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ARM: arm-soc fixes for 3.9

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A late-arriving fix for musb on OMAP4, resolving an issue where the musb
 IP won't be clocked and thus not functional. Small in scope, most of the
 lines changed is a longish comment.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fix from Olof Johansson:
 "A late-arriving fix for musb on OMAP4, resolving an issue where the
  musb IP won't be clocked and thus not functional.  Small in scope,
  most of the lines changed is a longish comment."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP4: hwmod data: make 'ocp2scp_usb_phy_phy_48m" as the main clock
This commit is contained in:
Linus Torvalds 2013-04-27 13:58:36 -07:00
commit 4cbbd1d55d
1 changed files with 11 additions and 7 deletions
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18
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
View file

@ -2714,16 +2714,22 @@ static struct omap_ocp2scp_dev ocp2scp_dev_attr[] = {
{ }
};
static struct omap_hwmod_opt_clk ocp2scp_usb_phy_opt_clks[] = {
{ .role = "48mhz", .clk = "ocp2scp_usb_phy_phy_48m" },
};
/* ocp2scp_usb_phy */
static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
.name = "ocp2scp_usb_phy",
.class = &omap44xx_ocp2scp_hwmod_class,
.clkdm_name = "l3_init_clkdm",
.main_clk = "func_48m_fclk",
/*
* ocp2scp_usb_phy_phy_48m is provided by the OMAP4 PRCM IP
* block as an "optional clock," and normally should never be
* specified as the main_clk for an OMAP IP block. However it
* turns out that this clock is actually the main clock for
* the ocp2scp_usb_phy IP block:
* http://lists.infradead.org/pipermail/linux-arm-kernel/2012-September/119943.html
* So listing ocp2scp_usb_phy_phy_48m as a main_clk here seems
* to be the best workaround.
*/
.main_clk = "ocp2scp_usb_phy_phy_48m",
.prcm = {
.omap4 = {
.clkctrl_offs = OMAP4_CM_L3INIT_USBPHYOCP2SCP_CLKCTRL_OFFSET,
@ -2732,8 +2738,6 @@ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
},
},
.dev_attr = ocp2scp_dev_attr,
.opt_clks = ocp2scp_usb_phy_opt_clks,
.opt_clks_cnt = ARRAY_SIZE(ocp2scp_usb_phy_opt_clks),
};
/*