From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [PATCH 08/12] i2c: tegra: use core to detect 'no zero length' quirk Date: Mon, 23 Jul 2018 22:26:12 +0200 Message-ID: <20180723202617.15230-9-wsa+renesas@sang-engineering.com> References: <20180723202617.15230-1-wsa+renesas@sang-engineering.com> Return-path: In-Reply-To: <20180723202617.15230-1-wsa+renesas@sang-engineering.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-i2c@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Wolfram Sang , Laxman Dewangan , Thierry Reding , Jonathan Hunter , linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-i2c@vger.kernel.org And don't reimplement in the driver. Signed-off-by: Wolfram Sang --- Only build tested. drivers/i2c/busses/i2c-tegra.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 60c8561fbe65..437294ea2f0a 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -684,9 +684,6 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, tegra_i2c_flush_fifos(i2c_dev); - if (msg->len == 0) - return -EINVAL; - i2c_dev->msg_buf = msg->buf; i2c_dev->msg_buf_remaining = msg->len; i2c_dev->msg_err = I2C_ERR_NONE; @@ -831,6 +828,7 @@ static const struct i2c_algorithm tegra_i2c_algo = { /* payload size is only 12 bit */ static const struct i2c_adapter_quirks tegra_i2c_quirks = { + .flags = I2C_AQ_NO_ZERO_LEN, .max_read_len = 4096, .max_write_len = 4096, }; -- 2.11.0