From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1BB6DC3A5A8 for ; Wed, 4 Sep 2019 11:57:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E841222DBF for ; Wed, 4 Sep 2019 11:57:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567598241; bh=+NE03vk26gxXt4brBoR8Ly4u6W2a1FR4Kab3VIiTjZA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=P83atfz76f8I29Eu+336h76/UngFOxUVv6cJZbKAEcXfVS3QXNXU1a0X4Qlr4G5gU W3l1QICN0hbb1AkKuVkH9k0Tg/TwEEJYTSG94WvLWT3e5REHo/b6/h+R+e94myF5Lr +97hUZlzQIO+KmxoeHfqTChovJhyCr3OEpuHjkbU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729897AbfIDL5T (ORCPT ); Wed, 4 Sep 2019 07:57:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:38442 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729834AbfIDL5T (ORCPT ); Wed, 4 Sep 2019 07:57:19 -0400 Received: from localhost (unknown [122.182.201.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 645FE22CF5; Wed, 4 Sep 2019 11:57:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567598238; bh=+NE03vk26gxXt4brBoR8Ly4u6W2a1FR4Kab3VIiTjZA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=afyuI5uzMEDH6a4KE6v9ld04B/V44tuOtu0HDeP2s00PF2PgdW4svvMA0PpojB91x 4AXefCNj5lzT9UaF+iF1IHuVdFhhIqVZxC8HH/SKPvqleIGzM4td2zoVemL9aa2d2r DoiZ5w4GmcZneXcnQ3uFLqupuL525W6wc7r/epFA= Date: Wed, 4 Sep 2019 17:26:09 +0530 From: Vinod Koul To: Lee Jones Cc: 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, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] i2c: qcom-geni: Provide an option to select FIFO processing Message-ID: <20190904115609.GW2672@vkoul-mobl> References: <20190904113613.14997-1-lee.jones@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190904113613.14997-1-lee.jones@linaro.org> User-Agent: Mutt/1.12.0 (2019-05-25) Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 04-09-19, 12:36, Lee Jones wrote: > Signed-off-by: Lee Jones > --- > 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")) Where is this property documented, I dont see anything in linux-next for today > + 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 > -- > 2.17.1 -- ~Vinod