From nobody Mon Feb 9 08:22:32 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3AA0DC77B7A for ; Wed, 24 May 2023 09:34:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229685AbjEXJed (ORCPT ); Wed, 24 May 2023 05:34:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229542AbjEXJeZ (ORCPT ); Wed, 24 May 2023 05:34:25 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F91EC0 for ; Wed, 24 May 2023 02:34:23 -0700 (PDT) Received: from IcarusMOD.eternityproject.eu (unknown [IPv6:2001:b07:2ed:14ed:a962:cd4d:a84:1eab]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 3BAC66602F6A; Wed, 24 May 2023 10:34:21 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1684920861; bh=UhPYkAXn11l5HCs1IddO+VQSqgiY8B30l4baBYtD728=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mNexC93aSqJBpRp6DYVULa3o+B7m+hMQ3jSt0/oPR0RDVbV9u0CES21Nom15ed6bP 9vNoLpGVJHJbsZ3A83ziBnLYDd4ZFAYMl/5S/yjb2EXGkFLLpCqJIqZ2SH/9d/BExx 694NRclPSEpbEoRQlxISYRJmfv9d/KUeLKtZXlGrkoRch0q16JhKLzLG/8S4JjI6i2 CKS5SoDACM7uSZXW/gjHkyuqOtrW5L40455nYFnAhyX7lsyOGXW8dlkgSpUqmIOg68 Gvz1CeyfXmuWTYEh2Y5/5uYboVFeQd9e0OmPLsvkmuhxQ0enLDbz8y8eaMYV0AjzxK dLwhCY2THXETA== From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@collabora.com Subject: [PATCH v1 1/4] drm/mediatek: dsi: Use GENMASK() for register mask definitions Date: Wed, 24 May 2023 11:34:09 +0200 Message-Id: <20230524093412.92211-2-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524093412.92211-1-angelogioacchino.delregno@collabora.com> References: <20230524093412.92211-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Change magic numerical masks with usage of the GENMASK() macro to improve readability. This commit brings no functional changes. Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_dsi.c | 46 ++++++++++++++++-------------- 1 file changed, 24 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/= mtk_dsi.c index b0ab38e59db9..246a3a338c1e 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -58,18 +58,18 @@ =20 #define DSI_TXRX_CTRL 0x18 #define VC_NUM BIT(1) -#define LANE_NUM (0xf << 2) +#define LANE_NUM GENMASK(5, 2) #define DIS_EOT BIT(6) #define NULL_EN BIT(7) #define TE_FREERUN BIT(8) #define EXT_TE_EN BIT(9) #define EXT_TE_EDGE BIT(10) -#define MAX_RTN_SIZE (0xf << 12) +#define MAX_RTN_SIZE GENMASK(15, 12) #define HSTX_CKLP_EN BIT(16) =20 #define DSI_PSCTRL 0x1c -#define DSI_PS_WC 0x3fff -#define DSI_PS_SEL (3 << 16) +#define DSI_PS_WC GENMASK(14, 0) +#define DSI_PS_SEL GENMASK(19, 16) #define PACKED_PS_16BIT_RGB565 (0 << 16) #define LOOSELY_PS_18BIT_RGB666 (1 << 16) #define PACKED_PS_18BIT_RGB666 (2 << 16) @@ -108,26 +108,27 @@ #define LD0_WAKEUP_EN BIT(2) =20 #define DSI_PHY_TIMECON0 0x110 -#define LPX (0xff << 0) -#define HS_PREP (0xff << 8) -#define HS_ZERO (0xff << 16) -#define HS_TRAIL (0xff << 24) +#define LPX GENMASK(7, 0) +#define HS_PREP GENMASK(15, 8) +#define HS_ZERO GENMASK(23, 16) +#define HS_TRAIL GENMASK(31, 24) =20 #define DSI_PHY_TIMECON1 0x114 -#define TA_GO (0xff << 0) -#define TA_SURE (0xff << 8) -#define TA_GET (0xff << 16) -#define DA_HS_EXIT (0xff << 24) +#define TA_GO GENMASK(7, 0) +#define TA_SURE GENMASK(15, 8) +#define TA_GET GENMASK(23, 16) +#define DA_HS_EXIT GENMASK(31, 24) =20 #define DSI_PHY_TIMECON2 0x118 -#define CONT_DET (0xff << 0) -#define CLK_ZERO (0xff << 16) -#define CLK_TRAIL (0xff << 24) +#define CONT_DET GENMASK(7, 0) +#define DA_HS_SYNC GENMASK(15, 8) +#define CLK_ZERO GENMASK(23, 16) +#define CLK_TRAIL GENMASK(31, 24) =20 #define DSI_PHY_TIMECON3 0x11c -#define CLK_HS_PREP (0xff << 0) -#define CLK_HS_POST (0xff << 8) -#define CLK_HS_EXIT (0xff << 16) +#define CLK_HS_PREP GENMASK(7, 0) +#define CLK_HS_POST GENMASK(15, 8) +#define CLK_HS_EXIT GENMASK(23, 16) =20 #define DSI_VM_CMD_CON 0x130 #define VM_CMD_EN BIT(0) @@ -137,13 +138,14 @@ #define FORCE_COMMIT BIT(0) #define BYPASS_SHADOW BIT(1) =20 -#define CONFIG (0xff << 0) +/* CMDQ related bits */ +#define CONFIG GENMASK(7, 0) #define SHORT_PACKET 0 #define LONG_PACKET 2 #define BTA BIT(2) -#define DATA_ID (0xff << 8) -#define DATA_0 (0xff << 16) -#define DATA_1 (0xff << 24) +#define DATA_ID GENMASK(15, 8) +#define DATA_0 GENMASK(23, 16) +#define DATA_1 GENMASK(31, 24) =20 #define NS_TO_CYCLE(n, c) ((n) / (c) + (((n) % (c)) ? 1 : 0)) =20 --=20 2.40.1 From nobody Mon Feb 9 08:22:32 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50F67C7EE2E for ; Wed, 24 May 2023 09:34:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229720AbjEXJeh (ORCPT ); Wed, 24 May 2023 05:34:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229448AbjEXJeZ (ORCPT ); Wed, 24 May 2023 05:34:25 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40F3993 for ; Wed, 24 May 2023 02:34:24 -0700 (PDT) Received: from IcarusMOD.eternityproject.eu (unknown [IPv6:2001:b07:2ed:14ed:a962:cd4d:a84:1eab]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 0E54866031B5; Wed, 24 May 2023 10:34:22 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1684920862; bh=AF3G+Ay1qVP5IzxZeph5rM6hzV1JNEhtA1DrPHYLiqw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OugGCOpFY54lbwjNzJQJiM8JFbU00DKYcvd4pl9j8/D0gKxbP/MhLhSt3/ebjUoey qr54Etmah/yFx7zQ2q6o9QdUSZQp7RIZi5Jvz+/ihnlwgQlGToWZGaR9X6BVDIykF5 eZdAf3MUmP3RHwlcd1WC5eWg9P/p9k+MBqqY75D7e90E4gIOf9TD3BtjJ0lvt2N+hh 1SIC9EZ3NW7MAvoJcb8HDETnurF0WBS1nwYT/DIdN6zbkp+AVZGve0OhcQLWwvSa4F xQ6Fh235PzeyK7FJc0wu3SRyjIGRGnNXQN0oWiJ5bl/7cknW1L6naB3YRZx+RUWfQo Zido2mMFKMt9w== From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@collabora.com Subject: [PATCH v1 2/4] drm/mediatek: dsi: Cleanup functions mtk_dsi_ps_control{_vact}() Date: Wed, 24 May 2023 11:34:10 +0200 Message-Id: <20230524093412.92211-3-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524093412.92211-1-angelogioacchino.delregno@collabora.com> References: <20230524093412.92211-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Function mtk_dsi_ps_control() is a subset of mtk_dsi_ps_control_vact(): merge the two in one mtk_dsi_ps_control() function by adding one function parameter `config_vact` which, when true, writes the VACT related registers. Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_dsi.c | 76 +++++++++--------------------- 1 file changed, 23 insertions(+), 53 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/= mtk_dsi.c index 246a3a338c1e..97d5b3083057 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -350,40 +350,6 @@ static void mtk_dsi_set_vm_cmd(struct mtk_dsi *dsi) mtk_dsi_mask(dsi, DSI_VM_CMD_CON, TS_VFP_EN, TS_VFP_EN); } =20 -static void mtk_dsi_ps_control_vact(struct mtk_dsi *dsi) -{ - struct videomode *vm =3D &dsi->vm; - u32 dsi_buf_bpp, ps_wc; - u32 ps_bpp_mode; - - if (dsi->format =3D=3D MIPI_DSI_FMT_RGB565) - dsi_buf_bpp =3D 2; - else - dsi_buf_bpp =3D 3; - - ps_wc =3D vm->hactive * dsi_buf_bpp; - ps_bpp_mode =3D ps_wc; - - switch (dsi->format) { - case MIPI_DSI_FMT_RGB888: - ps_bpp_mode |=3D PACKED_PS_24BIT_RGB888; - break; - case MIPI_DSI_FMT_RGB666: - ps_bpp_mode |=3D PACKED_PS_18BIT_RGB666; - break; - case MIPI_DSI_FMT_RGB666_PACKED: - ps_bpp_mode |=3D LOOSELY_PS_18BIT_RGB666; - break; - case MIPI_DSI_FMT_RGB565: - ps_bpp_mode |=3D PACKED_PS_16BIT_RGB565; - break; - } - - writel(vm->vactive, dsi->regs + DSI_VACT_NL); - writel(ps_bpp_mode, dsi->regs + DSI_PSCTRL); - writel(ps_wc, dsi->regs + DSI_HSTX_CKL_WC); -} - static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi) { u32 tmp_reg; @@ -415,36 +381,40 @@ static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi) writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL); } =20 -static void mtk_dsi_ps_control(struct mtk_dsi *dsi) +static void mtk_dsi_ps_control(struct mtk_dsi *dsi, bool config_vact) { - u32 dsi_tmp_buf_bpp; - u32 tmp_reg; + struct videomode *vm =3D &dsi->vm; + u32 dsi_buf_bpp, ps_wc; + u32 ps_bpp_mode; + + if (dsi->format =3D=3D MIPI_DSI_FMT_RGB565) + dsi_buf_bpp =3D 2; + else + dsi_buf_bpp =3D 3; + + ps_wc =3D vm->hactive * dsi_buf_bpp; + ps_bpp_mode =3D ps_wc; =20 switch (dsi->format) { case MIPI_DSI_FMT_RGB888: - tmp_reg =3D PACKED_PS_24BIT_RGB888; - dsi_tmp_buf_bpp =3D 3; + ps_bpp_mode |=3D PACKED_PS_24BIT_RGB888; break; case MIPI_DSI_FMT_RGB666: - tmp_reg =3D LOOSELY_PS_18BIT_RGB666; - dsi_tmp_buf_bpp =3D 3; + ps_bpp_mode |=3D PACKED_PS_18BIT_RGB666; break; case MIPI_DSI_FMT_RGB666_PACKED: - tmp_reg =3D PACKED_PS_18BIT_RGB666; - dsi_tmp_buf_bpp =3D 3; + ps_bpp_mode |=3D LOOSELY_PS_18BIT_RGB666; break; case MIPI_DSI_FMT_RGB565: - tmp_reg =3D PACKED_PS_16BIT_RGB565; - dsi_tmp_buf_bpp =3D 2; - break; - default: - tmp_reg =3D PACKED_PS_24BIT_RGB888; - dsi_tmp_buf_bpp =3D 3; + ps_bpp_mode |=3D PACKED_PS_16BIT_RGB565; break; } =20 - tmp_reg +=3D dsi->vm.hactive * dsi_tmp_buf_bpp & DSI_PS_WC; - writel(tmp_reg, dsi->regs + DSI_PSCTRL); + if (config_vact) { + writel(vm->vactive, dsi->regs + DSI_VACT_NL); + writel(ps_wc, dsi->regs + DSI_HSTX_CKL_WC); + } + writel(ps_bpp_mode, dsi->regs + DSI_PSCTRL); } =20 static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi) @@ -520,7 +490,7 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi *d= si) writel(horizontal_backporch_byte, dsi->regs + DSI_HBP_WC); writel(horizontal_frontporch_byte, dsi->regs + DSI_HFP_WC); =20 - mtk_dsi_ps_control(dsi); + mtk_dsi_ps_control(dsi, false); } =20 