[opensuse-kernel] [PATCH v2 2/2] usb: musb: tusb6010: Use musb->tusb_revision instead of

From 7751b6fb05869bcb318e74420148c06577adf894 Mon Sep 17 00:00:00 2001 From: "Matwey V. Kornilov" Date: Fri, 16 May 2014 18:20:52 +0400 Subject: usb: musb: tusb6010: Use musb->tusb_revision instead of tusb_get_revision call.

The value of the revision is stored in musb->tusb_revision, so don't re-read it every time. Exporting tusb_get_revision is not needed anymore, so the dependency loop between tusb6010 and tusb6010_omap is resolved. Signed-off-by: Matwey V. Kornilov Signed-off-by: Felipe Balbi Patch-mainline: Queued in subsystem maintainer repository Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git Git-commit: 7751b6fb05869bcb318e74420148c06577adf894 References: bnc#872715 Signed-off-by: Matwey V. Kornilov diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 8a74642..159ef4b 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -43,7 +43,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on); * Checks the revision. We need to use the DMA register as 3.0 does not * have correct versions for TUSB_PRCM_REV or TUSB_INT_CTRL_REV. */ -u8 tusb_get_revision(struct musb *musb) +static u8 tusb_get_revision(struct musb *musb) { void __iomem *tbase = musb->ctrl_base; u32 die_id; @@ -59,14 +59,13 @@ u8 tusb_get_revision(struct musb *musb) return rev; } -EXPORT_SYMBOL_GPL(tusb_get_revision); -static int tusb_print_revision(struct musb *musb) +static void tusb_print_revision(struct musb *musb) { void __iomem *tbase = musb->ctrl_base; u8 rev; - rev = tusb_get_revision(musb); + rev = musb->tusb_revision; pr_info("tusb: %s%i.%i %s%i.%i %s%i.%i %s%i.%i %s%i %s%i.%i\n", "prcm", @@ -85,8 +84,6 @@ static int tusb_print_revision(struct musb *musb) TUSB_DIDR1_HI_CHIP_REV(musb_readl(tbase, TUSB_DIDR1_HI)), "rev", TUSB_REV_MAJOR(rev), TUSB_REV_MINOR(rev)); - - return tusb_get_revision(musb); } #define WBUS_QUIRK_MASK (TUSB_PHY_OTG_CTRL_TESTM2 | TUSB_PHY_OTG_CTRL_TESTM1 \ @@ -350,7 +347,7 @@ static void tusb_allow_idle(struct musb *musb, u32 wakeup_enables) u32 reg; if ((wakeup_enables & TUSB_PRCM_WBUS) - && (tusb_get_revision(musb) == TUSB_REV_30)) + && (musb->tusb_revision == TUSB_REV_30)) tusb_wbus_quirk(musb, 1); tusb_set_clock_source(musb, 0); @@ -798,7 +795,7 @@ static irqreturn_t tusb_musb_interrupt(int irq, void *__hci) u32 reg; u32 i; - if (tusb_get_revision(musb) == TUSB_REV_30) + if (musb->tusb_revision == TUSB_REV_30) tusb_wbus_quirk(musb, 0); /* there are issues re-locking the PLL on wakeup ... */ @@ -1013,10 +1010,10 @@ static int tusb_musb_start(struct musb *musb) } musb->tusb_revision = tusb_get_revision(musb); - ret = tusb_print_revision(musb); - if (ret < 2) { + tusb_print_revision(musb); + if (musb->tusb_revision < 2) { printk(KERN_ERR "tusb: Unsupported TUSB6010 revision %i\n", - ret); + musb->tusb_revision); goto err; } diff --git a/drivers/usb/musb/tusb6010.h b/drivers/usb/musb/tusb6010.h index 1864e24..aec86c8 100644 --- a/drivers/usb/musb/tusb6010.h +++ b/drivers/usb/musb/tusb6010.h @@ -12,8 +12,6 @@ #ifndef __TUSB6010_H__ #define __TUSB6010_H__ -extern u8 tusb_get_revision(struct musb *musb); - #ifdef CONFIG_USB_TUSB_OMAP_DMA #define tusb_dma_omap() 1 #else diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c index e33b6b2..3ce152c 100644 --- a/drivers/usb/musb/tusb6010_omap.c +++ b/drivers/usb/musb/tusb6010_omap.c @@ -677,7 +677,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba tusb_dma->controller.channel_program = tusb_omap_dma_program; tusb_dma->controller.channel_abort = tusb_omap_dma_abort; - if (tusb_get_revision(musb) >= TUSB_REV_30) + if (musb->tusb_revision >= TUSB_REV_30) tusb_dma->multichannel = 1; for (i = 0; i < MAX_DMAREQ; i++) { -- cgit v0.10.1 -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org