From patchwork Fri Apr 5 16:57:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuguo Pei X-Patchwork-Id: 786333 Received: from mail-pf1-f182.google.com (mail-pf1-f182.google.com [209.85.210.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EF06917108E for ; Fri, 5 Apr 2024 16:58:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712336286; cv=none; b=JzwwJx/9piea0/vRXq2irkn41gVNUY4hlPgZu9EwCCbBp0MkRivV/3ecBjrlz7picsqEf3TkBXXBGbb6e0LEs0myKt+y/pvoIvi3hd0e3ViYaKCMjd+lEKXXEZr2X9retyP+vFHu8Na2qu7hHZCiaOADam7YqFN0AHTLvANGP0Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712336286; c=relaxed/simple; bh=5AW1eKgNf7MUu4dM7zRPWY+xw2bFTvlrZtGPjFMFryk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Wq/QIOCKU5fr/+KMW3UTFCzZwjEcUfTdRIRsRUY32Sa8fzWvmGNpqGqrT9hbRCxcPESpWUXiTaET91LRLHKl3eQC6ySybEJ3a5TUNQ7HGrxaUuIVNR8eiQGkcjawHyBNkklDW5lbsuylie2ZpSeeUuNl3geMXoi7JgPGl1b9nSM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ZdGD97Az; arc=none smtp.client-ip=209.85.210.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZdGD97Az" Received: by mail-pf1-f182.google.com with SMTP id d2e1a72fcca58-6ecf406551aso1566925b3a.2 for ; Fri, 05 Apr 2024 09:58:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1712336284; x=1712941084; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=VxOrpUcgWV1BIbN70ZBNYzAG96ZmcBy16Bx9JpTxO+Y=; b=ZdGD97AzgpYGmeDMhyvJLmYFU81/b5Esk7PtWUCXapuQp4NHZywdE6hF5EjuLPVQ3+ kF/JJjC0MkZ43sbv7UUtxeo03i/zCK68iW0OQDiZgmPmDLY8S7HPOi/lIxYvu4EFokub PXRilZyikkA7gfJGWDN1+uC9QL1sabQz+Wjv0ak8taECpSdjZcVVBn/5nMMrutGJ0Tjo 2HZqVRVFEeDeaE2Q9fbWDxgF618E7BD7nWOPAAZLqKTmdkSVmrFf2mK+TYWmVLcdOtcp KHuotfO3O6tVzO1f0XMzP5FSRGmPw4ZB0WImnfB5Y/y8zw0eLTUIDvtDVoWsouWyc8Xx xzJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712336284; x=1712941084; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=VxOrpUcgWV1BIbN70ZBNYzAG96ZmcBy16Bx9JpTxO+Y=; b=dpTwQbUC1tO+bHGyuF8g74qFzeFT2TJ2Gi9Cfk5BXVlRJsyPM6eteva0HJIKrVoaMk wwTHLfDKQ6AVSnuGX6IZSC+FTJquPjVU6ycxvlIXp1WHIdt5vnKEbXmBvaNSSGTFVTe9 0uZ2uvmU+XtWF3OuYoad6cEFJsJgyaUK9E/eAQ7fjF5cUkWocArx2mb9+G3p7imZlYmS iW7JHRbzCtVQiQqWXbDxH0JGQ55CnoSkS8A6qcKBwW/EBR2E3qwBAbW//ES894IuaD3x e+X112Hmjsvxw6EE1wtPY5DuUbLGu/FkvzA0Z5D1aegxDG8ybVQrLag7PuAZyOZjBIun 3IuQ== X-Gm-Message-State: AOJu0YzWOEJxIaPeqwKxZkGbqdMrvtN7wNITBBXZgTT3aTlhX3JLlijd aEDdr6AgMytvhDNw850K63K2AMwutQ+xGJzGN9UVLgUz1A3pvKwOa9Ud2ENDdyST5kI95Us= X-Google-Smtp-Source: AGHT+IF8+QcgSzXuJgKfFeVtRFmbVoLvx0pIjuAHQZQ5xpIO1ad1rxcl4fMvBNa0DNG870OGXhAphg== X-Received: by 2002:a05:6a00:6508:b0:6ec:d950:fd59 with SMTP id hc8-20020a056a00650800b006ecd950fd59mr1796570pfb.29.1712336283914; Fri, 05 Apr 2024 09:58:03 -0700 (PDT) Received: from localhost.localdomain ([168.138.41.106]) by smtp.gmail.com with ESMTPSA id c17-20020aa78c11000000b006ed0199bd57sm1447393pfd.177.2024.04.05.09.58.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Apr 2024 09:58:03 -0700 (PDT) From: purofle To: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org, linux-staging@lists.linux.dev, gregkh@linuxfoundation.org, purofle Subject: [PATCH] staging: fbtft: fb_st7789v: support setting offset Date: Sat, 6 Apr 2024 00:57:47 +0800 Message-ID: <20240405165747.93377-1-purofle@gmail.com> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Some screen sizes using st7789v chips are different from 240x320, and offsets need to be set to display all images properly. Signed-off-by: purofle --- drivers/staging/fbtft/fb_st7789v.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c index 861a15414..d47ab4262 100644 --- a/drivers/staging/fbtft/fb_st7789v.c +++ b/drivers/staging/fbtft/fb_st7789v.c @@ -30,6 +30,12 @@ #define HSD20_IPS 1 +#define WIDTH 240 +#define HEIGHT 320 + +#define LEFT_OFFSET 0 +#define TOP_OFFSET 0 + /** * enum st7789v_command - ST7789V display controller commands * @@ -349,6 +355,21 @@ static int set_gamma(struct fbtft_par *par, u32 *curves) return 0; } +static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye) +{ + unsigned int x = xs + TOP_OFFSET, y = xe + TOP_OFFSET; + + write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS, (x >> 8) & 0xFF, xs & 0xFF, + (y >> 8) & 0xFF, xe & 0xFF); + + x = ys + LEFT_OFFSET, y = ye + LEFT_OFFSET; + + write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS, (x >> 8) & 0xFF, ys & 0xFF, + (y >> 8) & 0xFF, ye & 0xFF); + + write_reg(par, MIPI_DCS_WRITE_MEMORY_START); +} + /** * blank() - blank the display * @@ -379,6 +400,7 @@ static struct fbtft_display display = { .set_var = set_var, .set_gamma = set_gamma, .blank = blank, + .set_addr_win = set_addr_win, }, };