From patchwork Mon Jan 29 09:23:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 13535273 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 59E9FC47422 for ; Mon, 29 Jan 2024 09:25:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=BHJILnIFzpVDtHjzJpuhj+vcup5joaBLgt1vOhEGnBQ=; b=iRnzPUm7JCMTZh Nw1AeKC/XrszWR4+0i/HLcuprJRTarKAtwtSjtf7B8QvqB08lcZEIdj49o6yA1wENDgulFmute77c VGQ0sFnm17rqBJGrIAr35Ecp22CHL8kgOsD4J8kfx+yZFAx+xM3asRUFbljhkvh5yiFZAZZh1tmFV ma+rB03eChBkdkDKtfAL38qcsSAgIdamupNgjJ0SrN7miKC9OFYahBWF0auil3VxgSg/0MHMBUwJ9 VMD0++jfxg6cC/EmMBd0uaiiOI3HbOx+K0ARuA9NP0i/w4gnJ7UMPveKttt5V9qL3etlfKzvGuu7k KxyFxXePkZZx6aWFNqtg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUNsp-0000000BzSD-2HOV; Mon, 29 Jan 2024 09:24:51 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUNsm-0000000BzQq-35jP for linux-arm-kernel@lists.infradead.org; Mon, 29 Jan 2024 09:24:50 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1706520288; x=1738056288; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=uPW5WaZeYCNjpAiQXQ6dsyN5lBlDGiOxHHcb3Werqlg=; b=WE0xR3POpjmFHJ6upvRK/mYjLYFrZ8BfNkkzqHCOiKGeTnPTho/bj77O 31SzttSfeIaOM1ayvBYaFjsqYr+lFvW0KCVekZkpJlMnX+fLYuNGtIdXY ZWrjYyx+kK1CbGW2E0sElaj7D9luDirIrRg5FdMrvIFrFEJ822rpmpfO2 aBPF0D6MmoX2W/YweuUELzXrxG88dok2KFKEovfFv7D5M+ueP+ZBX9Wcc ncmg/LokKgZY8R/yggJ3VVwA6cVW5U498ldaUXkJCyfl1WjN2WygOD8ui 0eZSa2HRBBTP4pU3MLHGd2x4ITCyYe/O5rKtlsHdX6ajYIQ9KVVA3vUk+ A==; X-CSE-ConnectionGUID: yiykArgaTK2rjSxwUhiB8w== X-CSE-MsgGUID: eTsSxssXSN2wWUTre263AA== X-IronPort-AV: E=Sophos;i="6.05,226,1701154800"; d="scan'208";a="15433321" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 29 Jan 2024 02:24:46 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) 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 15.1.2507.35; Mon, 29 Jan 2024 02:24:11 -0700 Received: from che-lt-i67131.microchip.com (10.10.85.11) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Mon, 29 Jan 2024 02:24:04 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , CC: , , , , , , , Manikandan Muralidharan Subject: [PATCH RESEND v7 0/7] Add support for XLCDC to sam9x7 SoC family. Date: Mon, 29 Jan 2024 14:53:12 +0530 Message-ID: <20240129092319.199365-1-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240129_012449_049209_F6DBB148 X-CRM114-Status: GOOD ( 11.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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(-)