diff options
Diffstat (limited to 'drivers/soc/tegra/pmc.c')
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 28 |
1 files changed, 8 insertions, 20 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 71c834f3847e..7792ed88d80b 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -967,8 +967,8 @@ static void tegra_io_rail_unprepare(void) int tegra_io_rail_power_on(unsigned int id) { - unsigned long request, status, value; - unsigned int bit, mask; + unsigned long request, status; + unsigned int bit; int err; mutex_lock(&pmc->powergates_lock); @@ -977,15 +977,9 @@ int tegra_io_rail_power_on(unsigned int id) if (err) goto error; - mask = 1 << bit; + tegra_pmc_writel(IO_DPD_REQ_CODE_OFF | BIT(bit), request); - value = tegra_pmc_readl(request); - value |= mask; - value &= ~IO_DPD_REQ_CODE_MASK; - value |= IO_DPD_REQ_CODE_OFF; - tegra_pmc_writel(value, request); - - err = tegra_io_rail_poll(status, mask, 0, 250); + err = tegra_io_rail_poll(status, BIT(bit), 0, 250); if (err) { pr_info("tegra_io_rail_poll() failed: %d\n", err); goto error; @@ -1002,8 +996,8 @@ EXPORT_SYMBOL(tegra_io_rail_power_on); int tegra_io_rail_power_off(unsigned int id) { - unsigned long request, status, value; - unsigned int bit, mask; + unsigned long request, status; + unsigned int bit; int err; mutex_lock(&pmc->powergates_lock); @@ -1014,15 +1008,9 @@ int tegra_io_rail_power_off(unsigned int id) goto error; } - mask = 1 << bit; - - value = tegra_pmc_readl(request); - value |= mask; - value &= ~IO_DPD_REQ_CODE_MASK; - value |= IO_DPD_REQ_CODE_ON; - tegra_pmc_writel(value, request); + tegra_pmc_writel(IO_DPD_REQ_CODE_ON | BIT(bit), request); - err = tegra_io_rail_poll(status, mask, mask, 250); + err = tegra_io_rail_poll(status, BIT(bit), BIT(bit), 250); if (err) goto error; |