diff options
| author | Rui Teng <rui.teng@linux.vnet.ibm.com> | 2016-04-26 09:45:13 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-04-29 13:59:00 -0700 |
| commit | 82ba0d8ba48df5442ff31ee6f62b594f062bc162 (patch) | |
| tree | 43097efd729bc829a33fa8c7170be52d3513b6e9 | |
| parent | 9e4cc255e6e18418ddbeea447efa506bb43d57a2 (diff) | |
Input: twl4030 - fix unsafe macro definition
The bitwise shift operator has lower priority than plus operator. So the
values on macros should be enclosed in parentheses.
For example, "(1 << 4 + 1)" means "(1 << (4 + 1))", but it is not expected
by the macros.
And also fix other two coding style problems reported by
scripts/checkpatch.pl.
Signed-off-by: Rui Teng <rui.teng@linux.vnet.ibm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | drivers/input/keyboard/twl4030_keypad.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c index bbcccd67247d..323a0fb575a4 100644 --- a/drivers/input/keyboard/twl4030_keypad.c +++ b/drivers/input/keyboard/twl4030_keypad.c @@ -61,9 +61,9 @@ struct twl4030_keypad { unsigned short keymap[TWL4030_KEYMAP_SIZE]; u16 kp_state[TWL4030_MAX_ROWS]; bool autorepeat; - unsigned n_rows; - unsigned n_cols; - unsigned irq; + unsigned int n_rows; + unsigned int n_cols; + unsigned int irq; struct device *dbg_dev; struct input_dev *input; @@ -110,7 +110,7 @@ struct twl4030_keypad { #define KEYP_CTRL_KBD_ON BIT(6) /* KEYP_DEB, KEYP_LONG_KEY, KEYP_TIMEOUT_x*/ -#define KEYP_PERIOD_US(t, prescale) ((t) / (31 << (prescale + 1)) - 1) +#define KEYP_PERIOD_US(t, prescale) ((t) / (31 << ((prescale) + 1)) - 1) /* KEYP_LK_PTV_REG Fields */ #define KEYP_LK_PTV_PTV_SHIFT 5 @@ -162,9 +162,10 @@ static int twl4030_kpwrite_u8(struct twl4030_keypad *kp, u8 data, u32 reg) static inline u16 twl4030_col_xlate(struct twl4030_keypad *kp, u8 col) { - /* If all bits in a row are active for all coloumns then + /* + * If all bits in a row are active for all columns then * we have that row line connected to gnd. Mark this - * key on as if it was on matrix position n_cols (ie + * key on as if it was on matrix position n_cols (i.e. * one higher than the size of the matrix). */ if (col == 0xFF) @@ -209,9 +210,9 @@ static void twl4030_kp_scan(struct twl4030_keypad *kp, bool release_all) u16 new_state[TWL4030_MAX_ROWS]; int col, row; - if (release_all) + if (release_all) { memset(new_state, 0, sizeof(new_state)); - else { + } else { /* check for any changes */ int ret = twl4030_read_kp_matrix_state(kp, new_state); @@ -262,8 +263,10 @@ static irqreturn_t do_kp_irq(int irq, void *_kp) /* Read & Clear TWL4030 pending interrupt */ ret = twl4030_kpread(kp, ®, KEYP_ISR1, 1); - /* Release all keys if I2C has gone bad or - * the KEYP has gone to idle state */ + /* + * Release all keys if I2C has gone bad or + * the KEYP has gone to idle state. + */ if (ret >= 0 && (reg & KEYP_IMR1_KP)) twl4030_kp_scan(kp, false); else @@ -283,7 +286,8 @@ static int twl4030_kp_program(struct twl4030_keypad *kp) if (twl4030_kpwrite_u8(kp, reg, KEYP_CTRL) < 0) return -EIO; - /* NOTE: we could use sih_setup() here to package keypad + /* + * NOTE: we could use sih_setup() here to package keypad * event sources as four different IRQs ... but we don't. */ @@ -312,7 +316,7 @@ static int twl4030_kp_program(struct twl4030_keypad *kp) /* * Enable Clear-on-Read; disable remembering events that fire - * after the IRQ but before our handler acks (reads) them, + * after the IRQ but before our handler acks (reads) them. */ reg = TWL4030_SIH_CTRL_COR_MASK | TWL4030_SIH_CTRL_PENDDIS_MASK; if (twl4030_kpwrite_u8(kp, reg, KEYP_SIH_CTRL) < 0) |