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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/arm/mach-imx/clk-gate-exclusive.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/arm/mach-imx/clk-gate-exclusive.c')
-rw-r--r--kernel/arch/arm/mach-imx/clk-gate-exclusive.c94
1 files changed, 0 insertions, 94 deletions
diff --git a/kernel/arch/arm/mach-imx/clk-gate-exclusive.c b/kernel/arch/arm/mach-imx/clk-gate-exclusive.c
deleted file mode 100644
index c12f5f2e0..000000000
--- a/kernel/arch/arm/mach-imx/clk-gate-exclusive.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright 2014 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/clk-provider.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-#include "clk.h"
-
-/**
- * struct clk_gate_exclusive - i.MX specific gate clock which is mutually
- * exclusive with other gate clocks
- *
- * @gate: the parent class
- * @exclusive_mask: mask of gate bits which are mutually exclusive to this
- * gate clock
- *
- * The imx exclusive gate clock is a subclass of basic clk_gate
- * with an addtional mask to indicate which other gate bits in the same
- * register is mutually exclusive to this gate clock.
- */
-struct clk_gate_exclusive {
- struct clk_gate gate;
- u32 exclusive_mask;
-};
-
-static int clk_gate_exclusive_enable(struct clk_hw *hw)
-{
- struct clk_gate *gate = container_of(hw, struct clk_gate, hw);
- struct clk_gate_exclusive *exgate = container_of(gate,
- struct clk_gate_exclusive, gate);
- u32 val = readl(gate->reg);
-
- if (val & exgate->exclusive_mask)
- return -EBUSY;
-
- return clk_gate_ops.enable(hw);
-}
-
-static void clk_gate_exclusive_disable(struct clk_hw *hw)
-{
- clk_gate_ops.disable(hw);
-}
-
-static int clk_gate_exclusive_is_enabled(struct clk_hw *hw)
-{
- return clk_gate_ops.is_enabled(hw);
-}
-
-static const struct clk_ops clk_gate_exclusive_ops = {
- .enable = clk_gate_exclusive_enable,
- .disable = clk_gate_exclusive_disable,
- .is_enabled = clk_gate_exclusive_is_enabled,
-};
-
-struct clk *imx_clk_gate_exclusive(const char *name, const char *parent,
- void __iomem *reg, u8 shift, u32 exclusive_mask)
-{
- struct clk_gate_exclusive *exgate;
- struct clk_gate *gate;
- struct clk *clk;
- struct clk_init_data init;
-
- if (exclusive_mask == 0)
- return ERR_PTR(-EINVAL);
-
- exgate = kzalloc(sizeof(*exgate), GFP_KERNEL);
- if (!exgate)
- return ERR_PTR(-ENOMEM);
- gate = &exgate->gate;
-
- init.name = name;
- init.ops = &clk_gate_exclusive_ops;
- init.flags = CLK_SET_RATE_PARENT;
- init.parent_names = parent ? &parent : NULL;
- init.num_parents = parent ? 1 : 0;
-
- gate->reg = reg;
- gate->bit_idx = shift;
- gate->lock = &imx_ccm_lock;
- gate->hw.init = &init;
- exgate->exclusive_mask = exclusive_mask;
-
- clk = clk_register(NULL, &gate->hw);
- if (IS_ERR(clk))
- kfree(exgate);
-
- return clk;
-}