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authorLinus Walleij <linus.walleij@linaro.org>2012-07-05 10:58:54 -0400
committerLinus Walleij <linus.walleij@linaro.org>2012-07-05 10:58:54 -0400
commit5e67cc4041304a0dc77e6cfbb355d69eefb883d0 (patch)
tree4eb04d0a2890f2e0a182e762071fea4ffb5abe5d /drivers/gpio
parent6887a4131da3adaab011613776d865f4bcfb5678 (diff)
parent96b70641b937e99c1579cb6ebbcdb7b0af98cdd0 (diff)
Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6 into grant
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-pca953x.c28
-rw-r--r--drivers/gpio/gpiolib-of.c2
2 files changed, 17 insertions, 13 deletions
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 1c313c710be..de24af20244 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -98,12 +98,11 @@ static int pca953x_write_reg(struct pca953x_chip *chip, int reg, u32 val)
98 if (chip->gpio_chip.ngpio <= 8) 98 if (chip->gpio_chip.ngpio <= 8)
99 ret = i2c_smbus_write_byte_data(chip->client, reg, val); 99 ret = i2c_smbus_write_byte_data(chip->client, reg, val);
100 else if (chip->gpio_chip.ngpio == 24) { 100 else if (chip->gpio_chip.ngpio == 24) {
101 ret = i2c_smbus_write_word_data(chip->client, 101 cpu_to_le32s(&val);
102 ret = i2c_smbus_write_i2c_block_data(chip->client,
102 (reg << 2) | REG_ADDR_AI, 103 (reg << 2) | REG_ADDR_AI,
103 val & 0xffff); 104 3,
104 ret = i2c_smbus_write_byte_data(chip->client, 105 (u8 *) &val);
105 (reg << 2) + 2,
106 (val & 0xff0000) >> 16);
107 } 106 }
108 else { 107 else {
109 switch (chip->chip_type) { 108 switch (chip->chip_type) {
@@ -135,22 +134,27 @@ static int pca953x_read_reg(struct pca953x_chip *chip, int reg, u32 *val)
135{ 134{
136 int ret; 135 int ret;
137 136
138 if (chip->gpio_chip.ngpio <= 8) 137 if (chip->gpio_chip.ngpio <= 8) {
139 ret = i2c_smbus_read_byte_data(chip->client, reg); 138 ret = i2c_smbus_read_byte_data(chip->client, reg);
140 else if (chip->gpio_chip.ngpio == 24) { 139 *val = ret;
141 ret = i2c_smbus_read_word_data(chip->client, reg << 2);
142 ret |= (i2c_smbus_read_byte_data(chip->client,
143 (reg << 2) + 2)<<16);
144 } 140 }
145 else 141 else if (chip->gpio_chip.ngpio == 24) {
142 *val = 0;
143 ret = i2c_smbus_read_i2c_block_data(chip->client,
144 (reg << 2) | REG_ADDR_AI,
145 3,
146 (u8 *) val);
147 le32_to_cpus(val);
148 } else {
146 ret = i2c_smbus_read_word_data(chip->client, reg << 1); 149 ret = i2c_smbus_read_word_data(chip->client, reg << 1);
150 *val = ret;
151 }
147 152
148 if (ret < 0) { 153 if (ret < 0) {
149 dev_err(&chip->client->dev, "failed reading register\n"); 154 dev_err(&chip->client->dev, "failed reading register\n");
150 return ret; 155 return ret;
151 } 156 }
152 157
153 *val = (u32)ret;
154 return 0; 158 return 0;
155} 159}
156 160
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index d18068a9f3e..8389d4a0ec4 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -21,7 +21,7 @@
21#include <linux/of_gpio.h> 21#include <linux/of_gpio.h>
22#include <linux/slab.h> 22#include <linux/slab.h>
23 23
24/* Private data structure for of_gpiochip_is_match */ 24/* Private data structure for of_gpiochip_find_and_xlate */
25struct gg_data { 25struct gg_data {
26 enum of_gpio_flags *flags; 26 enum of_gpio_flags *flags;
27 struct of_phandle_args gpiospec; 27 struct of_phandle_args gpiospec;