spi: atmel: Remove and fix erroneous comments (4d8672d1) · Commits · 戴 / test

drivers/spi/spi-atmel.c

+3 −7

Original line number	Diff line number	Diff line
		@@ -312,11 +312,9 @@ static bool atmel_spi_is_v2(struct atmel_spi *as)
		* transmitted") Not so! Workaround uses nCSx pins as GPIOs; or newer
		* controllers have CSAAT and friends.
		*
		* Since the CSAAT functionality is a bit weird on newer controllers as
		* well, we use GPIO to control nCSx pins on all controllers, updating
		* MR.PCS to avoid confusing the controller. Using GPIOs also lets us
		* support active-high chipselects despite the controller's belief that
		* only active-low devices/systems exists.
		* Even controller newer than ar91rm9200, using GPIOs can make sens as
		* it lets us support active-high chipselects despite the controller's
		* belief that only active-low devices/systems exists.
		*
		* However, at91rm9200 has a second erratum whereby nCS0 doesn't work
		* right when driven with GPIO. ("Mode Fault does not allow more than one
		@@ -1193,8 +1191,6 @@ static int atmel_spi_setup(struct spi_device *spi)
		if (!as->use_cs_gpios)
		csr \|= SPI_BIT(CSAAT);

		/* DLYBS is mostly irrelevant since we manage chipselect using GPIOs.
		*/
		csr \|= SPI_BF(DLYBS, 0);

		word_delay_csr = atmel_word_delay_csr(spi, as);