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MSM clock updates for 3.11.

Browse Source 
Per Stephen Boyd's coverletter:
 
 Resending to collect higher level maintainer acks per Olof's request.
 The plan is to push this patchset through MSM to the arm-soc tree.
 
 This patchset moves the existing MSM clock code and affected drivers
 to the common clock framework. A prerequisite of moving to the common
 clock framework is to use clk_prepare() and clk_enable() so the first
 few patches migrate drivers to that call (clk_prepare() is a no-op on
 MSM right now). It also removes some custom clock APIs that MSM
 provides and finally moves the proc_comm clock code to the common
 struct clk.
 
 This patch series will be used as the foundation of the MSM 8660/8960
 clock code that I plan to send out after this series.
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Merge tag 'msm-clock-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/late

From David Brown:
MSM clock updates for 3.11.

Per Stephen Boyd's coverletter:

Resending to collect higher level maintainer acks per Olof's request.
The plan is to push this patchset through MSM to the arm-soc tree.

This patchset moves the existing MSM clock code and affected drivers
to the common clock framework. A prerequisite of moving to the common
clock framework is to use clk_prepare() and clk_enable() so the first
few patches migrate drivers to that call (clk_prepare() is a no-op on
MSM right now). It also removes some custom clock APIs that MSM
provides and finally moves the proc_comm clock code to the common
struct clk.

This patch series will be used as the foundation of the MSM 8660/8960
clock code that I plan to send out after this series.

* tag 'msm-clock-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
  ARM: msm: Migrate to common clock framework
  ARM: msm: Make proc_comm clock control into a platform driver
  ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver
  ARM: msm: Remove clock-7x30.h include file
  ARM: msm: Remove custom clk_set_{max,min}_rate() API
  ARM: msm: Remove custom clk_set_flags() API
  msm: iommu: Use clk_set_rate() instead of clk_set_min_rate()
  msm: iommu: Convert to clk_prepare/unprepare
  msm_sdcc: Convert to clk_prepare/unprepare
  usb: otg: msm: Convert to clk_prepare/unprepare
  msm_serial: Use devm_clk_get() and properly return errors
  msm_serial: Convert to clk_prepare/unprepare

Acked-by: Chris Ball <cjb@laptop.org> # for msm_sdcc.c
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2013-06-27 17:04:27 -07:00
commit 8c3d913888
24 changed files with 244 additions and 660 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/Kconfig
View File

@ -623,8 +623,8 @@ config ARCH_MSM
bool "Qualcomm MSM"
select ARCH_REQUIRE_GPIOLIB
select CLKDEV_LOOKUP
select COMMON_CLK
select GENERIC_CLOCKEVENTS
select HAVE_CLK
help
Support for Qualcomm MSM/QSD based systems. This runs on the
apps processor of the MSM/QSD and depends on a shared memory

10
arch/arm/mach-msm/Makefile
View File

@ -1,16 +1,18 @@
obj-y += io.o timer.o
obj-y += clock.o
obj-$(CONFIG_DEBUG_FS) += clock-debug.o
obj-$(CONFIG_MSM_VIC) += irq-vic.o
obj-$(CONFIG_MSM_IOMMU) += devices-iommu.o
obj-$(CONFIG_ARCH_MSM7X00A) += dma.o irq.o
obj-$(CONFIG_ARCH_MSM7X30) += dma.o
obj-$(CONFIG_ARCH_QSD8X50) += dma.o sirc.o
obj-$(CONFIG_ARCH_MSM7X00A) += irq.o
obj-$(CONFIG_ARCH_QSD8X50) += sirc.o
obj-$(CONFIG_MSM_PROC_COMM) += proc_comm.o clock-pcom.o vreg.o
obj-$(CONFIG_ARCH_MSM7X00A) += dma.o
obj-$(CONFIG_ARCH_MSM7X30) += dma.o
obj-$(CONFIG_ARCH_QSD8X50) += dma.o
obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o
obj-$(CONFIG_MSM_SMD) += last_radio_log.o
obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o

2
arch/arm/mach-msm/board-halibut.c
View File

@ -59,6 +59,7 @@ static struct platform_device smc91x_device = {
};
static struct platform_device *devices[] __initdata = {
&msm_clock_7x01a,
&msm_device_gpio_7201,
&msm_device_uart3,
&msm_device_smd,
@ -91,7 +92,6 @@ static void __init halibut_fixup(struct tag *tags, char **cmdline,
static void __init halibut_map_io(void)
{
msm_map_common_io();
msm_clock_init(msm_clocks_7x01a, msm_num_clocks_7x01a);
}
static void __init halibut_init_late(void)

2
arch/arm/mach-msm/board-msm7x30.c
View File

@ -89,6 +89,7 @@ struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = {
};
static struct platform_device *devices[] __initdata = {
&msm_clock_7x30,
&msm_device_gpio_7x30,
#if defined(CONFIG_SERIAL_MSM) || defined(CONFIG_MSM_SERIAL_DEBUGGER)
&msm_device_uart2,
@ -116,7 +117,6 @@ static void __init msm7x30_init(void)
static void __init msm7x30_map_io(void)
{
msm_map_msm7x30_io();
msm_clock_init(msm_clocks_7x30, msm_num_clocks_7x30);
}
static void __init msm7x30_init_late(void)

2
arch/arm/mach-msm/board-qsd8x50.c
View File

@ -89,6 +89,7 @@ static struct msm_otg_platform_data msm_otg_pdata = {
};
static struct platform_device *devices[] __initdata = {
&msm_clock_8x50,
&msm_device_gpio_8x50,
&msm_device_uart3,
&msm_device_smd,
@ -172,7 +173,6 @@ static void __init qsd8x50_init_mmc(void)
static void __init qsd8x50_map_io(void)
{
msm_map_qsd8x50_io();
msm_clock_init(msm_clocks_8x50, msm_num_clocks_8x50);
}
static void __init qsd8x50_init_irq(void)

