Re: [PATCH 2/2] clk: meson: Add G12A AO Clock + Reset Controller

From: Stephen Boyd
Date: Tue Feb 05 2019 - 17:18:28 EST


Quoting Neil Armstrong (2019-02-04 01:13:30)
> + * Register offsets from the data sheet must be multiplied by 4.
> + */
> +#define AO_RTI_STATUS_REG3 0x0C
> +#define AO_RTI_PWR_CNTL_REG0 0x10
> +#define AO_RTI_GEN_CNTL_REG0 0x40
> +#define AO_CLK_GATE0 0x4c
> +#define AO_CLK_GATE0_SP 0x50
> +#define AO_OSCIN_CNTL 0x58
> +#define AO_CEC_CLK_CNTL_REG0 0x74
> +#define AO_CEC_CLK_CNTL_REG1 0x78
> +#define AO_SAR_CLK 0x90
> +#define AO_RTC_ALT_CLK_CNTL0 0x94
> +#define AO_RTC_ALT_CLK_CNTL1 0x98
> +
> +#define AXG_AO_GATE(_name, _reg, _bit) \
> +static struct clk_regmap g12a_aoclk_##_name = { \
> + .data = &(struct clk_regmap_gate_data) { \
> + .offset = (_reg), \
> + .bit_idx = (_bit), \
> + }, \
> + .hw.init = &(struct clk_init_data) { \
> + .name = "g12a_ao_" #_name, \
> + .ops = &clk_regmap_gate_ops, \
> + .parent_names = (const char *[]){ IN_PREFIX "mpeg-clk" }, \
> + .num_parents = 1, \
> + .flags = CLK_IGNORE_UNUSED, \

Can you please add a comment explaining why CLK_IGNORE_UNUSED is here?
It will help future readers know what's going on with this special flag.