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authorDavid S. Miller <davem@davemloft.net>2015-03-03 21:16:48 -0500
committerDavid S. Miller <davem@davemloft.net>2015-03-03 21:16:48 -0500
commit71a83a6db6138b9d41d8a0b6b91cb59f6dc4742c (patch)
treef74b6e4e48257ec6ce40b95645ecb8533b9cc1f8 /drivers/clk/ti/mux.c
parentb97526f3ff95f92b107f0fb52cbb8627e395429b (diff)
parenta6c5170d1edea97c538c81e377e56c7b5c5b7e63 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/rocker/rocker.c The rocker commit was two overlapping changes, one to rename the ->vport member to ->pport, and another making the bitmask expression use '1ULL' instead of plain '1'. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/clk/ti/mux.c')
-rw-r--r--drivers/clk/ti/mux.c70
1 files changed, 68 insertions, 2 deletions
diff --git a/drivers/clk/ti/mux.c b/drivers/clk/ti/mux.c
index e9d650e51287..728e253606bc 100644
--- a/drivers/clk/ti/mux.c
+++ b/drivers/clk/ti/mux.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/clk/ti.h>
+#include "clock.h"
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -144,6 +145,39 @@ static struct clk *_register_mux(struct device *dev, const char *name,
return clk;
}
+struct clk *ti_clk_register_mux(struct ti_clk *setup)
+{
+ struct ti_clk_mux *mux;
+ u32 flags;
+ u8 mux_flags = 0;
+ struct clk_omap_reg *reg_setup;
+ u32 reg;
+ u32 mask;
+
+ reg_setup = (struct clk_omap_reg *)&reg;
+
+ mux = setup->data;
+ flags = CLK_SET_RATE_NO_REPARENT;
+
+ mask = mux->num_parents;
+ if (!(mux->flags & CLKF_INDEX_STARTS_AT_ONE))
+ mask--;
+
+ mask = (1 << fls(mask)) - 1;
+ reg_setup->index = mux->module;
+ reg_setup->offset = mux->reg;
+
+ if (mux->flags & CLKF_INDEX_STARTS_AT_ONE)
+ mux_flags |= CLK_MUX_INDEX_ONE;
+
+ if (mux->flags & CLKF_SET_RATE_PARENT)
+ flags |= CLK_SET_RATE_PARENT;
+
+ return _register_mux(NULL, setup->name, mux->parents, mux->num_parents,
+ flags, (void __iomem *)reg, mux->bit_shift, mask,
+ mux_flags, NULL, NULL);
+}
+
/**
* of_mux_clk_setup - Setup function for simple mux rate clock
* @node: DT node for the clock
@@ -194,8 +228,9 @@ static void of_mux_clk_setup(struct device_node *node)
mask = (1 << fls(mask)) - 1;
- clk = _register_mux(NULL, node->name, parent_names, num_parents, flags,
- reg, shift, mask, clk_mux_flags, NULL, NULL);
+ clk = _register_mux(NULL, node->name, parent_names, num_parents,
+ flags, reg, shift, mask, clk_mux_flags, NULL,
+ NULL);
if (!IS_ERR(clk))
of_clk_add_provider(node, of_clk_src_simple_get, clk);
@@ -205,6 +240,37 @@ cleanup:
}
CLK_OF_DECLARE(mux_clk, "ti,mux-clock", of_mux_clk_setup);
+struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup)
+{
+ struct clk_mux *mux;
+ struct clk_omap_reg *reg;
+ int num_parents;
+
+ if (!setup)
+ return NULL;
+
+ mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+ if (!mux)
+ return ERR_PTR(-ENOMEM);
+
+ reg = (struct clk_omap_reg *)&mux->reg;
+
+ mux->shift = setup->bit_shift;
+
+ reg->index = setup->module;
+ reg->offset = setup->reg;
+
+ if (setup->flags & CLKF_INDEX_STARTS_AT_ONE)
+ mux->flags |= CLK_MUX_INDEX_ONE;
+
+ num_parents = setup->num_parents;
+
+ mux->mask = num_parents - 1;
+ mux->mask = (1 << fls(mux->mask)) - 1;
+
+ return &mux->hw;
+}
+
static void __init of_ti_composite_mux_clk_setup(struct device_node *node)
{
struct clk_mux *mux;