From patchwork Mon Sep 23 12:25:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tejas Vipin X-Patchwork-Id: 13809551 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5BD61CF9C6E for ; Mon, 23 Sep 2024 12:33:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CDD9810E237; Mon, 23 Sep 2024 12:33:26 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="JQv1/uwn"; dkim-atps=neutral Received: from mail-pg1-f179.google.com (mail-pg1-f179.google.com [209.85.215.179]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1171E10E237 for ; Mon, 23 Sep 2024 12:33:26 +0000 (UTC) Received: by mail-pg1-f179.google.com with SMTP id 41be03b00d2f7-7d666fb3fb9so2001114a12.0 for ; Mon, 23 Sep 2024 05:33:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1727094805; x=1727699605; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=WnZ1mJ0xSGz3MPNSmU/3w1WkSR43rfZNTvcNA1XQD6c=; b=JQv1/uwnZL5GI2B629ykuY8hVld0uHLXuIxiPaJVPk1W4wK3ACaIBfp+Y/UguA9Rpn 9m2Y73PWfRyo0ipM+I11YlzibyPN3lqwzIlZWYmzX266dmCAwnlZsFZFUvfRyM+OqPAx X9AweaoE2szzVhMEI5/IUU4GgXPsqAuY2KGIVBl1UMApKC2242/Ia0Nyc+0Irlwm6C8t jB39jVx3Y56sEY1hMvcAYk5HmAepu2uIX62Vq43gjMxTaDD6eDXnvV7izqiBjwNBmh5U Xxp+Th9Tnq0bgvZ3VKqPZFZgB6iEDFay6vJvUZISNJJq3cV5+vbhoirbGhTcu86Xzn3B knSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727094805; x=1727699605; 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=WnZ1mJ0xSGz3MPNSmU/3w1WkSR43rfZNTvcNA1XQD6c=; b=pVMs2ldM0YcBRqvXaK6xNPdDMYfP70Q+2dwgZ/ENHRedUthAdHmWj4er06UtMuJNBG 60LxdorRW5Z/a41J26cGGb/RqDtJE4qIr4QnR+2hLIEdWowzJxdg/TrDtL+iyWJ32n4E ydAATW6A8Ue3MWFJu/aurutXuKVeAocHfUZfq8fdWGOvQ0+G5tR8gxyfAO3CZXJRdwT6 8xk/KTlGz9ioXAlOzZ9D9A4WZNe/FHk92C/AnwEVz4OSQ2/f9YOSE3KhU4Ftm1MWDZnv NjWesiN/59/y2nEnta2VGyO4d+gOGvrYJg/jh+VHdk8YbVIfIYIGLHUUI1l3lqyqEOv+ S5CA== X-Forwarded-Encrypted: i=1; AJvYcCVR3sPY1XS77iXBh/Y2HXncoJAqrDV2O/fAlQV8oDXHsE48qL71psctitOwRNWCzCmJOeqOxv7hVxw=@lists.freedesktop.org X-Gm-Message-State: AOJu0YxItFsCUzYci4c5lYXN1uecKMch86TBgTwJFujmc9UFqtWu0b7y walYOsgfQ4DJqnQEzrvHz5g0OXGU63cxl8OQ5UPFE3cHD1SN+L0k X-Google-Smtp-Source: AGHT+IH2aTee1fvftdnkbuuRP0h6QHYhefVJ/JHUJuhjgKucjhqYQClN/hlAUA8gbCCJ7KVBaejObA== X-Received: by 2002:a05:6a20:cf84:b0:1d2:e458:404b with SMTP id adf61e73a8af0-1d30a91f380mr18066767637.14.1727094805325; Mon, 23 Sep 2024 05:33:25 -0700 (PDT) Received: from distilledx.srmu.edu.in ([59.152.80.69]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71944bc8b30sm13813347b3a.190.2024.09.23.05.33.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Sep 2024 05:33:24 -0700 (PDT) From: Tejas Vipin To: neil.armstrong@linaro.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch Cc: quic_jesszhan@quicinc.com, dianders@chromium.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Tejas Vipin Subject: [PATCH v2] drm/panel: elida-kd35t133: transition to mipi_dsi wrapped functions Date: Mon, 23 Sep 2024 17:55:58 +0530 Message-ID: <20240923122558.728516-1-tejasvipin76@gmail.com> X-Mailer: git-send-email 2.46.1 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 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" Changes the elida-kd35t133 panel to use multi style functions for improved error handling. Signed-off-by: Tejas Vipin Reviewed-by: Dmitry Baryshkov Reviewed-by: Jessica Zhang --- Changes in v2: - Changed mipi_dsi_dcs_write to mipi_dsi_dcs_write_buffer_multi - Cleaned up error handling Link to v1: https://lore.kernel.org/all/20240917071710.1254520-1-tejasvipin76@gmail.com/ --- drivers/gpu/drm/panel/panel-elida-kd35t133.c | 108 ++++++++----------- 1 file changed, 45 insertions(+), 63 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-elida-kd35t133.c b/drivers/gpu/drm/panel/panel-elida-kd35t133.c index 00791ea81e90..2c031301fdd2 100644 --- a/drivers/gpu/drm/panel/panel-elida-kd35t133.c +++ b/drivers/gpu/drm/panel/panel-elida-kd35t133.c @@ -50,55 +50,44 @@ static inline struct kd35t133 *panel_to_kd35t133(struct drm_panel *panel) return container_of(panel, struct kd35t133, panel); } -static int kd35t133_init_sequence(struct kd35t133 *ctx) +static void kd35t133_init_sequence(struct mipi_dsi_multi_context *dsi_ctx) { - struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); - struct device *dev = ctx->dev; - /* * Init sequence was supplied by the panel vendor with minimal * documentation. */ - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_POSITIVEGAMMA, - 0x00, 0x13, 0x18, 0x04, 0x0f, 0x06, 0x3a, 0x56, - 0x4d, 0x03, 0x0a, 0x06, 0x30, 0x3e, 0x0f); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_NEGATIVEGAMMA, - 0x00, 0x13, 0x18, 0x01, 0x11, 0x06, 0x38, 0x34, - 0x4d, 0x06, 0x0d, 0x0b, 0x31, 0x37, 0x0f); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_POWERCONTROL1, 0x18, 0x17); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_POWERCONTROL2, 