| Message ID | 20220513170715.43475-7-eajames@linux.ibm.com |
|---|---|
| State | New |
| Headers | show
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Fri, 13 May 2022 17:07:19 +0000 (GMT) From: Eddie James <eajames@linux.ibm.com> To: openbmc@lists.ozlabs.org Subject: [PATCH u-boot v2019.04-aspeed-openbmc v2 6/9] i2c: ast_i2c: Remove SCL direct drive mode Date: Fri, 13 May 2022 12:07:12 -0500 Message-Id: <20220513170715.43475-7-eajames@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220513170715.43475-1-eajames@linux.ibm.com> References: <20220513170715.43475-1-eajames@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: ns0TSMjm2ywwLxSLJ_8xDo33oNVoQ1A5 X-Proofpoint-GUID: ns0TSMjm2ywwLxSLJ_8xDo33oNVoQ1A5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-05-13_09,2022-05-13_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 malwarescore=0 suspectscore=0 adultscore=0 bulkscore=0 mlxlogscore=901 clxscore=1015 priorityscore=1501 phishscore=0 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2205130073 X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC <openbmc.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/openbmc>, <mailto:openbmc-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/openbmc/> List-Post: <mailto:openbmc@lists.ozlabs.org> List-Help: <mailto:openbmc-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/openbmc>, <mailto:openbmc-request@lists.ozlabs.org?subject=subscribe> Cc: cjengel@us.ibm.com, joel@jms.id.au Errors-To: openbmc-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "openbmc" <openbmc-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> |
| Series |
ast2600: Add I2C TPMv2 driver
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expand
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diff --git a/drivers/i2c/ast_i2c.c b/drivers/i2c/ast_i2c.c index bbc32d6cdb..13420ade84 100644 --- a/drivers/i2c/ast_i2c.c +++ b/drivers/i2c/ast_i2c.c @@ -73,7 +73,7 @@ static void ast_i2c_init_bus(struct udevice *dev) /* Enable Master Mode. Assuming single-master */ writel(I2CD_MASTER_EN | I2CD_M_SDA_LOCK_EN - | I2CD_MULTI_MASTER_DIS | I2CD_M_SCL_DRIVE_EN, + | I2CD_MULTI_MASTER_DIS, &priv->regs->fcr); /* Enable Interrupts */ writel(I2CD_INTR_TX_ACK
SCL direct drive mode prevents communication with devices that do clock stretching, so disable. The Linux driver doesn't use this mode, and the engine can handle clock stretching. Signed-off-by: Eddie James <eajames@linux.ibm.com> --- drivers/i2c/ast_i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)