OMAP2/3 clock: combine OMAP2 & 3 boot-time MPU rate change code
The OMAP2 and OMAP3 boot-time MPU rate change code is almost
identical. Merge them into mach-omap2/clock.c, and add kerneldoc
documentation.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c
index 7a2f5ad..80bb0f0 100644
--- a/arch/arm/mach-omap2/clock2xxx.c
+++ b/arch/arm/mach-omap2/clock2xxx.c
@@ -50,40 +50,24 @@
}
/*
- * Switch the MPU rate if specified on cmdline.
- * We cannot do this early until cmdline is parsed.
+ * Switch the MPU rate if specified on cmdline. We cannot do this
+ * early until cmdline is parsed. XXX This should be removed from the
+ * clock code and handled by the OPP layer code in the near future.
*/
static int __init omap2xxx_clk_arch_init(void)
{
- struct clk *virt_prcm_set, *sys_ck, *dpll_ck, *mpu_ck;
- unsigned long sys_ck_rate;
+ int ret;
if (!cpu_is_omap24xx())
return 0;
- if (!mpurate)
- return -EINVAL;
+ ret = omap2_clk_switch_mpurate_at_boot("virt_prcm_set");
+ if (!ret)
+ omap2_clk_print_new_rates("sys_ck", "dpll_ck", "mpu_ck");
- virt_prcm_set = clk_get(NULL, "virt_prcm_set");
- sys_ck = clk_get(NULL, "sys_ck");
- dpll_ck = clk_get(NULL, "dpll_ck");
- mpu_ck = clk_get(NULL, "mpu_ck");
-
- if (clk_set_rate(virt_prcm_set, mpurate))
- pr_err("Could not find matching MPU rate\n");
-
- recalculate_root_clocks();
-
- sys_ck_rate = clk_get_rate(sys_ck);
-
- pr_info("Switched to new clocking rate (Crystal/DPLL/MPU): "
- "%ld.%01ld/%ld/%ld MHz\n",
- (sys_ck_rate / 1000000), (sys_ck_rate / 100000) % 10,
- (clk_get_rate(dpll_ck) / 1000000),
- (clk_get_rate(mpu_ck) / 1000000));
-
- return 0;
+ return ret;
}
+
arch_initcall(omap2xxx_clk_arch_init);