From: Matt Johnston <matt@codeconstruct.com.au>
To: unlisted-recipients:; (no To-header on input)
Cc: Zev Weiss <zev@bewilderbeest.net>, Wolfram Sang <wsa@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
"David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Brendan Higgins <brendanhiggins@google.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Joel Stanley <joel@jms.id.au>, Andrew Jeffery <andrew@aj.id.au>,
Avi Fishman <avifishman70@gmail.com>,
Tomer Maimon <tmaimon77@gmail.com>,
Tali Perry <tali.perry1@gmail.com>,
Patrick Venture <venture@google.com>,
Nancy Yuen <yuenn@google.com>,
Benjamin Fair <benjaminfair@google.com>,
Jeremy Kerr <jk@codeconstruct.com.au>,
linux-i2c@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH net-next 4/6] i2c: npcm7xx: Allow 255 byte block SMBus transfers
Date: Mon, 1 Nov 2021 17:04:03 +0800 [thread overview]
Message-ID: <20211101090405.1405987-5-matt@codeconstruct.com.au> (raw)
In-Reply-To: <20211101090405.1405987-1-matt@codeconstruct.com.au>
255 byte support has been tested on a npcm750 board
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
---
drivers/i2c/busses/i2c-npcm7xx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-npcm7xx.c b/drivers/i2c/busses/i2c-npcm7xx.c
index 2ad166355ec9..6d60f65add85 100644
--- a/drivers/i2c/busses/i2c-npcm7xx.c
+++ b/drivers/i2c/busses/i2c-npcm7xx.c
@@ -1399,7 +1399,7 @@ static void npcm_i2c_irq_master_handler_read(struct npcm_i2c *bus)
if (bus->read_block_use) {
/* first byte in block protocol is the size: */
data = npcm_i2c_rd_byte(bus);
- data = clamp_val(data, 1, I2C_SMBUS_BLOCK_MAX);
+ data = clamp_val(data, 1, I2C_SMBUS_V3_BLOCK_MAX);
bus->rd_size = data + block_extra_bytes_size;
bus->rd_buf[bus->rd_ind++] = data;
@@ -2187,6 +2187,7 @@ static u32 npcm_i2c_functionality(struct i2c_adapter *adap)
I2C_FUNC_SMBUS_EMUL |
I2C_FUNC_SMBUS_BLOCK_DATA |
I2C_FUNC_SMBUS_PEC |
+ I2C_FUNC_SMBUS_V3_BLOCK |
I2C_FUNC_SLAVE;
}
--
2.32.0
next prev parent reply other threads:[~2021-11-01 9:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-01 9:03 [PATCH net-next 0/6] MCTP I2C driver Matt Johnston
2021-11-01 9:04 ` [PATCH net-next 1/6] i2c: core: Allow 255 byte transfers for SMBus 3.x Matt Johnston
2021-11-01 9:04 ` [PATCH net-next 2/6] i2c: dev: Handle 255 byte blocks for i2c ioctl Matt Johnston
2021-11-01 9:04 ` [PATCH net-next 3/6] i2c: aspeed: Allow 255 byte block transfers Matt Johnston
2021-11-01 9:04 ` Matt Johnston [this message]
2021-11-01 9:04 ` [PATCH net-next 5/6] dt-bindings: net: New binding mctp-i2c-controller Matt Johnston
2021-11-01 9:04 ` [PATCH net-next 6/6] mctp i2c: MCTP I2C binding driver Matt Johnston
2021-11-01 13:22 ` Randy Dunlap
2021-11-02 6:48 ` Matt Johnston
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