ALSA: Clean up 64bit division functions

Replace the house-made div64_32() with the standard div_u64*() functions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

2 files changed, 5 insertions, 6 deletions

diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 314e73531bd1..bcfdbb5ebc40 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -28,6 +28,7 @@
 #include <linux/pci.h>
 #include <linux/firmware.h>
 #include <linux/moduleparam.h>
+#include <linux/math64.h>
 
 #include <sound/core.h>
 #include <sound/control.h>
@@ -1047,7 +1048,6 @@ static int hdsp_set_interrupt_interval(struct hdsp *s, unsigned int frames)
 static void hdsp_set_dds_value(struct hdsp *hdsp, int rate)
 {
         u64 n;
-        u32 r;
 
         if (rate >= 112000)
                 rate /= 4;
@@ -1055,7 +1055,7 @@ static void hdsp_set_dds_value(struct hdsp *hdsp, int rate)
                 rate /= 2;
 
         n = DDS_NUMERATOR;
-        div64_32(&n, rate, &r);
+        n = div_u64(n, rate);
         /* n should be less than 2^32 for being written to FREQ register */
         snd_BUG_ON(n >> 32);
         /* HDSP_freqReg and HDSP_resetPointer are the same, so keep the DDS
@@ -3097,7 +3097,6 @@ static int snd_hdsp_get_adat_sync_check(struct snd_kcontrol *kcontrol, struct sn
 static int hdsp_dds_offset(struct hdsp *hdsp)
 {
         u64 n;
-        u32 r;
         unsigned int dds_value = hdsp->dds_value;
         int system_sample_rate = hdsp->system_sample_rate;
 
@@ -3109,7 +3108,7 @@ static int hdsp_dds_offset(struct hdsp *hdsp)
          * dds_value = n / rate
          * rate = n / dds_value
          */
-        div64_32(&n, dds_value, &r);
+        n = div_u64(n, dds_value);
         if (system_sample_rate >= 112000)
                 n *= 4;
         else if (system_sample_rate >= 56000)
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index bac2dc0c5d85..0dce331a2a3b 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -29,6 +29,7 @@
 #include <linux/moduleparam.h>
 #include <linux/slab.h>
 #include <linux/pci.h>
+#include <linux/math64.h>
 #include <asm/io.h>
 
 #include <sound/core.h>
@@ -831,7 +832,6 @@ static int hdspm_set_interrupt_interval(struct hdspm * s, unsigned int frames)
 static void hdspm_set_dds_value(struct hdspm *hdspm, int rate)
 {
         u64 n;
-        u32 r;
         
         if (rate >= 112000)
                 rate /= 4;
@@ -844,7 +844,7 @@ static void hdspm_set_dds_value(struct hdspm *hdspm, int rate)
         */         
         /* n = 104857600000000ULL; */ /*  =  2^20 * 10^8 */
         n = 110100480000000ULL;    /* Value checked for AES32 and MADI */
-        div64_32(&n, rate, &r);
+        n = div_u64(n, rate);
         /* n should be less than 2^32 for being written to FREQ register */
         snd_BUG_ON(n >> 32);
         hdspm_write(hdspm, HDSPM_freqReg, (u32)n);