serial: ucc_uart: stub out soft_uart_init for !CONFIG_PPC32 (002dedc5) · Commits · 戴 / test

The Soft UART hack is only needed for some PPC-based SOCs. To allow building this driver for non-PPC, guard soft_uart_init() and its helpers by CONFIG_PPC32, and use a no-op soft_uart_init() otherwise. Reviewed-by:

Timur Tabi <timur@kernel.org> Acked-by:

Timur Tabi <timur@kernel.org> Signed-off-by:

Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by:

Li Yang <leoyang.li@nxp.com>

drivers/tty/serial/ucc_uart.c

+16 −1

Original line number	Diff line number	Diff line
		@@ -33,7 +33,10 @@

		#include <linux/firmware.h>
		#include <soc/fsl/cpm.h>
		#include <asm/reg.h>

		#ifdef CONFIG_PPC32
		#include <asm/reg.h> /* mfspr, SPRN_SVR */
		#endif

		/*
		* The GUMR flag for Soft UART. This would normally be defined in qe.h,
		@@ -1096,6 +1099,8 @@ static const struct uart_ops qe_uart_pops = {
		.verify_port = qe_uart_verify_port,
		};


		#ifdef CONFIG_PPC32
		/*
		* Obtain the SOC model number and revision level
		*
		@@ -1238,6 +1243,16 @@ static int soft_uart_init(struct platform_device *ofdev)
		return 0;
		}

		#else /* !CONFIG_PPC32 */

		static int soft_uart_init(struct platform_device *ofdev)
		{
		return 0;
		}

		#endif


		static int ucc_uart_probe(struct platform_device *ofdev)
		{
		struct device_node *np = ofdev->dev.of_node;

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