From: "Chew, Chiau Ee" <[email protected]>

Intel BayTrail LPSS includes two PWM controllers which can
be enumerated from ACPI namespace.

Signed-off-by: Chew, Chiau Ee <[email protected]>
Signed-off-by: Maurice Petallo <[email protected]>
---
 drivers/acpi/acpi_lpss.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 6745fe1..8c2bae9 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -102,6 +102,16 @@ static struct lpss_device_desc lpt_sdio_dev_desc = {
        .ltr_required = true,
 };
 
+static struct lpss_shared_clock pwm_clock = {
+       .name = "pwm_clk",
+       .rate = 25000000,
+};
+
+static struct lpss_device_desc byt_pwm_dev_desc = {
+       .clk_required = true,
+       .shared_clock = &pwm_clock,
+};
+
 static struct lpss_shared_clock uart_clock = {
        .name = "uart_clk",
        .rate = 44236800,
@@ -157,6 +167,7 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = 
{
        { "INT33C7", },
 
        /* BayTrail LPSS devices */
+       { "80860F09", (unsigned long)&byt_pwm_dev_desc },
        { "80860F0A", (unsigned long)&byt_uart_dev_desc },
        { "80860F0E", (unsigned long)&byt_spi_dev_desc },
        { "80860F14", (unsigned long)&byt_sdio_dev_desc },
-- 
1.7.10.4

-- 
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