linux-kernel - [PATCH 08/12] i2c: xiic: Remove interrupt enable/disable in Rx path

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Message-ID: <1656072327-13628-9-git-send-email-manikanta.guntupalli@xilinx.com>
Date:   Fri, 24 Jun 2022 17:35:23 +0530
From:   Manikanta Guntupalli <manikanta.guntupalli@...inx.com>
To:     <michal.simek@...inx.com>, <michal.simek@....com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-i2c@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <git@....com>
CC:     Raviteja Narayanam <raviteja.narayanam@...inx.com>,
        Manikanta Guntupalli <manikanta.guntupalli@...inx.com>
Subject: [PATCH 08/12] i2c: xiic: Remove interrupt enable/disable in Rx path

From: Raviteja Narayanam <raviteja.narayanam@...inx.com>

As the 'DYNAMIC_MODE_READ_BROKEN_BIT' quirk is added in the driver,
we no longer enter dynamic mode for the effected IP versions.
So, remove local_irq_save/local_irq_restore APIs from driver.

Signed-off-by: Raviteja Narayanam <raviteja.narayanam@...inx.com>
Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli@...inx.com>
---
 drivers/i2c/busses/i2c-xiic.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 74cd50478694..720aa671f74b 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -776,7 +776,6 @@ static void xiic_start_recv(struct xiic_i2c *i2c)
 	u16 rx_watermark;
 	u8 cr = 0, rfd_set = 0;
 	struct i2c_msg *msg = i2c->rx_msg = i2c->tx_msg;
-	unsigned long flags;
 
 	dev_dbg(i2c->adap.dev.parent, "%s entry, ISR: 0x%x, CR: 0x%x\n",
 		__func__, xiic_getreg32(i2c, XIIC_IISR_OFFSET),
@@ -808,7 +807,6 @@ static void xiic_start_recv(struct xiic_i2c *i2c)
 
 		xiic_setreg8(i2c, XIIC_RFD_REG_OFFSET, bytes);
 
-		local_irq_save(flags);
 		if (!(msg->flags & I2C_M_NOSTART))
 			/* write the address */
 			xiic_setreg16(i2c, XIIC_DTR_REG_OFFSET,
@@ -822,7 +820,6 @@ static void xiic_start_recv(struct xiic_i2c *i2c)
 		val |= msg->len;
 
 		xiic_setreg16(i2c, XIIC_DTR_REG_OFFSET, val);
-		local_irq_restore(flags);
 	} else {
 		/*
 		 * If previous message is Tx, make sure that Tx FIFO is empty
-- 
2.25.1