[PATCH 8/9] TWL4030: use symbolic ISR/IMR register names during twl_init_irq()

Paul Walmsley
2008-07-18T01:35:25Z

twl_init_irq() uses a bunch of magic numbers as register indices; this
has already led to several errors, fixed earlier in this patch series.
Now use descriptive macros instead of magic numbers. This patch should
not change kernel behavior.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
---

drivers/i2c/chips/twl4030-core.c | 181 +++++++++++++++++++-------------------
1 files changed, 89 insertions(+), 92 deletions(-)

diff --git a/drivers/i2c/chips/twl4030-core.c b/drivers/i2c/chips/twl4030-core.c
index 1906635..5855f5f 100644
--- a/drivers/i2c/chips/twl4030-core.c
+++ b/drivers/i2c/chips/twl4030-core.c
@@ -40,6 +40,9 @@

#include <linux/i2c.h>
#include <linux/i2c/twl4030.h>
+#include <linux/i2c/twl4030-gpio.h>
+#include <linux/i2c/twl4030-madc.h>
+#include <linux/i2c/twl4030-pwrirq.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/device.h>
@@ -114,6 +117,23 @@
#define TWL4030_BASEADD_RTC 0x001C
#define TWL4030_BASEADD_SECURED_REG 0x0000

+/* TWL4030 BCI registers */
+#define TWL4030_INTERRUPTS_BCIIMR1A 0x2
+#define TWL4030_INTERRUPTS_BCIIMR2A 0x3
+#define TWL4030_INTERRUPTS_BCIIMR1B 0x6
+#define TWL4030_INTERRUPTS_BCIIMR2B 0x7
+#define TWL4030_INTERRUPTS_BCIISR1A 0x0
+#define TWL4030_INTERRUPTS_BCIISR2A 0x1
+#define TWL4030_INTERRUPTS_BCIISR1B 0x4
+#define TWL4030_INTERRUPTS_BCIISR2B 0x5
+
+/* TWL4030 keypad registers */
+#define TWL4030_KEYPAD_KEYP_IMR1 0x12
+#define TWL4030_KEYPAD_KEYP_IMR2 0x14
+#define TWL4030_KEYPAD_KEYP_ISR1 0x11
+#define TWL4030_KEYPAD_KEYP_ISR2 0x13
+
+
/* Triton Core internal information (END) */

/* Few power values */
@@ -748,108 +768,85 @@ static void twl_init_irq(void)
* handlers present.
*/

- /* PWR_IMR1 */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INT, 0xff, 0x1) < 0);
-
- /* PWR_IMR2 */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INT, 0xff, 0x3) < 0);
-
- /* Clear off any other pending interrupts on power */
- /* PWR_ISR1 */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INT, 0x00) < 0);
-
- /* PWR_ISR2 */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INT, 0x02) < 0);
+ /* Mask INT (PWR) interrupts at TWL4030 */
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INT, 0xff,
+ TWL4030_INT_PWR_IMR1) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INT, 0xff,
+ TWL4030_INT_PWR_IMR2) < 0);
+ /* Clear TWL4030 INT (PWR) ISRs */
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INT,
+ TWL4030_INT_PWR_ISR1) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INT,
+ TWL4030_INT_PWR_ISR2) < 0);

/* Slave address 0x4A */

- /* BCIIMR1A */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff, 0x2) < 0);
-
- /* BCIIMR2A */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff, 0x3) < 0);
-
- /* BCIIMR2A */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff, 0x6) < 0);
-
- /* BCIIMR2B */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff, 0x7) < 0);
-
- /* BCIISR1A */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INTERRUPTS, 0x0) < 0);
-
- /* BCIISR2A */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INTERRUPTS, 0x1) < 0);
-
- /* BCIISR1B */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INTERRUPTS, 0x4) < 0);
-
- /* BCIISR2B */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INTERRUPTS, 0x5) < 0);
+ /* Mask BCI interrupts at TWL4030 */
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
+ TWL4030_INTERRUPTS_BCIIMR1A) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
+ TWL4030_INTERRUPTS_BCIIMR2A) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
+ TWL4030_INTERRUPTS_BCIIMR1B) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
+ TWL4030_INTERRUPTS_BCIIMR2B) < 0);
+ /* Clear TWL4030 BCI ISRs */
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INTERRUPTS,
+ TWL4030_INTERRUPTS_BCIISR1A) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INTERRUPTS,
+ TWL4030_INTERRUPTS_BCIISR2A) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INTERRUPTS,
+ TWL4030_INTERRUPTS_BCIISR1B) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_INTERRUPTS,
+ TWL4030_INTERRUPTS_BCIISR2B) < 0);

