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| author | Helmut Raiger <helmut.raiger@hale.at> | 2011-10-19 20:34:43 +0000 |
|---|---|---|
| committer | Terry Lv <r65388@freescale.com> | 2012-04-20 13:00:55 +0800 |
| commit | b0b3b3afe427a5d4b71b4fe0e1675c2a0568bb13 (patch) | |
| tree | c383d5ef829434e876004c82191a7dcef464d4f5 | |
| parent | 18796325e9e57b1770c593a2690e056efbfbde07 (diff) | |
| download | u-boot-imx-b0b3b3afe427a5d4b71b4fe0e1675c2a0568bb13.zip u-boot-imx-b0b3b3afe427a5d4b71b4fe0e1675c2a0568bb13.tar.gz u-boot-imx-b0b3b3afe427a5d4b71b4fe0e1675c2a0568bb13.tar.bz2 | |
misc: pmic: fix regression in pmic_fsl.c (SPI)
This fixes write access to PMIC registers, the bug was
introduced partly in commit 64aac65099 and in commit c9fe76dd91.
It was tested on an i.mx31 with a mc13783.
Signed-off-by: Helmut Raiger <helmut.raiger@hale.at>
Acked-by: Stefano Babic <sbabic@denx.de>
| -rw-r--r-- | drivers/misc/pmic_fsl.c | 5 | ||||
| -rw-r--r-- | drivers/misc/pmic_spi.c | 3 |
2 files changed, 2 insertions, 6 deletions
diff --git a/drivers/misc/pmic_fsl.c b/drivers/misc/pmic_fsl.c index b6e809a..0ff75ed 100644 --- a/drivers/misc/pmic_fsl.c +++ b/drivers/misc/pmic_fsl.c @@ -29,10 +29,7 @@ #if defined(CONFIG_PMIC_SPI) static u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write) { - if ((val == NULL) && (write)) - return *val & ~(1 << 31); - else - return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF); + return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF); } #endif diff --git a/drivers/misc/pmic_spi.c b/drivers/misc/pmic_spi.c index ff35377..5a0dd22 100644 --- a/drivers/misc/pmic_spi.c +++ b/drivers/misc/pmic_spi.c @@ -76,8 +76,7 @@ static u32 pmic_reg(struct pmic *p, u32 reg, u32 *val, u32 write) } if (write) { - pmic_tx = p->hw.spi.prepare_tx(0, NULL, write); - pmic_tx &= ~(1 << 31); + pmic_tx = p->hw.spi.prepare_tx(reg, val, 0); tmp = cpu_to_be32(pmic_tx); if (spi_xfer(slave, pmic_spi_bitlen, &tmp, &pmic_rx, pmic_spi_flags)) { |