lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Sun,  3 May 2020 10:22:02 -0700
From:   Jonathan Bakker <xc-racer2@...e.ca>
To:     jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, robh+dt@...nel.org, linus.walleij@...aro.org,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, dmitry.torokhov@...il.com,
        kstewart@...uxfoundation.org, gregkh@...uxfoundation.org,
        tglx@...utronix.de, linux-input@...r.kernel.org
Cc:     Jonathan Bakker <xc-racer2@...e.ca>
Subject: [PATCH 1/5] iio: accel: bma180: Prepare for different reset values

Some variants of the bma180 (eg bma023) have different reset
values.  In preparation for adding support for them, factor
out the reset value into the chip specific data.

Signed-off-by: Jonathan Bakker <xc-racer2@...e.ca>
---
 drivers/iio/accel/bma180.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index fcd91d5f05fd..75440dd83ec4 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -57,7 +57,7 @@ struct bma180_part_info {
 	u8 power_reg, power_mask, lowpower_val;
 	u8 int_enable_reg, int_enable_mask;
 	u8 int_map_reg, int_enable_dataready_int1_mask;
-	u8 softreset_reg;
+	u8 softreset_reg, softreset_val;
 
 	int (*chip_config)(struct bma180_data *data);
 	void (*chip_disable)(struct bma180_data *data);
@@ -319,7 +319,8 @@ static int bma180_set_pmode(struct bma180_data *data, bool mode)
 static int bma180_soft_reset(struct bma180_data *data)
 {
 	int ret = i2c_smbus_write_byte_data(data->client,
-		data->part_info->softreset_reg, BMA180_RESET_VAL);
+		data->part_info->softreset_reg,
+		data->part_info->softreset_val);
 
 	if (ret)
 		dev_err(&data->client->dev, "failed to reset the chip\n");
@@ -693,6 +694,7 @@ static const struct bma180_part_info bma180_part_info[] = {
 		.int_enable_reg = BMA180_CTRL_REG3,
 		.int_enable_mask = BMA180_NEW_DATA_INT,
 		.softreset_reg = BMA180_RESET,
+		.softreset_val = BMA180_RESET_VAL,
 		.chip_config = bma180_chip_config,
 		.chip_disable = bma180_chip_disable,
 	},
@@ -721,6 +723,7 @@ static const struct bma180_part_info bma180_part_info[] = {
 		.int_map_reg = BMA250_INT_MAP_REG,
 		.int_enable_dataready_int1_mask = BMA250_INT1_DATA_MASK,
 		.softreset_reg = BMA250_RESET_REG,
+		.softreset_val = BMA180_RESET_VAL,
 		.chip_config = bma25x_chip_config,
 		.chip_disable = bma25x_chip_disable,
 	},
@@ -749,6 +752,7 @@ static const struct bma180_part_info bma180_part_info[] = {
 		.int_map_reg = BMA254_INT_MAP_REG,
 		.int_enable_dataready_int1_mask = BMA254_INT1_DATA_MASK,
 		.softreset_reg = BMA254_RESET_REG,
+		.softreset_val = BMA180_RESET_VAL,
 		.chip_config = bma25x_chip_config,
 		.chip_disable = bma25x_chip_disable,
 	},
-- 
2.20.1

Powered by blists - more mailing lists