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Thu, 21 Nov 2024 00:20:46 -0800 (PST) Received: from mva-rohm ([213.255.186.46]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-2ff69959957sm18020121fa.43.2024.11.21.00.20.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Nov 2024 00:20:44 -0800 (PST) Date: Thu, 21 Nov 2024 10:20:39 +0200 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matti Vaittinen , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/8] iio: accel: kx022a: Support ICs with different G-ranges Message-ID: <5eda60de7d8fce910bc638918cbd3a204a7989e6.1732105157.git.mazziesaccount@gmail.com> References: Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="w2KlgkoOUh2SNTBo" Content-Disposition: inline In-Reply-To: --w2KlgkoOUh2SNTBo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable The register interface of the ROHM KX134ACR-LBZ accelerometer is almost identical to the KX132ACR-LBZ. Main difference between these accelerometers is that the KX134ACR-LBZ supports G-ranges +/- 8, 16, 32 and 64G. All the other sensors supported by the kx022a driver can measure +/- 2, 4, 8 and 16G. Prepare supporting the KX134ACR-LBZ with different G-ranges by storing a pointer to the scale tables in IC specific structure. Signed-off-by: Matti Vaittinen --- Revision history: v1 =3D> v2: - patch number changed because a change was added to the series. - rebased on iio/testing to avoid conflicts with queued fixes --- drivers/iio/accel/kionix-kx022a.c | 32 ++++++++++++++++++++----------- drivers/iio/accel/kionix-kx022a.h | 2 ++ 2 files changed, 23 insertions(+), 11 deletions(-) diff --git a/drivers/iio/accel/kionix-kx022a.c b/drivers/iio/accel/kionix-k= x022a.c index 98953178a580..b23a27623a46 100644 --- a/drivers/iio/accel/kionix-kx022a.c +++ b/drivers/iio/accel/kionix-kx022a.c @@ -413,6 +413,8 @@ static int kx022a_read_avail(struct iio_dev *indio_dev, const int **vals, int *type, int *length, long mask) { + struct kx022a_data *data =3D iio_priv(indio_dev); + switch (mask) { case IIO_CHAN_INFO_SAMP_FREQ: *vals =3D (const int *)kx022a_accel_samp_freq_table; @@ -421,9 +423,8 @@ static int kx022a_read_avail(struct iio_dev *indio_dev, *type =3D IIO_VAL_INT_PLUS_MICRO; return IIO_AVAIL_LIST; case IIO_CHAN_INFO_SCALE: - *vals =3D (const int *)kx022a_scale_table; - *length =3D ARRAY_SIZE(kx022a_scale_table) * - ARRAY_SIZE(kx022a_scale_table[0]); + *vals =3D (const int *)data->chip_info->scale_table; + *length =3D data->chip_info->scale_table_size; *type =3D IIO_VAL_INT_PLUS_NANO; return IIO_AVAIL_LIST; default: @@ -439,14 +440,14 @@ static void kx022a_reg2freq(unsigned int val, int *v= al1, int *val2) *val2 =3D kx022a_accel_samp_freq_table[val & KX022A_MASK_ODR][1]; } =20 -static void kx022a_reg2scale(unsigned int val, unsigned int *val1, - unsigned int *val2) +static void kx022a_reg2scale(struct kx022a_data *data, unsigned int val, + unsigned int *val1, unsigned int *val2) { val &=3D KX022A_MASK_GSEL; val >>=3D KX022A_GSEL_SHIFT; =20 - *val1 =3D kx022a_scale_table[val][0]; - *val2 =3D kx022a_scale_table[val][1]; + *val1 =3D