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pwm: tiehrpwm: Handle deferred probe with dev_err_probe() 

The devm_clk_get() may return -EPROBE_DEFER which is not handled properly
by TI EHRPWM driver and causes unnecessary boot log messages.

Hence, add proper deferred probe handling with new dev_err_probe() API.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
zero-sugar-mainline-defconfig
Grygorii Strashko 2020-10-30 22:12:54 +02:00 committed by Thierry Reding
parent e3aa45f2f8
commit 44db5363fa
1 changed files with 4 additions and 8 deletions
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12
drivers/pwm/pwm-tiehrpwm.c
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@ -436,10 +436,8 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
}
}
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
return PTR_ERR(clk);
}
if (IS_ERR(clk))
return dev_err_probe(&pdev->dev, PTR_ERR(clk), "Failed to get fck\n");
pc->clk_rate = clk_get_rate(clk);
if (!pc->clk_rate) {
@ -460,10 +458,8 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
/* Acquire tbclk for Time Base EHRPWM submodule */
pc->tbclk = devm_clk_get(&pdev->dev, "tbclk");
if (IS_ERR(pc->tbclk)) {
dev_err(&pdev->dev, "Failed to get tbclk\n");
return PTR_ERR(pc->tbclk);
}
if (IS_ERR(pc->tbclk))
return dev_err_probe(&pdev->dev, PTR_ERR(pc->tbclk), "Failed to get tbclk\n");
ret = clk_prepare(pc->tbclk);
if (ret < 0) {