mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-12 03:06:46 +07:00
2a52220c89
Not all devices use proc_comm and determining if a clock is local vs. remote is fragile when done by comparing clk_ops pointers. Instead, implement an is_local() function for all clk_ops to determine if the clock is local. Doing this allows us to remove the last references to clk_ops_pcom from clock.c and compile it for targets with CONFIG_MSM_PROC_COMM=n. We don't need to set the clk_ops at runtime until 7x30 local clock detection comes in. Right now it's just complicating things so just set the ops pointer statically. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
139 lines
3.1 KiB
C
139 lines
3.1 KiB
C
/*
|
|
* Copyright (C) 2007 Google, Inc.
|
|
* Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved.
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/stddef.h>
|
|
#include <mach/clk.h>
|
|
|
|
#include "proc_comm.h"
|
|
#include "clock.h"
|
|
#include "clock-pcom.h"
|
|
|
|
/*
|
|
* glue for the proc_comm interface
|
|
*/
|
|
int pc_clk_enable(unsigned id)
|
|
{
|
|
int rc = msm_proc_comm(PCOM_CLKCTL_RPC_ENABLE, &id, NULL);
|
|
if (rc < 0)
|
|
return rc;
|
|
else
|
|
return (int)id < 0 ? -EINVAL : 0;
|
|
}
|
|
|
|
void pc_clk_disable(unsigned id)
|
|
{
|
|
msm_proc_comm(PCOM_CLKCTL_RPC_DISABLE, &id, NULL);
|
|
}
|
|
|
|
int pc_clk_reset(unsigned id, enum clk_reset_action action)
|
|
{
|
|
int rc;
|
|
|
|
if (action == CLK_RESET_ASSERT)
|
|
rc = msm_proc_comm(PCOM_CLKCTL_RPC_RESET_ASSERT, &id, NULL);
|
|
else
|
|
rc = msm_proc_comm(PCOM_CLKCTL_RPC_RESET_DEASSERT, &id, NULL);
|
|
|
|
if (rc < 0)
|
|
return rc;
|
|
else
|
|
return (int)id < 0 ? -EINVAL : 0;
|
|
}
|
|
|
|
int pc_clk_set_rate(unsigned id, unsigned rate)
|
|
{
|
|
/* The rate _might_ be rounded off to the nearest KHz value by the
|
|
* remote function. So a return value of 0 doesn't necessarily mean
|
|
* that the exact rate was set successfully.
|
|
*/
|
|
int rc = msm_proc_comm(PCOM_CLKCTL_RPC_SET_RATE, &id, &rate);
|
|
if (rc < 0)
|
|
return rc;
|
|
else
|
|
return (int)id < 0 ? -EINVAL : 0;
|
|
}
|
|
|
|
int pc_clk_set_min_rate(unsigned id, unsigned rate)
|
|
{
|
|
int rc = msm_proc_comm(PCOM_CLKCTL_RPC_MIN_RATE, &id, &rate);
|
|
if (rc < 0)
|
|
return rc;
|
|
else
|
|
return (int)id < 0 ? -EINVAL : 0;
|
|
}
|
|
|
|
int pc_clk_set_max_rate(unsigned id, unsigned rate)
|
|
{
|
|
int rc = msm_proc_comm(PCOM_CLKCTL_RPC_MAX_RATE, &id, &rate);
|
|
if (rc < 0)
|
|
return rc;
|
|
else
|
|
return (int)id < 0 ? -EINVAL : 0;
|
|
}
|
|
|
|
int pc_clk_set_flags(unsigned id, unsigned flags)
|
|
{
|
|
int rc = msm_proc_comm(PCOM_CLKCTL_RPC_SET_FLAGS, &id, &flags);
|
|
if (rc < 0)
|
|
return rc;
|
|
else
|
|
return (int)id < 0 ? -EINVAL : 0;
|
|
}
|
|
|
|
unsigned pc_clk_get_rate(unsigned id)
|
|
{
|
|
if (msm_proc_comm(PCOM_CLKCTL_RPC_RATE, &id, NULL))
|
|
return 0;
|
|
else
|
|
return id;
|
|
}
|
|
|
|
unsigned pc_clk_is_enabled(unsigned id)
|
|
{
|
|
if (msm_proc_comm(PCOM_CLKCTL_RPC_ENABLED, &id, NULL))
|
|
return 0;
|
|
else
|
|
return id;
|
|
}
|
|
|
|
long pc_clk_round_rate(unsigned id, unsigned rate)
|
|
{
|
|
|
|
/* Not really supported; pc_clk_set_rate() does rounding on it's own. */
|
|
return rate;
|
|
}
|
|
|
|
static bool pc_clk_is_local(unsigned id)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
struct clk_ops clk_ops_pcom = {
|
|
.enable = pc_clk_enable,
|
|
.disable = pc_clk_disable,
|
|
.auto_off = pc_clk_disable,
|
|
.reset = pc_clk_reset,
|
|
.set_rate = pc_clk_set_rate,
|
|
.set_min_rate = pc_clk_set_min_rate,
|
|
.set_max_rate = pc_clk_set_max_rate,
|
|
.set_flags = pc_clk_set_flags,
|
|
.get_rate = pc_clk_get_rate,
|
|
.is_enabled = pc_clk_is_enabled,
|
|
.round_rate = pc_clk_round_rate,
|
|
.is_local = pc_clk_is_local,
|
|
};
|