@@ -19,6 +19,8 @@
#include <linux/irq.h>
#include <linux/clk.h>
#include <linux/i2c.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -379,6 +381,44 @@ static struct i2c_board_info mxs_i2c0_board_info[] __initdata = {
},
};
+#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
+static struct regulator_consumer_supply mx28evk_audio_consumer_supplies[] = {
+ REGULATOR_SUPPLY("VDDA", "0-000a"),
+ REGULATOR_SUPPLY("VDDIO", "0-000a"),
+};
+
+static struct regulator_init_data mx28evk_vdd_reg_init_data = {
+ .constraints = {
+ .name = "3V3",
+ .always_on = 1,
+ },
+ .consumer_supplies = mx28evk_audio_consumer_supplies,
+ .num_consumer_supplies = ARRAY_SIZE(mx28evk_audio_consumer_supplies),
+};
+
+static struct fixed_voltage_config mx28evk_vdd_pdata = {
+ .supply_name = "board-3V3",
+ .microvolts = 3300000,
+ .gpio = -EINVAL,
+ .enabled_at_boot = 1,
+ .init_data = &mx28evk_vdd_reg_init_data,
+};
+static struct platform_device mx28evk_voltage_regulator = {
+ .name = "reg-fixed-voltage",
+ .id = -1,
+ .num_resources = 0,
+ .dev = {
+ .platform_data = &mx28evk_vdd_pdata,
+ },
+};
+static void __init mx28evk_add_regulators(void)
+{
+ platform_device_register(&mx28evk_voltage_regulator);
+}
+#else
+static void __init mx28evk_add_regulators(void) {}
+#endif
+
static void __init mx28evk_init(void)
{
int ret;
@@ -426,6 +466,8 @@ static void __init mx28evk_init(void)
i2c_register_board_info(0, mxs_i2c0_board_info,
ARRAY_SIZE(mxs_i2c0_board_info));
+ mx28evk_add_regulators();
+
mxs_add_platform_device("mxs-sgtl5000", 0, NULL, 0,
NULL, 0);
Add fixed regulator to enable basic audio-support until full regulator support is done. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Dong Aisheng <b29396@freescale.com> --- Aisheng: This is the other patch (together with [1]) making the sgtl-hack obsolete. Needs fixed regulators, of course. [1] http://mailman.alsa-project.org/pipermail/alsa-devel/2011-July/041974.html arch/arm/mach-mxs/mach-mx28evk.c | 42 ++++++++++++++++++++++++++++++++++++++ 1 files changed, 42 insertions(+), 0 deletions(-)