diff options
Diffstat (limited to 'arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c')
| -rw-r--r-- | arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c index b64d717bfab6..96c5cdc718c8 100644 --- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c +++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * OMAP2xxx DVFS virtual clock functions * @@ -11,10 +12,6 @@ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren, * Gordon McNutt and RidgeRun, 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. - * * XXX Some of this code should be replaceable by the upcoming OPP layer * code. However, some notion of "rate set" is probably still necessary * for OMAP2xxx at least. Rate sets should be generalized so they can be @@ -42,6 +39,8 @@ #include "sdrc.h" #include "sram.h" +static u16 cpu_mask; + const struct prcm_config *curr_prcm_set; const struct prcm_config *rate_table; @@ -58,7 +57,7 @@ static unsigned long sys_ck_rate; * * Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set. */ -unsigned long omap2_table_mpu_recalc(struct clk_hw *clk, +static unsigned long omap2_table_mpu_recalc(struct clk_hw *clk, unsigned long parent_rate) { return curr_prcm_set->mpu_speed; @@ -71,8 +70,8 @@ unsigned long omap2_table_mpu_recalc(struct clk_hw *clk, * Some might argue L3-DDR, others ARM, others IVA. This code is simple and * just uses the ARM rates. */ -long omap2_round_to_table_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int omap2_determine_rate_to_table(struct clk_hw *hw, + struct clk_rate_request *req) { const struct prcm_config *ptr; long highest_rate; @@ -88,15 +87,17 @@ long omap2_round_to_table_rate(struct clk_hw *hw, unsigned long rate, highest_rate = ptr->mpu_speed; /* Can check only after xtal frequency check */ - if (ptr->mpu_speed <= rate) + if (ptr->mpu_speed <= req->rate) break; } - return highest_rate; + req->rate = highest_rate; + + return 0; } /* Sets basic clocks based on the specified rate */ -int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) +static int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { u32 cur_rate, done_rate, bypass = 0; const struct prcm_config *prcm; @@ -163,14 +164,14 @@ int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate, } /** - * omap2xxx_clkt_vps_check_bootloader_rate - determine which of the rate + * omap2xxx_clkt_vps_check_bootloader_rates - determine which of the rate * table sets matches the current CORE DPLL hardware rate * * Check the MPU rate set by bootloader. Sets the 'curr_prcm_set' * global to point to the active rate set when found; otherwise, sets * it to NULL. No return value; */ -void omap2xxx_clkt_vps_check_bootloader_rates(void) +static void omap2xxx_clkt_vps_check_bootloader_rates(void) { const struct prcm_config *prcm = NULL; unsigned long rate; @@ -196,7 +197,7 @@ void omap2xxx_clkt_vps_check_bootloader_rates(void) * sys_ck rate, but before the virt_prcm_set clock rate is * recalculated. No return value. */ -void omap2xxx_clkt_vps_late_init(void) +static void omap2xxx_clkt_vps_late_init(void) { struct clk *c; @@ -216,7 +217,7 @@ void omap2xxx_clkt_vps_late_init(void) static const struct clk_ops virt_prcm_set_ops = { .recalc_rate = &omap2_table_mpu_recalc, .set_rate = &omap2_select_table_rate, - .round_rate = &omap2_round_to_table_rate, + .determine_rate = &omap2_determine_rate_to_table, }; /** @@ -238,7 +239,7 @@ void omap2xxx_clkt_vps_init(void) hw = kzalloc(sizeof(*hw), GFP_KERNEL); if (!hw) - goto cleanup; + return; init.name = "virt_prcm_set"; init.ops = &virt_prcm_set_ops; init.parent_names = &parent_name; @@ -247,9 +248,12 @@ void omap2xxx_clkt_vps_init(void) hw->hw.init = &init; clk = clk_register(NULL, &hw->hw); + if (IS_ERR(clk)) { + printk(KERN_ERR "Failed to register clock\n"); + kfree(hw); + return; + } + clkdev_create(clk, "cpufreq_ck", NULL); - return; -cleanup: - kfree(hw); } #endif |