/* MAD C */
- /* MADC_IMR1 */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_MADC, 0xff, 0x62) < 0);
-
- /* MADC_IMR2 */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_MADC, 0xff, 0x64) < 0);
-
- /* MADC_ISR1 */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_MADC, 0x61) < 0);
-
- /* MADC_ISR2 */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_MADC, 0x63) < 0);
+ /* Mask MADC interrupts at TWL4030 */
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_MADC, 0xff,
+ TWL4030_MADC_IMR1) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_MADC, 0xff,
+ TWL4030_MADC_IMR2) < 0);
+ /* Clear TWL4030 MADC ISRs */
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_MADC,
+ TWL4030_MADC_ISR1) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_MADC,
+ TWL4030_MADC_ISR2) < 0);

/* key Pad */
- /* KEYPAD - IMR1 */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_KEYPAD, 0xff, 0x12) < 0);
-
- /* KEYPAD - ISR1 */
+ /* Mask keypad interrupts at TWL4030 */
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_KEYPAD, 0xff,
+ TWL4030_KEYPAD_KEYP_IMR1) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_KEYPAD, 0xff,
+ TWL4030_KEYPAD_KEYP_IMR2) < 0);
+ /* Clear TWL4030 keypad ISRs */
/* XXX does this still need to be done twice for some reason? */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_KEYPAD, 0x11) < 0);
-
- /* KEYPAD - IMR2 */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_KEYPAD, 0xff, 0x14) < 0);
-
- /* KEYPAD - ISR2 */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_KEYPAD, 0x13) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_KEYPAD,
+ TWL4030_KEYPAD_KEYP_ISR1) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_KEYPAD,
+ TWL4030_KEYPAD_KEYP_ISR2) < 0);

/* Slave address 0x49 */
- /* GPIO_IMR1A */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x1c) < 0);
-
- /* GPIO_IMR2A */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x1d) < 0);
-
- /* GPIO_IMR3A */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x1e) < 0);
-
- /* GPIO_IMR1B */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x22) < 0);
-
- /* GPIO_IMR2B */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x23) < 0);
-
- /* GPIO_IMR3B */
- WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff, 0x24) < 0);
-
- /* GPIO_ISR1A */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, 0x19) < 0);
-
- /* GPIO_ISR2A */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, 0x1a) < 0);
-
- /* GPIO_ISR3A */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, 0x1b) < 0);
-
- /* GPIO_ISR1B */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, 0x1f) < 0);
-
- /* GPIO_ISR2B */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, 0x20) < 0);
-
- /* GPIO_ISR3B */
- WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, 0x21) < 0);
+ /* Mask GPIO interrupts at TWL4030 */
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff,
+ REG_GPIO_IMR1A) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff,
+ REG_GPIO_IMR2A) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff,
+ REG_GPIO_IMR3A) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff,
+ REG_GPIO_IMR1B) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff,
+ REG_GPIO_IMR2B) < 0);
+ WARN_ON(twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0xff,
+ REG_GPIO_IMR3B) < 0);
+
+ /* Clear TWL4030 GPIO ISRs */
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, REG_GPIO_ISR1A) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, REG_GPIO_ISR2A) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, REG_GPIO_ISR3A) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, REG_GPIO_ISR1B) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, REG_GPIO_ISR2B) < 0);
+ WARN_ON(twl4030_i2c_clear_isr(TWL4030_MODULE_GPIO, REG_GPIO_ISR3B) < 0);

/* install an irq handler for each of the PIH modules */
for (i = TWL4030_IRQ_BASE; i < TWL4030_IRQ_END; i++) {