From 61598093bbdd283a7edc367d900f223070ead8d2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:03 +0000
Subject: [PATCH] add ax88772C AX88772C_eeprom_tools
---
kernel/drivers/clk/tegra/clk-periph.c | 47 ++++++++++++++++++++++++++++++++++-------------
1 files changed, 34 insertions(+), 13 deletions(-)
diff --git a/kernel/drivers/clk/tegra/clk-periph.c b/kernel/drivers/clk/tegra/clk-periph.c
index 3c96217..79ca3aa 100644
--- a/kernel/drivers/clk/tegra/clk-periph.c
+++ b/kernel/drivers/clk/tegra/clk-periph.c
@@ -1,19 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
- *
- * 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/>.
*/
+#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/export.h>
#include <linux/slab.h>
@@ -110,6 +100,32 @@
gate_ops->disable(gate_hw);
}
+static void clk_periph_disable_unused(struct clk_hw *hw)
+{
+ struct tegra_clk_periph *periph = to_clk_periph(hw);
+ const struct clk_ops *gate_ops = periph->gate_ops;
+ struct clk_hw *gate_hw = &periph->gate.hw;
+
+ gate_ops->disable_unused(gate_hw);
+}
+
+static void clk_periph_restore_context(struct clk_hw *hw)
+{
+ struct tegra_clk_periph *periph = to_clk_periph(hw);
+ const struct clk_ops *div_ops = periph->div_ops;
+ struct clk_hw *div_hw = &periph->divider.hw;
+ int parent_id;
+
+ parent_id = clk_hw_get_parent_index(hw);
+ if (WARN_ON(parent_id < 0))
+ return;
+
+ if (!(periph->gate.flags & TEGRA_PERIPH_NO_DIV))
+ div_ops->restore_context(div_hw);
+
+ clk_periph_set_parent(hw, parent_id);
+}
+
const struct clk_ops tegra_clk_periph_ops = {
.get_parent = clk_periph_get_parent,
.set_parent = clk_periph_set_parent,
@@ -119,6 +135,8 @@
.is_enabled = clk_periph_is_enabled,
.enable = clk_periph_enable,
.disable = clk_periph_disable,
+ .disable_unused = clk_periph_disable_unused,
+ .restore_context = clk_periph_restore_context,
};
static const struct clk_ops tegra_clk_periph_nodiv_ops = {
@@ -127,6 +145,8 @@
.is_enabled = clk_periph_is_enabled,
.enable = clk_periph_enable,
.disable = clk_periph_disable,
+ .disable_unused = clk_periph_disable_unused,
+ .restore_context = clk_periph_restore_context,
};
static const struct clk_ops tegra_clk_periph_no_gate_ops = {
@@ -135,6 +155,7 @@
.recalc_rate = clk_periph_recalc_rate,
.round_rate = clk_periph_round_rate,
.set_rate = clk_periph_set_rate,
+ .restore_context = clk_periph_restore_context,
};
static struct clk *_tegra_clk_register_periph(const char *name,
@@ -144,7 +165,7 @@
unsigned long flags)
{
struct clk *clk;
- struct clk_init_data init = {};
+ struct clk_init_data init;
const struct tegra_clk_periph_regs *bank;
bool div = !(periph->gate.flags & TEGRA_PERIPH_NO_DIV);
--
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