19
arch/arm/mach-msm/board-trout-panel.c
View File

@ -7,7 +7,6 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/leds.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <asm/io.h>
@ -19,6 +18,7 @@
#include "board-trout.h"
#include "proc_comm.h"
#include "clock-pcom.h"
#include "devices.h"
#define TROUT_DEFAULT_BACKLIGHT_BRIGHTNESS 255
@ -170,7 +170,6 @@ static struct mddi_table mddi_toshiba_init_table[] = {
#define INTMASK_VWAKEOUT (1U << 0)
static struct clk *gp_clk;
static int trout_new_backlight = 1;
static struct vreg *vreg_mddi_1v5;
static struct vreg *vreg_lcm_2v85;
@ -273,18 +272,14 @@ int __init trout_init_panel(void)
} else {
uint32_t config = PCOM_GPIO_CFG(27, 1, GPIO_OUTPUT,
GPIO_NO_PULL, GPIO_8MA);
uint32_t id = P_GP_CLK;
uint32_t rate = 19200000;
msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &config, 0);
gp_clk = clk_get(NULL, "gp_clk");
if (IS_ERR(gp_clk)) {
printk(KERN_ERR "trout_init_panel: could not get gp"
"clock\n");
gp_clk = NULL;
}
rc = clk_set_rate(gp_clk, 19200000);
if (rc)
printk(KERN_ERR "trout_init_panel: set clock rate "
"failed\n");
msm_proc_comm(PCOM_CLKCTL_RPC_SET_RATE, &id, &rate);
if (id < 0)
pr_err("trout_init_panel: set clock rate failed\n");
}
rc = platform_device_register(&msm_device_mdp);

3
arch/arm/mach-msm/board-trout.c
View File

@ -36,6 +36,7 @@
extern int trout_init_mmc(unsigned int);
static struct platform_device *devices[] __initdata = {
&msm_clock_7x01a,
&msm_device_gpio_7201,
&msm_device_uart3,
&msm_device_smd,
@ -94,8 +95,6 @@ static void __init trout_map_io(void)
/* route UART3 to the "H2W" extended usb connector */
writeb(0x80, TROUT_CPLD_BASE + 0x00);
#endif
msm_clock_init(msm_clocks_7x01a, msm_num_clocks_7x01a);
}
static void __init trout_init_late(void)

155
arch/arm/mach-msm/clock-7x30.h
View File

@ -1,155 +0,0 @@
/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*/
#ifndef __ARCH_ARM_MACH_MSM_CLOCK_7X30_H
#define __ARCH_ARM_MACH_MSM_CLOCK_7X30_H
enum {
L_7X30_NONE_CLK = -1,
L_7X30_ADM_CLK,
L_7X30_I2C_CLK,
L_7X30_I2C_2_CLK,
L_7X30_QUP_I2C_CLK,
L_7X30_UART1DM_CLK,
L_7X30_UART1DM_P_CLK,
L_7X30_UART2DM_CLK,
L_7X30_UART2DM_P_CLK,
L_7X30_EMDH_CLK,
L_7X30_EMDH_P_CLK,
L_7X30_PMDH_CLK,
L_7X30_PMDH_P_CLK,
L_7X30_GRP_2D_CLK,
L_7X30_GRP_2D_P_CLK,
L_7X30_GRP_3D_SRC_CLK,
L_7X30_GRP_3D_CLK,
L_7X30_GRP_3D_P_CLK,
L_7X30_IMEM_CLK,
L_7X30_SDC1_CLK,
L_7X30_SDC1_P_CLK,
L_7X30_SDC2_CLK,
L_7X30_SDC2_P_CLK,
L_7X30_SDC3_CLK,
L_7X30_SDC3_P_CLK,
L_7X30_SDC4_CLK,
L_7X30_SDC4_P_CLK,
L_7X30_MDP_CLK,
L_7X30_MDP_P_CLK,
L_7X30_MDP_LCDC_PCLK_CLK,
L_7X30_MDP_LCDC_PAD_PCLK_CLK,
L_7X30_MDP_VSYNC_CLK,
L_7X30_MI2S_CODEC_RX_M_CLK,
L_7X30_MI2S_CODEC_RX_S_CLK,
L_7X30_MI2S_CODEC_TX_M_CLK,
L_7X30_MI2S_CODEC_TX_S_CLK,
L_7X30_MI2S_M_CLK,
L_7X30_MI2S_S_CLK,
L_7X30_LPA_CODEC_CLK,
L_7X30_LPA_CORE_CLK,
L_7X30_LPA_P_CLK,
L_7X30_MIDI_CLK,
L_7X30_MDC_CLK,
L_7X30_ROTATOR_IMEM_CLK,
L_7X30_ROTATOR_P_CLK,
L_7X30_SDAC_M_CLK,
L_7X30_SDAC_CLK,
L_7X30_UART1_CLK,
L_7X30_UART2_CLK,
L_7X30_UART3_CLK,
L_7X30_TV_CLK,
L_7X30_TV_DAC_CLK,
L_7X30_TV_ENC_CLK,
L_7X30_HDMI_CLK,
L_7X30_TSIF_REF_CLK,
L_7X30_TSIF_P_CLK,
L_7X30_USB_HS_SRC_CLK,
L_7X30_USB_HS_CLK,
L_7X30_USB_HS_CORE_CLK,
L_7X30_USB_HS_P_CLK,
L_7X30_USB_HS2_CLK,
L_7X30_USB_HS2_CORE_CLK,
L_7X30_USB_HS2_P_CLK,
L_7X30_USB_HS3_CLK,
L_7X30_USB_HS3_CORE_CLK,
L_7X30_USB_HS3_P_CLK,
L_7X30_VFE_CLK,
L_7X30_VFE_P_CLK,
L_7X30_VFE_MDC_CLK,
L_7X30_VFE_CAMIF_CLK,
L_7X30_CAMIF_PAD_P_CLK,
L_7X30_CAM_M_CLK,
L_7X30_JPEG_CLK,
L_7X30_JPEG_P_CLK,
L_7X30_VPE_CLK,
L_7X30_MFC_CLK,
L_7X30_MFC_DIV2_CLK,
L_7X30_MFC_P_CLK,
L_7X30_SPI_CLK,
L_7X30_SPI_P_CLK,
L_7X30_CSI0_CLK,
L_7X30_CSI0_VFE_CLK,
L_7X30_CSI0_P_CLK,
L_7X30_CSI1_CLK,
L_7X30_CSI1_VFE_CLK,
L_7X30_CSI1_P_CLK,
L_7X30_GLBL_ROOT_CLK,
L_7X30_AXI_LI_VG_CLK,
L_7X30_AXI_LI_GRP_CLK,
L_7X30_AXI_LI_JPEG_CLK,
L_7X30_AXI_GRP_2D_CLK,
L_7X30_AXI_MFC_CLK,
L_7X30_AXI_VPE_CLK,
L_7X30_AXI_LI_VFE_CLK,
L_7X30_AXI_LI_APPS_CLK,
L_7X30_AXI_MDP_CLK,
L_7X30_AXI_IMEM_CLK,
L_7X30_AXI_LI_ADSP_A_CLK,
L_7X30_AXI_ROTATOR_CLK,
L_7X30_NR_CLKS
};
struct clk_ops;
extern struct clk_ops clk_ops_7x30;
struct clk_ops *clk_7x30_is_local(uint32_t id);
int clk_7x30_init(void);
void pll_enable(uint32_t pll);
void pll_disable(uint32_t pll);
extern int internal_pwr_rail_ctl_auto(unsigned rail_id, bool enable);
#define CLK_7X30(clk_name, clk_id, clk_dev, clk_flags) { \
.con_id = clk_name, \
.dev_id = clk_dev, \
.clk = &(struct clk){ \
.id = L_7X30_##clk_id, \
.remote_id = P_##clk_id, \
.flags = clk_flags, \
.dbg_name = #clk_id, \
}, \
}
#define CLK_7X30S(clk_name, l_id, r_id, clk_dev, clk_flags) { \
.con_id = clk_name, \
.dev_id = clk_dev, \
.clk = &(struct clk){ \
.id = L_7X30_##l_id, \
.remote_id = P_##r_id, \
.flags = clk_flags, \
.dbg_name = #l_id, \
.ops = &clk_ops_pcom, \
}, \
}
#endif

