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clk: mb86s7x: Drop non-building driver

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It fails to build once we introduce the ARCH_MB86S7X Kconfig symbol:

  drivers/clk/clk-mb86s7x.c:27:10: fatal error: soc/mb86s7x/scb_mhu.h: No such file or directory
   #include <soc/mb86s7x/scb_mhu.h>
            ^~~~~~~~~~~~~~~~~~~~~~~
  compilation terminated.

And when commenting out that line, we get:

  drivers/clk/clk-mb86s7x.c: In function 'crg_gate_control':
  drivers/clk/clk-mb86s7x.c:72:8: error: implicit declaration of function 'mb86s7x_send_packet' [-Werror=implicit-function-declaration]
    ret = mb86s7x_send_packet(CMD_PERI_CLOCK_GATE_SET_REQ,
          ^~~~~~~~~~~~~~~~~~~
  drivers/clk/clk-mb86s7x.c:72:28: error: 'CMD_PERI_CLOCK_GATE_SET_REQ' undeclared (first use in this function)
    ret = mb86s7x_send_packet(CMD_PERI_CLOCK_GATE_SET_REQ,
                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/clk/clk-mb86s7x.c:72:28: note: each undeclared identifier is reported only once for each function it appears in
  drivers/clk/clk-mb86s7x.c: In function 'crg_rate_control':
  drivers/clk/clk-mb86s7x.c:116:10: error: 'CMD_PERI_CLOCK_RATE_SET_REQ' undeclared (first use in this function)
     code = CMD_PERI_CLOCK_RATE_SET_REQ;
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/clk/clk-mb86s7x.c:121:10: error: 'CMD_PERI_CLOCK_RATE_GET_REQ' undeclared (first use in this function); did you mean 'CMD_PERI_CLOCK_RATE_SET_REQ'?
     code = CMD_PERI_CLOCK_RATE_GET_REQ;
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~
            CMD_PERI_CLOCK_RATE_SET_REQ
  drivers/clk/clk-mb86s7x.c: In function 'mhu_cluster_rate':
  drivers/clk/clk-mb86s7x.c:276:10: error: 'CMD_CPU_CLOCK_RATE_GET_REQ' undeclared (first use in this function)
     code = CMD_CPU_CLOCK_RATE_GET_REQ;
            ^~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/clk/clk-mb86s7x.c:278:10: error: 'CMD_CPU_CLOCK_RATE_SET_REQ' undeclared (first use in this function); did you mean 'CMD_CPU_CLOCK_RATE_GET_REQ'?
     code = CMD_CPU_CLOCK_RATE_SET_REQ;
            ^~~~~~~~~~~~~~~~~~~~~~~~~~
            CMD_CPU_CLOCK_RATE_GET_REQ
  cc1: some warnings being treated as errors
  scripts/Makefile.build:302: recipe for target
  'drivers/clk/clk-mb86s7x.o' failed
  make[2]: *** [drivers/clk/clk-mb86s7x.o] Error 1

Remove the driver for now.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Andreas Färber 2017-08-25 00:52:36 +02:00 committed by Stephen Boyd
parent df2f845167
commit 8bb48f79ea
2 changed files with 0 additions and 391 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/clk/Makefile
View File

@ -29,7 +29,6 @@ obj-$(CONFIG_COMMON_CLK_GEMINI) += clk-gemini.o
obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o
obj-$(CONFIG_CLK_HSDK) += clk-hsdk-pll.o
obj-$(CONFIG_COMMON_CLK_MAX77686) += clk-max77686.o
obj-$(CONFIG_ARCH_MB86S7X) += clk-mb86s7x.o
obj-$(CONFIG_ARCH_MOXART) += clk-moxart.o
obj-$(CONFIG_ARCH_NOMADIK) += clk-nomadik.o
obj-$(CONFIG_ARCH_NSPIRE) += clk-nspire.o