static void mtk_dsi_start(struct mtk_dsi *dsi) @@ -665,7 +635,7 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi) mtk_dsi_reset_engine(dsi); mtk_dsi_phy_timconfig(dsi); =20 - mtk_dsi_ps_control_vact(dsi); + mtk_dsi_ps_control(dsi, true); mtk_dsi_set_vm_cmd(dsi); mtk_dsi_config_vdo_timing(dsi); mtk_dsi_set_interrupt_enable(dsi); --=20 2.40.1 From nobody Mon Feb 9 08:22:32 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 037BAC7EE2C for ; Wed, 24 May 2023 09:34:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229821AbjEXJej (ORCPT ); Wed, 24 May 2023 05:34:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52676 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229575AbjEXJe0 (ORCPT ); Wed, 24 May 2023 05:34:26 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BFCE2A7 for ; Wed, 24 May 2023 02:34:24 -0700 (PDT) Received: from IcarusMOD.eternityproject.eu (unknown [IPv6:2001:b07:2ed:14ed:a962:cd4d:a84:1eab]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id D80A0660572A; Wed, 24 May 2023 10:34:22 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1684920863; bh=6tPVqjGG3ALTeNS4ASDNy61pD3smgtM4CAEyiOJLuOc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iXe0vHth5hK9XGCqsdEQzvtqR130hTrxudQHlDJYSt7mzYwtv2iL0PwtQj0EgLHkU wmmExLBUs7RQ+yOyXdlDNC4cjvFqqFWPw7G61leDsI+7eP9sKAi8YovHo2TLf3WU1r uHRZj9Vci84UU7tgdmtb3PHXeDVru4zhYXLDMIL+GcNExvuAtjh60ynXlZXyAQ3nA+ 1+eJNHRvKTJUrJzXLrkbmQR3G/QN+wHNJLdPWHn71iZpxUYeMdU9YB0LKp7khqugT4 uc/Qr7fWesuJpuD+8FlcedvGFkPvO77K7pDIv6W5mghpO5b8U6wklkcHJGvMjuTJQ7 F5/F3xBrCnD/g== From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@collabora.com Subject: [PATCH v1 3/4] drm/mediatek: dsi: Use bitfield macros where useful Date: Wed, 24 May 2023 11:34:11 +0200 Message-Id: <20230524093412.92211-4-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524093412.92211-1-angelogioacchino.delregno@collabora.com> References: <20230524093412.92211-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Instead of open coding bitshifting for various register fields, use the bitfield macro FIELD_PREP(): this allows to enhance the human readability, decrease likeliness of mistakes (and register field overflowing) and also to simplify the code. The latter is especially seen in mtk_dsi_rxtx_control(), where it was possible to change a switch to a short for loop and to also remove the need to check for maximum DSI lanes =3D=3D 4 thanks to the FIELD_PREP macro masking the value. Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_dsi.c | 95 ++++++++++++++++-------------- 1 file changed, 50 insertions(+), 45 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/= mtk_dsi.c index 97d5b3083057..fbf1c232107d 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -70,16 +70,19 @@ #define DSI_PSCTRL 0x1c #define DSI_PS_WC GENMASK(14, 0) #define DSI_PS_SEL GENMASK(19, 16) -#define PACKED_PS_16BIT_RGB565 (0 << 16) -#define LOOSELY_PS_18BIT_RGB666 (1 << 16) -#define PACKED_PS_18BIT_RGB666 (2 << 16) -#define PACKED_PS_24BIT_RGB888 (3 << 16) +#define PACKED_PS_16BIT_RGB565 0 +#define