From 072de836f53be56a70cecf70b43ae43b7ce17376 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 10:08:36 +0000
Subject: [PATCH] mk-rootfs.sh
---
kernel/drivers/clk/sunxi-ng/ccu-sun8i-a33.c | 80 +++++++++++++++++++++++----------------
1 files changed, 47 insertions(+), 33 deletions(-)
diff --git a/kernel/drivers/clk/sunxi-ng/ccu-sun8i-a33.c b/kernel/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
index c40d572..91838cd 100644
--- a/kernel/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
+++ b/kernel/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
@@ -1,17 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2016 Maxime Ripard. 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
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that 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.
*/
#include <linux/clk-provider.h>
+#include <linux/io.h>
#include <linux/of_address.h>
#include "ccu_common.h"
@@ -51,18 +44,29 @@
* the base (2x, 4x and 8x), and one variable divider (the one true
* pll audio).
*
- * We don't have any need for the variable divider for now, so we just
- * hardcode it to match with the clock names
+ * With sigma-delta modulation for fractional-N on the audio PLL,
+ * we have to use specific dividers. This means the variable divider
+ * can no longer be used, as the audio codec requests the exact clock
+ * rates we support through this mechanism. So we now hard code the
+ * variable divider to 1. This means the clock rates will no longer
+ * match the clock names.
*/
#define SUN8I_A33_PLL_AUDIO_REG 0x008
-static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_audio_base_clk, "pll-audio-base",
- "osc24M", 0x008,
- 8, 7, /* N */
- 0, 5, /* M */
- BIT(31), /* gate */
- BIT(28), /* lock */
- CLK_SET_RATE_UNGATE);
+static struct ccu_sdm_setting pll_audio_sdm_table[] = {
+ { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 },
+ { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 },
+};
+
+static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base",
+ "osc24M", 0x008,
+ 8, 7, /* N */
+ 0, 5, /* M */
+ pll_audio_sdm_table, BIT(24),
+ 0x284, BIT(31),
+ BIT(31), /* gate */
+ BIT(28), /* lock */
+ CLK_SET_RATE_UNGATE);
static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video_clk, "pll-video",
"osc24M", 0x010,
@@ -576,19 +580,29 @@
&ats_clk.common,
};
-/* We hardcode the divider to 4 for now */
-static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio",
- "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x",
- "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x",
- "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_audio_8x_clk, "pll-audio-8x",
- "pll-audio-base", 1, 2, CLK_SET_RATE_PARENT);
-static CLK_FIXED_FACTOR(pll_periph_2x_clk, "pll-periph-2x",
- "pll-periph", 1, 2, 0);
-static CLK_FIXED_FACTOR(pll_video_2x_clk, "pll-video-2x",
- "pll-video", 1, 2, 0);
+static const struct clk_hw *clk_parent_pll_audio[] = {
+ &pll_audio_base_clk.common.hw
+};
+
+/* We hardcode the divider to 1 for now */
+static CLK_FIXED_FACTOR_HWS(pll_audio_clk, "pll-audio",
+ clk_parent_pll_audio,
+ 1, 1, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HWS(pll_audio_2x_clk, "pll-audio-2x",
+ clk_parent_pll_audio,
+ 2, 1, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HWS(pll_audio_4x_clk, "pll-audio-4x",
+ clk_parent_pll_audio,
+ 1, 1, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HWS(pll_audio_8x_clk, "pll-audio-8x",
+ clk_parent_pll_audio,
+ 1, 2, CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HW(pll_periph_2x_clk, "pll-periph-2x",
+ &pll_periph_clk.common.hw,
+ 1, 2, 0);
+static CLK_FIXED_FACTOR_HW(pll_video_2x_clk, "pll-video-2x",
+ &pll_video_clk.common.hw,
+ 1, 2, 0);
static struct clk_hw_onecell_data sun8i_a33_hw_clks = {
.hws = {
@@ -781,10 +795,10 @@
return;
}
- /* Force the PLL-Audio-1x divider to 4 */
+ /* Force the PLL-Audio-1x divider to 1 */
val = readl(reg + SUN8I_A33_PLL_AUDIO_REG);
val &= ~GENMASK(19, 16);
- writel(val | (3 << 16), reg + SUN8I_A33_PLL_AUDIO_REG);
+ writel(val | (0 << 16), reg + SUN8I_A33_PLL_AUDIO_REG);
/* Force PLL-MIPI to MIPI mode */
val = readl(reg + SUN8I_A33_PLL_MIPI_REG);
--
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