diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-11-25 22:15:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-11 22:37:53 -0800 |
| commit | 617bf5aceea95873945f5d57fe114e1599cb6dc0 (patch) | |
| tree | 6903628f442b9c1edd26447383ac09207a8fefe4 | |
| parent | aea389e583d48fef7341834eba195bcb888061e5 (diff) | |
can: flexcan: use correct clock as base for bit rate calculation
commit 1a3e5173f5e72cbf7f0c8927b33082e361c16d72 upstream.
The flexcan IP core uses the peripheral clock ("per") as basic clock for the
bit timing calculation. However the driver uses the the wrong clock ("ipg").
This leads to wrong bit rates if the rates on both clock are different.
This patch fixes the problem by using the correct clock for the bit rate
calculation.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/can/flexcan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 8f5ce747feb..c1c3b132fed 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -1020,13 +1020,13 @@ static int flexcan_probe(struct platform_device *pdev) dev_err(&pdev->dev, "no ipg clock defined\n"); return PTR_ERR(clk_ipg); } - clock_freq = clk_get_rate(clk_ipg); clk_per = devm_clk_get(&pdev->dev, "per"); if (IS_ERR(clk_per)) { dev_err(&pdev->dev, "no per clock defined\n"); return PTR_ERR(clk_per); } + clock_freq = clk_get_rate(clk_per); } mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); |