From 9438892e9f969a80ab9665b97e2e4432aa5a85a7 Mon Sep 17 00:00:00 2001 From: Adam Ward Date: Wed, 4 Mar 2015 16:13:12 +0000 Subject: [PATCH] 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 --- drivers/mfd/da9052-spi.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/da9052-spi.c b/drivers/mfd/da9052-spi.c index 45ae0b7d13ef1..b5de8a6856c0d 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)) { -- 2.39.5