memory: tegra30-emc: Make driver modular (0c56eda8) · Commits · 戴 / test

drivers/memory/tegra/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -21,7 +21,7 @@ config TEGRA20_EMC
		external memory.

		config TEGRA30_EMC
		bool "NVIDIA Tegra30 External Memory Controller driver"
		tristate "NVIDIA Tegra30 External Memory Controller driver"
		default y
		depends on TEGRA_MC && ARCH_TEGRA_3x_SOC
		help

+3 −0

Original line number	Diff line number	Diff line
		@@ -6,6 +6,7 @@
		#include <linux/clk.h>
		#include <linux/delay.h>
		#include <linux/dma-mapping.h>
		#include <linux/export.h>
		#include <linux/interrupt.h>
		#include <linux/kernel.h>
		#include <linux/module.h>
		@@ -346,6 +347,7 @@ int tegra_mc_write_emem_configuration(struct tegra_mc *mc, unsigned long rate)

		return 0;
		}
		EXPORT_SYMBOL_GPL(tegra_mc_write_emem_configuration);

		unsigned int tegra_mc_get_emem_device_count(struct tegra_mc *mc)
		{
		@@ -357,6 +359,7 @@ unsigned int tegra_mc_get_emem_device_count(struct tegra_mc *mc)

		return dram_count;
		}
		EXPORT_SYMBOL_GPL(tegra_mc_get_emem_device_count);

		static int load_one_timing(struct tegra_mc *mc,
		struct tegra_mc_timing *timing,

+12 −5

Original line number	Diff line number	Diff line
		@@ -1330,6 +1330,13 @@ static int tegra_emc_probe(struct platform_device *pdev)
		platform_set_drvdata(pdev, emc);
		tegra_emc_debugfs_init(emc);

		/*
		* Don't allow the kernel module to be unloaded. Unloading adds some
		* extra complexity which doesn't really worth the effort in a case of
		* this driver.
		*/
		try_module_get(THIS_MODULE);

		return 0;

		unset_cb:
		@@ -1380,6 +1387,7 @@ static const struct of_device_id tegra_emc_of_match[] = {
		{ .compatible = "nvidia,tegra30-emc", },
		{},
		};
		MODULE_DEVICE_TABLE(of, tegra_emc_of_match);

		static struct platform_driver tegra_emc_driver = {
		.probe = tegra_emc_probe,
		@@ -1390,9 +1398,8 @@ static struct platform_driver tegra_emc_driver = {
		.suppress_bind_attrs = true,
		},
		};
		module_platform_driver(tegra_emc_driver);

		static int __init tegra_emc_init(void)
		{
		return platform_driver_register(&tegra_emc_driver);
		}
		subsys_initcall(tegra_emc_init);
		MODULE_AUTHOR("Dmitry Osipenko <digetx@gmail.com>");
		MODULE_DESCRIPTION("NVIDIA Tegra30 EMC driver");
		MODULE_LICENSE("GPL v2");