From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 04/22] mfd: omap-usb-tll: Clean up clock handling
Date: Wed, 16 Jan 2013 14:55:30 +0000 [thread overview]
Message-ID: <20130116145530.GU23505@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1358347433-329-5-git-send-email-rogerq@ti.com>
On Wed, Jan 16, 2013 at 04:43:35PM +0200, Roger Quadros wrote:
> + spin_lock_irqsave(&tll->lock, flags);
> +
> + for (i = 0; i < tll->nch; i++) {
> + char clkname[] = "usb_tll_hs_usb_chx_clk";
> + struct clk *fck;
> +
> + snprintf(clkname, sizeof(clkname),
> + "usb_tll_hs_usb_ch%d_clk", i);
> + fck = clk_get(dev, clkname);
NAK. Why are you doing this under a spinlock?
clk_get() takes a mutex. You must not be in an atomic region (iow, you
must not be holding a spinlock, and you must not have IRQs disabled)
when you call clk_get().
next prev parent reply other threads:[~2013-01-16 14:55 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-16 14:43 [PATCH v6 00/22] OMAP USB Host cleanup Roger Quadros
2013-01-16 14:43 ` [PATCH v6 01/22] mfd: omap-usb-host: Consolidate OMAP USB-HS platform data Roger Quadros
2013-01-16 14:43 ` [PATCH v6 02/22] mfd: omap-usb-tll: Fix channel count detection Roger Quadros
2013-01-16 14:43 ` [PATCH v6 03/22] mfd: omap-usb-tll: Use devm_kzalloc/ioremap and clean up error path Roger Quadros
2013-01-16 19:37 ` Sergei Shtylyov
2013-01-17 9:12 ` Roger Quadros
2013-01-17 10:32 ` Roger Quadros
2013-01-16 14:43 ` [PATCH v6 04/22] mfd: omap-usb-tll: Clean up clock handling Roger Quadros
2013-01-16 14:55 ` Russell King - ARM Linux [this message]
2013-01-16 15:05 ` Roger Quadros
2013-01-16 14:43 ` [PATCH v6 05/22] mfd: omap-usb-tll: introduce and use mode_needs_tll() Roger Quadros
2013-01-16 14:43 ` [PATCH v6 06/22] mfd: omap-usb-tll: Check for missing platform data in probe Roger Quadros
2013-01-16 14:43 ` [PATCH v6 07/22] mfd: omap-usb-tll: Fix error message Roger Quadros
2013-01-16 14:43 ` [PATCH v6 08/22] mfd: omap-usb-tll: serialize access to TLL device Roger Quadros
2013-01-16 14:43 ` [PATCH v6 09/22] mfd: omap-usb-tll: Add OMAP5 revision and HSIC support Roger Quadros
2013-01-16 14:43 ` [PATCH v6 10/22] mfd: omap_usb_host: Avoid missing platform data checks in suspend/resume Roger Quadros
2013-01-16 14:43 ` [PATCH v6 11/22] mfd: omap-usb-host: Use devm_kzalloc() and devm_request_and_ioremap() Roger Quadros
2013-01-16 19:34 ` Sergei Shtylyov
2013-01-16 14:43 ` [PATCH v6 12/22] mfd: omap-usb-host: know about number of ports from revision register Roger Quadros
2013-01-16 14:43 ` [PATCH v6 13/22] mfd: omap-usb-host: override number of ports from platform data Roger Quadros
2013-01-16 14:43 ` [PATCH v6 14/22] mfd: omap-usb-host: cleanup clock management code Roger Quadros
2013-01-16 14:43 ` [PATCH v6 15/22] mfd: omap-usb-host: Manage HSIC clocks for HSIC mode Roger Quadros
2013-01-16 14:43 ` [PATCH v6 16/22] mfd: omap-usb-host: Get rid of unnecessary spinlock Roger Quadros
2013-01-16 14:43 ` [PATCH v6 17/22] mfd: omap-usb-host: clean up omap_usbhs_init() Roger Quadros
2013-01-16 14:43 ` [PATCH v6 18/22] USB: ehci-omap: Don't free gpios that we didn't request Roger Quadros
2013-01-16 14:43 ` [PATCH v6 19/22] ARM: OMAP3: clock data: get rid of unused USB host clock aliases and dummies Roger Quadros
2013-01-16 14:43 ` [PATCH v6 20/22] ARM: OMAP4: clock data: get rid of unused USB host clock aliases Roger Quadros
2013-01-16 14:43 ` [PATCH v6 21/22] mfd: omap-usb-host: Don't spam console on clk_set_parent failure Roger Quadros
2013-01-16 14:43 ` [PATCH v6 22/22] mdf: omap-usb-host: get rid of build warning Roger Quadros
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