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[5.90.63.69]) by smtp.gmail.com with ESMTPSA id l39-20020a05600c1d2700b0040e50d82af5sm15536120wms.32.2024.01.15.02.34.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jan 2024 02:34:22 -0800 (PST) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Andrzej Hajda , Daniel Vetter , David Airlie , Inki Dae , Jagan Teki , Jernej Skrabec , Jonas Karlman , Laurent Pinchart , Maarten Lankhorst , Marek Szyprowski , Maxime Ripard , Neil Armstrong , Robert Foss , Thomas Zimmermann , dri-devel@lists.freedesktop.org Subject: [RESEND PATCH v9 1/2] drm: bridge: samsung-dsim: enter display mode in the enable() callback Date: Mon, 15 Jan 2024 11:33:47 +0100 Message-ID: <20240115103416.978481-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240115103416.978481-1-dario.binacchi@amarulasolutions.com> References: <20240115103416.978481-1-dario.binacchi@amarulasolutions.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788152277311225295 X-GMAIL-MSGID: 1788152277311225295 The synaptics-r63353 (panel-bridge) can only be configured in command mode. So, samsung-dsim (bridge) must not be in display mode during the prepare()/unprepare() of the panel-bridge. Setting the "pre_enable_prev_first" flag to true allows the prepare() of the panel-bridge to be called between the pre_enabled() and enabled() of the bridge. So, the bridge can enter display mode only in the enabled(). The unprepare() of the panel-bridge is instead called between the disable() and post_disable() of the bridge. So, the disable() must exit the display mode (i .e. enter command mode) to allow the panel-bridge to receive DSI commands. samsung_dsim_atomic_pre_enable -> command mode r63353_panel_prepare -> send DSI commands samsung_dsim_atomic_enable -> enter display mode samsung_dsim_atomic_disable -> exit display mode (command mode) r63353_panel_unprepare -> send DSI commands samsung_dsim_atomic_post_disable Co-developed-by: Michael Trimarchi Signed-off-by: Michael Trimarchi Signed-off-by: Dario Binacchi --- (no changes since v1) drivers/gpu/drm/bridge/samsung-dsim.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index be5914caa17d..15bf05b2bbe4 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1494,7 +1494,6 @@ static void samsung_dsim_atomic_pre_enable(struct drm_bridge *bridge, return; samsung_dsim_set_display_mode(dsi); - samsung_dsim_set_display_enable(dsi, true); } } @@ -1507,6 +1506,7 @@ static void samsung_dsim_atomic_enable(struct drm_bridge *bridge, samsung_dsim_set_display_mode(dsi); samsung_dsim_set_display_enable(dsi, true); } else { + samsung_dsim_set_display_enable(dsi, true); samsung_dsim_set_stop_state(dsi, false); } @@ -1524,6 +1524,8 @@ static void samsung_dsim_atomic_disable(struct drm_bridge *bridge, if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type)) samsung_dsim_set_stop_state(dsi, true); + samsung_dsim_set_display_enable(dsi, false); + dsi->state &= ~DSIM_STATE_VIDOUT_AVAILABLE; } @@ -1532,7 +1534,8 @@ static void samsung_dsim_atomic_post_disable(struct drm_bridge *bridge, { struct samsung_dsim *dsi = bridge_to_dsi(bridge); - samsung_dsim_set_display_enable(dsi, false); + if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type)) + samsung_dsim_set_stop_state(dsi, true); dsi->state &= ~DSIM_STATE_ENABLED; pm_runtime_put_sync(dsi->dev); From patchwork Mon Jan 15 10:33:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 188108 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:693c:2614:b0:101:6a76:bbe3 with SMTP id mm20csp1618968dyc; Mon, 15 Jan 2024 02:35:10 -0800 (PST) X-Google-Smtp-Source: AGHT+IEGlladgKDDTfboonhgtWkv8Bq7p5Emsq9mbfMuPpvncHCN3N0ZwfFVjjaefFO8iOWJfFxL X-Received: by 2002:a17:906:d1c9:b0:a23:62e9:bfa7 with SMTP id bs9-20020a170906d1c900b00a2362e9bfa7mr2231827ejb.46.1705314910231; Mon, 15 Jan 2024 02:35:10 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1705314910; cv=none; d=google.com; s=arc-20160816; b=xtH9/366PJKD9Ez89kFb7lWmB4HKtKQx6rP0ZLDiLFKK6rTeJ9M+BHaPsMPTrW5AZD 4m+KV4fZUbkxKD6oN+mry3e83fZqxrR5TfkrUjmomAicH/goiC6Nt4ihZ4qDEcc1EP+3 dYrQt9IkcrYTr+i7VF4uHHYtk35yoEm+aX6jqtc9KAWH4WbcPffL0Vm4QA1KTiXfCI9Y Bx7pYhl1lJgO5XGhi9iRleWOZtDg7YAjVVXKzwCsb2TsBWJaKK0BycaxYJwHzQOPGabu eK/QvmGEPLa+Mo87QHjBElsz3Fu4sFyvcHN6n/EbpsfEMdTSy+pVfcbRdcIlAkAmqW+L uQpA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=vUOsBiPuxBvM6FDZ7VmJ/JCXXnby3Q2ff55p54IAZ7U=; fh=m6aHy4GVWeiYcahcFfIzqNn3pzsQZUVlVWbThwuybpU=; b=NZYk8ln8Db28n+NmHn+dcumfPqRbT/DimMR7/bdSyamDLiF8+5QMBYMobldd+PRSi1 cPNA/qA7oXXz/oZIXo4iUqlPmir7ASa/afzPyazrADtGpGmLOx2rdJZSnWfdmF56s29z o8gJ6+eTTP1B76mvHGpNKYOBWaq2Zg85z/c+4fqsSgWzFu2YeKVNxRDa2NwshE0bVmiB WAVgFeFAuSKts42jVX6IDBBlmojGTfyaCuT3TS9NygbChENE8/CM7QurDww3pT65dQY3 M5UBi0qIpS2sL9kYlELHQy06DZ5HrHLqx6AZvJT7CVHFj9QweyfdI46VIw7aiUKLt+bk HKuQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b="cSDy4x/v"; spf=pass (google.com: domain of linux-kernel+bounces-25894-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-25894-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. 