From patchwork Fri May 3 21:33:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Douglas Anderson X-Patchwork-Id: 13653488 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 A0A59C4345F for ; Fri, 3 May 2024 21:38:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ECE7B1132AA; Fri, 3 May 2024 21:38:09 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="aLNY1vX+"; dkim-atps=neutral Received: from mail-pl1-f171.google.com (mail-pl1-f171.google.com [209.85.214.171]) by gabe.freedesktop.org (Postfix) with ESMTPS id B7CD71132AA for ; Fri, 3 May 2024 21:38:08 +0000 (UTC) Received: by mail-pl1-f171.google.com with SMTP id d9443c01a7336-1ec4b2400b6so940625ad.3 for ; Fri, 03 May 2024 14:38:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1714772288; x=1715377088; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=BIFkEzqD+TIhqStDpaYlErlu7+fCFfSMn8LHhnvMED8=; b=aLNY1vX+3Ct1FpYW9zdIT6ElTM6ycRtoXRtX46hiXwi2/2e3sMhv2MTFaazCKgCKoz gdKC2eoRNFbIikN2tIESNwmEWvQyYuP4L05mWD16IvSz1uNxErRrsDoqzqecu2x27Lgj hWOiUy6AXq4AmfRzTU/6BX+T7w9JlOG4h5zKM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714772288; x=1715377088; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=BIFkEzqD+TIhqStDpaYlErlu7+fCFfSMn8LHhnvMED8=; b=RYzHB7i6i/qVqPIqDms4nNo8/EpSmID7nzJCINrCDyImwEK653WkyeAz6Z2nlqxJ1v 4TDZpYXeULVCdgdPX5kiTcYMbqPUw04ijlHHcHIxeAm/IdgvCHLZ2xolu/8+7/uYiFA0 sHlpgD8N1H0CRjOUthI1/0AzV88IHNZFVfTW9Sx2QXdTIYB4ygWL1hzRYKu/dRQUmvMi 2HwTTuTZ0eLH8Xs9i/8r71174lLMIDr9c2uQw6LCx6iqzTV1QCcSgD2K6+hbhxgqeWia iC20yRljqNz+CNmSLlzx/16kYtOzkmxLCbLZu67u5QGxWVTjnleVgZGZ6oxbfMH6rmi9 bonA== X-Gm-Message-State: AOJu0Yzr81yagVaWlu3Fzc7k/Ds7SC/WHUNFgrI+KYiOblO3qhPoXOSF xrq+mobZ+JFGPzTm5gcX1fAWUsQiCuFuKLgW47892i5tKCKQ9TZJmi2hneGaeSApiS1s2t8IKC2 cEg== X-Google-Smtp-Source: AGHT+IEppDICkxPotojV6v+5Nxi2QTdXAAGWwbdKCVuRTx7nnbpoKjn0h1KLaB5gimMRVhmWkqxAGw== X-Received: by 2002:a17:902:e943:b0:1eb:7aeb:54f3 with SMTP id b3-20020a170902e94300b001eb7aeb54f3mr5417928pll.36.1714772287701; Fri, 03 May 2024 14:38:07 -0700 (PDT) Received: from dianders.sjc.corp.google.com ([2620:15c:9d:2:fb6a:b54b:7580:64f3]) by smtp.gmail.com with ESMTPSA id j12-20020a170903024c00b001eb51a46f5bsm3729134plh.43.2024.05.03.14.38.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 May 2024 14:38:07 -0700 (PDT) From: Douglas Anderson To: dri-devel@lists.freedesktop.org, Maxime Ripard Cc: Linus Walleij , Chris Morgan , Yuran Pereira , Neil Armstrong , Douglas Anderson , Robert Chiras , Daniel Vetter , David Airlie , Jessica Zhang , Maarten Lankhorst , Sam Ravnborg , Thomas Zimmermann , linux-kernel@vger.kernel.org Subject: [RFT PATCH v2 44/48] drm/panel: raydium-rm67191: Stop tracking enabled Date: Fri, 3 May 2024 14:33:25 -0700 Message-ID: <20240503143327.RFT.v2.44.I20f82e9dd1597a14ae37a64c6b8275add60fbdb1@changeid> X-Mailer: git-send-email 2.45.0.rc1.225.g2a3ae87e7f-goog In-Reply-To: <20240503213441.177109-1-dianders@chromium.org> References: <20240503213441.177109-1-dianders@chromium.org> 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" As talked about in commit d2aacaf07395 ("drm/panel: Check for already prepared/enabled in drm_panel"), we want to remove needless code from panel