From 435a7285876fa7b3c4e1e6b028e1c490c01d738d Mon Sep 17 00:00:00 2001 From: Helmut Raiger Date: Wed, 19 Oct 2011 20:34:43 +0000 Subject: [PATCH] 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 Acked-by: Stefano Babic --- drivers/misc/pmic_fsl.c | 5 +---- 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)) { -- 2.7.4