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[95.248.31.20]) by smtp.gmail.com with ESMTPSA id m7-20020aa7d347000000b005149461b1e0sm1380058edr.25.2023.06.08.23.21.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jun 2023 23:21:02 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, Amarula patchwork , Dario Binacchi , Alexandre Torgue , Conor Dooley , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v3 1/4] ARM: dts: stm32: add ltdc support on stm32f746 MCU Date: Fri, 9 Jun 2023 08:20:47 +0200 Message-Id: <20230609062050.2107143-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230609062050.2107143-1-dario.binacchi@amarulasolutions.com> References: <20230609062050.2107143-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768205951844714446?= X-GMAIL-MSGID: =?utf-8?q?1768205951844714446?= Add LTDC (Lcd-tft Display Controller) support. Signed-off-by: Dario Binacchi Reviewed-by: Raphaël Gallais-Pou --- (no changes since v1) arch/arm/boot/dts/stm32f746.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi index dc868e6da40e..9c4ba0b7f239 100644 --- a/arch/arm/boot/dts/stm32f746.dtsi +++ b/arch/arm/boot/dts/stm32f746.dtsi @@ -507,6 +507,16 @@ pwm { }; }; + ltdc: display-controller@40016800 { + compatible = "st,stm32-ltdc"; + reg = <0x40016800 0x200>; + interrupts = <88>, <89>; + resets = <&rcc STM32F7_APB2_RESET(LTDC)>; + clocks = <&rcc 1 CLK_LCD>; + clock-names = "lcd"; + status = "disabled"; + }; + pwrcfg: power-config@40007000 { compatible = "st,stm32-power-config", "syscon"; reg = <0x40007000 0x400>; From patchwork Fri Jun 9 06:20:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 105293 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp750436vqr; Thu, 8 Jun 2023 23:38:22 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ79/HslTrpvuRrKkr3JtpdMWYD6ieM3PSQ1g/f0q6A/yRL7tkabs1EhwV+Cooq/tJRmI+MM X-Received: by 2002:a92:cc43:0:b0:33a:63b9:db83 with SMTP id t3-20020a92cc43000000b0033a63b9db83mr741911ilq.19.1686292701763; Thu, 08 Jun 2023 23:38:21 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1686292701; cv=none; d=google.com; s=arc-20160816; b=pQyg7yqfJJ7A+Ied3b/zma5r2azJpBKrUxMxKe922BHfkwlKI9VgVYH1iGdGguh+E9 n74/F52P57vQ/03pnwSZJ9cerwWvhb5SXwfUwnVqHuD0Ix7Aj/wA/XOUVaKgUDDlOsfH rRd7RToBm8Qd679ugWL+ozy5LafNma3iD2WRuH+tnMOVP/QykkaQu3qaI0/LBxHjJC/8 p80GVfEScaLHLYPWsDAW/Bvj86DMaAq6eF26W9gZjBqjjiHJVs96oiziWc4yNjNzSQrc EauwKzmRwidnQfbMuw9ZPwt9cNSYaDatNBC59k8r7oBJWtEjQBht30gtNOTFn31jdkrn us5g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=8+cZsaL4nqe4EkBv4C/rg83ziLwGA0zL1CPKVC/ZIpY=; b=VAVmm7M5jFVZx92fG6KdJjhqJwAGqXg2J+OO8L7I5baECrRGhn1lZVEqAw4OnYRIMJ NcvBdXYv8rJ9RoB5dmh3RXH3dT702x2H85PcO2WxAYl5HnEt2KLXrudNBHumkqPxkQOi ZEEUIJ9Av5IKRxV3hlMPr1bOL4jHzVzH8kO8o9pXjEtXMDWCBSQlkjzHDGWxSnFDn5nY sGviAlsb+KxqwmuuOiQMDV7AWq44VnzpdJC++a+nguACnJDj6UO3x23ut8MTzyLdbxuV 6DwftFGSbVUR8HfIDhkHUPF+rz/pL11DU3JGAewnw8Ky3XjFha4AaEVqyiwFrX7FWTqv IMhw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=Xh2ITA29; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Received: from out1.vger.email (out1.vger.email. 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[95.248.31.20]) by smtp.gmail.com with ESMTPSA id m7-20020aa7d347000000b005149461b1e0sm1380058edr.25.2023.06.08.23.21.