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[v2,3/4] da850-evm: extract defines for SEL{A,B,C} pins in UI expander

Message ID aa85c5d83111add3a2ed3495ac13bffe5e6b885d.1289935504.git.bengardiner@nanometrics.ca (mailing list archive)
State New, archived
Headers show

Commit Message

Ben Gardiner Nov. 16, 2010, 7:39 p.m. UTC
None
diff mbox

Patch

diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index ff71ffd..dcf21e5 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -292,6 +292,9 @@  static const char const *ui_expander_names[] = {
 	"pb7", "pb6", "pb5", "pb4", "pb3", "pb2", "pb1"
 };
 
+#define DA850_SEL_A_OFFSET	7
+#define DA850_SEL_B_OFFSET	6
+#define DA850_SEL_C_OFFSET	5
 #define DA850_UI_PB8_OFFSET	8
 #define DA850_N_UI_PB		8
 
@@ -336,23 +339,23 @@  static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
 {
 	int sel_a, sel_b, sel_c, ret;
 
-	sel_a = gpio + 7;
-	sel_b = gpio + 6;
-	sel_c = gpio + 5;
+	sel_a = gpio + DA850_SEL_A_OFFSET;
+	sel_b = gpio + DA850_SEL_B_OFFSET;
+	sel_c = gpio + DA850_SEL_C_OFFSET;
 
-	ret = gpio_request(sel_a, "sel_a");
+	ret = gpio_request(sel_a, ui_expander_names[DA850_SEL_A_OFFSET]);
 	if (ret) {
 		pr_warning("Cannot open UI expander pin %d\n", sel_a);
 		goto exp_setup_sela_fail;
 	}
 
-	ret = gpio_request(sel_b, "sel_b");
+	ret = gpio_request(sel_b, ui_expander_names[DA850_SEL_B_OFFSET]);
 	if (ret) {
 		pr_warning("Cannot open UI expander pin %d\n", sel_b);
 		goto exp_setup_selb_fail;
 	}
 
-	ret = gpio_request(sel_c, "sel_c");
+	ret = gpio_request(sel_c, ui_expander_names[DA850_SEL_C_OFFSET]);
 	if (ret) {
 		pr_warning("Cannot open UI expander pin %d\n", sel_c);
 		goto exp_setup_selc_fail;
@@ -396,13 +399,13 @@  static int da850_evm_ui_expander_teardown(struct i2c_client *client,
 	platform_device_unregister(&user_ui_pb_gpio_key_device);
 
 	/* deselect all functionalities */
-	gpio_set_value(gpio + 5, 1);
-	gpio_set_value(gpio + 6, 1);
-	gpio_set_value(gpio + 7, 1);
+	gpio_set_value(gpio + DA850_SEL_C_OFFSET, 1);
+	gpio_set_value(gpio + DA850_SEL_B_OFFSET, 1);
+	gpio_set_value(gpio + DA850_SEL_A_OFFSET, 1);
 
-	gpio_free(gpio + 5);
-	gpio_free(gpio + 6);
-	gpio_free(gpio + 7);
+	gpio_free(gpio + DA850_SEL_C_OFFSET);
+	gpio_free(gpio + DA850_SEL_B_OFFSET);
+	gpio_free(gpio + DA850_SEL_A_OFFSET);
 
 	return 0;
 }