53 static inline u32 clk_fd_readl(struct clk_fractional_divider *fd)  in clk_fd_readl()  argument
55 	if (fd->flags & CLK_FRAC_DIVIDER_BIG_ENDIAN)  in clk_fd_readl()
56 		return ioread32be(fd->reg);  in clk_fd_readl()
58 	return readl(fd->reg);  in clk_fd_readl()
61 static inline void clk_fd_writel(struct clk_fractional_divider *fd, u32 val)  in clk_fd_writel()  argument
63 	if (fd->flags & CLK_FRAC_DIVIDER_BIG_ENDIAN)  in clk_fd_writel()
64 		iowrite32be(val, fd->reg);  in clk_fd_writel()
66 		writel(val, fd->reg);  in clk_fd_writel()
71 	struct clk_fractional_divider *fd = to_clk_fd(hw);  in clk_fd_get_div()  local
77 	if (fd->lock)  in clk_fd_get_div()
78 		spin_lock_irqsave(fd->lock, flags);  in clk_fd_get_div()
80 		__acquire(fd->lock);  in clk_fd_get_div()
82 	val = clk_fd_readl(fd);  in clk_fd_get_div()
84 	if (fd->lock)  in clk_fd_get_div()
85 		spin_unlock_irqrestore(fd->lock, flags);  in clk_fd_get_div()
87 		__release(fd->lock);  in clk_fd_get_div()
89 	mmask = GENMASK(fd->mwidth - 1, 0) << fd->mshift;  in clk_fd_get_div()
90 	nmask = GENMASK(fd->nwidth - 1, 0) << fd->nshift;  in clk_fd_get_div()
92 	m = (val & mmask) >> fd->mshift;  in clk_fd_get_div()
93 	n = (val & nmask) >> fd->nshift;  in clk_fd_get_div()
95 	if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {  in clk_fd_get_div()
125 	struct clk_fractional_divider *fd = to_clk_fd(hw);  in clk_fractional_divider_general_approximation()  local
131 	 * by (scale - fd->nwidth) bits.  in clk_fractional_divider_general_approximation()
135 	if (fd->flags & CLK_FRAC_DIVIDER_POWER_OF_TWO_PS) {  in clk_fractional_divider_general_approximation()
138 		if (scale > fd->nwidth)  in clk_fractional_divider_general_approximation()
139 			rate <<= scale - fd->nwidth;  in clk_fractional_divider_general_approximation()
142 	if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {  in clk_fractional_divider_general_approximation()
143 		max_m = BIT(fd->mwidth);  in clk_fractional_divider_general_approximation()
144 		max_n = BIT(fd->nwidth);  in clk_fractional_divider_general_approximation()
146 		max_m = GENMASK(fd->mwidth - 1, 0);  in clk_fractional_divider_general_approximation()
147 		max_n = GENMASK(fd->nwidth - 1, 0);  in clk_fractional_divider_general_approximation()
157 	struct clk_fractional_divider *fd = to_clk_fd(hw);  in clk_fd_determine_rate()  local
167 	if (fd->approximation)  in clk_fd_determine_rate()
168 		fd->approximation(hw, req->rate, &req->best_parent_rate, &m, &n);  in clk_fd_determine_rate()
185 	struct clk_fractional_divider *fd = to_clk_fd(hw);  in clk_fd_set_rate()  local
191 	if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {  in clk_fd_set_rate()
192 		max_m = BIT(fd->mwidth);  in clk_fd_set_rate()
193 		max_n = BIT(fd->nwidth);  in clk_fd_set_rate()
195 		max_m = GENMASK(fd->mwidth - 1, 0);  in clk_fd_set_rate()
196 		max_n = GENMASK(fd->nwidth - 1, 0);  in clk_fd_set_rate()
200 	if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {  in clk_fd_set_rate()
205 	mmask = GENMASK(fd->mwidth - 1, 0) << fd->mshift;  in clk_fd_set_rate()
206 	nmask = GENMASK(fd->nwidth - 1, 0) << fd->nshift;  in clk_fd_set_rate()
208 	if (fd->lock)  in clk_fd_set_rate()
209 		spin_lock_irqsave(fd->lock, flags);  in clk_fd_set_rate()
211 		__acquire(fd->lock);  in clk_fd_set_rate()
213 	val = clk_fd_readl(fd);  in clk_fd_set_rate()
215 	val |= (m << fd->mshift) | (n << fd->nshift);  in clk_fd_set_rate()
216 	clk_fd_writel(fd, val);  in clk_fd_set_rate()
218 	if (fd->lock)  in clk_fd_set_rate()
219 		spin_unlock_irqrestore(fd->lock, flags);  in clk_fd_set_rate()
221 		__release(fd->lock);  in clk_fd_set_rate()
273 	struct clk_fractional_divider *fd;  in clk_hw_register_fractional_divider()  local
278 	fd = kzalloc(sizeof(*fd), GFP_KERNEL);  in clk_hw_register_fractional_divider()
279 	if (!fd)  in clk_hw_register_fractional_divider()
288 	fd->reg = reg;  in clk_hw_register_fractional_divider()
289 	fd->mshift = mshift;  in clk_hw_register_fractional_divider()
290 	fd->mwidth = mwidth;  in clk_hw_register_fractional_divider()
291 	fd->nshift = nshift;  in clk_hw_register_fractional_divider()
292 	fd->nwidth = nwidth;  in clk_hw_register_fractional_divider()
293 	fd->flags = clk_divider_flags;  in clk_hw_register_fractional_divider()
294 	fd->lock = lock;  in clk_hw_register_fractional_divider()
295 	fd->hw.init = &init;  in clk_hw_register_fractional_divider()
297 	hw = &fd->hw;  in clk_hw_register_fractional_divider()
300 		kfree(fd);  in clk_hw_register_fractional_divider()
326 	struct clk_fractional_divider *fd;  in clk_hw_unregister_fractional_divider()  local
328 	fd = to_clk_fd(hw);  in clk_hw_unregister_fractional_divider()
331 	kfree(fd);  in clk_hw_unregister_fractional_divider()