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jun 2023 23:21:04 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, Amarula patchwork , Dario Binacchi , Alexandre Torgue , Conor Dooley , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v3 2/4] ARM: dts: stm32: add pin map for LTDC on stm32f7 Date: Fri, 9 Jun 2023 08:20:48 +0200 Message-Id: <20230609062050.2107143-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230609062050.2107143-1-dario.binacchi@amarulasolutions.com> References: <20230609062050.2107143-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768206056488658611?= X-GMAIL-MSGID: =?utf-8?q?1768206056488658611?= Add pin configurations for using LTDC (LCD-tft Display Controller) on stm32f746-disco board. Signed-off-by: Dario Binacchi Reviewed-by: Raphaël Gallais-Pou --- Changes in v3: - rename ltdc-pins-a-0 to ltdc-0. arch/arm/boot/dts/stm32f7-pinctrl.dtsi | 35 ++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/arch/arm/boot/dts/stm32f7-pinctrl.dtsi b/arch/arm/boot/dts/stm32f7-pinctrl.dtsi index 9f65403295ca..36dad40dd0c7 100644 --- a/arch/arm/boot/dts/stm32f7-pinctrl.dtsi +++ b/arch/arm/boot/dts/stm32f7-pinctrl.dtsi @@ -365,6 +365,41 @@ pins2 { bias-pull-up; }; }; + + + ltdc_pins_a: ltdc-0 { + pins { + pinmux = , /* LCD_B0 */ + , /* LCD_B4 */ + , /* LCD_VSYNC */ + , /* LCD_HSYNC */ + , /* LCD_CLK */ + , /* LCD_R0 */ + , /* LCD_R1 */ + , /* LCD_R2 */ + , /* LCD_R3 */ + , /* LCD_R4 */ + , /* LCD_R5 */ + , /* LCD_R6 */ + , /* LCD_R7 */ + , /* LCD_G0 */ + , /* LCD_G1 */ + , /* LCD_G2 */ + , /* LCD_G3 */ + , /* LCD_G4 */ + , /* LCD_B1 */ + , /* LCD_B2 */ + , /* LCD_B3 */ + , /* LCD_G5 */ + , /* LCD_G6 */ + , /* LCD_G7 */ + , /* LCD_B5 */ + , /* LCD_B6 */ + , /* LCD_B7 */ + ; /* LCD_DE */ + slew-rate = <2>; + }; + }; }; }; }; From patchwork Fri Jun 9 06:20:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 105294 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp751271vqr; Thu, 8 Jun 2023 23:40:28 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ7IDP3TtfO6ilpFkwMpzl30v6mQEgvC/LZG4z3ne77rHoqLwqj4eNQiuN+JAWsg6Dza7H70 X-Received: by 2002:a17:90a:1a0a:b0:259:56c8:7b98 with SMTP id 10-20020a17090a1a0a00b0025956c87b98mr424117pjk.5.1686292828002; Thu, 08 Jun 2023 23:40:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1686292827; cv=none; d=google.com; s=arc-20160816; b=fcOm3SN0hAvZSIyIKDgs8/IRGYavc3yD1jBQTDEYQRgEckCTyVEMWKbynCYz92SNAz dg8L9ltIeYN7WfltcbI/rdLuFS2h8vW2ENFZfl9GxN2bfIhgU6vPICS56cRIRXZKCPHW 1PDZHPxheX1RFhWc4Q1f5+7ewbkdGR1fL3zKU7PXNFyifHOfiuo7lQezSHLKBhi1HhLz JGPajamhXY2VZlL33kv/N8BbMc2WimYU05ITPJN26NMI9zIXRgwXucm6GNphcIpDAd89 lkk1bAD8WQVH6LV29JHxUKP2YW+8EBKDs9Kg7toXWGaOruhgczTj+D4viXNbwr2KPY09 xx+A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=tlm5X0f1SJIUHEa+Ch7CRBAmlhS5LXsyaOP8GZ1/KKI=; b=jUwzgPRV26HHgQscTGUiHcRKki+/HaFMS6lCSqGfV126H/GCc+T5lFVXFgKFPflUbF /PW2QuZOfWDkieWff6Gfe3f5rpPrHNGjqLDgDXGaDxokMYYluzTg4vR8j+H6WM85Mh+4 aTzO/QRCuE4qSVCiJDhls5Xg4DcZABh97ho1g1A8uJQH8Y8Xf5ZBfHwGNHnUH97CzrMK 2BzlGiYP4e3CKScKSfUOQ8V98PO03eu/3aekBBQ8b5/6tMPG1GooXR+OFo/SPIXTVhME qMMMks/R6JFw0ZsaUJvDmgPNriBTXcGsj7c5WyhfoILBc48IThi+6imt+vQQ7S7jvCzq loiQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=Zn2wbcwo; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Received: from out1.vger.email (out1.vger.email. 