On 2025/3/20 15:09, Troy Mitchell wrote: > On 2025/3/20 11:25, Xukai Wang wrote: > ... >> +struct k230_clk { >> + int id; >> + struct k230_sysclk *ksc; >> + struct clk_hw hw; >> +}; >> + >> +#define to_k230_clk(_hw) container_of(_hw, struct k230_clk, hw) >> + >> +/* K230 SYSCLK. */ > Check other places and remove unnecessary comments. OK, I get it. >> + >> +static unsigned long k230_pll_get_rate(struct clk_hw *hw, unsigned long parent_rate) >> +{ >> + struct k230_pll *pll = to_k230_pll(hw); >> + struct k230_sysclk *ksc = pll->ksc; >> + u32 reg; >> + u32 r, f, od; >> + >> + reg = readl(pll->bypass); >> + if (reg & K230_PLL_BYPASS_ENABLE) >> + return parent_rate; >> + >> + reg = readl(pll->lock); >> + if (!(reg & (K230_PLL_STATUS_MASK))) { /* unlocked */ > unnecessary comment and wrong position. I'll modify it. >> + dev_err(&ksc->pdev->dev, "%s is unlock.\n", clk_hw_get_name(hw)); >> + return 0; >> + } >> + >> + reg = readl(pll->div); >> + r = ((reg >> K230_PLL_R_SHIFT) & K230_PLL_R_MASK) + 1; >> + f = ((reg >> K230_PLL_F_SHIFT) & K230_PLL_F_MASK) + 1; >> + od = ((reg >> K230_PLL_OD_SHIFT) & K230_PLL_OD_MASK) + 1; >> + >> + return mul_u64_u32_div(parent_rate, f, r * od); >> +} >> + > ... > >> + >> +static int k230_clk_probe(struct platform_device *pdev) >> +{ >> + int ret; >> + struct k230_sysclk *ksc; >> + >> + ksc = devm_kzalloc(&pdev->dev, sizeof(struct k230_sysclk), GFP_KERNEL); > you can use `sizeof(*ksc)` instead. same below. OK, I get it. And thanks for your review.