130
arch/arm/mach-msm/clock-debug.c
View File

@ -1,130 +0,0 @@
/*
* 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/kernel.h>
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/debugfs.h>
#include <linux/clk.h>
#include "clock.h"
static int clock_debug_rate_set(void *data, u64 val)
{
struct clk *clock = data;
int ret;
/* Only increases to max rate will succeed, but that's actually good
* for debugging purposes so we don't check for error. */
if (clock->flags & CLK_MAX)
clk_set_max_rate(clock, val);
if (clock->flags & CLK_MIN)
ret = clk_set_min_rate(clock, val);
else
ret = clk_set_rate(clock, val);
if (ret != 0)
printk(KERN_ERR "clk_set%s_rate failed (%d)\n",
(clock->flags & CLK_MIN) ? "_min" : "", ret);
return ret;
}
static int clock_debug_rate_get(void *data, u64 *val)
{
struct clk *clock = data;
*val = clk_get_rate(clock);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(clock_rate_fops, clock_debug_rate_get,
clock_debug_rate_set, "%llu\n");
static int clock_debug_enable_set(void *data, u64 val)
{
struct clk *clock = data;
int rc = 0;
if (val)
rc = clock->ops->enable(clock->id);
else
clock->ops->disable(clock->id);
return rc;
}
static int clock_debug_enable_get(void *data, u64 *val)
{
struct clk *clock = data;
*val = clock->ops->is_enabled(clock->id);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(clock_enable_fops, clock_debug_enable_get,
clock_debug_enable_set, "%llu\n");
static int clock_debug_local_get(void *data, u64 *val)
{
struct clk *clock = data;
*val = clock->ops->is_local(clock->id);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(clock_local_fops, clock_debug_local_get,
NULL, "%llu\n");
static struct dentry *debugfs_base;
int __init clock_debug_init(void)
{
debugfs_base = debugfs_create_dir("clk", NULL);
if (!debugfs_base)
return -ENOMEM;
return 0;
}
int __init clock_debug_add(struct clk *clock)
{
char temp[50], *ptr;
struct dentry *clk_dir;
if (!debugfs_base)
return -ENOMEM;
strlcpy(temp, clock->dbg_name, ARRAY_SIZE(temp));
for (ptr = temp; *ptr; ptr++)
*ptr = tolower(*ptr);
clk_dir = debugfs_create_dir(temp, debugfs_base);
if (!clk_dir)
return -ENOMEM;
if (!debugfs_create_file("rate", S_IRUGO | S_IWUSR, clk_dir,
clock, &clock_rate_fops))
goto error;
if (!debugfs_create_file("enable", S_IRUGO | S_IWUSR, clk_dir,
clock, &clock_enable_fops))
goto error;
if (!debugfs_create_file("is_local", S_IRUGO, clk_dir, clock,
&clock_local_fops))
goto error;
return 0;
error:
debugfs_remove_recursive(clk_dir);
return -ENOMEM;
}

