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@xxxxxxxxxxxxx>
---
drivers/clk/imx/clk-imx7d.c | 6 ++++++
include/dt-bindings/clock/imx7d-clock.h | 3 ++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c
index 448ef32..581b428 100644
--- a/drivers/clk/imx/clk-imx7d.c
+++ b/drivers/clk/imx/clk-imx7d.c
@@ -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",
diff --git a/include/dt-bindings/clock/imx7d-clock.h b/include/dt-bindings/clock/imx7d-clock.h
index a4a7a9c..edca8985c 100644
--- a/include/dt-bindings/clock/imx7d-clock.h
+++ b/include/dt-bindings/clock/imx7d-clock.h
@@ -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 */
--
1.9.1
--
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