From mboxrd@z Thu Jan 1 00:00:00 1970 From: paul@pwsan.com (Paul Walmsley) Date: Tue, 10 Apr 2012 18:36:02 -0600 Subject: [PATCH v4 11/12] ARM: OMAP1: DMTIMER: fix broken timer clock source selection In-Reply-To: <20120411003454.27059.37500.stgit@dusk> References: <20120411003454.27059.37500.stgit@dusk> Message-ID: <20120411003559.27059.1315.stgit@dusk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org DMTIMER source selection on OMAP1 is broken. omap1_dm_timer_set_src() tries to use __raw_{read,write}l() to read from and write to physical addresses, but those functions take virtual addresses. sparse caught this: arch/arm/mach-omap1/timer.c:50:13: warning: incorrect type in argument 1 (different base types) arch/arm/mach-omap1/timer.c:50:13: expected void const volatile [noderef] * arch/arm/mach-omap1/timer.c:50:13: got unsigned int arch/arm/mach-omap1/timer.c:52:9: warning: incorrect type in argument 1 (different base types) arch/arm/mach-omap1/timer.c:52:9: expected void const volatile [noderef] * arch/arm/mach-omap1/timer.c:52:9: got unsigned int Fix by using omap_{read,writel}(), just like the other users of the MOD_CONF_CTRL_1 register in the OMAP1 codebase. Of course, in the long term, removing omap_{read,write}l() is the appropriate thing to do; but this will take some work to do this cleanly. Signed-off-by: Paul Walmsley Cc: Tarun Kanti DebBarma --- arch/arm/mach-omap1/timer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c index 5536e04..64c65bc 100644 --- a/arch/arm/mach-omap1/timer.c +++ b/arch/arm/mach-omap1/timer.c @@ -47,9 +47,9 @@ static int omap1_dm_timer_set_src(struct platform_device *pdev, int n = (pdev->id - 1) << 1; u32 l; - l = __raw_readl(MOD_CONF_CTRL_1) & ~(0x03 << n); + l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n); l |= source << n; - __raw_writel(l, MOD_CONF_CTRL_1); + omap_writel(l, MOD_CONF_CTRL_1); return 0; }