C++ (Cpp) powergate_partition_assert_reset示例

示例#1

文件： powergate-ops-txx.c 项目： Packmaan7144/kernel_nvidia_s8515

int tegraxx_powergate_partition(int id,
                                struct powergate_partition_info *pg_info)
{
    int ret;

    /* If first clk_ptr is null, fill clk info for the partition */
    if (pg_info->clk_info[0].clk_ptr)
        get_clk_info(pg_info);

    powergate_partition_assert_reset(pg_info);

    /* Powergating is done only if refcnt of all clks is 0 */
    ret = is_partition_clk_disabled(pg_info);
    if (ret)
        goto err_clk_off;

    ret = powergate_module(id);
    if (ret)
        goto err_power_off;

    return 0;

err_power_off:
    WARN(1, "Could not Powergate Partition %d", id);
err_clk_off:
    WARN(1, "Could not Powergate Partition %d, all clks not disabled", id);
    return ret;
}

示例#2

文件： powergate-ops-txx.c 项目： Packmaan7144/kernel_nvidia_s8515

int tegraxx_unpowergate_partition(int id,
                                  struct powergate_partition_info *pg_info)
{
    int ret;

    /* If first clk_ptr is null, fill clk info for the partition */
    if (!pg_info->clk_info[0].clk_ptr)
        get_clk_info(pg_info);

    if (tegra_powergate_is_powered(id))
        return tegra_powergate_reset_module(pg_info);

    ret = unpowergate_module(id);
    if (ret)
        goto err_power;

    powergate_partition_assert_reset(pg_info);

    /* Un-Powergating fails if all clks are not enabled */
    ret = partition_clk_enable(pg_info);
    if (ret)
        goto err_clk_on;

    udelay(10);

    ret = tegra_powergate_remove_clamping(id);
    if (ret)
        goto err_clamp;

    udelay(10);

    powergate_partition_deassert_reset(pg_info);

    tegra_powergate_mc_flush_done(id);

    /* Disable all clks enabled earlier. Drivers should enable clks */
    partition_clk_disable(pg_info);

    return 0;

err_clamp:
    partition_clk_disable(pg_info);
err_clk_on:
    powergate_module(id);
err_power:
    WARN(1, "Could not Un-Powergate %d", id);

    return ret;
}

示例#3

文件： powergate.c 项目： Klozz/Grouper-3.4

int tegra_powergate_reset_module(struct powergate_partition_info *pg_info)
{
	int ret;

	powergate_partition_assert_reset(pg_info);

	udelay(10);

	ret = partition_clk_enable(pg_info);
	if (ret)
		return ret;

	udelay(10);

	powergate_partition_deassert_reset(pg_info);

	partition_clk_disable(pg_info);

	return 0;
}

示例#4

文件： powergate-ops-t1xx.c 项目： ChristopherLu/manifold_linux

int tegra1xx_powergate(int id, struct powergate_partition_info *pg_info)
{
	int ret;

	/* If first clk_ptr is null, fill clk info for the partition */
	if (!pg_info->clk_info[0].clk_ptr)
		get_clk_info(pg_info);

	ret = partition_clk_enable(pg_info);
	if (ret)
		WARN(1, "Couldn't enable clock");

	udelay(10);

	tegra_powergate_mc_flush(id);

	udelay(10);

	powergate_partition_assert_reset(pg_info);

	udelay(10);

	/* Powergating is done only if refcnt of all clks is 0 */
	partition_clk_disable(pg_info);

	udelay(10);

	ret = tegra_powergate_set(id, false);
	if (ret)
		goto err_power_off;

	return 0;

err_power_off:
	WARN(1, "Could not Powergate Partition %d", id);
	return ret;
}