From: Adam Ward Date: Wed, 4 Mar 2015 16:13:12 +0000 (+0000) Subject: mfd: da9052: Fix register access via SPI X-Git-Tag: firefly_0821_release~176^2~1983^2~44 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=72e341c48fbca142d767e97746e33a4becf890ea;p=firefly-linux-kernel-4.4.55.git mfd: da9052: Fix register access via SPI The range of registers used by this driver exceeds that available via SPI with no paging (127), so we have to override the values from the default config which is set-up for I2C access. Also change SPI settings to match device's recommended OTP values. Signed-off-by: Adam Ward Signed-off-by: Lee Jones --- diff --git a/drivers/mfd/da9052-spi.c b/drivers/mfd/da9052-spi.c index 45ae0b7d13ef..b5de8a6856c0 100644 --- a/drivers/mfd/da9052-spi.c +++ b/drivers/mfd/da9052-spi.c @@ -32,7 +32,7 @@ static int da9052_spi_probe(struct spi_device *spi) if (!da9052) return -ENOMEM; - spi->mode = SPI_MODE_0 | SPI_CPOL; + spi->mode = SPI_MODE_0; spi->bits_per_word = 8; spi_setup(spi); @@ -43,6 +43,10 @@ static int da9052_spi_probe(struct spi_device *spi) config = da9052_regmap_config; config.read_flag_mask = 1; + config.reg_bits = 7; + config.pad_bits = 1; + config.val_bits = 8; + config.use_single_rw = 1; da9052->regmap = devm_regmap_init_spi(spi, &config); if (IS_ERR(da9052->regmap)) {