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ARM: msm: Make proc_comm clock control into a platform driver

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To move closer to the generic struct clock framework move the
proc_comm based clock code to a platform driver. The data
describing the struct clks still live in the devices-$ARCH file,
but the clock initialization is done at driver binding time.

Cc: Saravana Kannan <skannan@codeaurora.org>
Reviewed-by: Pankaj Jangra <jangra.pankaj9@gmail.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
This commit is contained in:
Stephen Boyd 2013-06-17 10:43:18 -07:00 committed by David Brown
parent 2dfd9c1f77
commit 421faca0b5
13 changed files with 67 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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)

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)

23
arch/arm/mach-msm/clock-pcom.c
View File

@ -14,8 +14,9 @@
*/
#include <linux/err.h>
#include <linux/ctype.h>
#include <linux/stddef.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <mach/clk.h>
#include "proc_comm.h"
@ -126,3 +127,21 @@ struct clk_ops clk_ops_pcom = {
.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;
msm_clock_init(pdata->lookup, pdata->num_lookups);
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");

5
arch/arm/mach-msm/clock-pcom.h
View File

@ -123,6 +123,11 @@
struct clk_ops;
extern struct clk_ops clk_ops_pcom;
struct pcom_clk_pdata {
struct clk_lookup *lookup;
u32 num_lookups;
};
int pc_clk_reset(unsigned id, enum clk_reset_action action);
#define CLK_PCOM(clk_name, clk_id, clk_dev, clk_flags) { \

2
arch/arm/mach-msm/clock.c
View File

@ -116,7 +116,7 @@ EXPORT_SYMBOL(clk_get_parent);
*/
static struct clk *ebi1_clk;
void __init msm_clock_init(struct clk_lookup *clock_tbl, unsigned num_clocks)
void msm_clock_init(struct clk_lookup *clock_tbl, size_t num_clocks)
{
unsigned n;

3
arch/arm/mach-msm/clock.h
View File

@ -63,4 +63,7 @@ static inline int __init clock_debug_init(void) { return 0; }
static inline int __init clock_debug_add(struct clk *clock) { return 0; }
#endif
struct clk_lookup;
void msm_clock_init(struct clk_lookup *clock_tbl, size_t num_clocks);
#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_lookup 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,
};

12
arch/arm/mach-msm/devices-msm7x30.c
View File

@ -28,6 +28,7 @@
#include <asm/mach/flash.h>
#include "clock.h"
#include "clock-pcom.h"
#include <linux/platform_data/mmc-msm_sdcc.h>
@ -160,7 +161,7 @@ struct platform_device msm_device_hsusb_host = {
},
};
struct clk_lookup msm_clocks_7x30[] = {
static struct clk_lookup 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),
@ -234,5 +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_lookup 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/include/mach/board.h
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@ -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);