390
drivers/clk/clk-mb86s7x.c
View File

@ -1,390 +0,0 @@
/*
* Copyright (C) 2013-2015 FUJITSU SEMICONDUCTOR LIMITED
* Copyright (C) 2015 Linaro Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2 of the License.
*
* 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/clkdev.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/cpu.h>
#include <linux/clk-provider.h>
#include <linux/spinlock.h>
#include <linux/module.h>
#include <linux/topology.h>
#include <linux/mailbox_client.h>
#include <linux/platform_device.h>
#include <soc/mb86s7x/scb_mhu.h>
#define to_crg_clk(p) container_of(p, struct crg_clk, hw)
#define to_clc_clk(p) container_of(p, struct cl_clk, hw)
struct mb86s7x_peri_clk {
u32 payload_size;
u32 cntrlr;
u32 domain;
u32 port;
u32 en;
u64 frequency;
} __packed __aligned(4);
struct hack_rate {
unsigned clk_id;
unsigned long rate;
int gated;
};
struct crg_clk {
struct clk_hw hw;
u8 cntrlr, domain, port;
};
static int crg_gate_control(struct clk_hw *hw, int en)
{
struct crg_clk *crgclk = to_crg_clk(hw);
struct mb86s7x_peri_clk cmd;
int ret;
cmd.payload_size = sizeof(cmd);
cmd.cntrlr = crgclk->cntrlr;
cmd.domain = crgclk->domain;
cmd.port = crgclk->port;
cmd.en = en;
/* Port is UngatedCLK */
if (cmd.port == 8)
return en ? 0 : -EINVAL;
pr_debug("%s:%d CMD Cntrlr-%u Dom-%u Port-%u En-%u}\n",
__func__, __LINE__, cmd.cntrlr,
cmd.domain, cmd.port, cmd.en);
ret = mb86s7x_send_packet(CMD_PERI_CLOCK_GATE_SET_REQ,
&cmd, sizeof(cmd));
if (ret < 0) {
pr_err("%s:%d failed!\n", __func__, __LINE__);
return ret;
}
pr_debug("%s:%d REP Cntrlr-%u Dom-%u Port-%u En-%u}\n",
__func__, __LINE__, cmd.cntrlr,
cmd.domain, cmd.port, cmd.en);
/* If the request was rejected */
if (cmd.en != en)
ret = -EINVAL;
else
ret = 0;
return ret;
}
static int crg_port_prepare(struct clk_hw *hw)
{
return crg_gate_control(hw, 1);
}
static void crg_port_unprepare(struct clk_hw *hw)
{
crg_gate_control(hw, 0);
}
static int
crg_rate_control(struct clk_hw *hw, int set, unsigned long *rate)
{
struct crg_clk *crgclk = to_crg_clk(hw);
struct mb86s7x_peri_clk cmd;
int code, ret;
cmd.payload_size = sizeof(cmd);
cmd.cntrlr = crgclk->cntrlr;
cmd.domain = crgclk->domain;
cmd.port = crgclk->port;
cmd.frequency = *rate;
if (set) {
code = CMD_PERI_CLOCK_RATE_SET_REQ;
pr_debug("%s:%d CMD Cntrlr-%u Dom-%u Port-%u Rate-SET %lluHz}\n",
__func__, __LINE__, cmd.cntrlr,
cmd.domain, cmd.port, cmd.frequency);
} else {
code = CMD_PERI_CLOCK_RATE_GET_REQ;
pr_debug("%s:%d CMD Cntrlr-%u Dom-%u Port-%u Rate-GET}\n",
__func__, __LINE__, cmd.cntrlr,
cmd.domain, cmd.port);
}
ret = mb86s7x_send_packet(code, &cmd, sizeof(cmd));
if (ret < 0) {
pr_err("%s:%d failed!\n", __func__, __LINE__);
return ret;
}
if (set)
pr_debug("%s:%d REP Cntrlr-%u Dom-%u Port-%u Rate-SET %lluHz}\n",
__func__, __LINE__, cmd.cntrlr,
cmd.domain, cmd.port, cmd.frequency);
else
pr_debug("%s:%d REP Cntrlr-%u Dom-%u Port-%u Rate-GOT %lluHz}\n",
__func__, __LINE__, cmd.cntrlr,
cmd.domain, cmd.port, cmd.frequency);
*rate = cmd.frequency;
return 0;
}
static unsigned long
crg_port_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
{
unsigned long rate;
crg_rate_control(hw, 0, &rate);
return rate;
}
static long
crg_port_round_rate(struct clk_hw *hw,
unsigned long rate, unsigned long *pr)
{
return rate;
}
static int
crg_port_set_rate(struct clk_hw *hw,
unsigned long rate, unsigned long parent_rate)
{
return crg_rate_control(hw, 1, &rate);
}
const struct clk_ops crg_port_ops = {
.prepare = crg_port_prepare,
.unprepare = crg_port_unprepare,
.recalc_rate = crg_port_recalc_rate,
.round_rate = crg_port_round_rate,
.set_rate = crg_port_set_rate,
};
struct mb86s70_crg11 {
struct mutex lock; /* protects CLK populating and searching */
};
static struct clk *crg11_get(struct of_phandle_args *clkspec, void *data)
{
struct mb86s70_crg11 *crg11 = data;
struct clk_init_data init;
u32 cntrlr, domain, port;
struct crg_clk *crgclk;
struct clk *clk;
char clkp[20];
if (clkspec->args_count != 3)
return ERR_PTR(-EINVAL);
