From patchwork Wed Sep 4 11:36:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Jones X-Patchwork-Id: 11129905 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1CA2F112C for ; Wed, 4 Sep 2019 11:36:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E01E320820 for ; Wed, 4 Sep 2019 11:36:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="h6B+fLtp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727156AbfIDLgT (ORCPT ); Wed, 4 Sep 2019 07:36:19 -0400 Received: from mail-wm1-f50.google.com ([209.85.128.50]:34939 "EHLO mail-wm1-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725911AbfIDLgT (ORCPT ); Wed, 4 Sep 2019 07:36:19 -0400 Received: by mail-wm1-f50.google.com with SMTP id n10so3305401wmj.0 for ; Wed, 04 Sep 2019 04:36:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=6n1x8bAGsyaVUn7RCRrZd6pcUeSbUTUlFO1sD7W+jdE=; b=h6B+fLtpSONhSBxg/IJPOu8ZrT+zjGIRlQ9PafT3Q+SZuugLTW6Ms+HeiIs199by73 /y+NK2ynYGk5Q1wiraznmv2S5N8Lz0qJIog53PZqHuAG5OFvBaAac4XnhbVk0k+0NGWi IUHCcEYDqbyRKZZp2QJ8hxBdm7rxewdpV32Cn9jFMFQB3McBI0q5ZjtIQTG3kzNunl+J wd5cfQNbtsC+bA9G4OAwDPM+UzwfqTBSFiXdOXS2MFlj5hQCg4AYNsTJ3GCer+YjaTp7 TYsyWv5RGnBfWrv689OK75VW6sakK4tDIkVN+13SPqxEk7zGNRbD7F3Sp3yWfKoTo0bU rcdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=6n1x8bAGsyaVUn7RCRrZd6pcUeSbUTUlFO1sD7W+jdE=; b=GE5kNZkMks7cYnFopicbNQTkIWaWUsaThxUo87m9Lfgn3N5WIb6o2cplOPskED58qG 0f1EbOtn2zjUVIgGh4IsVnwESTd2wEErsnlXOI3RASTq64j4zHPd0MI8Ol0aHyLSgZbQ WC2pUXOjvrePq4zrzjuxLdWOaOAFgKHlHJsEvcvvqMRFQfQJwgE0rFayyaUB8a0kVO/D dv3NxxOYujinCBsOAn++REWbd984KQotG3rVCMVLOgLi4/N5wZh7nQV4sBRrE2KQF+Z8 bbGQqo78TEvR7X8/OCjWfrkfNXsn53fpqtJh83jKNx+otLKuCJujXWpIgAonUOGciEY3 G+MA== X-Gm-Message-State: APjAAAU5zrn+C6I9ZuVM2usQqocsKR1oUqn5mot8LvZk3Zoec1jA+24O 2xjzNgbqiCeiNkC3JeEJZLpvrw== X-Google-Smtp-Source: APXvYqzrtOfOuNj6frgLWfYGsNvZUObicbYASkZ26jqaCnscUAcwcq1/Gwrc40q+OpB0xe98gVVB7A== X-Received: by 2002:a1c:20cf:: with SMTP id g198mr4199256wmg.66.1567596977066; Wed, 04 Sep 2019 04:36:17 -0700 (PDT) Received: from localhost.localdomain ([95.147.198.36]) by smtp.gmail.com with ESMTPSA id d9sm10823933wrc.39.2019.09.04.04.36.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Sep 2019 04:36:16 -0700 (PDT) From: Lee Jones To: alokc@codeaurora.org, agross@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, bjorn.andersson@linaro.org, linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Lee Jones Subject: [PATCH 1/2] i2c: qcom-geni: Provide an option to select FIFO processing Date: Wed, 4 Sep 2019 12:36:12 +0100 Message-Id: <20190904113613.14997-1-lee.jones@linaro.org> X-Mailer: git-send-email 2.17.1 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Signed-off-by: Lee Jones Reviewed-by: Vinod Koul --- drivers/i2c/busses/i2c-qcom-geni.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index a89bfce5388e..dfdbce067827 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -353,13 +353,16 @@ static void geni_i2c_tx_fsm_rst(struct geni_i2c_dev *gi2c) static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, u32 m_param) { + struct device_node *np = gi2c->se.dev->of_node; dma_addr_t rx_dma; unsigned long time_left; - void *dma_buf; + void *dma_buf = NULL; struct geni_se *se = &gi2c->se; size_t len = msg->len; - dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (!of_property_read_bool(np, "qcom,geni-se-fifo")) + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) geni_se_select_mode(se, GENI_SE_DMA); else @@ -392,13 +395,16 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, u32 m_param) { + struct device_node *np = gi2c->se.dev->of_node; dma_addr_t tx_dma; unsigned long time_left; - void *dma_buf; + void *dma_buf = NULL; struct geni_se *se = &gi2c->se; size_t len = msg->len; - dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (!of_property_read_bool(np, "qcom,geni-se-fifo")) + dma_buf = i2c_get_dma_safe_msg_buf(msg, 32); + if (dma_buf) geni_se_select_mode(se, GENI_SE_DMA); else