151
arch/arm/mach-msm/clock-pcom.c
View File

@ -1,6 +1,6 @@
/*
* Copyright (C) 2007 Google, Inc.
* Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved.
* Copyright (c) 2007-2012, The Linux Foundation. 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
@ -13,20 +13,33 @@
*
*/
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/ctype.h>
#include <linux/stddef.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <mach/clk.h>
#include "proc_comm.h"
#include "clock.h"
#include "clock-pcom.h"
/*
* glue for the proc_comm interface
*/
static int pc_clk_enable(unsigned id)
struct clk_pcom {
unsigned id;
unsigned long flags;
struct msm_clk msm_clk;
};
static inline struct clk_pcom *to_clk_pcom(struct clk_hw *hw)
{
return container_of(to_msm_clk(hw), struct clk_pcom, msm_clk);
}
static int pc_clk_enable(struct clk_hw *hw)
{
unsigned id = to_clk_pcom(hw)->id;
int rc = msm_proc_comm(PCOM_CLKCTL_RPC_ENABLE, &id, NULL);
if (rc < 0)
return rc;
@ -34,14 +47,16 @@ static int pc_clk_enable(unsigned id)
return (int)id < 0 ? -EINVAL : 0;
}
static void pc_clk_disable(unsigned id)
static void pc_clk_disable(struct clk_hw *hw)
{
unsigned id = to_clk_pcom(hw)->id;
msm_proc_comm(PCOM_CLKCTL_RPC_DISABLE, &id, NULL);
}
int pc_clk_reset(unsigned id, enum clk_reset_action action)
static int pc_clk_reset(struct clk_hw *hw, enum clk_reset_action action)
{
int rc;
unsigned id = to_clk_pcom(hw)->id;
if (action == CLK_RESET_ASSERT)
rc = msm_proc_comm(PCOM_CLKCTL_RPC_RESET_ASSERT, &id, NULL);
@ -54,85 +69,109 @@ int pc_clk_reset(unsigned id, enum clk_reset_action action)
return (int)id < 0 ? -EINVAL : 0;
}
static int pc_clk_set_rate(unsigned id, unsigned rate)
static int pc_clk_set_rate(struct clk_hw *hw, unsigned long new_rate,
unsigned long p_rate)
{
/* The rate _might_ be rounded off to the nearest KHz value by the
struct clk_pcom *p = to_clk_pcom(hw);
unsigned id = p->id, rate = new_rate;
int rc;
/*
* 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 (p->flags & CLKFLAG_MIN)
rc = msm_proc_comm(PCOM_CLKCTL_RPC_MIN_RATE, &id, &rate);
else
rc = msm_proc_comm(PCOM_CLKCTL_RPC_SET_RATE, &id, &rate);
if (rc < 0)
return rc;
else
return (int)id < 0 ? -EINVAL : 0;
}
static 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;
}
static 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;
}
static 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;
}
static unsigned pc_clk_get_rate(unsigned id)
static unsigned long pc_clk_recalc_rate(struct clk_hw *hw, unsigned long p_rate)
{
unsigned id = to_clk_pcom(hw)->id;
if (msm_proc_comm(PCOM_CLKCTL_RPC_RATE, &id, NULL))
return 0;
else
return id;
}
static unsigned pc_clk_is_enabled(unsigned id)
static int pc_clk_is_enabled(struct clk_hw *hw)
{
unsigned id = to_clk_pcom(hw)->id;
if (msm_proc_comm(PCOM_CLKCTL_RPC_ENABLED, &id, NULL))
return 0;
else
return id;
}
static long pc_clk_round_rate(unsigned id, unsigned rate)
static long pc_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *p_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 = {
static 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,
.recalc_rate = pc_clk_recalc_rate,
.is_enabled = pc_clk_is_enabled,
.round_rate = pc_clk_round_rate,
.is_local = pc_clk_is_local,
};
static int msm_clock_pcom_probe(struct platform_device *pdev)
{
const struct pcom_clk_pdata *pdata = pdev->dev.platform_data;
int i, ret;
for (i = 0; i < pdata->num_lookups; i++) {
const struct clk_pcom_desc *desc = &pdata->lookup[i];
struct clk *c;
struct clk_pcom *p;
struct clk_hw *hw;
struct clk_init_data init;
p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
if (!p)
return -ENOMEM;
p->id = desc->id;
p->flags = desc->flags;
p->msm_clk.reset = pc_clk_reset;
hw = &p->msm_clk.hw;
hw->init = &init;
init.name = desc->name;
init.ops = &clk_ops_pcom;
init.num_parents = 0;
init.flags = CLK_IS_ROOT;
if (!(p->flags & CLKFLAG_AUTO_OFF))
init.flags |= CLK_IGNORE_UNUSED;
c = devm_clk_register(&pdev->dev, hw);
ret = clk_register_clkdev(c, desc->con, desc->dev);
if (ret)
return ret;
}
return 0;
}
static struct platform_driver msm_clock_pcom_driver = {
.probe = msm_clock_pcom_probe,
.driver = {
.name = "msm-clock-pcom",
.owner = THIS_MODULE,
},
};
module_platform_driver(msm_clock_pcom_driver);
MODULE_LICENSE("GPL v2");

31
arch/arm/mach-msm/clock-pcom.h
View File

@ -1,4 +1,5 @@
/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
/*
* Copyright (c) 2009-2012, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -120,21 +121,25 @@
#define P_NR_CLKS 102
struct clk_ops;
extern struct clk_ops clk_ops_pcom;
struct clk_pcom_desc {
unsigned id;
const char *name;
const char *con;
const char *dev;
unsigned long flags;
};
int pc_clk_reset(unsigned id, enum clk_reset_action action);
struct pcom_clk_pdata {
struct clk_pcom_desc *lookup;
u32 num_lookups;
};
#define CLK_PCOM(clk_name, clk_id, clk_dev, clk_flags) { \
.con_id = clk_name, \
.dev_id = clk_dev, \
.clk = &(struct clk){ \
.id = P_##clk_id, \
.remote_id = P_##clk_id, \
.ops = &clk_ops_pcom, \
.flags = clk_flags, \
.dbg_name = #clk_id, \
}, \
.id = P_##clk_id, \
.name = #clk_id, \
.con = clk_name, \
.dev = clk_dev, \
.flags = clk_flags, \
}
#endif