0x41); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_VCOMCONTROL, 0x00, 0x1a, 0x80); - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x48); - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_PIXEL_FORMAT, 0x55); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_INTERFACEMODECTRL, 0x00); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_FRAMERATECTRL, 0xa0); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_DISPLAYINVERSIONCTRL, 0x02); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_DISPLAYFUNCTIONCTRL, - 0x20, 0x02); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_SETIMAGEFUNCTION, 0x00); - mipi_dsi_dcs_write_seq(dsi, KD35T133_CMD_ADJUSTCONTROL3, - 0xa9, 0x51, 0x2c, 0x82); - mipi_dsi_dcs_write(dsi, MIPI_DCS_ENTER_INVERT_MODE, NULL, 0); - - dev_dbg(dev, "Panel init sequence done\n"); - return 0; + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_POSITIVEGAMMA, + 0x00, 0x13, 0x18, 0x04, 0x0f, 0x06, 0x3a, 0x56, + 0x4d, 0x03, 0x0a, 0x06, 0x30, 0x3e, 0x0f); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_NEGATIVEGAMMA, + 0x13, 0x18, 0x01, 0x11, 0x06, 0x38, 0x34, + 0x06, 0x0d, 0x0b, 0x31, 0x37, 0x0f); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_POWERCONTROL1, 0x18, 0x17); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_POWERCONTROL2, 0x41); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_VCOMCONTROL, 0x00, 0x1a, 0x80); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x48); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, MIPI_DCS_SET_PIXEL_FORMAT, 0x55); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_INTERFACEMODECTRL, 0x00); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_FRAMERATECTRL, 0xa0); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_DISPLAYINVERSIONCTRL, 0x02); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_DISPLAYFUNCTIONCTRL, + 0x02); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_SETIMAGEFUNCTION, 0x00); + mipi_dsi_dcs_write_seq_multi(dsi_ctx, KD35T133_CMD_ADJUSTCONTROL3, + 0x51, 0x2c, 0x82); + mipi_dsi_dcs_write_buffer_multi(dsi_ctx, NULL, 0); } static int kd35t133_unprepare(struct drm_panel *panel) { struct kd35t133 *ctx = panel_to_kd35t133(panel); struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); - int ret; + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; - ret = mipi_dsi_dcs_set_display_off(dsi); - if (ret < 0) - dev_err(ctx->dev, "failed to set display off: %d\n", ret); - - ret = mipi_dsi_dcs_enter_sleep_mode(dsi); - if (ret < 0) { - dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret); - return ret; - } + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); + mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); + if (dsi_ctx.accum_err) + return dsi_ctx.accum_err; gpiod_set_value_cansleep(ctx->reset_gpio, 1); @@ -112,18 +101,20 @@ static int kd35t133_prepare(struct drm_panel *panel) { struct kd35t133 *ctx = panel_to_kd35t133(panel); struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); - int ret; + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; dev_dbg(ctx->dev, "Resetting the panel\n"); - ret = regulator_enable(ctx->vdd); - if (ret < 0) { - dev_err(ctx->dev, "Failed to enable vdd supply: %d\n", ret); - return ret; + dsi_ctx.accum_err = regulator_enable(ctx->vdd); + if (dsi_ctx.accum_err) { + dev_err(ctx->dev, "Failed to enable vdd supply: %d\n", + dsi_ctx.accum_err); + return dsi_ctx.accum_err; } - ret = regulator_enable(ctx->iovcc); - if (ret < 0) { - dev_err(ctx->dev, "Failed to enable iovcc supply: %d\n", ret); + dsi_ctx.accum_err = regulator_enable(ctx->iovcc); + if (dsi_ctx.accum_err) { + dev_err(ctx->dev, "Failed to enable iovcc supply: %d\n", + dsi_ctx.accum_err); goto disable_vdd; } @@ -135,27 +126,18 @@ static int kd35t133_prepare(struct drm_panel *panel) msleep(20); - ret = mipi_dsi_dcs_exit_sleep_mode(dsi); - if (ret < 0) { - dev_err(ctx->dev, "Failed to exit sleep mode: %d\n", ret); - goto disable_iovcc; - } + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 250); - msleep(250); + kd35t133_init_sequence(&dsi_ctx); + if (!dsi_ctx.accum_err) + dev_dbg(ctx->dev, "Panel init sequence done\n"); - ret = kd35t133_init_sequence(ctx); - if (ret < 0) { - dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret); - goto disable_iovcc; - } + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 50); - ret = mipi_dsi_dcs_set_display_on(dsi); - if (ret < 0) { - dev_err(ctx->dev, "Failed to set display on: %d\n", ret); + if (dsi_ctx.accum_err) goto disable_iovcc; - } - - msleep(50); return 0; @@ -163,7 +145,7 @@ static int kd35t133_prepare(struct drm_panel *panel) regulator_disable(ctx->iovcc); disable_vdd: regulator_disable(ctx->vdd); - return ret; + return dsi_ctx.accum_err; } static const struct drm_display_mode default_mode = {