LOOSELY_PS_18BIT_RGB666 1 +#define PACKED_PS_18BIT_RGB666 2 +#define PACKED_PS_24BIT_RGB888 3 =20 #define DSI_VSA_NL 0x20 #define DSI_VBP_NL 0x24 #define DSI_VFP_NL 0x28 #define DSI_VACT_NL 0x2C +#define VACT_NL GENMASK(14, 0) #define DSI_SIZE_CON 0x38 +#define DSI_HEIGHT GENMASK(30, 16) +#define DSI_WIDTH GENMASK(14, 0) #define DSI_HSA_WC 0x50 #define DSI_HBP_WC 0x54 #define DSI_HFP_WC 0x58 @@ -252,14 +255,23 @@ static void mtk_dsi_phy_timconfig(struct mtk_dsi *dsi) timing->clk_hs_zero =3D timing->clk_hs_trail * 4; timing->clk_hs_exit =3D 2 * timing->clk_hs_trail; =20 - timcon0 =3D timing->lpx | timing->da_hs_prepare << 8 | - timing->da_hs_zero << 16 | timing->da_hs_trail << 24; - timcon1 =3D timing->ta_go | timing->ta_sure << 8 | - timing->ta_get << 16 | timing->da_hs_exit << 24; - timcon2 =3D 1 << 8 | timing->clk_hs_zero << 16 | - timing->clk_hs_trail << 24; - timcon3 =3D timing->clk_hs_prepare | timing->clk_hs_post << 8 | - timing->clk_hs_exit << 16; + timcon0 =3D FIELD_PREP(LPX, timing->lpx) | + FIELD_PREP(HS_PREP, timing->da_hs_prepare) | + FIELD_PREP(HS_ZERO, timing->da_hs_zero) | + FIELD_PREP(HS_TRAIL, timing->da_hs_trail); + + timcon1 =3D FIELD_PREP(TA_GO, timing->ta_go) | + FIELD_PREP(TA_SURE, timing->ta_sure) | + FIELD_PREP(TA_GET, timing->ta_get) | + FIELD_PREP(DA_HS_EXIT, timing->da_hs_exit); + + timcon2 =3D FIELD_PREP(DA_HS_SYNC, 1) | + FIELD_PREP(CLK_ZERO, timing->clk_hs_zero) | + FIELD_PREP(CLK_TRAIL, timing->clk_hs_trail); + + timcon3 =3D FIELD_PREP(CLK_HS_PREP, timing->clk_hs_prepare) | + FIELD_PREP(CLK_HS_POST, timing->clk_hs_post) | + FIELD_PREP(CLK_HS_EXIT, timing->clk_hs_exit); =20 writel(timcon0, dsi->regs + DSI_PHY_TIMECON0); writel(timcon1, dsi->regs + DSI_PHY_TIMECON1); @@ -352,69 +364,61 @@ static void mtk_dsi_set_vm_cmd(struct mtk_dsi *dsi) =20 static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi) { - u32 tmp_reg; + u32 regval, tmp_reg =3D 0; + u8 i; =20 - switch (dsi->lanes) { - case 1: - tmp_reg =3D 1 << 2; - break; - case 2: - tmp_reg =3D 3 << 2; - break; - case 3: - tmp_reg =3D 7 << 2; - break; - case 4: - tmp_reg =3D 0xf << 2; - break; - default: - tmp_reg =3D 0xf << 2; - break; - } + /* Number of DSI lanes (max 4 lanes), each bit enables one DSI lane. */ + for (i =3D 0; i < dsi->lanes; i++) + tmp_reg |=3D BIT(i); + + regval =3D FIELD_PREP(LANE_NUM, tmp_reg); =20 if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) - tmp_reg |=3D HSTX_CKLP_EN; + regval |=3D HSTX_CKLP_EN; =20 if (dsi->mode_flags & MIPI_DSI_MODE_NO_EOT_PACKET) - tmp_reg |=3D DIS_EOT; + regval |=3D DIS_EOT; =20 - writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL); + writel(regval, dsi->regs + DSI_TXRX_CTRL); } =20 static void mtk_dsi_ps_control(struct mtk_dsi *dsi, bool config_vact) { - struct videomode *vm =3D &dsi->vm; - u32 dsi_buf_bpp, ps_wc; - u32 ps_bpp_mode; + u32 dsi_buf_bpp, ps_val, ps_wc, vact_nl; =20 if (dsi->format =3D=3D MIPI_DSI_FMT_RGB565) dsi_buf_bpp =3D 2; else dsi_buf_bpp =3D 3; =20 - ps_wc =3D vm->hactive * dsi_buf_bpp; - ps_bpp_mode =3D ps_wc; + /* Word count */ + ps_wc =3D