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authorJan Kiszka <jan.kiszka@siemens.com>2017-05-22 07:46:55 +0200
committerWolfram Sang <wsa@the-dreams.de>2017-05-22 10:35:51 +0200
commite2c824924cdb41528932c550647406ad81336b18 (patch)
tree126ee9510b32f73fe42b4bd74d262d7244f3d3d8
parent5165da5923d6c7df6f2927b0113b2e4d9288661e (diff)
i2c: designware: Fix bogus sda_hold_time due to uninitialized vars
We need to initializes those variables to 0 for platforms that do not provide ACPI parameters. Otherwise, we set sda_hold_time to random values, breaking e.g. Galileo and IOT2000 boards. Fixes: 9d6408433019 ("i2c: designware: don't infer timings described by ACPI from clock rate") Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
-rw-r--r--drivers/i2c/busses/i2c-designware-platdrv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 6283b99d2b17..d1263b82d646 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -94,9 +94,9 @@ static void dw_i2c_acpi_params(struct platform_device *pdev, char method[],
static int dw_i2c_acpi_configure(struct platform_device *pdev)
{
struct dw_i2c_dev *dev = platform_get_drvdata(pdev);
+ u32 ss_ht = 0, fp_ht = 0, hs_ht = 0, fs_ht = 0;
acpi_handle handle = ACPI_HANDLE(&pdev->dev);
const struct acpi_device_id *id;
- u32 ss_ht, fp_ht, hs_ht, fs_ht;
struct acpi_device *adev;
const char *uid;