Merge "clk: qcom: Retrieve pre_div from freq_tbl for shared RCG" (5282e978) · Commits · e / devices / android_kernel_sony_msm8998

drivers/clk/qcom/clk-rcg2.c

+15 −5

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2013, 2016-2017, The Linux Foundation. All rights reserved.
		* Copyright (c) 2013, 2016-2018, The Linux Foundation. All rights reserved.
		*
		* This software is licensed under the terms of the GNU General Public
		* License version 2, as published by the Free Software Foundation, and
		@@ -210,9 +210,11 @@ static unsigned long
		clk_rcg2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
		{
		struct clk_rcg2 *rcg = to_clk_rcg2(hw);
		const struct freq_tbl *f_curr;
		u32 cfg, hid_div, m = 0, n = 0, mode = 0, mask;

		if (rcg->enable_safe_config && !clk_hw_is_prepared(hw)) {
		if (rcg->enable_safe_config && (!clk_hw_is_prepared(hw)
		\|\| !clk_hw_is_enabled(hw))) {
		if (!rcg->current_freq)
		rcg->current_freq = cxo_f.freq;
		return rcg->current_freq;
		@@ -232,9 +234,17 @@ clk_rcg2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
		mode >>= CFG_MODE_SHIFT;
		}

		if (rcg->enable_safe_config) {
		f_curr = qcom_find_freq(rcg->freq_tbl, rcg->current_freq);
		if (!f_curr)
		return -EINVAL;

		hid_div = f_curr->pre_div;
		} else {
		mask = BIT(rcg->hid_width) - 1;
		hid_div = cfg >> CFG_SRC_DIV_SHIFT;
		hid_div &= mask;
		}

		return calc_rate(parent_rate, m, n, mode, hid_div);
		}