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Commit fdb868cd authored by Bai Ping's avatar Bai Ping Committed by Shawn Guo
Browse files

clk: imx: Add a virtual arm clk on i.mx7d 



Add a virtual arm clk to abstract the actual steps
when changing the ARM core frequency.So we can using
the 'cpufreq-dt' driver on i.MX7D/Solo.

Signed-off-by: default avatarBai Ping <b51503@freescale.com>
Acked-by: default avatarLucas Stach <l.stach@pengutronix.de>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 2e133f61

drivers/clk/imx/clk-imx7d.c

+6 −0
Original line number Original line Diff line number Diff line
@@ -833,6 +833,12 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node) 




	clks[IMX7D_GPT_3M_CLK] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8);

	clks[IMX7D_GPT_3M_CLK] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8);





	clks[IMX7D_CLK_ARM] = imx_clk_cpu("arm", "arm_a7_root_clk",

					 clks[IMX7D_ARM_A7_ROOT_CLK],

					 clks[IMX7D_ARM_A7_ROOT_SRC],

					 clks[IMX7D_PLL_ARM_MAIN_CLK],

					 clks[IMX7D_PLL_SYS_MAIN_CLK]);



	for (i = 0; i < ARRAY_SIZE(clks); i++)

	for (i = 0; i < ARRAY_SIZE(clks); i++)

		if (IS_ERR(clks[i]))

		if (IS_ERR(clks[i]))

			pr_err("i.MX7D clk %d: register failed with %ld\n",

			pr_err("i.MX7D clk %d: register failed with %ld\n",

include/dt-bindings/clock/imx7d-clock.h

+2 −1
Original line number Original line Diff line number Diff line
@@ -447,5 +447,6 @@ 
#define IMX7D_SEMA4_HS_ROOT_CLK		434

#define IMX7D_SEMA4_HS_ROOT_CLK		434

#define IMX7D_PLL_DRAM_TEST_DIV		435

#define IMX7D_PLL_DRAM_TEST_DIV		435

#define IMX7D_ADC_ROOT_CLK		436

#define IMX7D_ADC_ROOT_CLK		436

#define IMX7D_CLK_END			437

#define IMX7D_CLK_ARM			437

#define IMX7D_CLK_END			438

#endif /* __DT_BINDINGS_CLOCK_IMX7D_H */
 
#endif /* __DT_BINDINGS_CLOCK_IMX7D_H */