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[95.248.31.20]) by smtp.gmail.com with ESMTPSA id m7-20020aa7d347000000b005149461b1e0sm1380058edr.25.2023.06.08.23.21.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jun 2023 23:21:05 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, Amarula patchwork , Dario Binacchi , Alexandre Torgue , Conor Dooley , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v3 3/4] ARM: dts: stm32: support display on stm32f746-disco board Date: Fri, 9 Jun 2023 08:20:49 +0200 Message-Id: <20230609062050.2107143-4-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230609062050.2107143-1-dario.binacchi@amarulasolutions.com> References: <20230609062050.2107143-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768206188533880701?= X-GMAIL-MSGID: =?utf-8?q?1768206188533880701?= Add support to Rocktech RK043FN48H display on stm32f746-disco board. Signed-off-by: Dario Binacchi Reviewed-by: Raphaël Gallais-Pou --- (no changes since v1) arch/arm/boot/dts/stm32f746-disco.dts | 51 +++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/arch/arm/boot/dts/stm32f746-disco.dts b/arch/arm/boot/dts/stm32f746-disco.dts index c11616ed5fc6..cda423b6a874 100644 --- a/arch/arm/boot/dts/stm32f746-disco.dts +++ b/arch/arm/boot/dts/stm32f746-disco.dts @@ -60,10 +60,41 @@ memory@c0000000 { reg = <0xC0000000 0x800000>; }; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + linux,cma { + compatible = "shared-dma-pool"; + no-map; + size = <0x80000>; + linux,dma-default; + }; + }; + aliases { serial0 = &usart1; }; + backlight: backlight { + compatible = "gpio-backlight"; + gpios = <&gpiok 3 GPIO_ACTIVE_HIGH>; + status = "okay"; + }; + + panel_rgb: panel-rgb { + compatible = "rocktech,rk043fn48h"; + backlight = <&backlight>; + enable-gpios = <&gpioi 12 GPIO_ACTIVE_HIGH>; + status = "okay"; + port { + panel_in_rgb: endpoint { + remote-endpoint = <<dc_out_rgb>; + }; + }; + }; + usbotg_hs_phy: usb-phy { #phy-cells = <0>; compatible = "usb-nop-xceiv"; @@ -99,6 +130,26 @@ &i2c1 { status = "okay"; }; +&dma1 { + status = "okay"; +}; + +&dma2 { + status = "okay"; +}; + +<dc { + pinctrl-0 = <<dc_pins_a>; + pinctrl-names = "default"; + status = "okay"; + + port { + ltdc_out_rgb: endpoint { + remote-endpoint = <&panel_in_rgb>; + }; + }; +}; + &sdio1 { status = "okay"; vmmc-supply = <&mmc_vcard>; From patchwork Fri Jun 9 06:20:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 105292 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp750232vqr; Thu, 8 Jun 2023 23:37:41 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ7wkXNM4Kprjuf88S5qxSMHvhUNLq6IJyezaJb8uPlT9vr86d0c+w4wG5aej+Sw5jX0et9K X-Received: by 2002:a17:902:ce90:b0:1aa:d545:462e with SMTP id f16-20020a170902ce9000b001aad545462emr590062plg.13.1686292660899; Thu, 08 Jun 2023 23:37:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1686292660; cv=none; d=google.com; s=arc-20160816; b=ReLkIJQjXtUNZ45XBgswN30inKR0cydY0Ny356FnAskTHXcrurl1fkKk+dbWuDWHTU Gbt0PlLfGjKii1pU9mdQUKOuyp6Nwb5pOAks+Vd/7PCOnHW9HXvf+rqVcWnE3BQQ0HcV eK9xbDTGjUGLGa80W61qPyosj24dB+5CpfJsviYT330ruwNKrakAb+ODQF7GX21TQ8Fm kH7V+RD2ZEbrDId/Rn1hiHbMNQ33rrkMZyUtoXWcx7+OvX6MbozpmOAGHaVy34WKe27f eAjSLVGP8DVyat3n46h335KKi0fj1eTW81n9XW7EN32b+rWT4qDYltJKPXMbS+xW5aT9 