From patchwork Thu Oct 5 09:29:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 13409890 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 BBCAEE82CDE for ; Thu, 5 Oct 2023 09:30:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 02CBE10E156; Thu, 5 Oct 2023 09:30:17 +0000 (UTC) Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by gabe.freedesktop.org (Postfix) with ESMTPS id EDE4E10E156 for ; Thu, 5 Oct 2023 09:30:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1696498215; x=1728034215; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=uPW5WaZeYCNjpAiQXQ6dsyN5lBlDGiOxHHcb3Werqlg=; b=emC626pGduOUkgoUvhprcnEzdbH5SAM3Y+WiaXihFgm0JPKoll9ndQQ4 wf+X6b6E8ylBbmiaL3VooENxCAWmExW05EYMAcrP0mIhOOmfuFgiferqt C7hBEBsrbVjosbYNeRIw5rEUTTlr49va54shFSBRsUgO1uC99jF9mkbQe DM1eXZglcP/gtLQc9wwfnCZSaD78Svi5z2f7OhRT87aUx8lHKYsgpELyB 2JFFVAtGG7LTkZONDi6IiEFyVR3d4JRxKcwtiki6ESqodGR075ehmE7M7 3XD2CIfJoocyZFZ7YH1y1Why6SfsBr9wsAtcCCF06H5Kvrdy8wY1rOqCa Q==; X-CSE-ConnectionGUID: pNqRUMmsQ46P00UoeOunFg== X-CSE-MsgGUID: 4CCEQRxATAWuAUPjZprfag== X-ThreatScanner-Verdict: Negative X-IronPort-AV: E=Sophos;i="6.03,202,1694761200"; d="scan'208";a="8182674" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 05 Oct 2023 02:30:14 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Thu, 5 Oct 2023 02:30:04 -0700 Received: from che-lt-i67131.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Thu, 5 Oct 2023 02:29:58 -0700 From: Manikandan Muralidharan To: , , , , , , , , , Subject: [PATCH v7 0/7] Add support for XLCDC to sam9x7 SoC family. Date: Thu, 5 Oct 2023 14:59:47 +0530 Message-ID: <20231005092954.881059-1-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 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: , Cc: Balakrishnan.S@microchip.com, Nayabbasha.Sayed@microchip.com, Balamanikandan.Gunasundar@microchip.com, Manikandan Muralidharan , Varshini.Rajendran@microchip.com, Dharma.B@microchip.com, Durai.ManickamKR@microchip.com, Hari.PrasathGE@microchip.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This patch series aims to add support for XLCDC IP of sam9x7 SoC family to the DRM subsystem.XLCDC IP has additional registers and new configuration bits compared to the existing register set of HLCDC IP. The new compatible string "microchip,sam9x75-xlcdc" is defined for sam9x75 variant of the sam9x7 SoC family.The is_xlcdc flag under driver data and IP specific driver ops helps to differentiate the XLCDC and existing HLCDC code within the same driver. changes in v7: * LCDC IP driver ops functions are declared static and its declaration are removed. changes in v6: * Fixed Cosmetic defects. * Added comments for readability. changes in v5: * return value of regmap_read_poll_timeout is checked in failure case. * HLCDC and XLCDC specific driver functions are now invoked using its IP specific driver ops w/o the need of checking is_xlcdc flag. * Removed empty spaces and blank lines. changes in v4: * fixed kernel warnings reported by kernel test robot. changes in v3: * Removed de-referencing the value of is_xlcdc flag multiple times in a single function. * Removed cpu_relax() call when using regmap_read_poll_timeout. * Updated xfactor and yfactor equations using shift operators * Defined CSC co-efficients in an array for code readability. changes in v2: * Change the driver compatible name from "microchip,sam9x7-xlcdc" to "microchip,sam9x75-xlcdc". * Move is_xlcdc flag to driver data. * Remove unsed Macro definitions. * Add co-developed-bys tags * Replace regmap_read() with regmap_read_poll_timeout() call * Split code into two helpers for code readablitity. Durai Manickam KR (1): drm: atmel-hlcdc: Define SAM9X7 SoC XLCDC specific registers Manikandan Muralidharan (6): drm: atmel-hlcdc: add flag and driver ops to differentiate XLCDC and HLCDC IP drm: atmel-hlcdc: add LCD controller layer definition for sam9x75 drm: atmel_hlcdc: Add support for XLCDC in atmel LCD driver drm: atmel-hlcdc: add DPI mode support for XLCDC drm: atmel-hlcdc: add vertical and horizontal scaling support for XLCDC drm: atmel-hlcdc: add support for DSI output formats .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 175 +++++++-- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 105 +++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 86 ++++ .../gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 369 +++++++++++++++--- include/linux/mfd/atmel-hlcdc.h | 10 + 5 files changed, 647 insertions(+), 98 deletions(-)