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authorMatt Porter <mporter@ti.com>2012-02-23 18:16:04 +0400
committerTony Lindgren <tony@atomide.com>2012-02-23 23:28:53 +0400
commite4b0b2cbbbaa085103229c03820755f20a64e581 (patch)
tree13affedac33eca4b3fa4c1067da8262591881ff7 /arch
parent2226957ed2d84add88368aa4c4f69eae4b4843a3 (diff)
downloadlinux-e4b0b2cbbbaa085103229c03820755f20a64e581.tar.xz
ARM: OMAP2+: gpmc-smsc911x: add required smsc911x regulators
This fixes smsc911x support on platforms using gpmc_smsc911x_init(). Commit c7e963f6888816 (net/smsc911x: Add regulator support) added the requirement that platforms provide vdd33a and vddvario supplies. Signed-off-by: Matt Porter <mporter@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-omap2/gpmc-smsc911x.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c
index 997033129d26..bbb870c04a5e 100644
--- a/arch/arm/mach-omap2/gpmc-smsc911x.c
+++ b/arch/arm/mach-omap2/gpmc-smsc911x.c
@@ -19,6 +19,8 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/smsc911x.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
#include <plat/board.h>
#include <plat/gpmc.h>
@@ -42,6 +44,50 @@ static struct smsc911x_platform_config gpmc_smsc911x_config = {
.flags = SMSC911X_USE_16BIT,
};
+static struct regulator_consumer_supply gpmc_smsc911x_supply[] = {
+ REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+ REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
+/* Generic regulator definition to satisfy smsc911x */
+static struct regulator_init_data gpmc_smsc911x_reg_init_data = {
+ .constraints = {
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL
+ | REGULATOR_MODE_STANDBY,
+ .valid_ops_mask = REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(gpmc_smsc911x_supply),
+ .consumer_supplies = gpmc_smsc911x_supply,
+};
+
+static struct fixed_voltage_config gpmc_smsc911x_fixed_reg_data = {
+ .supply_name = "gpmc_smsc911x",
+ .microvolts = 3300000,
+ .gpio = -EINVAL,
+ .startup_delay = 0,
+ .enable_high = 0,
+ .enabled_at_boot = 1,
+ .init_data = &gpmc_smsc911x_reg_init_data,
+};
+
+/*
+ * Platform device id of 42 is a temporary fix to avoid conflicts
+ * with other reg-fixed-voltage devices. The real fix should
+ * involve the driver core providing a way of dynamically
+ * assigning a unique id on registration for platform devices
+ * in the same name space.
+ */
+static struct platform_device gpmc_smsc911x_regulator = {
+ .name = "reg-fixed-voltage",
+ .id = 42,
+ .dev = {
+ .platform_data = &gpmc_smsc911x_fixed_reg_data,
+ },
+};
+
/*
* Initialize smsc911x device connected to the GPMC. Note that we
* assume that pin multiplexing is done in the board-*.c file,
@@ -55,6 +101,12 @@ void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data)
gpmc_cfg = board_data;
+ ret = platform_device_register(&gpmc_smsc911x_regulator);
+ if (ret < 0) {
+ pr_err("Unable to register smsc911x regulators: %d\n", ret);
+ return;
+ }
+
if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) {
pr_err("Failed to request GPMC mem region\n");
return;