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

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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: Bai Ping <b51503@freescale.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Bai Ping 2015-11-24 18:25:14 +08:00 committed by Shawn Guo
parent 2e133f6188
commit fdb868cd05
2 changed files with 8 additions and 1 deletions
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6
drivers/clk/imx/clk-imx7d.c
View File

@ -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_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++)
if (IS_ERR(clks[i]))
pr_err("i.MX7D clk %d: register failed with %ld\n",

3
include/dt-bindings/clock/imx7d-clock.h
View File

@ -447,5 +447,6 @@
#define IMX7D_SEMA4_HS_ROOT_CLK 434
#define IMX7D_PLL_DRAM_TEST_DIV 435
#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 */