ARM: OMAP4: Clock stubs since CLKDEV not in yet. (74830385) · Commits · 戴 / test

arch/arm/plat-omap/clock.c

+33 −0

Original line number	Diff line number	Diff line
		@@ -36,10 +36,40 @@ static struct clk_functions *arch_clock;
		* Standard clock functions defined in include/linux/clk.h
		-------------------------------------------------------------------------/

		/* This functions is moved to arch/arm/common/clkdev.c. For OMAP4 since
		* clock framework is not up , it is defined here to avoid rework in
		* every driver. Also dummy prcm reset function is added */

		/* Dummy hooks only for OMAP4.For rest OMAPs, common clkdev is used */
		#if defined(CONFIG_ARCH_OMAP4)
		struct clk clk_get(struct device dev, const char *id)
		{
		return NULL;
		}
		EXPORT_SYMBOL(clk_get);

		void clk_put(struct clk *clk)
		{
		}
		EXPORT_SYMBOL(clk_put);

		void omap2_clk_prepare_for_reboot(void)
		{
		}
		EXPORT_SYMBOL(omap2_clk_prepare_for_reboot);

		void omap_prcm_arch_reset(char mode)
		{
		}
		EXPORT_SYMBOL(omap_prcm_arch_reset);
		#endif
		int clk_enable(struct clk *clk)
		{
		unsigned long flags;
		int ret = 0;
		if (cpu_is_omap44xx())
		/* OMAP4 clk framework not supported yet */
		return 0;

		if (clk == NULL \|\| IS_ERR(clk))
		return -EINVAL;
		@@ -140,6 +170,9 @@ int clk_set_parent(struct clk clk, struct clk parent)
		unsigned long flags;
		int ret = -EINVAL;

		if (cpu_is_omap44xx())
		/* OMAP4 clk framework not supported yet */
		return 0;
		if (clk == NULL \|\| IS_ERR(clk) \|\| parent == NULL \|\| IS_ERR(parent))
		return ret;