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i2c: rk3x: enable clock before getting rate

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clk_get_rate() is documented as requiring the clock to be enabled.
Ensure that the bus clock is enabled before calling clk_get_rate() in
rk3x_i2c_probe() to satisfy this requirement.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
John Keeping 2021-10-04 14:15:39 +01:00 committed by Wolfram Sang
parent 41acd4b03c
commit b57e90189f
1 changed files with 7 additions and 0 deletions
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7
drivers/i2c/busses/i2c-rk3x.c
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@ -1338,8 +1338,15 @@ static int rk3x_i2c_probe(struct platform_device *pdev)
goto err_pclk;
}
ret = clk_enable(i2c->clk);
if (ret < 0) {
dev_err(&pdev->dev, "Can't enable bus clk: %d\n", ret);
goto err_clk_notifier;
}
clk_rate = clk_get_rate(i2c->clk);
rk3x_i2c_adapt_div(i2c, clk_rate);
clk_disable(i2c->clk);
ret = i2c_add_adapter(&i2c->adap);
if (ret < 0)