FIELD_PREP(DSI_PS_WC, dsi->vm.hactive * dsi_buf_bpp); + ps_val =3D ps_wc; =20 + /* Pixel Stream type */ switch (dsi->format) { + default: + /* fallthrough */ case MIPI_DSI_FMT_RGB888: - ps_bpp_mode |=3D PACKED_PS_24BIT_RGB888; + ps_val |=3D FIELD_PREP(DSI_PS_SEL, PACKED_PS_24BIT_RGB888); break; case MIPI_DSI_FMT_RGB666: - ps_bpp_mode |=3D PACKED_PS_18BIT_RGB666; + ps_val |=3D FIELD_PREP(DSI_PS_SEL, PACKED_PS_18BIT_RGB666); break; case MIPI_DSI_FMT_RGB666_PACKED: - ps_bpp_mode |=3D LOOSELY_PS_18BIT_RGB666; + ps_val |=3D FIELD_PREP(DSI_PS_SEL, LOOSELY_PS_18BIT_RGB666); break; case MIPI_DSI_FMT_RGB565: - ps_bpp_mode |=3D PACKED_PS_16BIT_RGB565; + ps_val |=3D FIELD_PREP(DSI_PS_SEL, PACKED_PS_16BIT_RGB565); break; } =20 if (config_vact) { - writel(vm->vactive, dsi->regs + DSI_VACT_NL); + vact_nl =3D FIELD_PREP(VACT_NL, dsi->vm.vactive); + writel(vact_nl, dsi->regs + DSI_VACT_NL); writel(ps_wc, dsi->regs + DSI_HSTX_CKL_WC); } - writel(ps_bpp_mode, dsi->regs + DSI_PSCTRL); + writel(ps_val, dsi->regs + DSI_PSCTRL); } =20 static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi) @@ -441,7 +445,8 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi *d= si) writel(vm->vactive, dsi->regs + DSI_VACT_NL); =20 if (dsi->driver_data->has_size_ctl) - writel(vm->vactive << 16 | vm->hactive, + writel(FIELD_PREP(DSI_HEIGHT, vm->vactive) | + FIELD_PREP(DSI_WIDTH, vm->hactive), dsi->regs + DSI_SIZE_CON); =20 horizontal_sync_active_byte =3D (vm->hsync_len * dsi_tmp_buf_bpp - 10); --=20 2.40.1 From nobody Mon Feb 9 08:22:32 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D0EFC7EE2C for ; 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a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1684920864; bh=2Hsz2EJdS4VRyzmFM2xYr8U8SP0LYcUFtMd/nf9GRoM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AwUM2x1gqbCnMltEdDDWXJkmqEpaWuDHJ9+w6dLrM2HWUxM9b7/McSlJDGk0gUk7c Jbj8aYRiG388X8EhLCNpu8jRi/q7C01Kax39aLm9YxGAUlxq3X59eyp5ftLF6wpmkN roYpXEIL8tf1SdPlC/2pnR87JSOTRAvX0YIrNFMAuAV4BIwIHH1C3CkjBc7R71pRjL S1oMvYK6SpHtYTNFiGC3xCRuZZeygJzKRYyxSS3SgDKwwToq5RSw5WazR/fzPsX21g zOWF+Af22teRcjLBhBXy/T7Sbm+S13nN5IOAPXvDEs0GwPuswuEfW0voB7nrcYH4LM ApX7Kynr53w1g== From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@collabora.com Subject: [PATCH v1 4/4] drm/mediatek: dsi: Replace open-coded instance of HZ_PER_MHZ Date: Wed, 24 May 2023 11:34:12 +0200 Message-Id: <20230524093412.92211-5-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524093412.92211-1-angelogioacchino.delregno@collabora.com> References: <20230524093412.92211-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" In mtk_dsi_phy_timconfig(), we're dividing the `data_rate` variable, expressed in Hz to retrieve a value in MHz: instead of open-coding, use the HZ_PER_MHZ definition, available in linux/units.h. Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_dsi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/= mtk_dsi.c index fbf1c232107d..19e2b042c9d5 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -12,6 +12,7 @@ #include #include #include +#include =20 #include