166
arch/arm/mach-msm/clock.c
View File

@ -1,7 +1,7 @@
/* arch/arm/mach-msm/clock.c
*
* Copyright (C) 2007 Google, Inc.
* Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved.
* Copyright (c) 2007-2012, The Linux Foundation. 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
@ -14,171 +14,15 @@
*
*/
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/err.h>
#include <linux/spinlock.h>
#include <linux/pm_qos.h>
#include <linux/mutex.h>
#include <linux/clk.h>
#include <linux/string.h>
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/clkdev.h>
#include "clock.h"
static DEFINE_MUTEX(clocks_mutex);
static DEFINE_SPINLOCK(clocks_lock);
static LIST_HEAD(clocks);
/*
* Standard clock functions defined in include/linux/clk.h
*/
int clk_enable(struct clk *clk)
{
unsigned long flags;
spin_lock_irqsave(&clocks_lock, flags);
clk->count++;
if (clk->count == 1)
clk->ops->enable(clk->id);
spin_unlock_irqrestore(&clocks_lock, flags);
return 0;
}
EXPORT_SYMBOL(clk_enable);
void clk_disable(struct clk *clk)
{
unsigned long flags;
spin_lock_irqsave(&clocks_lock, flags);
BUG_ON(clk->count == 0);
clk->count--;
if (clk->count == 0)
clk->ops->disable(clk->id);
spin_unlock_irqrestore(&clocks_lock, flags);
}
EXPORT_SYMBOL(clk_disable);
int clk_reset(struct clk *clk, enum clk_reset_action action)
{
return clk->ops->reset(clk->remote_id, action);
struct clk_hw *hw = __clk_get_hw(clk);
struct msm_clk *m = to_msm_clk(hw);
return m->reset(hw, action);
}
EXPORT_SYMBOL(clk_reset);
unsigned long clk_get_rate(struct clk *clk)
{
return clk->ops->get_rate(clk->id);
}
EXPORT_SYMBOL(clk_get_rate);
int clk_set_rate(struct clk *clk, unsigned long rate)
{
int ret;
if (clk->flags & CLKFLAG_MAX) {
ret = clk->ops->set_max_rate(clk->id, rate);
if (ret)
return ret;
}
if (clk->flags & CLKFLAG_MIN) {
ret = clk->ops->set_min_rate(clk->id, rate);
if (ret)
return ret;
}
if (clk->flags & CLKFLAG_MAX || clk->flags & CLKFLAG_MIN)
return ret;
return clk->ops->set_rate(clk->id, rate);
}
EXPORT_SYMBOL(clk_set_rate);
long clk_round_rate(struct clk *clk, unsigned long rate)
{
return clk->ops->round_rate(clk->id, rate);
}
EXPORT_SYMBOL(clk_round_rate);
int clk_set_min_rate(struct clk *clk, unsigned long rate)
{
return clk->ops->set_min_rate(clk->id, rate);
}
EXPORT_SYMBOL(clk_set_min_rate);
int clk_set_max_rate(struct clk *clk, unsigned long rate)
{
return clk->ops->set_max_rate(clk->id, rate);
}
EXPORT_SYMBOL(clk_set_max_rate);
int clk_set_parent(struct clk *clk, struct clk *parent)
{
return -ENOSYS;
}
EXPORT_SYMBOL(clk_set_parent);
struct clk *clk_get_parent(struct clk *clk)
{
return ERR_PTR(-ENOSYS);
}
EXPORT_SYMBOL(clk_get_parent);
int clk_set_flags(struct clk *clk, unsigned long flags)
{
if (clk == NULL || IS_ERR(clk))
return -EINVAL;
return clk->ops->set_flags(clk->id, flags);
}
EXPORT_SYMBOL(clk_set_flags);
/* EBI1 is the only shared clock that several clients want to vote on as of
* this commit. If this changes in the future, then it might be better to
* make clk_min_rate handle the voting or make ebi1_clk_set_min_rate more
* generic to support different clocks.
*/
static struct clk *ebi1_clk;
void __init msm_clock_init(struct clk_lookup *clock_tbl, unsigned num_clocks)
{
unsigned n;
mutex_lock(&clocks_mutex);
for (n = 0; n < num_clocks; n++) {
clkdev_add(&clock_tbl[n]);
list_add_tail(&clock_tbl[n].clk->list, &clocks);
}
mutex_unlock(&clocks_mutex);
ebi1_clk = clk_get(NULL, "ebi1_clk");
BUG_ON(ebi1_clk == NULL);
}
/* The bootloader and/or AMSS may have left various clocks enabled.
* Disable any clocks that belong to us (CLKFLAG_AUTO_OFF) but have
* not been explicitly enabled by a clk_enable() call.
*/
static int __init clock_late_init(void)
{
unsigned long flags;
struct clk *clk;
unsigned count = 0;
clock_debug_init();
mutex_lock(&clocks_mutex);
list_for_each_entry(clk, &clocks, list) {
clock_debug_add(clk);
if (clk->flags & CLKFLAG_AUTO_OFF) {
spin_lock_irqsave(&clocks_lock, flags);
if (!clk->count) {
count++;
clk->ops->auto_off(clk->id);
}
spin_unlock_irqrestore(&clocks_lock, flags);
}
}
mutex_unlock(&clocks_mutex);
pr_info("clock_late_init() disabled %d unused clocks\n", count);
return 0;
}
late_initcall(clock_late_init);

51
arch/arm/mach-msm/clock.h
View File

@ -1,7 +1,7 @@
/* arch/arm/mach-msm/clock.h
*
* Copyright (C) 2007 Google, Inc.
* Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved.
* Copyright (c) 2007-2012, The Linux Foundation. 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
@ -17,56 +17,27 @@
#ifndef __ARCH_ARM_MACH_MSM_CLOCK_H
#define __ARCH_ARM_MACH_MSM_CLOCK_H
#include <linux/init.h>
#include <linux/list.h>
#include <linux/clk-provider.h>
#include <mach/clk.h>
#define CLKFLAG_INVERT 0x00000001
#define CLKFLAG_NOINVERT 0x00000002
#define CLKFLAG_NONEST 0x00000004
#define CLKFLAG_NORESET 0x00000008
#define CLK_FIRST_AVAILABLE_FLAG 0x00000100
#define CLKFLAG_AUTO_OFF 0x00000200
#define CLKFLAG_MIN 0x00000400
#define CLKFLAG_MAX 0x00000800
struct clk_ops {
int (*enable)(unsigned id);
void (*disable)(unsigned id);
void (*auto_off)(unsigned id);
int (*reset)(unsigned id, enum clk_reset_action action);
int (*set_rate)(unsigned id, unsigned rate);
int (*set_min_rate)(unsigned id, unsigned rate);
int (*set_max_rate)(unsigned id, unsigned rate);
int (*set_flags)(unsigned id, unsigned flags);
unsigned (*get_rate)(unsigned id);
unsigned (*is_enabled)(unsigned id);
long (*round_rate)(unsigned id, unsigned rate);
bool (*is_local)(unsigned id);
};
struct clk {
uint32_t id;
uint32_t remote_id;
uint32_t count;
uint32_t flags;
struct clk_ops *ops;
const char *dbg_name;
struct list_head list;
};
#define OFF CLKFLAG_AUTO_OFF
#define CLK_MIN CLKFLAG_MIN
#define CLK_MAX CLKFLAG_MAX
#define CLK_MINMAX (CLK_MIN | CLK_MAX)
#ifdef CONFIG_DEBUG_FS
int __init clock_debug_init(void);
int __init clock_debug_add(struct clk *clock);
#else
static inline int __init clock_debug_init(void) { return 0; }
static inline int __init clock_debug_add(struct clk *clock) { return 0; }
#endif
struct msm_clk {
int (*reset)(struct clk_hw *hw, enum clk_reset_action action);
struct clk_hw hw;
};
static inline struct msm_clk *to_msm_clk(struct clk_hw *hw)
{
return container_of(hw, struct msm_clk, hw);
}
#endif

