hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

clk: tegra: Add TEGRA_PERIPH_NO_DIV flag 

This flag indicates the peripheral clock does not have a divider. It will
simplify the initialization tables and avoids some very similar code.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
This commit is contained in:
Peter De Schrijver 2013-09-02 18:43:56 +03:00
parent 343a607cb7
commit 5bb9d26700
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/clk/tegra/clk-periph.c
View File

@ -173,12 +173,16 @@ const struct clk_ops tegra_clk_periph_nodiv_ops = {
static struct clk *_tegra_clk_register_periph(const char *name, static struct clk *_tegra_clk_register_periph(const char *name,
const char **parent_names, int num_parents, const char **parent_names, int num_parents,
struct tegra_clk_periph *periph, struct tegra_clk_periph *periph,
void __iomem *clk_base, u32 offset, bool div, void __iomem *clk_base, u32 offset,
unsigned long flags) unsigned long flags)
{ {
struct clk *clk; struct clk *clk;
struct clk_init_data init; struct clk_init_data init;
struct tegra_clk_periph_regs *bank; struct tegra_clk_periph_regs *bank;
bool div = !(periph->gate.flags & TEGRA_PERIPH_NO_DIV);
flags |= periph->gate.flags & TEGRA_PERIPH_NO_DIV ?
CLK_SET_RATE_PARENT : 0;
init.name = name; init.name = name;
init.ops = div ? &tegra_clk_periph_ops : &tegra_clk_periph_nodiv_ops; init.ops = div ? &tegra_clk_periph_ops : &tegra_clk_periph_nodiv_ops;
@ -216,7 +220,7 @@ struct clk *tegra_clk_register_periph(const char *name,
u32 offset, unsigned long flags) u32 offset, unsigned long flags)
{ {
return _tegra_clk_register_periph(name, parent_names, num_parents, return _tegra_clk_register_periph(name, parent_names, num_parents,
periph, clk_base, offset, true, flags); periph, clk_base, offset, flags);
} }
struct clk *tegra_clk_register_periph_nodiv(const char *name, struct clk *tegra_clk_register_periph_nodiv(const char *name,
@ -224,6 +228,7 @@ struct clk *tegra_clk_register_periph_nodiv(const char *name,
struct tegra_clk_periph *periph, void __iomem *clk_base, struct tegra_clk_periph *periph, void __iomem *clk_base,
u32 offset) u32 offset)
{ {
periph->gate.flags |= TEGRA_PERIPH_NO_DIV;
return _tegra_clk_register_periph(name, parent_names, num_parents, return _tegra_clk_register_periph(name, parent_names, num_parents,
periph, clk_base, offset, false, CLK_SET_RATE_PARENT); periph, clk_base, offset, CLK_SET_RATE_PARENT);
} }

1
drivers/clk/tegra/clk.h
View File

@ -397,6 +397,7 @@ struct tegra_clk_periph_gate {
#define TEGRA_PERIPH_MANUAL_RESET BIT(1) #define TEGRA_PERIPH_MANUAL_RESET BIT(1)
#define TEGRA_PERIPH_ON_APB BIT(2) #define TEGRA_PERIPH_ON_APB BIT(2)
#define TEGRA_PERIPH_WAR_1005168 BIT(3) #define TEGRA_PERIPH_WAR_1005168 BIT(3)
#define TEGRA_PERIPH_NO_DIV BIT(4)
void tegra_periph_reset(struct tegra_clk_periph_gate *gate, bool assert); void tegra_periph_reset(struct tegra_clk_periph_gate *gate, bool assert);
extern const struct clk_ops tegra_clk_periph_gate_ops; extern const struct clk_ops tegra_clk_periph_gate_ops;