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Fri, 24 Jun 2022 05:06:38 -0700 Received: from [172.23.64.2] (port=47734 helo=xhdvnc102.xilinx.com) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1o4i58-0005MC-LE; Fri, 24 Jun 2022 05:06:38 -0700 Received: by xhdvnc102.xilinx.com (Postfix, from userid 90444) id D8FEB104549; Fri, 24 Jun 2022 17:35:45 +0530 (IST) From: Manikanta Guntupalli To: , , , , , CC: Raviteja Narayanam , Manikanta Guntupalli Subject: [PATCH 05/12] i2c: xiic: Use 'nmsgs' variable instead of repeated_start Date: Fri, 24 Jun 2022 17:35:20 +0530 Message-ID: <1656072327-13628-6-git-send-email-manikanta.guntupalli@xilinx.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1656072327-13628-1-git-send-email-manikanta.guntupalli@xilinx.com> References: <1656072327-13628-1-git-send-email-manikanta.guntupalli@xilinx.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: bdbe2081-03e0-405d-61ae-08da55d9fec9 X-MS-TrafficTypeDiagnostic: DM5PR02MB2810:EE_ X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jun 2022 12:06:39.5971 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bdbe2081-03e0-405d-61ae-08da55d9fec9 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.62.198];Helo=[xsj-pvapexch02.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: SN1NAM02FT0025.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR02MB2810 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220624_050645_736776_92B52869 X-CRM114-Status: GOOD ( 10.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Raviteja Narayanam Remove the redundant repeated_start variable as it is setup at different places, and read at only one place which can be decided by 'nmsgs' variable alone. Signed-off-by: Raviteja Narayanam Signed-off-by: Manikanta Guntupalli --- drivers/i2c/busses/i2c-xiic.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c index 9c3266ac209e..3debb44608cf 100644 --- a/drivers/i2c/busses/i2c-xiic.c +++ b/drivers/i2c/busses/i2c-xiic.c @@ -61,7 +61,6 @@ enum xiic_endian { * @state: See STATE_ * @singlemaster: Indicates bus is single master * @dynamic: Mode of controller - * @repeated_start: Repeated start operation * @prev_msg_tx: Previous message is Tx */ struct xiic_i2c { @@ -80,7 +79,6 @@ struct xiic_i2c { enum xilinx_i2c_state state; bool singlemaster; bool dynamic; - bool repeated_start; bool prev_msg_tx; }; @@ -445,7 +443,7 @@ static void xiic_std_fill_tx_fifo(struct xiic_i2c *i2c) if (len > fifo_space) len = fifo_space; - else if (len && !(i2c->repeated_start)) + else if (len && !(i2c->nmsgs > 1)) len--; while (len--) { @@ -786,7 +784,6 @@ static void xiic_start_recv(struct xiic_i2c *i2c) } /* Check if RSTA should be set */ if (cr & XIIC_CR_MSMS_MASK) { - i2c->repeated_start = true; /* Already a master, RSTA should be set */ xiic_setreg8(i2c, XIIC_CR_REG_OFFSET, (cr | XIIC_CR_REPEATED_START_MASK) & @@ -805,7 +802,6 @@ static void xiic_start_recv(struct xiic_i2c *i2c) /* Write to Control Register,to start transaction in Rx mode */ if ((cr & XIIC_CR_MSMS_MASK) == 0) { - i2c->repeated_start = false; xiic_setreg8(i2c, XIIC_CR_REG_OFFSET, (cr | XIIC_CR_MSMS_MASK) & ~(XIIC_CR_DIR_IS_TX_MASK)); @@ -879,7 +875,6 @@ static void xiic_start_send(struct xiic_i2c *i2c) /* Check if RSTA should be set */ cr = xiic_getreg8(i2c, XIIC_CR_REG_OFFSET); if (cr & XIIC_CR_MSMS_MASK) { - i2c->repeated_start = true; /* Already a master, RSTA should be set */ xiic_setreg8(i2c, XIIC_CR_REG_OFFSET, (cr | XIIC_CR_REPEATED_START_MASK | @@ -895,7 +890,6 @@ static void xiic_start_send(struct xiic_i2c *i2c) xiic_std_fill_tx_fifo(i2c); if ((cr & XIIC_CR_MSMS_MASK) == 0) { - i2c->repeated_start = false; /* Start Tx by writing to CR */ cr = xiic_getreg8(i2c, XIIC_CR_REG_OFFSET);