From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-i2c@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] media: i2c: adv7842: remove open coded version of SMBus block write
Date: Tue, 19 Jan 2021 10:39:08 +0100 [thread overview]
Message-ID: <20210119093912.1838-2-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20210119093912.1838-1-wsa+renesas@sang-engineering.com>
The version here is identical to the one in the I2C core, so use the
latter version directly.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
Changes since RFC:
* skip define, use i2c_smbus_write_i2c_block_data directly
drivers/media/i2c/adv7842.c | 24 +++++-------------------
1 file changed, 5 insertions(+), 19 deletions(-)
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index 0855f648416d..e0629d5ef17b 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -343,20 +343,6 @@ static void adv_smbus_write_byte_no_check(struct i2c_client *client,
I2C_SMBUS_BYTE_DATA, &data);
}
-static s32 adv_smbus_write_i2c_block_data(struct i2c_client *client,
- u8 command, unsigned length, const u8 *values)
-{
- union i2c_smbus_data data;
-
- if (length > I2C_SMBUS_BLOCK_MAX)
- length = I2C_SMBUS_BLOCK_MAX;
- data.block[0] = length;
- memcpy(data.block + 1, values, length);
- return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
- I2C_SMBUS_WRITE, command,
- I2C_SMBUS_I2C_BLOCK_DATA, &data);
-}
-
/* ----------------------------------------------------------------------- */
static inline int io_read(struct v4l2_subdev *sd, u8 reg)
@@ -741,7 +727,7 @@ static int edid_write_vga_segment(struct v4l2_subdev *sd)
rep_write_and_or(sd, 0x77, 0xef, 0x10);
for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX)
- err = adv_smbus_write_i2c_block_data(state->i2c_edid, i,
+ err = i2c_smbus_write_i2c_block_data(state->i2c_edid, i,
I2C_SMBUS_BLOCK_MAX, val + i);
if (err)
return err;
@@ -807,7 +793,7 @@ static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port)
rep_write_and_or(sd, 0x77, 0xef, 0x00);
for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX)
- err = adv_smbus_write_i2c_block_data(state->i2c_edid, i,
+ err = i2c_smbus_write_i2c_block_data(state->i2c_edid, i,
I2C_SMBUS_BLOCK_MAX, edid + i);
if (err)
return err;
@@ -1079,7 +1065,7 @@ static void configure_custom_video_timings(struct v4l2_subdev *sd,
/* Should only be set in auto-graphics mode [REF_02, p. 91-92] */
/* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */
/* IO-map reg. 0x16 and 0x17 should be written in sequence */
- if (adv_smbus_write_i2c_block_data(client, 0x16, 2, pll)) {
+ if (i2c_smbus_write_i2c_block_data(client, 0x16, 2, pll)) {
v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n");
break;
}
@@ -1135,7 +1121,7 @@ static void adv7842_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 off
offset_buf[3] = offset_c & 0x0ff;
/* Registers must be written in this order with no i2c access in between */
- if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x77, 4, offset_buf))
+ if (i2c_smbus_write_i2c_block_data(state->i2c_cp, 0x77, 4, offset_buf))
v4l2_err(sd, "%s: i2c error writing to CP reg 0x77, 0x78, 0x79, 0x7a\n", __func__);
}
@@ -1164,7 +1150,7 @@ static void adv7842_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a,
gain_buf[3] = ((gain_c & 0x0ff));
/* Registers must be written in this order with no i2c access in between */
- if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x73, 4, gain_buf))
+ if (i2c_smbus_write_i2c_block_data(state->i2c_cp, 0x73, 4, gain_buf))
v4l2_err(sd, "%s: i2c error writing to CP reg 0x73, 0x74, 0x75, 0x76\n", __func__);
}
--
2.29.2
next prev parent reply other threads:[~2021-01-19 22:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-19 9:39 [PATCH 0/3] treewide: remove open coded SMBus block transfers Wolfram Sang
2021-01-19 9:39 ` Wolfram Sang [this message]
2021-01-25 9:56 ` [PATCH 1/3] media: i2c: adv7842: remove open coded version of SMBus block write Hans Verkuil
2021-01-19 9:39 ` [PATCH 2/3] media: i2c: adv7511: remove open coded version of SMBus block read Wolfram Sang
2021-01-25 10:05 ` Hans Verkuil
2021-01-27 10:18 ` Wolfram Sang
2021-01-19 9:39 ` [PATCH 3/3] ipmi: remove open coded version of SMBus block write Wolfram Sang
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