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path: root/drivers/power/power_spi.c
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Diffstat (limited to 'drivers/power/power_spi.c')
-rw-r--r--drivers/power/power_spi.c33
1 files changed, 10 insertions, 23 deletions
diff --git a/drivers/power/power_spi.c b/drivers/power/power_spi.c
index fb455a0..1e55446 100644
--- a/drivers/power/power_spi.c
+++ b/drivers/power/power_spi.c
@@ -17,27 +17,14 @@
static struct spi_slave *slave;
-void pmic_spi_free(struct spi_slave *slave)
-{
- if (slave)
- spi_free_slave(slave);
-}
-
-struct spi_slave *pmic_spi_probe(struct pmic *p)
-{
- return spi_setup_slave(p->bus,
- p->hw.spi.cs,
- p->hw.spi.clk,
- p->hw.spi.mode);
-}
-
static u32 pmic_reg(struct pmic *p, u32 reg, u32 *val, u32 write)
{
u32 pmic_tx, pmic_rx;
u32 tmp;
if (!slave) {
- slave = pmic_spi_probe(p);
+ slave = spi_setup_slave(p->bus, p->hw.spi.cs, p->hw.spi.clk,
+ p->hw.spi.mode);
if (!slave)
return -1;
@@ -54,25 +41,25 @@ static u32 pmic_reg(struct pmic *p, u32 reg, u32 *val, u32 write)
tmp = cpu_to_be32(pmic_tx);
if (spi_xfer(slave, pmic_spi_bitlen, &tmp, &pmic_rx,
- pmic_spi_flags)) {
- spi_release_bus(slave);
- return -1;
- }
+ pmic_spi_flags))
+ goto err;
if (write) {
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)) {
- spi_release_bus(slave);
- return -1;
- }
+ pmic_spi_flags))
+ goto err;
}
spi_release_bus(slave);
*val = cpu_to_be32(pmic_rx);
return 0;
+
+err:
+ spi_release_bus(slave);
+ return -1;
}
int pmic_reg_write(struct pmic *p, u32 reg, u32 val)