1 files changed, 0 insertions, 144 deletions
diff --git a/drivers/clk/meson/clk-audio-divider.c b/drivers/clk/meson/clk-audio-divider.c
deleted file mode 100644
index 6c07db06642d..000000000000
--- a/drivers/clk/meson/clk-audio-divider.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * Copyright (c) 2017 AmLogic, Inc.
- * Author: Jerome Brunet <jbrunet@baylibre.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- * i2s master clock divider: The algorithm of the generic clk-divider used with
- * a very precise clock parent such as the mpll tends to select a low divider
- * factor. This gives poor results with this particular divider, especially with
- * high frequencies (> 100 MHz)
- *
- * This driver try to select the maximum possible divider with the rate the
- * upstream clock can provide.
- */
-
-#include <linux/clk-provider.h>
-#include "clkc.h"
-
-#define to_meson_clk_audio_divider(_hw) container_of(_hw, \
-				struct meson_clk_audio_divider, hw)
-
-static int _div_round(unsigned long parent_rate, unsigned long rate,
-		      unsigned long flags)
-{
-	if (flags & CLK_DIVIDER_ROUND_CLOSEST)
-		return DIV_ROUND_CLOSEST_ULL((u64)parent_rate, rate);
-
-	return DIV_ROUND_UP_ULL((u64)parent_rate, rate);
-}
-
-static int _get_val(unsigned long parent_rate, unsigned long rate)
-{
-	return DIV_ROUND_UP_ULL((u64)parent_rate, rate) - 1;
-}
-
-static int _valid_divider(struct clk_hw *hw, int divider)
-{
-	struct meson_clk_audio_divider *adiv =
-		to_meson_clk_audio_divider(hw);
-	int max_divider;
-	u8 width;
-
-	width = adiv->div.width;
-	max_divider = 1 << width;
-
-	return clamp(divider, 1, max_divider);
-}
-
-static unsigned long audio_divider_recalc_rate(struct clk_hw *hw,
-					       unsigned long parent_rate)
-{
-	struct meson_clk_audio_divider *adiv =
-		to_meson_clk_audio_divider(hw);
-	struct parm *p;
-	unsigned long reg, divider;
-
-	p = &adiv->div;
-	reg = readl(adiv->base + p->reg_off);
-	divider = PARM_GET(p->width, p->shift, reg) + 1;
-
-	return DIV_ROUND_UP_ULL((u64)parent_rate, divider);
-}
-
-static long audio_divider_round_rate(struct clk_hw *hw,
-				     unsigned long rate,
-				     unsigned long *parent_rate)
-{
-	struct meson_clk_audio_divider *adiv =
-		to_meson_clk_audio_divider(hw);
-	unsigned long max_prate;
-	int divider;
-
-	if (!(clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)) {
-		divider = _div_round(*parent_rate, rate, adiv->flags);
-		divider = _valid_divider(hw, divider);
-		return DIV_ROUND_UP_ULL((u64)*parent_rate, divider);
-	}
-
-	/* Get the maximum parent rate */
-	max_prate = clk_hw_round_rate(clk_hw_get_parent(hw), ULONG_MAX);
-
-	/* Get the corresponding rounded down divider */
-	divider = max_prate / rate;
-	divider = _valid_divider(hw, divider);
-
-	/* Get actual rate of the parent */
-	*parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw),
-					 divider * rate);
-
-	return DIV_ROUND_UP_ULL((u64)*parent_rate, divider);
-}
-
-static int audio_divider_set_rate(struct clk_hw *hw,
-				  unsigned long rate,
-				  unsigned long parent_rate)
-{
-	struct meson_clk_audio_divider *adiv =
-		to_meson_clk_audio_divider(hw);
-	struct parm *p;
-	unsigned long reg, flags = 0;
-	int val;
-
-	val = _get_val(parent_rate, rate);
-
-	if (adiv->lock)
-		spin_lock_irqsave(adiv->lock, flags);
-	else
-		__acquire(adiv->lock);
-
-	p = &adiv->div;
-	reg = readl(adiv->base + p->reg_off);
-	reg = PARM_SET(p->width, p->shift, reg, val);
-	writel(reg, adiv->base + p->reg_off);
-
-	if (adiv->lock)
-		spin_unlock_irqrestore(adiv->lock, flags);
-	else
-		__release(adiv->lock);
-
-	return 0;
-}
-
-const struct clk_ops meson_clk_audio_divider_ro_ops = {
-	.recalc_rate	= audio_divider_recalc_rate,
-	.round_rate	= audio_divider_round_rate,
-};
-
-const struct clk_ops meson_clk_audio_divider_ops = {
-	.recalc_rate	= audio_divider_recalc_rate,
-	.round_rate	= audio_divider_round_rate,
-	.set_rate	= audio_divider_set_rate,
-};