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Commit 592431b0 authored by Thierry Reding's avatar Thierry Reding
Browse files

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: default avatarThierry Reding <treding@nvidia.com>
parent 4a4466a6

drivers/soc/tegra/pmc.c

+7 −9
Original line number Diff line number Diff line
@@ -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;