| Message ID | 1345529864-7937-3-git-send-email-shubhrajyoti@ti.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
Hi Felipe, Thanks for the review On Tuesday 21 August 2012 02:35 PM, Felipe Balbi wrote: > On Tue, Aug 21, 2012 at 11:47:43AM +0530, Shubhrajyoti D wrote: >> Remove the macro MOD_REG_BIT instead make the bit field modifications >> directly. This deletes a branch operation in cases where the the set >> is predecided.While at it optimise two sequential bit clear in one step. > ^^ > you need a space here, besides you can add the ack below Will fix that and resend. >> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> > Acked-by: Felipe Balbi <balbi@ti.com> > >> --- >> drivers/spi/spi-omap2-mcspi.c | 28 ++++++++++++++-------------- >> 1 files changed, 14 insertions(+), 14 deletions(-) >> >> diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c >> index dd887eb..5642111 100644 >> --- a/drivers/spi/spi-omap2-mcspi.c >> +++ b/drivers/spi/spi-omap2-mcspi.c >> @@ -140,13 +140,6 @@ struct omap2_mcspi_cs { >> u32 chconf0; >> }; >> >> -#define MOD_REG_BIT(val, mask, set) do { \ >> - if (set) \ >> - val |= mask; \ >> - else \ >> - val &= ~mask; \ >> -} while (0) >> - >> static inline void mcspi_write_reg(struct spi_master *master, >> int idx, u32 val) >> { >> @@ -205,7 +198,11 @@ static void omap2_mcspi_set_dma_req(const struct spi_device *spi, >> else >> rw = OMAP2_MCSPI_CHCONF_DMAW; >> >> - MOD_REG_BIT(l, rw, enable); >> + if (enable) >> + l |= rw; >> + else >> + l &= ~rw; >> + >> mcspi_write_chconf0(spi, l); >> } >> >> @@ -224,7 +221,11 @@ static void omap2_mcspi_force_cs(struct spi_device *spi, int cs_active) >> u32 l; >> >> l = mcspi_cached_chconf0(spi); >> - MOD_REG_BIT(l, OMAP2_MCSPI_CHCONF_FORCE, cs_active); >> + if (cs_active) >> + l |= OMAP2_MCSPI_CHCONF_FORCE; >> + else >> + l &= ~OMAP2_MCSPI_CHCONF_FORCE; >> + >> mcspi_write_chconf0(spi, l); >> } >> >> @@ -239,9 +240,8 @@ static void omap2_mcspi_set_master_mode(struct spi_master *master) >> * to single-channel master mode >> */ >> l = mcspi_read_reg(master, OMAP2_MCSPI_MODULCTRL); >> - MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_STEST, 0); >> - MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_MS, 0); >> - MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_SINGLE, 1); >> + l &= ~(OMAP2_MCSPI_MODULCTRL_STEST | OMAP2_MCSPI_MODULCTRL_MS); >> + l |= OMAP2_MCSPI_MODULCTRL_SINGLE; >> mcspi_write_reg(master, OMAP2_MCSPI_MODULCTRL, l); >> >> ctx->modulctrl = l; >> @@ -1276,9 +1276,9 @@ static int omap2_mcspi_resume(struct device *dev) >> * We need to toggle CS state for OMAP take this >> * change in account. >> */ >> - MOD_REG_BIT(cs->chconf0, OMAP2_MCSPI_CHCONF_FORCE, 1); >> + cs->chconf0 |= OMAP2_MCSPI_CHCONF_FORCE; >> __raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0); >> - MOD_REG_BIT(cs->chconf0, OMAP2_MCSPI_CHCONF_FORCE, 0); >> + cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE; >> __raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0); >> } >> } >> -- >> 1.7.5.4 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/ ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index dd887eb..5642111 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -140,13 +140,6 @@ struct omap2_mcspi_cs { u32 chconf0; }; -#define MOD_REG_BIT(val, mask, set) do { \ - if (set) \ - val |= mask; \ - else \ - val &= ~mask; \ -} while (0) - static inline void mcspi_write_reg(struct spi_master *master, int idx, u32 val) { @@ -205,7 +198,11 @@ static void omap2_mcspi_set_dma_req(const struct spi_device *spi, else rw = OMAP2_MCSPI_CHCONF_DMAW; - MOD_REG_BIT(l, rw, enable); + if (enable) + l |= rw; + else + l &= ~rw; + mcspi_write_chconf0(spi, l); } @@ -224,7 +221,11 @@ static void omap2_mcspi_force_cs(struct spi_device *spi, int cs_active) u32 l; l = mcspi_cached_chconf0(spi); - MOD_REG_BIT(l, OMAP2_MCSPI_CHCONF_FORCE, cs_active); + if (cs_active) + l |= OMAP2_MCSPI_CHCONF_FORCE; + else + l &= ~OMAP2_MCSPI_CHCONF_FORCE; + mcspi_write_chconf0(spi, l); } @@ -239,9 +240,8 @@ static void omap2_mcspi_set_master_mode(struct spi_master *master) * to single-channel master mode */ l = mcspi_read_reg(master, OMAP2_MCSPI_MODULCTRL); - MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_STEST, 0); - MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_MS, 0); - MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_SINGLE, 1); + l &= ~(OMAP2_MCSPI_MODULCTRL_STEST | OMAP2_MCSPI_MODULCTRL_MS); + l |= OMAP2_MCSPI_MODULCTRL_SINGLE; mcspi_write_reg(master, OMAP2_MCSPI_MODULCTRL, l); ctx->modulctrl = l; @@ -1276,9 +1276,9 @@ static int omap2_mcspi_resume(struct device *dev) * We need to toggle CS state for OMAP take this * change in account. */ - MOD_REG_BIT(cs->chconf0, OMAP2_MCSPI_CHCONF_FORCE, 1); + cs->chconf0 |= OMAP2_MCSPI_CHCONF_FORCE; __raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0); - MOD_REG_BIT(cs->chconf0, OMAP2_MCSPI_CHCONF_FORCE, 0); + cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE; __raw_writel(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0); } }
Remove the macro MOD_REG_BIT instead make the bit field modifications directly. This deletes a branch operation in cases where the the set is predecided.While at it optimise two sequential bit clear in one step. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> --- drivers/spi/spi-omap2-mcspi.c | 28 ++++++++++++++-------------- 1 files changed, 14 insertions(+), 14 deletions(-)