797287; Tue, 12 May 2020 13:53:17 -0700 (PDT) Received: from sca.dev ([201.17.110.164]) by smtp.gmail.com with ESMTPSA id h6sm9503374qkf.61.2020.05.12.13.53.15 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 12 May 2020 13:53:16 -0700 (PDT) From: Rodrigo Rolim Mendes de Alencar <455.rodrigo.alencar@gmail.com> X-Google-Original-From: Rodrigo Rolim Mendes de Alencar To: linux-fbdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, maxime.ripard@free-electrons.com, alencar.fmce@imbel.gov.br, Rodrigo Alencar <455.rodrigo.alencar@gmail.com> Subject: [PATCH 2/3] video: fbdev: ssd1307fb: Support to pixel inversion Date: Tue, 12 May 2020 17:52:48 -0300 Message-Id: <1589316769-13277-2-git-send-email-alencar.fmce@imbel.gov.br> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1589316769-13277-1-git-send-email-alencar.fmce@imbel.gov.br> References: <1589316769-13277-1-git-send-email-alencar.fmce@imbel.gov.br> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pixel inversion in hardware is performed by issuing the command 0xa7. This patch adds a boolean property to control color inversion. Signed-off-by: Rodrigo Alencar <455.rodrigo.alencar@gmail.com> --- .../devicetree/bindings/display/ssd1307fb.txt | 1 + drivers/video/fbdev/ssd1307fb.c | 11 ++++++++++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/display/ssd1307fb.txt b/Documentation/devicetree/bindings/display/ssd1307fb.txt index 74a7b228bcef..3076b71ede68 100644 --- a/Documentation/devicetree/bindings/display/ssd1307fb.txt +++ b/Documentation/devicetree/bindings/display/ssd1307fb.txt @@ -22,6 +22,7 @@ Optional properties: - solomon,com-seq: Display uses sequential COM pin configuration - solomon,com-lrremap: Display uses left-right COM pin remap - solomon,com-invdir: Display uses inverted COM pin scan direction + - solomon,color-inv: Set Inverse display mode (invert pixel color) - solomon,com-offset: Number of the COM pin wired to the first display line - solomon,col-offset: Offset of columns (SEG) that the screen is mapped to. - solomon,prechargep1: Length of deselect period (phase 1) in clock cycles. diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c index ac88bbe174b6..748c21c0567b 100644 --- a/drivers/video/fbdev/ssd1307fb.c +++ b/drivers/video/fbdev/ssd1307fb.c @@ -31,8 +31,9 @@ #define SSD1307FB_SET_LOOKUP_TABLE 0x91 #define SSD1307FB_CHARGE_PUMP 0x8d #define SSD1307FB_SEG_REMAP_ON 0xa1 -#define SSD1307FB_DISPLAY_OFF 0xae +#define SSD1307FB_DISPLAY_NORMAL 0xa6 #define SSD1307FB_SET_MULTIPLEX_RATIO 0xa8 +#define SSD1307FB_DISPLAY_OFF 0xae #define SSD1307FB_DISPLAY_ON 0xaf #define SSD1307FB_START_PAGE_ADDRESS 0xb0 #define SSD1307FB_SET_DISPLAY_OFFSET 0xd3 @@ -62,6 +63,7 @@ struct ssd1307fb_deviceinfo { struct ssd1307fb_par { unsigned area_color_enable : 1; unsigned com_invdir : 1; + unsigned color_inv : 1; unsigned com_lrremap : 1; unsigned com_seq : 1; unsigned lookup_table_set : 1; @@ -492,6 +494,12 @@ static int ssd1307fb_init(struct ssd1307fb_par *par) if (ret < 0) return ret; + /* Set normal or inverse */ + ret = ssd1307fb_write_cmd(par->client, + SSD1307FB_DISPLAY_NORMAL | (par->color_inv & 0x1)); + if (ret < 0) + return ret; + /* Clear the screen */ ssd1307fb_update_display(par); @@ -666,6 +674,7 @@ static int ssd1307fb_probe(struct i2c_client *client, par->com_seq = of_property_read_bool(node, "solomon,com-seq"); par->com_lrremap = of_property_read_bool(node, "solomon,com-lrremap"); par->com_invdir = of_property_read_bool(node, "solomon,com-invdir"); + par->color_inv = of_property_read_bool(node, "solomon,color-inv"); par->area_color_enable = of_property_read_bool(node, "solomon,area-color-enable"); par->low_power = of_property_read_bool(node, "solomon,low-power"); -- 2.23.0.rc1