[PATCH v2 5/6] clk: stm32f469: Add QSPI clock
Stephen Boyd
sboyd at codeaurora.org
Wed Oct 19 13:32:28 PDT 2016
On 10/14, gabriel.fernandez at st.com wrote:
> @@ -532,10 +618,42 @@ static struct clk_hw *stm32_register_cclk(struct device *dev, const char *name,
> { 0 },
> };
>
> +struct stm32f4_clk_data {
> + const struct stm32f4_gate_data *gates_data;
> + const u64 *gates_map;
> + int gates_num;
> +};
> @@ -549,6 +667,19 @@ static void __init stm32f4_rcc_init(struct device_node *np)
> goto fail;
> }
>
> + match = of_match_node(stm32f4_of_match, np);
> + if (WARN_ON(!match))
> + return;
> +
> + data = match->data;
> +
> + clks = kmalloc_array(data->gates_num + END_PRIMARY_CLK,
> + sizeof(struct clk_hw *), GFP_KERNEL);
sizeof(*clks)?
> + if (!clks)
> + goto fail;
> +
> + stm32f4_gate_map = data->gates_map;
> +
> hse_clk = of_clk_get_parent_name(np, 0);
>
> clk_register_fixed_rate_with_accuracy(NULL, "hsi", NULL, 0,
> @@ -581,11 +712,15 @@ static void __init stm32f4_rcc_init(struct device_node *np)
> clks[FCLK] = clk_hw_register_fixed_factor(NULL, "fclk", "ahb_div",
> 0, 1, 1);
>
> - for (n = 0; n < ARRAY_SIZE(stm32f4_gates); n++) {
> - const struct stm32f4_gate_data *gd = &stm32f4_gates[n];
> - unsigned int secondary =
> - 8 * (gd->offset - STM32F4_RCC_AHB1ENR) + gd->bit_idx;
> - int idx = stm32f4_rcc_lookup_clk_idx(0, secondary);
> + for (n = 0; n < data->gates_num; n++) {
> + const struct stm32f4_gate_data *gd;
> + unsigned int secondary;
> + int idx;
> +
> + gd = (struct stm32f4_gate_data *) &data->gates_data[n];
Why do we cast here? Get rid of const? Perhaps the struct
shouldn't have const on the member instead?
> + secondary = 8 * (gd->offset - STM32F4_RCC_AHB1ENR) +
> + gd->bit_idx;
> + idx = stm32f4_rcc_lookup_clk_idx(0, secondary);
>
> if (idx < 0)
--
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