From mboxrd@z Thu Jan 1 00:00:00 1970 From: m.chehab@samsung.com (Mauro Carvalho Chehab) Date: Tue, 09 Sep 2014 13:10:36 -0300 Subject: [PATCHv2 2/3] [media] s5p-jpeg: Fix compilation with COMPILE_TEST In-Reply-To: <540F1D11.9030400@samsung.com> References: <20140909124306.2d5a0d76@canb.auug.org.au> <6cbd00c5f2d342b573aaf9c0e533778374dd2e1e.1410273306.git.m.chehab@samsung.com> <540F15B2.3000902@samsung.com> <20140909120936.527bd852.m.chehab@samsung.com> <540F1D11.9030400@samsung.com> Message-ID: <20140909131036.7265121f.m.chehab@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org ERROR: "__bad_ndelay" [drivers/media/platform/s5p-jpeg/s5p-jpeg.ko] undefined! That happens because asm-generic doesn't like any ndelay time bigger than 20us. Currently, usleep_range() couldn't simply be used, since exynos4_jpeg_sw_reset() is called with a spinlock held. So, let's use ndelay() instead. Reported-by: Stephen Rothwell Signed-off-by: Mauro Carvalho Chehab diff --git a/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c b/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c index e51c078360f5..ab6d6f43c96f 100644 --- a/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c +++ b/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c @@ -23,7 +23,7 @@ void exynos4_jpeg_sw_reset(void __iomem *base) reg = readl(base + EXYNOS4_JPEG_CNTL_REG); writel(reg & ~EXYNOS4_SOFT_RESET_HI, base + EXYNOS4_JPEG_CNTL_REG); - ndelay(100000); + udelay(100); writel(reg | EXYNOS4_SOFT_RESET_HI, base + EXYNOS4_JPEG_CNTL_REG); }