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usb: phy: msm: Move mach dependent code to platform data

Browse Source 
This patch fix compilation error when driver is compiled
in multi-platform builds.

drivers/built-in.o: In function `msm_otg_link_clk_reset':
./drivers/usb/phy/phy-msm-usb.c:314: undefined reference to `clk_reset'
./drivers/usb/phy/phy-msm-usb.c:318: undefined reference to `clk_reset'

Use platform data supplied reset handlers and adjust error
messages reported when reset sequence fail.

This is an intermediate step before adding support for reset
framework and newer targets.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Ivan T. Ivanov 2013-12-30 13:15:27 -08:00 committed by Olof Johansson
parent 21dea66951
commit 5146d77143
4 changed files with 88 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
arch/arm/mach-msm/board-msm7x30.c
View File

@ -30,6 +30,7 @@
#include <asm/memory.h>
#include <asm/setup.h>
#include <mach/clk.h>
#include <mach/msm_iomap.h>
#include <mach/dma.h>
@ -60,10 +61,44 @@ static int hsusb_phy_init_seq[] = {
-1
};
static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
{
int ret;
if (assert) {
ret = clk_reset(link_clk, CLK_RESET_ASSERT);
if (ret)
pr_err("usb hs_clk assert failed\n");
} else {
ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
if (ret)
pr_err("usb hs_clk deassert failed\n");
}
return ret;
}
static int hsusb_phy_clk_reset(struct clk *phy_clk)
{
int ret;
ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
if (ret) {
pr_err("usb phy clk assert failed\n");
return ret;
}
usleep_range(10000, 12000);
ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
if (ret)
pr_err("usb phy clk deassert failed\n");
return ret;
}
static struct msm_otg_platform_data msm_otg_pdata = {
.phy_init_seq = hsusb_phy_init_seq,
.mode = USB_PERIPHERAL,
.otg_control = OTG_PHY_CONTROL,
.link_clk_reset = hsusb_link_clk_reset,
.phy_clk_reset = hsusb_phy_clk_reset,
};
struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = {

35
arch/arm/mach-msm/board-qsd8x50.c
View File

@ -31,6 +31,7 @@
#include <mach/irqs.h>
#include <mach/sirc.h>
#include <mach/vreg.h>
#include <mach/clk.h>
#include <linux/platform_data/mmc-msm_sdcc.h>
#include "devices.h"
@ -81,10 +82,44 @@ static int hsusb_phy_init_seq[] = {
-1
};
static int hsusb_link_clk_reset(struct clk *link_clk, bool assert)
{
int ret;
if (assert) {
ret = clk_reset(link_clk, CLK_RESET_ASSERT);
if (ret)
pr_err("usb hs_clk assert failed\n");
} else {
ret = clk_reset(link_clk, CLK_RESET_DEASSERT);
if (ret)
pr_err("usb hs_clk deassert failed\n");
}
return ret;
}
static int hsusb_phy_clk_reset(struct clk *phy_clk)
{
int ret;
ret = clk_reset(phy_clk, CLK_RESET_ASSERT);
if (ret) {
pr_err("usb phy clk assert failed\n");
return ret;
}
usleep_range(10000, 12000);
ret = clk_reset(phy_clk, CLK_RESET_DEASSERT);
if (ret)
pr_err("usb phy clk deassert failed\n");
return ret;
}
static struct msm_otg_platform_data msm_otg_pdata = {
.phy_init_seq = hsusb_phy_init_seq,
.mode = USB_PERIPHERAL,
.otg_control = OTG_PHY_CONTROL,
.link_clk_reset = hsusb_link_clk_reset,
.phy_clk_reset = hsusb_phy_clk_reset,
};
static struct platform_device *devices[] __initdata = {

35
drivers/usb/phy/phy-msm-usb.c
View File

@ -40,8 +40,6 @@
#include <linux/usb/msm_hsusb_hw.h>
#include <linux/regulator/consumer.h>
#include <mach/clk.h>
#define MSM_USB_BASE (motg->regs)
#define DRIVER_NAME "msm_otg"
@ -308,33 +306,30 @@ static void ulpi_init(struct msm_otg *motg)
static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
{
int ret;
int ret = 0;
if (!motg->pdata->link_clk_reset)
return ret;
ret = motg->pdata->link_clk_reset(motg->clk, assert);
if (ret)
dev_err(motg->phy.dev, "usb link clk reset %s failed\n",
assert ? "assert" : "deassert");
if (assert) {
ret = clk_reset(motg->clk, CLK_RESET_ASSERT);
if (ret)
dev_err(motg->phy.dev, "usb hs_clk assert failed\n");
} else {
ret = clk_reset(motg->clk, CLK_RESET_DEASSERT);
if (ret)
dev_err(motg->phy.dev, "usb hs_clk deassert failed\n");
}
return ret;
}
static int msm_otg_phy_clk_reset(struct msm_otg *motg)
{
int ret;
int ret = 0;
ret = clk_reset(motg->phy_reset_clk, CLK_RESET_ASSERT);
if (ret) {
dev_err(motg->phy.dev, "usb phy clk assert failed\n");
if (!motg->pdata->phy_clk_reset)
return ret;
}
usleep_range(10000, 12000);
ret = clk_reset(motg->phy_reset_clk, CLK_RESET_DEASSERT);
ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk);
if (ret)
dev_err(motg->phy.dev, "usb phy clk deassert failed\n");
dev_err(motg->phy.dev, "usb phy clk reset failed\n");
return ret;
}

3
include/linux/usb/msm_hsusb.h
View File

@ -20,6 +20,7 @@
#include <linux/types.h>
#include <linux/usb/otg.h>
#include <linux/clk.h>
/**
* Supported USB modes
@ -135,6 +136,8 @@ struct msm_otg_platform_data {
enum msm_usb_phy_type phy_type;
void (*setup_gpio)(enum usb_otg_state state);
char *pclk_src_name;
int (*link_clk_reset)(struct clk *link_clk, bool assert);
int (*phy_clk_reset)(struct clk *phy_clk);
};
/**