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Date: Sat, 16 Nov 2013 02:01:19 +0200 From: Taras Kondratiuk <taras.kondratiuk@...aro.org> To: linux-omap@...r.kernel.org Cc: linaro-networking@...aro.org, Victor Kamensky <victor.kamensky@...aro.org>, Peter Ujfalusi <peter.ujfalusi@...com>, Jarkko Nikula <jarkko.nikula@...mer.com>, Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>, alsa-devel@...a-project.org, linux-kernel@...r.kernel.org Subject: [RFC 16/23] ASoC: omap: mcbsp, mcpdm, dmic: raw read and write endian fix From: Victor Kamensky <victor.kamensky@...aro.org> All OMAP IP blocks expect LE data, but CPU may operate in BE mode. Need to use endian neutral functions to read/write h/w registers. I.e instead of __raw_read[lw] and __raw_write[lw] functions code need to use read[lw]_relaxed and write[lw]_relaxed functions. If the first simply reads/writes register, the second will byteswap it if host operates in BE mode. Changes are trivial sed like replacement of __raw_xxx functions with xxx_relaxed variant. Signed-off-by: Victor Kamensky <victor.kamensky@...aro.org> Signed-off-by: Taras Kondratiuk <taras.kondratiuk@...aro.org> --- sound/soc/omap/mcbsp.c | 12 ++++++------ sound/soc/omap/omap-dmic.c | 4 ++-- sound/soc/omap/omap-mcpdm.c | 4 ++-- 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c index 83433fd..86c7538 100644 --- a/sound/soc/omap/mcbsp.c +++ b/sound/soc/omap/mcbsp.c @@ -36,10 +36,10 @@ static void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val) if (mcbsp->pdata->reg_size == 2) { ((u16 *)mcbsp->reg_cache)[reg] = (u16)val; - __raw_writew((u16)val, addr); + writew_relaxed((u16)val, addr); } else { ((u32 *)mcbsp->reg_cache)[reg] = val; - __raw_writel(val, addr); + writel_relaxed(val, addr); } } @@ -48,22 +48,22 @@ static int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, bool from_cache) void __iomem *addr = mcbsp->io_base + reg * mcbsp->pdata->reg_step; if (mcbsp->pdata->reg_size == 2) { - return !from_cache ? __raw_readw(addr) : + return !from_cache ? readw_relaxed(addr) : ((u16 *)mcbsp->reg_cache)[reg]; } else { - return !from_cache ? __raw_readl(addr) : + return !from_cache ? readl_relaxed(addr) : ((u32 *)mcbsp->reg_cache)[reg]; } } static void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val) { - __raw_writel(val, mcbsp->st_data->io_base_st + reg); + writel_relaxed(val, mcbsp->st_data->io_base_st + reg); } static int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg) { - return __raw_readl(mcbsp->st_data->io_base_st + reg); + return readl_relaxed(mcbsp->st_data->io_base_st + reg); } #define MCBSP_READ(mcbsp, reg) \ diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c index 12e566b..1bd531d 100644 --- a/sound/soc/omap/omap-dmic.c +++ b/sound/soc/omap/omap-dmic.c @@ -61,12 +61,12 @@ struct omap_dmic { static inline void omap_dmic_write(struct omap_dmic *dmic, u16 reg, u32 val) { - __raw_writel(val, dmic->io_base + reg); + writel_relaxed(val, dmic->io_base + reg); } static inline int omap_dmic_read(struct omap_dmic *dmic, u16 reg) { - return __raw_readl(dmic->io_base + reg); + return readl_relaxed(dmic->io_base + reg); } static inline void omap_dmic_start(struct omap_dmic *dmic) diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c index 90d2a7c..653ba1c 100644 --- a/sound/soc/omap/omap-mcpdm.c +++ b/sound/soc/omap/omap-mcpdm.c @@ -74,12 +74,12 @@ struct omap_mcpdm { static inline void omap_mcpdm_write(struct omap_mcpdm *mcpdm, u16 reg, u32 val) { - __raw_writel(val, mcpdm->io_base + reg); + writel_relaxed(val, mcpdm->io_base + reg); } static inline int omap_mcpdm_read(struct omap_mcpdm *mcpdm, u16 reg) { - return __raw_readl(mcpdm->io_base + reg); + return readl_relaxed(mcpdm->io_base + reg); } #ifdef DEBUG -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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