data->chip_info->scale_table[val][0]; + *val2 =3D data->chip_info->scale_table[val][1]; } =20 static int __kx022a_turn_on_off(struct kx022a_data *data, bool on) @@ -544,11 +545,11 @@ static int kx022a_write_raw(struct iio_dev *idev, kx022a_turn_on_unlock(data); break; case IIO_CHAN_INFO_SCALE: - n =3D ARRAY_SIZE(kx022a_scale_table); + n =3D data->chip_info->scale_table_size / 2; =20 while (n-- > 0) - if (val =3D=3D kx022a_scale_table[n][0] && - val2 =3D=3D kx022a_scale_table[n][1]) + if (val =3D=3D data->chip_info->scale_table[n][0] && + val2 =3D=3D data->chip_info->scale_table[n][1]) break; if (n < 0) { ret =3D -EINVAL; @@ -643,7 +644,7 @@ static int kx022a_read_raw(struct iio_dev *idev, if (ret < 0) return ret; =20 - kx022a_reg2scale(regval, val, val2); + kx022a_reg2scale(data, regval, val, val2); =20 return IIO_VAL_INT_PLUS_NANO; } @@ -1148,6 +1149,9 @@ const struct kx022a_chip_info kx022a_chip_info =3D { .regmap_config =3D &kx022a_regmap_config, .channels =3D kx022a_channels, .num_channels =3D ARRAY_SIZE(kx022a_channels), + .scale_table =3D kx022a_scale_table, + .scale_table_size =3D ARRAY_SIZE(kx022a_scale_table) * + ARRAY_SIZE(kx022a_scale_table[0]), .fifo_length =3D KX022A_FIFO_LENGTH, .who =3D KX022A_REG_WHO, .id =3D KX022A_ID, @@ -1173,6 +1177,9 @@ const struct kx022a_chip_info kx132_chip_info =3D { .regmap_config =3D &kx132_regmap_config, .channels =3D kx132_channels, .num_channels =3D ARRAY_SIZE(kx132_channels), + .scale_table =3D kx022a_scale_table, + .scale_table_size =3D ARRAY_SIZE(kx022a_scale_table) * + ARRAY_SIZE(kx022a_scale_table[0]), .fifo_length =3D KX132_FIFO_LENGTH, .who =3D KX132_REG_WHO, .id =3D KX132_ID, @@ -1206,6 +1213,9 @@ const struct kx022a_chip_info kx132acr_chip_info =3D { .regmap_config =3D &kx022a_regmap_config, .channels =3D kx022a_channels, .num_channels =3D ARRAY_SIZE(kx022a_channels), + .scale_table =3D kx022a_scale_table, + .scale_table_size =3D ARRAY_SIZE(kx022a_scale_table) * + ARRAY_SIZE(kx022a_scale_table[0]), .fifo_length =3D KX022A_FIFO_LENGTH, .who =3D KX022A_REG_WHO, .id =3D KX132ACR_LBZ_ID, diff --git a/drivers/iio/accel/kionix-kx022a.h b/drivers/iio/accel/kionix-k= x022a.h index 7060438ad88c..36e9d9de8c13 100644 --- a/drivers/iio/accel/kionix-kx022a.h +++ b/drivers/iio/accel/kionix-kx022a.h @@ -161,6 +161,8 @@ struct kx022a_data; struct kx022a_chip_info { const char *name; const struct regmap_config *regmap_config; + const int (*scale_table)[2]; + const int scale_table_size; const struct iio_chan_spec *channels; unsigned int num_channels; unsigned int fifo_length; --=20 2.47.0 --w2KlgkoOUh2SNTBo Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEIx+f8wZb28fLKEhTeFA3/03aocUFAmc+7VcACgkQeFA3/03a ocXfrAf+IB9OKt3PIdSO0pqk2f3GOOadgqn81N9VE6tp39QvYQNlqS0Eub9GTEhH 4iuMUYYLyfk4mWCSZZouIWLxPI7NI5Uyi5KmuhN2M1JjP2vheTh5Huu7w21OjFM1 Ur0Jz66afMu8UiGBUhN0BvORa2iTPhiiIBEQmWPjQz0SAPm5Tz5chG9A31Fsr1bD sySBFPUqbEitAbKJw+VSFAUv19Dg2cF8YVKa5VKqCnUwSgtZpVEU9f8UrOcm+ryJ NrGOgs4yNTZ7sbAworqRmNKDTGQyQgUCx7UU6DwpMDBPtsYMH1aS19PWKQ82gCwP 417009RkzadMk4cxCyiF8rXgYYNZqg== =Ft9k -----END PGP SIGNATURE----- --w2KlgkoOUh2SNTBo--