From 592431b0369dc7a1f4a68f15ff0c48d94b66297f Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 4 Aug 2015 15:25:03 +0200 Subject: [PATCH] soc/tegra: pmc: Use existing pclk reference The driver requests the pclk clock at probe time already and stores its reference to it in struct tegra_pmc, so there is no need to look it up everytime it is needed. Use the existing reference instead. Signed-off-by: Thierry Reding --- drivers/soc/tegra/pmc.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 0add31180096..bc34cf7482fb 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -459,7 +459,6 @@ static int tegra_io_rail_prepare(int id, unsigned long *request, unsigned long *status, unsigned int *bit) { unsigned long rate, value; - struct clk *clk; *bit = id % 32; @@ -478,12 +477,7 @@ static int tegra_io_rail_prepare(int id, unsigned long *request, *request = IO_DPD2_REQ; } - clk = clk_get_sys(NULL, "pclk"); - if (IS_ERR(clk)) - return PTR_ERR(clk); - - rate = clk_get_rate(clk); - clk_put(clk); + rate = clk_get_rate(pmc->clk); tegra_pmc_writel(DPD_SAMPLE_ENABLE, DPD_SAMPLE); @@ -537,8 +531,10 @@ int tegra_io_rail_power_on(int id) tegra_pmc_writel(value, request); err = tegra_io_rail_poll(status, mask, 0, 250); - if (err < 0) + if (err < 0) { + pr_info("tegra_io_rail_poll() failed: %d\n", err); return err; + } tegra_io_rail_unprepare(); @@ -553,8 +549,10 @@ int tegra_io_rail_power_off(int id) int err; err = tegra_io_rail_prepare(id, &request, &status, &bit); - if (err < 0) + if (err < 0) { + pr_info("tegra_io_rail_prepare() failed: %d\n", err); return err; + } mask = 1 << bit; -- 2.20.1