ARM: OMAP: dmtimer: raw read and write endian fix

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@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 869254c..db10169 100644 (file)
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -103,7 +103,7 @@ static void omap_timer_restore_context(struct omap_dm_timer *timer)
                                timer->context.tmar);
        omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG,
                                timer->context.tsicr);
-       __raw_writel(timer->context.tier, timer->irq_ena);
+       writel_relaxed(timer->context.tier, timer->irq_ena);
        omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG,
                                timer->context.tclr);
 }
@@ -699,9 +699,9 @@ int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask)
        omap_dm_timer_enable(timer);
 
        if (timer->revision == 1)
-               l = __raw_readl(timer->irq_ena) & ~mask;
+               l = readl_relaxed(timer->irq_ena) & ~mask;
 
-       __raw_writel(l, timer->irq_dis);
+       writel_relaxed(l, timer->irq_dis);
        l = omap_dm_timer_read_reg(timer, OMAP_TIMER_WAKEUP_EN_REG) & ~mask;
        omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG, l);
 
@@ -722,7 +722,7 @@ unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)
                return 0;
        }
 
-       l = __raw_readl(timer->irq_stat);
+       l = readl_relaxed(timer->irq_stat);
 
        return l;
 }

diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index 2861b15..dd79f30 100644 (file)
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -280,20 +280,20 @@ static inline u32 __omap_dm_timer_read(struct omap_dm_timer *timer, u32 reg,
                                                int posted)
 {
        if (posted)
-               while (__raw_readl(timer->pend) & (reg >> WPSHIFT))
+               while (readl_relaxed(timer->pend) & (reg >> WPSHIFT))
                        cpu_relax();
 
-       return __raw_readl(timer->func_base + (reg & 0xff));
+       return readl_relaxed(timer->func_base + (reg & 0xff));
 }
 
 static inline void __omap_dm_timer_write(struct omap_dm_timer *timer,
                                        u32 reg, u32 val, int posted)
 {
        if (posted)
-               while (__raw_readl(timer->pend) & (reg >> WPSHIFT))
+               while (readl_relaxed(timer->pend) & (reg >> WPSHIFT))
                        cpu_relax();
 
-       __raw_writel(val, timer->func_base + (reg & 0xff));
+       writel_relaxed(val, timer->func_base + (reg & 0xff));
 }
 
 static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer)
@@ -301,7 +301,7 @@ static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer)
        u32 tidr;
 
        /* Assume v1 ip if bits [31:16] are zero */
-       tidr = __raw_readl(timer->io_base);
+       tidr = readl_relaxed(timer->io_base);
        if (!(tidr >> 16)) {
                timer->revision = 1;
                timer->irq_stat = timer->io_base + OMAP_TIMER_V1_STAT_OFFSET;
@@ -385,7 +385,7 @@ static inline void __omap_dm_timer_stop(struct omap_dm_timer *timer,
        }
 
        /* Ack possibly pending interrupt */
-       __raw_writel(OMAP_TIMER_INT_OVERFLOW, timer->irq_stat);
+       writel_relaxed(OMAP_TIMER_INT_OVERFLOW, timer->irq_stat);
 }
 
 static inline void __omap_dm_timer_load_start(struct omap_dm_timer *timer,
@@ -399,7 +399,7 @@ static inline void __omap_dm_timer_load_start(struct omap_dm_timer *timer,
 static inline void __omap_dm_timer_int_enable(struct omap_dm_timer *timer,
                                                unsigned int value)
 {
-       __raw_writel(value, timer->irq_ena);
+       writel_relaxed(value, timer->irq_ena);
        __omap_dm_timer_write(timer, OMAP_TIMER_WAKEUP_EN_REG, value, 0);
 }
 
@@ -412,7 +412,7 @@ __omap_dm_timer_read_counter(struct omap_dm_timer *timer, int posted)
 static inline void __omap_dm_timer_write_status(struct omap_dm_timer *timer,
                                                unsigned int value)
 {
-       __raw_writel(value, timer->irq_stat);
+       writel_relaxed(value, timer->irq_stat);
 }
 
 #endif /* __ASM_ARCH_DMTIMER_H */