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AJvYcCVxWT1GmQXBRfiI/TTG+BmUYCTq+VWU4xY9LT5eWIqvSbGgIIJJxWu+NDaQZyw8ThNa7QkMopo/TSRJIuVATrEXlyeQ X-Gm-Message-State: AOJu0YwZeV2Xt+eJbKWNZKDBA4aC4ObrwyukTjeKd0SoCQlCgDpz/BVV hl1NskKtUWbK8WwDoD1VjJSf+EiE9dcDFqUMEVq1IkspWplA1shYgirHXnkLeA== X-Google-Smtp-Source: AGHT+IGqOILtOMpTQpdNPww4A4HTkoN+afOAFJGfdSt9UtYlGc1IDjYPsnnRSAg9cfQkss7IrOZqZQ== X-Received: by 2002:a17:902:b495:b0:1ea:f7d4:cf2b with SMTP id y21-20020a170902b49500b001eaf7d4cf2bmr3601945plr.17.1714772271011; Fri, 03 May 2024 14:37:51 -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.43.2024.05.03.14.37.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 May 2024 14:37:50 -0700 (PDT) From: Douglas Anderson To: dri-devel@lists.freedesktop.org, Maxime Ripard Cc: Linus Walleij , Chris Morgan , Yuran Pereira , Neil Armstrong , Douglas Anderson , Marco Franchi , Fabio Estevam , Laurentiu Palcu , Pengutronix Kernel Team , imx@lists.linux.dev, Daniel Vetter , David Airlie , Jessica Zhang , Maarten Lankhorst , Sam Ravnborg , Thomas Zimmermann , linux-kernel@vger.kernel.org Subject: [RFT PATCH v2 37/48] drm/panel: seiko-43wvf1g: Don't call disable at shutdown/remove Date: Fri, 3 May 2024 14:33:18 -0700 Message-ID: <20240503143327.RFT.v2.37.Ief712fb6720cb98bdf9ec8644362d028b6554f9b@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> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 It's the responsibility of a correctly written DRM modeset driver to call drm_atomic_helper_shutdown() at shutdown time and that should be disabling / unpreparing the panel if needed. Panel drivers shouldn't be calling these functions themselves. A recent effort was made to fix as many DRM modeset drivers as possible [1] [2] [3] and most drivers are fixed now. A grep through mainline for compatible strings used by this driver indicates that it is used by IMX boards. As far as I can tell, all IMX boards are now correctly calling drm_atomic_helper_shutdown() so we can remove the calls. [1] https://lore.kernel.org/r/20230901234015.566018-1-dianders@chromium.org [2] https://lore.kernel.org/r/20230901234202.566951-1-dianders@chromium.org [3] https://lore.kernel.org/r/20230921192749.1542462-1-dianders@chromium.org Cc: Marco Franchi Cc: Fabio Estevam Cc: Laurentiu Palcu Cc: Pengutronix Kernel Team Cc: imx@lists.linux.dev Signed-off-by: Douglas Anderson --- Changes in v2: - Only handle 1 panel per patch. - Split removal of prepared/enabled from handling of remove/shutdown. drivers/gpu/drm/panel/panel-seiko-43wvf1g.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c index 98480904126c..8a3fe531c641 100644 --- a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c +++ b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c @@ -243,14 +243,6 @@ static void seiko_panel_remove(struct platform_device *pdev) struct seiko_panel *panel = platform_get_drvdata(pdev); drm_panel_remove(&panel->base); - drm_panel_disable(&panel->base); -} - -static void seiko_panel_shutdown(struct platform_device *pdev) -{ - struct seiko_panel *panel = platform_get_drvdata(pdev); - - drm_panel_disable(&panel->base); } static const struct display_timing seiko_43wvf1g_timing = { @@ -306,7 +298,6 @@ static struct platform_driver seiko_panel_platform_driver = { }, .probe = seiko_panel_platform_probe, .remove_new = seiko_panel_remove, - .shutdown = seiko_panel_shutdown, }; module_platform_driver(seiko_panel_platform_driver);