linux-kernel - Re: [PATCH 3/9] clk: samsung: gs101: add support for cmu

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Date: Sat, 27 Jan 2024 01:40:06 +0000
From: André Draszik <andre.draszik@...aro.org>
To: peter.griffin@...aro.org, mturquette@...libre.com, sboyd@...nel.org, 
	robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org
Cc: linux-kernel@...r.kernel.org, kernel-team@...roid.com, 
 tudor.ambarus@...aro.org, willmcvicker@...gle.com,
 semen.protsenko@...aro.org,  alim.akhtar@...sung.com,
 s.nawrocki@...sung.com, tomasz.figa@...il.com,  cw00.choi@...sung.com,
 linux-arm-kernel@...ts.infradead.org,  linux-samsung-soc@...r.kernel.org,
 linux-clk@...r.kernel.org,  devicetree@...r.kernel.org
Subject: Re: [PATCH 3/9] clk: samsung: gs101: add support for cmu_peric1

On Sat, 2024-01-27 at 00:19 +0000, André Draszik wrote:
> The clocks marked as CLK_IGNORE_UNUSED need to be kept on until we have
> updated the respective drivers for the following reasons:
>     * gout_peric1_gpio_peric1_pclk is required by the pinctrl
>       configuration. With this clock disabled, reconfiguring the pins
>       (for USI/I2C, USI/UART) will hang during register access.
>       Since pingctrl-samsung doesn't support a clock at the moment, we
>       just keep the kernel from disabling it at boot, until we have an
>       update for samsung-pinctrl, at which point we'll drop the flag.

I have patches for pinctrl-samsung implementing this new clock ready. Will
send next week.

Cheers,
Andre'