From patchwork Thu Nov 11 01:55:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Johnston X-Patchwork-Id: 1553708 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4HqPvn6qP6z9s1l for ; Thu, 11 Nov 2021 12:56:21 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233258AbhKKB7J (ORCPT ); Wed, 10 Nov 2021 20:59:09 -0500 Received: from pi.codeconstruct.com.au ([203.29.241.158]:48590 "EHLO codeconstruct.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231254AbhKKB7I (ORCPT ); Wed, 10 Nov 2021 20:59:08 -0500 Received: by codeconstruct.com.au (Postfix, from userid 10001) id 94B4820294; Thu, 11 Nov 2021 09:56:18 +0800 (AWST) From: Matt Johnston Cc: Zev Weiss , Wolfram Sang , Rob Herring , "David S . Miller" , Jakub Kicinski , Brendan Higgins , Benjamin Herrenschmidt , Joel Stanley , Andrew Jeffery , Avi Fishman , Tomer Maimon , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , Jeremy Kerr , linux-i2c@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH net-next v2 3/6] i2c: aspeed: Allow 255 byte block transfers Date: Thu, 11 Nov 2021 09:55:45 +0800 Message-Id: <20211111015548.2892849-4-matt@codeconstruct.com.au> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211111015548.2892849-1-matt@codeconstruct.com.au> References: <20211111015548.2892849-1-matt@codeconstruct.com.au> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org 255 byte transfers have been tested on an AST2500 board Signed-off-by: Matt Johnston Reviewed-by: Brendan Higgins --- drivers/i2c/busses/i2c-aspeed.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c index 67e8b97c0c95..7395f3702fae 100644 --- a/drivers/i2c/busses/i2c-aspeed.c +++ b/drivers/i2c/busses/i2c-aspeed.c @@ -533,7 +533,7 @@ static u32 aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus, u32 irq_status) msg->buf[bus->buf_index++] = recv_byte; if (msg->flags & I2C_M_RECV_LEN) { - if (unlikely(recv_byte > I2C_SMBUS_BLOCK_MAX)) { + if (unlikely(recv_byte > I2C_SMBUS_V3_BLOCK_MAX)) { bus->cmd_err = -EPROTO; aspeed_i2c_do_stop(bus); goto out_no_complete; @@ -718,7 +718,8 @@ static int aspeed_i2c_master_xfer(struct i2c_adapter *adap, static u32 aspeed_i2c_functionality(struct i2c_adapter *adap) { - return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_SMBUS_BLOCK_DATA; + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | + I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_V3_BLOCK; } #if IS_ENABLED(CONFIG_I2C_SLAVE)