drivers that was storing and double-checking the prepared/enabled state. Even if someone was relying on the double-check before, that double-check is now in the core and not needed in individual drivers. The conversion of the rm67191 panel driver follows many of the other panel drivers but has a few differences that need to be called out. Like in commit 1e0465eb16a4 ("drm/panel: otm8009a: Don't double check prepared/enabled"), this panel also uses the "prepared" flag to prevent the backlight functions from running when the panel is powered off. This is probably not the safest thing to do but the old behavior was preserved. See the discussion in the otm8009a patch. Because of this, I've left the driver tracking "prepared" but removed its tracking of "enabled". NOTE: as part of this, transition the panel's direct calls to its disable/unprepare functions in shutdown to call through DRM panel. Cc: Robert Chiras Signed-off-by: Douglas Anderson --- Changes in v2: - Split removal of prepared/enabled from handling of remove/shutdown. drivers/gpu/drm/panel/panel-raydium-rm67191.c | 21 ++----------------- 1 file changed, 2 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-raydium-rm67191.c b/drivers/gpu/drm/panel/panel-raydium-rm67191.c index dbb1ed4efbed..fa9bf89d3bb5 100644 --- a/drivers/gpu/drm/panel/panel-raydium-rm67191.c +++ b/drivers/gpu/drm/panel/panel-raydium-rm67191.c @@ -205,7 +205,6 @@ struct rad_panel { unsigned int num_supplies; bool prepared; - bool enabled; }; static const struct drm_display_mode default_mode = { @@ -267,9 +266,6 @@ static int rad_panel_prepare(struct drm_panel *panel) struct rad_panel *rad = to_rad_panel(panel); int ret; - if (rad->prepared) - return 0; - ret = regulator_bulk_enable(rad->num_supplies, rad->supplies); if (ret) return ret; @@ -291,9 +287,6 @@ static int rad_panel_unprepare(struct drm_panel *panel) struct rad_panel *rad = to_rad_panel(panel); int ret; - if (!rad->prepared) - return 0; - /* * Right after asserting the reset, we need to release it, so that the * touch driver can have an active connection with the touch controller @@ -322,9 +315,6 @@ static int rad_panel_enable(struct drm_panel *panel) int color_format = color_format_from_dsi_format(dsi->format); int ret; - if (rad->enabled) - return 0; - dsi->mode_flags |= MIPI_DSI_MODE_LPM; ret = rad_panel_push_cmd_list(dsi); @@ -389,8 +379,6 @@ static int rad_panel_enable(struct drm_panel *panel) backlight_enable(rad->backlight); - rad->enabled = true; - return 0; fail: @@ -406,9 +394,6 @@ static int rad_panel_disable(struct drm_panel *panel) struct device *dev = &dsi->dev; int ret; - if (!rad->enabled) - return 0; - dsi->mode_flags |= MIPI_DSI_MODE_LPM; backlight_disable(rad->backlight); @@ -429,8 +414,6 @@ static int rad_panel_disable(struct drm_panel *panel) return ret; } - rad->enabled = false; - return 0; } @@ -633,8 +616,8 @@ static void rad_panel_shutdown(struct mipi_dsi_device *dsi) { struct rad_panel *rad = mipi_dsi_get_drvdata(dsi); - rad_panel_disable(&rad->panel); - rad_panel_unprepare(&rad->panel); + drm_panel_disable(&rad->panel); + drm_panel_unprepare(&rad->panel); } static const struct of_device_id rad_of_match[] = {