Unverified Commit 342e3ce0 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Mark Brown
Browse files

ARM: pxa/lubbock: Replace custom ->cs_control() by GPIO lookup table 



SPI PXA2xx driver supports GPIO chipselect by querying for known
GPIO connection ID. Replace custom ->cs_control() by GPIO table,
so the driver will use generic approach on this platform.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211123192723.44537-1-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f89d2cc3

arch/arm/mach-pxa/lubbock.c

+9 −6
Original line number Diff line number Diff line
@@ -211,16 +211,17 @@ static struct ads7846_platform_data ads_info = { 
	// .y_plate_ohms		= 500,	/* GUESS! */

};



static void ads7846_cs(u32 command)

{

	static const unsigned	TS_nCS = 1 << 11;

	lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);

}

static struct gpiod_lookup_table ads7846_cs_gpios = {

	.dev_id		= "ads7846",

	.table		= {

		GPIO_LOOKUP("lubbock", 11, "cs", GPIO_ACTIVE_LOW),

		{}

	},

};



static struct pxa2xx_spi_chip ads_hw = {

	.tx_threshold		= 1,

	.rx_threshold		= 2,

	.cs_control		= ads7846_cs,

};



static struct spi_board_info spi_board_info[] __initdata = { {
@@ -512,6 +513,8 @@ static void __init lubbock_init(void) 
	lubbock_flash_data[flashboot].name = "boot-rom";

	(void) platform_add_devices(devices, ARRAY_SIZE(devices));



	gpiod_add_lookup_table(&ads7846_cs_gpios);



	pxa2xx_set_spi_info(1, &pxa_ssp_master_info);

	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));

}