Thread (7 messages) 7 messages, 2 authors, 2020-01-31

Re: [PATCH v2] can: tcan4x5x: Turn on the power before parsing the config

From: Dan Murphy <hidden>
Date: 2020-01-24 19:53:20
Also in: linux-can, lkml

Marc

On 1/2/20 6:38 AM, Marc Kleine-Budde wrote:
On 12/10/19 5:32 PM, Dan Murphy wrote:
quoted
The parse config function now performs action on the device either
reading or writing and a reset.  If the regulator is managed it needs
to be turned on.  So turn on the regulator if available if the parsing
fails then turn off the regulator.
Another BTW:
Consider converting the switching of the vsup to runtime_pm.

Yet another one:
Why do you disable the clocks in the error path of tcan4x5x_can_probe(),
but never enable them?
quoted
out_clk:
	if (!IS_ERR(mcan_class->cclk)) {
		clk_disable_unprepare(mcan_class->cclk);
		clk_disable_unprepare(mcan_class->hclk);
	}
- please move the clock handling from the m_can.c to the individual
   driver
- please move the clock handling to runtime_pm in the individual driver
- remove the obsolete m_can_class_get_clocks()
- make runtime_pm mandatory
Ack to the above I have made these changes locally.  Will submit next week.

Dan

regards,
Marc
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