From: "Ivan T. Ivanov" <iivanov@xxxxxxxxxx> This patch fix compilation error and is an intermediate step before the addition of DeviceTree support for newer targets. Fix suggested here: https://lkml.org/lkml/2013/6/19/381 Cc: David Brown <davidb@xxxxxxxxxxxxxx> Cc: Daniel Walker <dwalker@xxxxxxxxxx> Cc: Bryan Huntsman <bryanh@xxxxxxxxxxxxxx> Cc: Felipe Balbi <balbi@xxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-usb@xxxxxxxxxxxxxxx Signed-off-by: Ivan T. Ivanov <iivanov@xxxxxxxxxx> --- arch/arm/mach-msm/board-msm7x30.c | 35 +++++++++++++++++++++++ arch/arm/mach-msm/board-qsd8x50.c | 34 +++++++++++++++++++++++ drivers/usb/phy/phy-msm-usb.c | 55 ++++++++++--------------------------- include/linux/usb/msm_hsusb.h | 2 ++ 4 files changed, 85 insertions(+), 41 deletions(-) diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c index db3d8c0..4df7daa 100644 --- a/arch/arm/mach-msm/board-msm7x30.c +++ b/arch/arm/mach-msm/board-msm7x30.c @@ -31,6 +31,7 @@ #include <asm/setup.h> #include <mach/board.h> +#include <mach/clk.h> #include <mach/msm_iomap.h> #include <mach/dma.h> @@ -61,10 +62,44 @@ static int hsusb_phy_init_seq[] = { -1 }; +static int hsusb_phy_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, + .phy_link_clk_reset = hsusb_phy_link_clk_reset, + .phy_phy_clk_reset = hsusb_phy_clk_reset, }; struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = { diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c index f14a73d..d3d92ab 100644 --- a/arch/arm/mach-msm/board-qsd8x50.c +++ b/arch/arm/mach-msm/board-qsd8x50.c @@ -82,10 +82,44 @@ static int hsusb_phy_init_seq[] = { -1 }; +static int hsusb_phy_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, + .phy_link_clk_reset = hsusb_phy_link_clk_reset, + .phy_phy_clk_reset = hsusb_phy_clk_reset, }; static struct platform_device *devices[] __initdata = { diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c index d08f334..ab1b880 100644 --- a/drivers/usb/phy/phy-msm-usb.c +++ b/drivers/usb/phy/phy-msm-usb.c @@ -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" @@ -306,51 +304,20 @@ static void ulpi_init(struct msm_otg *motg) } } -static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert) -{ - int ret; - - 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; - - ret = clk_reset(motg->phy_reset_clk, CLK_RESET_ASSERT); - if (ret) { - dev_err(motg->phy.dev, "usb phy clk assert failed\n"); - return ret; - } - usleep_range(10000, 12000); - ret = clk_reset(motg->phy_reset_clk, CLK_RESET_DEASSERT); - if (ret) - dev_err(motg->phy.dev, "usb phy clk deassert failed\n"); - return ret; -} - static int msm_otg_phy_reset(struct msm_otg *motg) { + struct msm_otg_platform_data *pdata = motg->pdata; u32 val; int ret; int retries; - ret = msm_otg_link_clk_reset(motg, 1); + ret = pdata->phy_link_clk_reset(motg->clk, true); if (ret) return ret; - ret = msm_otg_phy_clk_reset(motg); + ret = pdata->phy_clk_reset(motg->phy_reset_clk); if (ret) return ret; - ret = msm_otg_link_clk_reset(motg, 0); + ret = pdata->phy_link_clk_reset(motg->clk, false); if (ret) return ret; @@ -362,7 +329,7 @@ static int msm_otg_phy_reset(struct msm_otg *motg) ULPI_CLR(ULPI_FUNC_CTRL)); if (!ret) break; - ret = msm_otg_phy_clk_reset(motg); + ret = pdata->phy_clk_reset(motg->phy_reset_clk); if (ret) return ret; } @@ -370,7 +337,7 @@ static int msm_otg_phy_reset(struct msm_otg *motg) return -ETIMEDOUT; /* This reset calibrates the phy, if the above write succeeded */ - ret = msm_otg_phy_clk_reset(motg); + ret = pdata->phy_clk_reset(motg->phy_reset_clk); if (ret) return ret; @@ -378,7 +345,7 @@ static int msm_otg_phy_reset(struct msm_otg *motg) ret = ulpi_read(&motg->phy, ULPI_DEBUG); if (ret != -ETIMEDOUT) break; - ret = msm_otg_phy_clk_reset(motg); + ret = pdata->phy_clk_reset(motg->phy_reset_clk); if (ret) return ret; } @@ -1414,16 +1381,22 @@ static void msm_otg_debugfs_cleanup(void) static int __init msm_otg_probe(struct platform_device *pdev) { int ret = 0; + struct msm_otg_platform_data *pdata = pdev->dev.platform_data; struct resource *res; struct msm_otg *motg; struct usb_phy *phy; dev_info(&pdev->dev, "msm_otg probe\n"); - if (!pdev->dev.platform_data) { + if (!pdata) { dev_err(&pdev->dev, "No platform data given. Bailing out\n"); return -ENODEV; } + if (!pdata->phy_clk_reset || !pdata->phy_link_clk_reset) { + dev_err(&pdev->dev, "No phy or link clock reset methods\n"); + return -ENODEV; + } + motg = kzalloc(sizeof(struct msm_otg), GFP_KERNEL); if (!motg) { dev_err(&pdev->dev, "unable to allocate msm_otg\n"); diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h index 22a396c..66081ed 100644 --- a/include/linux/usb/msm_hsusb.h +++ b/include/linux/usb/msm_hsusb.h @@ -135,6 +135,8 @@ 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 (*phy_link_clk_reset)(struct clk *link_clk, bool assert); + int (*phy_clk_reset)(struct clk *phy_clk); }; /** -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
