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Date: Mon, 22 May 2017 07:46:55 +0200 From: Jan Kiszka <jan.kiszka@...mens.com> To: Ard Biesheuvel <ard.biesheuvel@...aro.org>, Jarkko Nikula <jarkko.nikula@...ux.intel.com>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, mika.westerberg@...ux.intel.com, wsa@...-dreams.de, linux-i2c@...r.kernel.org, Lorenzo Pieralisi <lorenzo.pieralisi@....com> Cc: "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: [PATCH] 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@...mens.com> --- Affects 4.12-rc2. drivers/i2c/busses/i2c-designware-platdrv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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;
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