Re: [PATCH v10 5/6] spi: at91-usart: add driver for at91-usart as spi

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On 07/10/2018 09:15 PM, Mark Brown wrote:
On Mon, Jun 25, 2018 at 08:22:29PM +0300, Radu Pirea wrote:

This is mostly good, just a couple of small things:

+config SPI_AT91_USART
+	tristate "Atmel USART Controller SPI driver"
+	depends on HAS_DMA
+	depends on (ARCH_AT91 || COMPILE_TEST)
+	select MFD_AT91_USART

Why is this selecting rather than depending on the MFD like we normally
do?


Hi Mark,

If I add depends instead of select, current defconfigs will be broken and the proper driver will not be selected. Like this, there is no required change in any defconfig. Selecting the serial or spi driver from menuconfig makes the MFD completely transparent.
@@ -0,0 +1,432 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for AT91 USART Controllers as SPI
+ *
+ * Copyright (C) 2018 Microchip Technology Inc.
+ * Author: Radu Pirea <radu.pirea@xxxxxxxxxxxxx>
+ */

Please use C++ comments for the whole block so it looks a bit more
intentional.

Ok. I will change it.


Otherwise

Reviwed-by: Mark Brown <broonie@xxxxxxxxxx>

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