From patchwork Fri Dec 15 11:47:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thangaraj Samynathan X-Patchwork-Id: 755397 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2532224B52; Fri, 15 Dec 2023 11:50:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="GRXOU8th" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1702641025; x=1734177025; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=FONo09cctWbjCQrHoqxg4nvLF1hyPf6cr+OVaLaPo3w=; b=GRXOU8thqW2r2+PCzfx00o5Ajp1VciNT4rzVdpCoSrPHS6zJCGI7lflc tLetrxqphhB7gPLpRlH8x6TyQ68l4xwsSeNHODwZKZI5Nzv1mqJnsCTSZ j7lYyBly3n3wrUAy6PANmfK+I2qF+MmF73rOovcNmTTW4bJum1aLZBbnM Ih2ZoKxSQAPWg5rzPqXm9nKyTw+9LBwVskWEyrTBFW4AB+tGbC9UzCe3z uSZnZrKZT2DMna32E5vahYC9fLd8mECTaruWYSNnHOHo4NiYqRoaTMRtF Ck0gkYH+h25RbVKzBLUGLI4RjO7V5zRBgyal7UpZ8Kvuhz5drMZSDkY1D A==; X-CSE-ConnectionGUID: ti+VcWCIQUWdJNIEI/3IvQ== X-CSE-MsgGUID: S4VLZutARaupzCMZFPu0Yg== X-ThreatScanner-Verdict: Negative X-IronPort-AV: E=Sophos;i="6.04,278,1695711600"; d="scan'208";a="14317219" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 15 Dec 2023 04:50:19 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 15 Dec 2023 04:49:59 -0700 Received: from che-dk-ungapp03lx.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Fri, 15 Dec 2023 04:49:57 -0700 From: Thangaraj Samynathan To: CC: , , , , , , Subject: [PATCH SPI for-next 0/3] DMA Support for SPI in PCI1xxxx Date: Fri, 15 Dec 2023 17:17:45 +0530 Message-ID: <20231215114748.152319-1-thangaraj.s@microchip.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This series of patches is to add DMA Support that improves SPI Performance in PCI1xxxx. With DMA Support in 20MHz clock, the performance is improved from 6Mbps to 17Mbps. Thangaraj Samynathan (3): spi: mchp-pci1xxxx: Add support for DMA in SPI spi: mchp-pci1xxxx: DMA Read support for copying data into SPI Buf spi: mchp-pci1xxxx: DMA Write Support for copying data from SPI Buf drivers/spi/spi-pci1xxxx.c | 441 +++++++++++++++++++++++++++++++++++-- 1 file changed, 419 insertions(+), 22 deletions(-)