cntrlr = clkspec->args[0];
domain = clkspec->args[1];
port = clkspec->args[2];
if (port > 7)
snprintf(clkp, 20, "UngatedCLK%d_%X", cntrlr, domain);
else
snprintf(clkp, 20, "CLK%d_%X_%d", cntrlr, domain, port);
mutex_lock(&crg11->lock);
clk = __clk_lookup(clkp);
if (clk) {
mutex_unlock(&crg11->lock);
return clk;
}
crgclk = kzalloc(sizeof(*crgclk), GFP_KERNEL);
if (!crgclk) {
mutex_unlock(&crg11->lock);
return ERR_PTR(-ENOMEM);
}
init.name = clkp;
init.num_parents = 0;
init.ops = &crg_port_ops;
init.flags = 0;
crgclk->hw.init = &init;
crgclk->cntrlr = cntrlr;
crgclk->domain = domain;
crgclk->port = port;
clk = clk_register(NULL, &crgclk->hw);
if (IS_ERR(clk))
pr_err("%s:%d Error!\n", __func__, __LINE__);
else
pr_debug("Registered %s\n", clkp);
clk_register_clkdev(clk, clkp, NULL);
mutex_unlock(&crg11->lock);
return clk;
}
static void __init crg_port_init(struct device_node *node)
{
struct mb86s70_crg11 *crg11;
crg11 = kzalloc(sizeof(*crg11), GFP_KERNEL);
if (!crg11)
return;
mutex_init(&crg11->lock);
of_clk_add_provider(node, crg11_get, crg11);
}
CLK_OF_DECLARE(crg11_gate, "fujitsu,mb86s70-crg11", crg_port_init);
struct cl_clk {
struct clk_hw hw;
int cluster;
};
struct mb86s7x_cpu_freq {
u32 payload_size;
u32 cluster_class;
u32 cluster_id;
u32 cpu_id;
u64 frequency;
};
static void mhu_cluster_rate(struct clk_hw *hw, unsigned long *rate, int get)
{
struct cl_clk *clc = to_clc_clk(hw);
struct mb86s7x_cpu_freq cmd;
int code, ret;
cmd.payload_size = sizeof(cmd);
cmd.cluster_class = 0;
cmd.cluster_id = clc->cluster;
cmd.cpu_id = 0;
cmd.frequency = *rate;
if (get)
code = CMD_CPU_CLOCK_RATE_GET_REQ;
else
code = CMD_CPU_CLOCK_RATE_SET_REQ;
pr_debug("%s:%d CMD Cl_Class-%u CL_ID-%u CPU_ID-%u Freq-%llu}\n",
__func__, __LINE__, cmd.cluster_class,
cmd.cluster_id, cmd.cpu_id, cmd.frequency);
ret = mb86s7x_send_packet(code, &cmd, sizeof(cmd));
if (ret < 0) {
pr_err("%s:%d failed!\n", __func__, __LINE__);
return;
}
pr_debug("%s:%d REP Cl_Class-%u CL_ID-%u CPU_ID-%u Freq-%llu}\n",
__func__, __LINE__, cmd.cluster_class,
cmd.cluster_id, cmd.cpu_id, cmd.frequency);
*rate = cmd.frequency;
}
static unsigned long
clc_recalc_rate(struct clk_hw *hw, unsigned long unused)
{
unsigned long rate;
mhu_cluster_rate(hw, &rate, 1);
return rate;
}
static long
clc_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *unused)
{
return rate;
}
static int
clc_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long unused)
{
unsigned long res = rate;
mhu_cluster_rate(hw, &res, 0);
return (res == rate) ? 0 : -EINVAL;
}
static struct clk_ops clk_clc_ops = {
.recalc_rate = clc_recalc_rate,
.round_rate = clc_round_rate,
.set_rate = clc_set_rate,
};
static struct clk_hw *mb86s7x_clclk_register(struct device *cpu_dev)
{
struct clk_init_data init;
struct cl_clk *clc;
int ret;
clc = kzalloc(sizeof(*clc), GFP_KERNEL);
if (!clc)
return ERR_PTR(-ENOMEM);
clc->hw.init = &init;
clc->cluster = topology_physical_package_id(cpu_dev->id);
init.name = dev_name(cpu_dev);
init.ops = &clk_clc_ops;
init.flags = CLK_GET_RATE_NOCACHE;
init.num_parents = 0;
ret = devm_clk_hw_register(cpu_dev, &clc->hw);
if (ret)
return ERR_PTR(ret);
return &clc->hw;
}
static int mb86s7x_clclk_of_init(void)
{
int cpu, ret = -ENODEV;
struct device_node *np;
struct clk_hw *hw;
np = of_find_compatible_node(NULL, NULL, "fujitsu,mb86s70-scb-1.0");
if (!np || !of_device_is_available(np))
goto exit;
for_each_possible_cpu(cpu) {
struct device *cpu_dev = get_cpu_device(cpu);
if (!cpu_dev) {
pr_err("failed to get cpu%d device\n", cpu);
continue;
}
hw = mb86s7x_clclk_register(cpu_dev);
if (IS_ERR(hw)) {
pr_err("failed to register cpu%d clock\n", cpu);
continue;
}
if (clk_hw_register_clkdev(hw, NULL, dev_name(cpu_dev))) {
pr_err("failed to register cpu%d clock lookup\n", cpu);
continue;
}
pr_debug("registered clk for %s\n", dev_name(cpu_dev));
}
ret = 0;
platform_device_register_simple("arm-bL-cpufreq-dt", -1, NULL, 0);
exit:
of_node_put(np);
return ret;
}
module_init(mb86s7x_clclk_of_init);