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[5.90.63.69]) by smtp.gmail.com with ESMTPSA id l39-20020a05600c1d2700b0040e50d82af5sm15536120wms.32.2024.01.15.02.34.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jan 2024 02:34:24 -0800 (PST) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Andrzej Hajda , Daniel Vetter , David Airlie , Inki Dae , Jagan Teki , Jernej Skrabec , Jonas Karlman , Laurent Pinchart , Maarten Lankhorst , Marek Szyprowski , Maxime Ripard , Neil Armstrong , Robert Foss , Thomas Zimmermann , dri-devel@lists.freedesktop.org Subject: [RESEND PATCH v9 2/2] drm: bridge: samsung-dsim: complete the CLKLANE_STOP setting Date: Mon, 15 Jan 2024 11:33:48 +0100 Message-ID: <20240115103416.978481-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240115103416.978481-1-dario.binacchi@amarulasolutions.com> References: <20240115103416.978481-1-dario.binacchi@amarulasolutions.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788152287482098694 X-GMAIL-MSGID: 1788152287482098694 The patch completes the setting of CLKLANE_STOP for the imx8m{m,n,p} platforms (i. e. not exynos). Co-developed-by: Michael Trimarchi Signed-off-by: Michael Trimarchi Signed-off-by: Dario Binacchi --- Changes in v9: - Updated commit message - Drop [3/3] arm64: dts: imx8mn-bsh-smm-s2/pro: add display setup because applied. Changes in v8: - Move the 'status' property to the end of the list of nodes: - pwm1 - lcdif - mipi_dsi - Add a newline between properties and child node (mipi_dsi_out). - Sort the iomuxc node alphabetically - Rename pwm1grp to blgrp Changes in v7: - Drop [3/4] dt-bindings: display: panel: Add synaptics r63353 panel controller because applied. Changes in v6: - Drop patches: - [06/10] drm/panel: Add Synaptics R63353 panel driver - [07/10] dt-bindings: display: panel: Add Ilitek ili9805 panel controller - [08/10] drm/panel: Add Ilitek ILI9805 panel driver - [09/10] drm/panel: ilitek-ili9805: add support for Tianma TM041XDHG01 panel Because applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next) Drop patches: - [01/10] drm/bridge: Fix bridge disable logic - [02/10] drm/bridge: Fix a use case in the bridge disable logic Because they are wrong Changes in v3: - Replace "synaptics,r63353" compatible with "syna,r63353", as required by vendor-prefixes.yaml. - Squash patch [09/11] dt-bindings: ili9805: add compatible string for Tianma TM041XDHG01 into [07/11] dt-bindings: display: panel: Add Ilitek ili9805 panel controller. Changes in v2: - Adjust the mipi_dsi node based on the latest patches merged into the mainline in the dtsi files it includes. - Added to the series the following patches: - 0001 drm/bridge: Fix bridge disable logic - 0002 drm/bridge: Fix a use case in the bridge disable logic - 0003 samsung-dsim: enter display mode in the enable() callback - 0004 drm: bridge: samsung-dsim: complete the CLKLANE_STOP setting drivers/gpu/drm/bridge/samsung-dsim.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index 15bf05b2bbe4..13f181c99d7e 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -96,6 +96,7 @@ #define DSIM_MFLUSH_VS BIT(29) /* This flag is valid only for exynos3250/3472/5260/5430 */ #define DSIM_CLKLANE_STOP BIT(30) +#define DSIM_NON_CONTINUOUS_CLKLANE BIT(31) /* DSIM_ESCMODE */ #define DSIM_TX_TRIGGER_RST BIT(4) @@ -945,8 +946,12 @@ static int samsung_dsim_init_link(struct samsung_dsim *dsi) * power consumption. */ if (driver_data->has_clklane_stop && - dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) + dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) { + if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type)) + reg |= DSIM_NON_CONTINUOUS_CLKLANE; + reg |= DSIM_CLKLANE_STOP; + } samsung_dsim_write(dsi, DSIM_CONFIG_REG, reg); lanes_mask = BIT(dsi->lanes) - 1;