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-rw-r--r--drivers/acpi/acpi_lpss.c21
-rw-r--r--drivers/acpi/ec.c4
-rw-r--r--drivers/acpi/resource.c2
-rw-r--r--drivers/acpi/video.c9
4 files changed, 30 insertions, 6 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 02e835f3cf8a..657964e8ab7e 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -105,7 +105,7 @@ static void lpss_uart_setup(struct lpss_private_data *pdata)
}
}
-static void byt_i2c_setup(struct lpss_private_data *pdata)
+static void lpss_deassert_reset(struct lpss_private_data *pdata)
{
unsigned int offset;
u32 val;
@@ -114,9 +114,18 @@ static void byt_i2c_setup(struct lpss_private_data *pdata)
val = readl(pdata->mmio_base + offset);
val |= LPSS_RESETS_RESET_APB | LPSS_RESETS_RESET_FUNC;
writel(val, pdata->mmio_base + offset);
+}
+
+#define LPSS_I2C_ENABLE 0x6c
+
+static void byt_i2c_setup(struct lpss_private_data *pdata)
+{
+ lpss_deassert_reset(pdata);
if (readl(pdata->mmio_base + pdata->dev_desc->prv_offset))
pdata->fixed_clk_rate = 133000000;
+
+ writel(0, pdata->mmio_base + LPSS_I2C_ENABLE);
}
static struct lpss_device_desc lpt_dev_desc = {
@@ -125,7 +134,7 @@ static struct lpss_device_desc lpt_dev_desc = {
};
static struct lpss_device_desc lpt_i2c_dev_desc = {
- .flags = LPSS_CLK | LPSS_LTR,
+ .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR,
.prv_offset = 0x800,
};
@@ -166,6 +175,12 @@ static struct lpss_device_desc byt_i2c_dev_desc = {
.setup = byt_i2c_setup,
};
+static struct lpss_device_desc bsw_spi_dev_desc = {
+ .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX,
+ .prv_offset = 0x400,
+ .setup = lpss_deassert_reset,
+};
+
#else
#define LPSS_ADDR(desc) (0UL)
@@ -198,7 +213,7 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = {
/* Braswell LPSS devices */
{ "80862288", LPSS_ADDR(byt_pwm_dev_desc) },
{ "8086228A", LPSS_ADDR(byt_uart_dev_desc) },
- { "8086228E", LPSS_ADDR(byt_spi_dev_desc) },
+ { "8086228E", LPSS_ADDR(bsw_spi_dev_desc) },
{ "808622C1", LPSS_ADDR(byt_i2c_dev_desc) },
{ "INT3430", LPSS_ADDR(lpt_dev_desc) },
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 982b67faaaf3..a8dd2f763382 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -680,7 +680,7 @@ static void acpi_ec_start(struct acpi_ec *ec, bool resuming)
/* Enable GPE for event processing (SCI_EVT=1) */
if (!resuming)
acpi_ec_submit_request(ec);
- pr_info("+++++ EC started +++++\n");
+ pr_debug("EC started\n");
}
spin_unlock_irqrestore(&ec->lock, flags);
}
@@ -712,7 +712,7 @@ static void acpi_ec_stop(struct acpi_ec *ec, bool suspending)
acpi_ec_complete_request(ec);
clear_bit(EC_FLAGS_STARTED, &ec->flags);
clear_bit(EC_FLAGS_STOPPED, &ec->flags);
- pr_info("+++++ EC stopped +++++\n");
+ pr_debug("EC stopped\n");
}
spin_unlock_irqrestore(&ec->lock, flags);
}
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 4752b9939987..c723668e3e27 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -46,7 +46,7 @@ static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io)
if (len && reslen && reslen == len && start <= end)
return true;
- pr_info("ACPI: invalid or unassigned resource %s [%016llx - %016llx] length [%016llx]\n",
+ pr_debug("ACPI: invalid or unassigned resource %s [%016llx - %016llx] length [%016llx]\n",
io ? "io" : "mem", start, end, len);
return false;
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 88a4f99dd2a7..debd30917010 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -540,6 +540,15 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"),
},
},
+ {
+ /* https://bugs.freedesktop.org/show_bug.cgi?id=87286 */
+ .callback = video_disable_native_backlight,
+ .ident = "SAMSUNG 900X3C/900X3D/900X3E/900X4C/900X4D",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "900X3C/900X3D/900X3E/900X4C/900X4D"),
+ },
+ },
{
/* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */