* Tero Kristo <t-kristo@xxxxxx> [131126 00:10]:
> Using regmap is required for isolating the actual memory access from
> the clock code. Now, the driver providing the support for the clock IP
> block can provide a regmap for this purpose.
>
> Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
> ---
> arch/arm/mach-omap2/clock.c | 27 ++++++++++++++++++++++++++-
> arch/arm/mach-omap2/clock.h | 3 +++
> 2 files changed, 29 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
> index 238be3f..1ef6df8 100644
> --- a/arch/arm/mach-omap2/clock.c
> +++ b/arch/arm/mach-omap2/clock.c
> @@ -25,7 +25,7 @@
> #include <linux/bitops.h>
> #include <linux/clk-private.h>
> #include <asm/cpu.h>
> -
> +#include <linux/regmap.h>
>
> #include <trace/events/power.h>
>
> @@ -56,6 +56,31 @@ u16 cpu_mask;
> static bool clkdm_control = true;
>
> static LIST_HEAD(clk_hw_omap_clocks);
> +struct regmap *clk_regmaps[CLK_MAX_REGMAPS];
> +
> +void omap2_clk_writel(u32 val, struct clk_hw_omap *clk, void __iomem *reg)
> +{
> + if (clk->flags & REGMAP_ADDRESSING) {
> + struct clk_omap_reg *r = (struct clk_omap_reg *)®
> + regmap_write(clk_regmaps[r->index], r->offset, val);
> + } else {
> + __raw_writel(val, reg);
> + }
> +}
> +
> +u32 omap2_clk_readl(struct clk_hw_omap *clk, void __iomem *reg)
> +{
> + u32 val;
> +
> + if (clk->flags & REGMAP_ADDRESSING) {
> + struct clk_omap_reg *r = (struct clk_omap_reg *)®
> + regmap_read(clk_regmaps[r->index], r->offset, &val);
> + } else {
> + val = __raw_readl(reg);
> + }
> +
> + return val;
> +}
>
> /*
> * Used for clocks that have the same value as the parent clock,
Maybe use read[lw]_relaxed and write[lw]_relaxed here and elsewhere
instead of __raw_read/write to help cut down the changes needed for
the big endian patch set?
Regards,
Tony
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