linux-kernel - Re: [PATCH v2 05/12] tty: serial: samsung: set UPIO

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Date: Mon, 8 Jan 2024 14:29:54 +0000
From: Peter Griffin <peter.griffin@...aro.org>
To: Tudor Ambarus <tudor.ambarus@...aro.org>
Cc: robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, 
	mturquette@...libre.com, sboyd@...nel.org, conor+dt@...nel.org, 
	andi.shyti@...nel.org, alim.akhtar@...sung.com, gregkh@...uxfoundation.org, 
	jirislaby@...nel.org, s.nawrocki@...sung.com, tomasz.figa@...il.com, 
	cw00.choi@...sung.com, arnd@...db.de, semen.protsenko@...aro.org, 
	andre.draszik@...aro.org, saravanak@...gle.com, willmcvicker@...gle.com, 
	linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, 
	linux-clk@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org, 
	linux-serial@...r.kernel.org, kernel-team@...roid.com
Subject: Re: [PATCH v2 05/12] tty: serial: samsung: set UPIO_MEM32 iotype for gs101

Hi Tudor,

On Thu, 28 Dec 2023 at 12:58, Tudor Ambarus <tudor.ambarus@...aro.org> wrote:
>
> GS101's Connectivity Peripheral blocks (peric0/1 blocks) which
> include the I3C and USI (I2C, SPI, UART) only allow 32-bit
> register accesses.
>
> Instead of specifying the reg-io-width = 4 everywhere, for each node,
> the requirement should be deduced from the compatible.
>
> Infer UPIO_MEM32 iotype from the "google,gs101-uart" compatible.
> Update the uart info name to be GS101 specific in order to
> differentiate from the other exynos platforms. All the other settings
> are not changed.
>
> exynos_fifoszdt_serial_drv_data was replaced by gs101_serial_drv_data
> because the iotype restriction is gs101 specific and there was no other
> user of exynos_fifoszdt_serial_drv_data.
>
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>

Reviewed-by: Peter Griffin <peter.griffin@...aro.org>