12
arch/arm/mach-msm/devices-msm7x00.c
View File

@ -425,7 +425,7 @@ struct platform_device msm_device_mdp = {
.resource = resources_mdp,
};
struct clk_lookup msm_clocks_7x01a[] = {
static struct clk_pcom_desc msm_clocks_7x01a[] = {
CLK_PCOM("adm_clk", ADM_CLK, NULL, 0),
CLK_PCOM("adsp_clk", ADSP_CLK, NULL, 0),
CLK_PCOM("ebi1_clk", EBI1_CLK, NULL, 0),
@ -469,4 +469,12 @@ struct clk_lookup msm_clocks_7x01a[] = {
CLK_PCOM("vfe_mdc_clk", VFE_MDC_CLK, NULL, OFF),
};
unsigned msm_num_clocks_7x01a = ARRAY_SIZE(msm_clocks_7x01a);
static struct pcom_clk_pdata msm_clock_7x01a_pdata = {
.lookup = msm_clocks_7x01a,
.num_lookups = ARRAY_SIZE(msm_clocks_7x01a),
};
struct platform_device msm_clock_7x01a = {
.name = "msm-clock-pcom",
.dev.platform_data = &msm_clock_7x01a_pdata,
};

15
arch/arm/mach-msm/devices-msm7x30.c
View File

@ -28,8 +28,8 @@
#include <asm/mach/flash.h>
#include "clock.h"
#include "clock-pcom.h"
#include "clock-7x30.h"
#include <linux/platform_data/mmc-msm_sdcc.h>
@ -161,7 +161,7 @@ struct platform_device msm_device_hsusb_host = {
},
};
struct clk_lookup msm_clocks_7x30[] = {
static struct clk_pcom_desc msm_clocks_7x30[] = {
CLK_PCOM("adm_clk", ADM_CLK, NULL, 0),
CLK_PCOM("adsp_clk", ADSP_CLK, NULL, 0),
CLK_PCOM("cam_m_clk", CAM_M_CLK, NULL, 0),
@ -177,7 +177,6 @@ struct clk_lookup msm_clocks_7x30[] = {
CLK_PCOM("grp_2d_pclk", GRP_2D_P_CLK, NULL, 0),
CLK_PCOM("grp_clk", GRP_3D_CLK, NULL, 0),
CLK_PCOM("grp_pclk", GRP_3D_P_CLK, NULL, 0),
CLK_7X30S("grp_src_clk", GRP_3D_SRC_CLK, GRP_3D_CLK, NULL, 0),
CLK_PCOM("hdmi_clk", HDMI_CLK, NULL, 0),
CLK_PCOM("imem_clk", IMEM_CLK, NULL, OFF),
CLK_PCOM("jpeg_clk", JPEG_CLK, NULL, OFF),
@ -210,7 +209,6 @@ struct clk_lookup msm_clocks_7x30[] = {
CLK_PCOM("sdac_clk", SDAC_CLK, NULL, OFF),
CLK_PCOM("spi_clk", SPI_CLK, NULL, 0),
CLK_PCOM("spi_pclk", SPI_P_CLK, NULL, 0),
CLK_7X30S("tv_src_clk", TV_CLK, TV_ENC_CLK, NULL, 0),
CLK_PCOM("tv_dac_clk", TV_DAC_CLK, NULL, 0),
CLK_PCOM("tv_enc_clk", TV_ENC_CLK, NULL, 0),
CLK_PCOM("uart_clk", UART2_CLK, "msm_serial.1", 0),
@ -237,5 +235,12 @@ struct clk_lookup msm_clocks_7x30[] = {
CLK_PCOM("csi_vfe_clk", CSI0_VFE_CLK, NULL, 0),
};
unsigned msm_num_clocks_7x30 = ARRAY_SIZE(msm_clocks_7x30);
static struct pcom_clk_pdata msm_clock_7x30_pdata = {
.lookup = msm_clocks_7x30,
.num_lookups = ARRAY_SIZE(msm_clocks_7x30),
};
struct platform_device msm_clock_7x30 = {
.name = "msm-clock-pcom",
.dev.platform_data = &msm_clock_7x30_pdata,
};

12
arch/arm/mach-msm/devices-qsd8x50.c
View File

@ -28,6 +28,7 @@
#include <asm/mach/flash.h>
#include <linux/platform_data/mmc-msm_sdcc.h>
#include "clock.h"
#include "clock-pcom.h"
static struct resource msm_gpio_resources[] = {
@ -322,7 +323,7 @@ int __init msm_add_sdcc(unsigned int controller,
return platform_device_register(pdev);
}
struct clk_lookup msm_clocks_8x50[] = {
static struct clk_pcom_desc msm_clocks_8x50[] = {
CLK_PCOM("adm_clk", ADM_CLK, NULL, 0),
CLK_PCOM("ce_clk", CE_CLK, NULL, 0),
CLK_PCOM("ebi1_clk", EBI1_CLK, NULL, CLK_MIN),
@ -376,5 +377,12 @@ struct clk_lookup msm_clocks_8x50[] = {
CLK_PCOM("usb_phy_clk", USB_PHY_CLK, NULL, 0),
};
unsigned msm_num_clocks_8x50 = ARRAY_SIZE(msm_clocks_8x50);
static struct pcom_clk_pdata msm_clock_8x50_pdata = {
.lookup = msm_clocks_8x50,
.num_lookups = ARRAY_SIZE(msm_clocks_8x50),
};
struct platform_device msm_clock_8x50 = {
.name = "msm-clock-pcom",
.dev.platform_data = &msm_clock_8x50_pdata,
};

15
arch/arm/mach-msm/devices.h
View File

@ -16,10 +16,6 @@
#ifndef __ARCH_ARM_MACH_MSM_DEVICES_H
#define __ARCH_ARM_MACH_MSM_DEVICES_H
#include <linux/clkdev.h>
#include "clock.h"
extern struct platform_device msm_device_gpio_7201;
extern struct platform_device msm_device_gpio_7x30;
extern struct platform_device msm_device_gpio_8x50;
@ -50,13 +46,8 @@ extern struct platform_device msm_device_mddi0;
extern struct platform_device msm_device_mddi1;
extern struct platform_device msm_device_mdp;
extern struct clk_lookup msm_clocks_7x01a[];
extern unsigned msm_num_clocks_7x01a;
extern struct clk_lookup msm_clocks_7x30[];
extern unsigned msm_num_clocks_7x30;
extern struct clk_lookup msm_clocks_8x50[];
extern unsigned msm_num_clocks_8x50;
extern struct platform_device msm_clock_7x01a;
extern struct platform_device msm_clock_7x30;
extern struct platform_device msm_clock_8x50;
#endif