zFlA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=iGNFX6HEdIKRiw8NKvPwhXc8R+GQd9GHBG/7VCCQih4=; b=s1OWqZMeRUb4Ji998YTMI97Er7mNPmz5ftatbGrfnl+tcaeVF8RTC7h5TUKifrCGKp DJuXrEH07sV5+22kAuxavIjppTRfnWuM5+odh9Fmmr8MzE1NQiEpTMw7enK+h7ZNWT4I +EaGApg8oHNh4xKIucHgPWU+uwFB2qfKbjCJCEj4h3zNQmWQbrZZbx9UfiLuiaOOoON3 kAtEuxS1rhCUAzOHt50Hap18SNgMdnRMxjNp/6QKsw8bWlJeS+Cp3qBzRfSKRlaBw6fM Ra6yTIsXyG3mnl1WMSvp5T5xZ0FCuWS+qT2R7b20SsP/wM6KX27+X9kkdMmlodChxplo kDXQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b="M/5/NpTF"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Received: from out1.vger.email (out1.vger.email. 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[95.248.31.20]) by smtp.gmail.com with ESMTPSA id m7-20020aa7d347000000b005149461b1e0sm1380058edr.25.2023.06.08.23.21.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jun 2023 23:21:07 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, Amarula patchwork , Dario Binacchi , Alexandre Torgue , Daniel Vetter , David Airlie , Maxime Coquelin , Philippe Cornu , Raphael Gallais-Pou , Yannick Fertre , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v3 4/4] drm/stm: add an option to change FB bpp Date: Fri, 9 Jun 2023 08:20:50 +0200 Message-Id: <20230609062050.2107143-5-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230609062050.2107143-1-dario.binacchi@amarulasolutions.com> References: <20230609062050.2107143-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768206013350550296?= X-GMAIL-MSGID: =?utf-8?q?1768206013350550296?= Boards that use the STM32F{4,7} series have limited amounts of RAM. The added parameter allows users to size, within certain limits, the memory footprint required by the framebuffer. Signed-off-by: Dario Binacchi Acked-by: Philippe Cornu --- Changes in v3: - drop [4/6] dt-bindings: display: simple: add Rocktech RK043FN48H Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next): https://cgit.freedesktop.org/drm/drm-misc/commit/?id=c42a37a27c777d63961dd634a30f7c887949491a - drop [5/6] drm/panel: simple: add support for Rocktech RK043FN48H panel Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next) https://cgit.freedesktop.org/drm/drm-misc/commit/?id=13cdd12a9f934158f4ec817cf048fcb4384aa9dc drivers/gpu/drm/stm/drv.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c index 422220df7d8c..65be2b442a6a 100644 --- a/drivers/gpu/drm/stm/drv.c +++ b/drivers/gpu/drm/stm/drv.c @@ -30,6 +30,11 @@ #define STM_MAX_FB_WIDTH 2048 #define STM_MAX_FB_HEIGHT 2048 /* same as width to handle orientation */ +static uint stm_bpp = 16; + +MODULE_PARM_DESC(bpp, "bits-per-pixel (default: 16)"); +module_param_named(bpp, stm_bpp, uint, 0644); + static const struct drm_mode_config_funcs drv_mode_config_funcs = { .fb_create = drm_gem_fb_create, .atomic_check = drm_atomic_helper_check, @@ -93,6 +98,7 @@ static int drv_load(struct drm_device *ddev) ddev->mode_config.min_height = 0; ddev->mode_config.max_width = STM_MAX_FB_WIDTH; ddev->mode_config.max_height = STM_MAX_FB_HEIGHT; + ddev->mode_config.preferred_depth = stm_bpp; ddev->mode_config.funcs = &drv_mode_config_funcs; ddev->mode_config.normalize_zpos = true; @@ -203,7 +209,7 @@ static int stm_drm_platform_probe(struct platform_device *pdev) if (ret) goto err_put; - drm_fbdev_dma_setup(ddev, 16); + drm_fbdev_dma_setup(ddev, stm_bpp); return 0;