| Date | Thu, 17 Apr 2014 17:56:15 -0400 | From | Santosh Shilimkar <> | Subject | Re: [PATCH V2 05/19] bus: omap_l3_noc: switch over to relaxed variants of readl/writel |
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On Thursday 17 April 2014 05:52 PM, Felipe Balbi wrote: > Hi, > > On Thu, Apr 17, 2014 at 03:49:21PM -0500, Nishanth Menon wrote: >> Currently we use __raw_readl and writel in this driver, however, there > > __raw_* and *_relaxed variants are the same, just have a look <asm/io.h> > Except the relaxed version can take care of endian conversion if needed. :-)
> 297 #define readb_relaxed(c) ({ u8 __r = __raw_readb(c); __r; }) > 298 #define readw_relaxed(c) ({ u16 __r = le16_to_cpu((__force __le16) \ > 299 __raw_readw(c)); __r; }) > 300 #define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force __le32) \ > 301 __raw_readl(c)); __r; }) > 302 > 303 #define writeb_relaxed(v,c) __raw_writeb(v,c) > 304 #define writew_relaxed(v,c) __raw_writew((__force u16) cpu_to_le16(v),c) > 305 #define writel_relaxed(v,c) __raw_writel((__force u32) cpu_to_le32(v),c) >
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