5
arch/arm/mach-msm/dma.c
View File

@ -284,6 +284,7 @@ static int __init msm_init_datamover(void)
clk = clk_get(NULL, "adm_clk");
if (IS_ERR(clk))
return PTR_ERR(clk);
clk_prepare(clk);
msm_dmov_clk = clk;
ret = request_irq(INT_ADM_AARM, msm_datamover_irq_handler, 0, "msmdatamover", NULL);
if (ret)
@ -291,6 +292,4 @@ static int __init msm_init_datamover(void)
disable_irq(INT_ADM_AARM);
return 0;
}
arch_initcall(msm_init_datamover);
module_init(msm_init_datamover);

5
arch/arm/mach-msm/include/mach/board.h
View File

@ -20,16 +20,11 @@
#include <linux/types.h>
#include <linux/platform_data/mmc-msm_sdcc.h>
/* platform device data structures */
struct clk_lookup;
/* common init routines for use by arch/arm/mach-msm/board-*.c */
void __init msm_add_devices(void);
void __init msm_init_irq(void);
void __init msm_init_gpio(void);
void __init msm_clock_init(struct clk_lookup *clock_tbl, unsigned num_clocks);
int __init msm_add_sdcc(unsigned int controller,
struct msm_mmc_platform_data *plat,
unsigned int stat_irq, unsigned long stat_irq_flags);

9
arch/arm/mach-msm/include/mach/clk.h
View File

@ -25,16 +25,7 @@ enum clk_reset_action {
struct clk;
/* Rate is minimum clock rate in Hz */
int clk_set_min_rate(struct clk *clk, unsigned long rate);
/* Rate is maximum clock rate in Hz */
int clk_set_max_rate(struct clk *clk, unsigned long rate);
/* Assert/Deassert reset to a hardware block associated with a clock */
int clk_reset(struct clk *clk, enum clk_reset_action action);
/* Set clock-specific configuration parameters */
int clk_set_flags(struct clk *clk, unsigned long flags);
#endif

20
drivers/iommu/msm_iommu_dev.c
View File

@ -29,7 +29,6 @@
#include <mach/iommu_hw-8xxx.h>
#include <mach/iommu.h>
#include <mach/clk.h>
struct iommu_ctx_iter_data {
/* input */
@ -160,7 +159,7 @@ static int msm_iommu_probe(struct platform_device *pdev)
goto fail;
}
ret = clk_enable(iommu_pclk);
ret = clk_prepare_enable(iommu_pclk);
if (ret)
goto fail_enable;
@ -168,9 +167,9 @@ static int msm_iommu_probe(struct platform_device *pdev)
if (!IS_ERR(iommu_clk)) {
if (clk_get_rate(iommu_clk) == 0)
clk_set_min_rate(iommu_clk, 1);
clk_set_rate(iommu_clk, 1);
ret = clk_enable(iommu_clk);
ret = clk_prepare_enable(iommu_clk);
if (ret) {
clk_put(iommu_clk);
goto fail_pclk;
@ -261,7 +260,7 @@ fail_clk:
clk_put(iommu_clk);
}
fail_pclk:
clk_disable(iommu_pclk);
clk_disable_unprepare(iommu_pclk);
fail_enable:
clk_put(iommu_pclk);
fail:
@ -275,8 +274,11 @@ static int msm_iommu_remove(struct platform_device *pdev)
drv = platform_get_drvdata(pdev);
if (drv) {
if (drv->clk)
if (drv->clk) {
clk_unprepare(drv->clk);
clk_put(drv->clk);
}
clk_unprepare(drv->pclk);
clk_put(drv->pclk);
memset(drv, 0, sizeof(*drv));
kfree(drv);
@ -314,14 +316,14 @@ static int msm_iommu_ctx_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&ctx_drvdata->attached_elm);
platform_set_drvdata(pdev, ctx_drvdata);
ret = clk_enable(drvdata->pclk);
ret = clk_prepare_enable(drvdata->pclk);
if (ret)
goto fail;
if (drvdata->clk) {
ret = clk_enable(drvdata->clk);
ret = clk_prepare_enable(drvdata->clk);
if (ret) {
clk_disable(drvdata->pclk);
clk_disable_unprepare(drvdata->pclk);
goto fail;
}
}

14
drivers/mmc/host/msm_sdcc.c
View File

@ -1268,10 +1268,18 @@ msmsdcc_probe(struct platform_device *pdev)
goto clk_put;
}
ret = clk_prepare(host->pclk);
if (ret)
goto clk_put;
ret = clk_prepare(host->clk);
if (ret)
goto clk_unprepare_p;
/* Enable clocks */
ret = msmsdcc_enable_clocks(host);
if (ret)
goto clk_put;
goto clk_unprepare;
host->pclk_rate = clk_get_rate(host->pclk);
host->clk_rate = clk_get_rate(host->clk);
@ -1386,6 +1394,10 @@ msmsdcc_probe(struct platform_device *pdev)
free_irq(host->stat_irq, host);
clk_disable:
msmsdcc_disable_clocks(host, 0);
clk_unprepare:
clk_unprepare(host->clk);
clk_unprepare_p:
clk_unprepare(host->pclk);
clk_put:
clk_put(host->clk);
pclk_put:

35
drivers/tty/serial/msm_serial.c
View File

@ -408,9 +408,9 @@ static void msm_init_clock(struct uart_port *port)
{
struct msm_port *msm_port = UART_TO_MSM(port);
clk_enable(msm_port->clk);
clk_prepare_enable(msm_port->clk);
if (!IS_ERR(msm_port->pclk))
clk_enable(msm_port->pclk);
clk_prepare_enable(msm_port->pclk);
msm_serial_set_mnd_regs(port);
}
@ -486,7 +486,7 @@ static void msm_shutdown(struct uart_port *port)
msm_port->imr = 0;
msm_write(port, 0, UART_IMR); /* disable interrupts */
clk_disable(msm_port->clk);
clk_disable_unprepare(msm_port->clk);
free_irq(port->irq, port);
}
@ -688,14 +688,14 @@ static void msm_power(struct uart_port *port, unsigned int state,
switch (state) {
case 0:
clk_enable(msm_port->clk);
clk_prepare_enable(msm_port->clk);
if (!IS_ERR(msm_port->pclk))
clk_enable(msm_port->pclk);
clk_prepare_enable(msm_port->pclk);
break;
case 3:
clk_disable(msm_port->clk);
clk_disable_unprepare(msm_port->clk);
if (!IS_ERR(msm_port->pclk))
clk_disable(msm_port->pclk);
clk_disable_unprepare(msm_port->pclk);
break;
default:
printk(KERN_ERR "msm_serial: Unknown PM state %d\n", state);
@ -884,19 +884,22 @@ static int __init msm_serial_probe(struct platform_device *pdev)
msm_port->is_uartdm = 0;
if (msm_port->is_uartdm) {
msm_port->clk = clk_get(&pdev->dev, "gsbi_uart_clk");
msm_port->pclk = clk_get(&pdev->dev, "gsbi_pclk");
msm_port->clk = devm_clk_get(&pdev->dev, "gsbi_uart_clk");
msm_port->pclk = devm_clk_get(&pdev->dev, "gsbi_pclk");
} else {
msm_port->clk = clk_get(&pdev->dev, "uart_clk");
msm_port->clk = devm_clk_get(&pdev->dev, "uart_clk");
msm_port->pclk = ERR_PTR(-ENOENT);
}
if (unlikely(IS_ERR(msm_port->clk) || (IS_ERR(msm_port->pclk) &&
msm_port->is_uartdm)))
return PTR_ERR(msm_port->clk);
if (IS_ERR(msm_port->clk))
return PTR_ERR(msm_port->clk);
if (msm_port->is_uartdm) {
if (IS_ERR(msm_port->pclk))
return PTR_ERR(msm_port->pclk);
if (msm_port->is_uartdm)
clk_set_rate(msm_port->clk, 1843200);
}
port->uartclk = clk_get_rate(msm_port->clk);
printk(KERN_INFO "uartclk = %d\n", port->uartclk);
@ -919,9 +922,9 @@ static int __init msm_serial_probe(struct platform_device *pdev)
static int msm_serial_remove(struct platform_device *pdev)
{
struct msm_port *msm_port = platform_get_drvdata(pdev);
struct uart_port *port = platform_get_drvdata(pdev);
clk_put(msm_port->clk);
uart_remove_one_port(&msm_uart_driver, port);
return 0;
}

38
drivers/usb/phy/phy-msm-usb.c
View File

@ -514,13 +514,13 @@ static int msm_otg_suspend(struct msm_otg *motg)
motg->pdata->otg_control == OTG_PMIC_CONTROL)
writel(readl(USB_PHY_CTRL) | PHY_RETEN, USB_PHY_CTRL);
clk_disable(motg->pclk);
clk_disable(motg->clk);
clk_disable_unprepare(motg->pclk);
clk_disable_unprepare(motg->clk);
if (motg->core_clk)
clk_disable(motg->core_clk);
clk_disable_unprepare(motg->core_clk);
if (!IS_ERR(motg->pclk_src))
clk_disable(motg->pclk_src);
clk_disable_unprepare(motg->pclk_src);
if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
motg->pdata->otg_control == OTG_PMIC_CONTROL) {
@ -552,12 +552,12 @@ static int msm_otg_resume(struct msm_otg *motg)
return 0;
if (!IS_ERR(motg->pclk_src))
clk_enable(motg->pclk_src);
clk_prepare_enable(motg->pclk_src);
clk_enable(motg->pclk);
clk_enable(motg->clk);
clk_prepare_enable(motg->pclk);
clk_prepare_enable(motg->clk);
if (motg->core_clk)
clk_enable(motg->core_clk);
clk_prepare_enable(motg->core_clk);
if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
motg->pdata->otg_control == OTG_PMIC_CONTROL) {
@ -1468,7 +1468,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
if (IS_ERR(motg->pclk_src))
goto put_clk;
clk_set_rate(motg->pclk_src, INT_MAX);
clk_enable(motg->pclk_src);
clk_prepare_enable(motg->pclk_src);
} else
motg->pclk_src = ERR_PTR(-ENOENT);
@ -1511,8 +1511,8 @@ static int __init msm_otg_probe(struct platform_device *pdev)
goto free_regs;
}
clk_enable(motg->clk);
clk_enable(motg->pclk);
clk_prepare_enable(motg->clk);
clk_prepare_enable(motg->pclk);
ret = msm_hsusb_init_vddcx(motg, 1);
if (ret) {
@ -1532,7 +1532,7 @@ static int __init msm_otg_probe(struct platform_device *pdev)
}
if (motg->core_clk)
clk_enable(motg->core_clk);
clk_prepare_enable(motg->core_clk);
writel(0, USB_USBINTR);
writel(0, USB_OTGSC);
@ -1579,8 +1579,8 @@ static int __init msm_otg_probe(struct platform_device *pdev)
free_irq:
free_irq(motg->irq, motg);
disable_clks:
clk_disable(motg->pclk);
clk_disable(motg->clk);
clk_disable_unprepare(motg->pclk);
clk_disable_unprepare(motg->clk);
ldo_exit:
msm_hsusb_ldo_init(motg, 0);
vddcx_exit:
@ -1593,7 +1593,7 @@ put_core_clk:
clk_put(motg->pclk);
put_pclk_src:
if (!IS_ERR(motg->pclk_src)) {
clk_disable(motg->pclk_src);
clk_disable_unprepare(motg->pclk_src);
clk_put(motg->pclk_src);
}
put_clk:
@ -1643,12 +1643,12 @@ static int msm_otg_remove(struct platform_device *pdev)
if (cnt >= PHY_SUSPEND_TIMEOUT_USEC)
dev_err(phy->dev, "Unable to suspend PHY\n");
clk_disable(motg->pclk);
clk_disable(motg->clk);
clk_disable_unprepare(motg->pclk);
clk_disable_unprepare(motg->clk);
if (motg->core_clk)
clk_disable(motg->core_clk);
clk_disable_unprepare(motg->core_clk);
if (!IS_ERR(motg->pclk_src)) {
clk_disable(motg->pclk_src);
clk_disable_unprepare(motg->pclk_src);
clk_put(motg->pclk_src);
}
msm_hsusb_ldo_init(motg, 0);