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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-03 10:01:44 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-09-03 10:01:44 -0700 |
| commit | 01b944fe1cd4e21a2a9ed51adbdbafe2d5e905ba (patch) | |
| tree | 85f506cf9fce3d8fd47cf624dd8698472bffc13f /drivers/input/joystick | |
| parent | e51e38494a8ecc18650efb0c840600637891de2c (diff) | |
| parent | 58f1eae48e5372200553de07b5ecc7574803ee91 (diff) | |
Merge branch 'next' into for-linus
Prepare first round of input updates for 4.3 merge window.
Diffstat (limited to 'drivers/input/joystick')
| -rw-r--r-- | drivers/input/joystick/zhenhua.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/input/joystick/zhenhua.c b/drivers/input/joystick/zhenhua.c index 30af2e8c670c..4a8258bf13fd 100644 --- a/drivers/input/joystick/zhenhua.c +++ b/drivers/input/joystick/zhenhua.c @@ -47,6 +47,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/bitrev.h> #include <linux/input.h> #include <linux/serio.h> @@ -72,16 +73,6 @@ struct zhenhua { char phys[32]; }; - -/* bits in all incoming bytes needs to be "reversed" */ -static int zhenhua_bitreverse(int x) -{ - x = ((x & 0xaa) >> 1) | ((x & 0x55) << 1); - x = ((x & 0xcc) >> 2) | ((x & 0x33) << 2); - x = ((x & 0xf0) >> 4) | ((x & 0x0f) << 4); - return x; -} - /* * zhenhua_process_packet() decodes packets the driver receives from the * RC transmitter. It updates the data accordingly. @@ -120,7 +111,7 @@ static irqreturn_t zhenhua_interrupt(struct serio *serio, unsigned char data, un return IRQ_HANDLED; /* wrong MSB -- ignore this byte */ if (zhenhua->idx < ZHENHUA_MAX_LENGTH) - zhenhua->data[zhenhua->idx++] = zhenhua_bitreverse(data); + zhenhua->data[zhenhua->idx++] = bitrev8(data); if (zhenhua->idx == ZHENHUA_MAX_LENGTH) { zhenhua_process_packet(zhenhua); |