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mfd: Add support for WM8320 PMICs
The WM8320 is an integrated power management subsystem providing voltage regulators, RTC, watchdog and other functionality. The WM8320 is derived from the WM831x and therefore shares most of the driver code with the WM831x. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mark Brown
Samuel Ortiz
parent
6f2ecaae72
commit
d4e0a89e3d
3 changed files with 163 additions and 3 deletions
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@ -185,12 +185,12 @@ config MFD_WM8400
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the functionality of the device.
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config MFD_WM831X
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tristate "Support Wolfson Microelectronics WM831x PMICs"
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tristate "Support Wolfson Microelectronics WM831x/2x PMICs"
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select MFD_CORE
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depends on I2C
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help
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Support for the Wolfson Microelecronics WM831x PMICs. This
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driver provides common support for accessing the device,
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Support for the Wolfson Microelecronics WM831x and WM832x PMICs.
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This driver provides common support for accessing the device,
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additional drivers must be enabled in order to use the
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functionality of the device.
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@ -93,6 +93,7 @@ enum wm831x_parent {
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WM8310 = 0x8310,
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WM8311 = 0x8311,
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WM8312 = 0x8312,
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WM8320 = 0x8320,
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};
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static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
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@ -478,6 +479,20 @@ static struct resource wm831x_dcdc4_resources[] = {
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},
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};
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static struct resource wm8320_dcdc4_buck_resources[] = {
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{
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.start = WM831X_DC4_CONTROL,
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.end = WM832X_DC4_SLEEP_CONTROL,
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.flags = IORESOURCE_IO,
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},
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{
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.name = "UV",
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.start = WM831X_IRQ_UV_DC4,
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.end = WM831X_IRQ_UV_DC4,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource wm831x_gpio_resources[] = {
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{
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.start = WM831X_IRQ_GPIO_1,
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@ -1237,6 +1252,137 @@ static struct mfd_cell wm8312_devs[] = {
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},
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};
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static struct mfd_cell wm8320_devs[] = {
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{
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.name = "wm831x-backup",
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},
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{
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.name = "wm831x-buckv",
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.id = 1,
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.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
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.resources = wm831x_dcdc1_resources,
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},
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{
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.name = "wm831x-buckv",
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.id = 2,
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.num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
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.resources = wm831x_dcdc2_resources,
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},
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{
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.name = "wm831x-buckp",
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.id = 3,
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.num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
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.resources = wm831x_dcdc3_resources,
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},
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{
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.name = "wm831x-buckp",
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.id = 4,
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.num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
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.resources = wm8320_dcdc4_buck_resources,
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},
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{
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.name = "wm831x-gpio",
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.num_resources = ARRAY_SIZE(wm831x_gpio_resources),
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.resources = wm831x_gpio_resources,
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},
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{
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.name = "wm831x-hwmon",
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},
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{
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.name = "wm831x-ldo",
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.id = 1,
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.num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
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.resources = wm831x_ldo1_resources,
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},
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{
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.name = "wm831x-ldo",
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.id = 2,
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.num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
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.resources = wm831x_ldo2_resources,
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},
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{
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.name = "wm831x-ldo",
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.id = 3,
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.num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
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.resources = wm831x_ldo3_resources,
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},
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{
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.name = "wm831x-ldo",
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.id = 4,
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.num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
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.resources = wm831x_ldo4_resources,
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},
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{
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.name = "wm831x-ldo",
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.id = 5,
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.num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
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.resources = wm831x_ldo5_resources,
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},
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{
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.name = "wm831x-ldo",
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.id = 6,
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.num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
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.resources = wm831x_ldo6_resources,
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},
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{
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.name = "wm831x-aldo",
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.id = 7,
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.num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
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.resources = wm831x_ldo7_resources,
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},
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{
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.name = "wm831x-aldo",
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.id = 8,
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.num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
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.resources = wm831x_ldo8_resources,
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},
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{
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.name = "wm831x-aldo",
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.id = 9,
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.num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
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.resources = wm831x_ldo9_resources,
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},
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{
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.name = "wm831x-aldo",
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.id = 10,
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.num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
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.resources = wm831x_ldo10_resources,
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},
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{
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.name = "wm831x-alive-ldo",
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.id = 11,
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.num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
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.resources = wm831x_ldo11_resources,
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},
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{
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.name = "wm831x-on",
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.num_resources = ARRAY_SIZE(wm831x_on_resources),
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.resources = wm831x_on_resources,
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},
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{
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.name = "wm831x-rtc",
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.num_resources = ARRAY_SIZE(wm831x_rtc_resources),
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.resources = wm831x_rtc_resources,
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},
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{
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.name = "wm831x-status",
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.id = 1,
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.num_resources = ARRAY_SIZE(wm831x_status1_resources),
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.resources = wm831x_status1_resources,
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},
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{
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.name = "wm831x-status",
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.id = 2,
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.num_resources = ARRAY_SIZE(wm831x_status2_resources),
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.resources = wm831x_status2_resources,
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},
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{
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.name = "wm831x-watchdog",
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.num_resources = ARRAY_SIZE(wm831x_wdt_resources),
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.resources = wm831x_wdt_resources,
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},
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};
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static struct mfd_cell backlight_devs[] = {
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{
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.name = "wm831x-backlight",
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@ -1309,6 +1455,12 @@ static int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
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dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
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break;
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case WM8320:
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parent = WM8320;
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wm831x->num_gpio = 12;
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dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
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break;
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default:
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dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
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ret = -EINVAL;
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@ -1367,6 +1519,12 @@ static int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
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NULL, 0);
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break;
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case WM8320:
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ret = mfd_add_devices(wm831x->dev, -1,
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wm8320_devs, ARRAY_SIZE(wm8320_devs),
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NULL, 0);
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break;
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default:
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/* If this happens the bus probe function is buggy */
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BUG();
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@ -1492,6 +1650,7 @@ static const struct i2c_device_id wm831x_i2c_id[] = {
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{ "wm8310", WM8310 },
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{ "wm8311", WM8311 },
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{ "wm8312", WM8312 },
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{ "wm8320", WM8320 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, wm831x_i2c_id);
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@ -117,6 +117,7 @@
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#define WM831X_DC3_SLEEP_CONTROL 0x4063
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#define WM831X_DC4_CONTROL 0x4064
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#define WM831X_DC4_SLEEP_CONTROL 0x4065
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#define WM832X_DC4_SLEEP_CONTROL 0x4067
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#define WM831X_EPE1_CONTROL 0x4066
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#define WM831X_EPE2_CONTROL 0x4067
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#define WM831X_LDO1_CONTROL 0x4068
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