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serial: lpc32xx: allow compile testing

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The lpc32xx_loopback_set() function in hte lpc32xx_hs driver is the
one thing that relies on platform header files. Move that into the
core platform code so we only need a variable declaration for it,
and enable COMPILE_TEST building.

Link: https://lore.kernel.org/r/20190809144043.476786-12-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2019-08-09 16:40:37 +02:00
parent 35974a7cc2
commit ffba29c9eb
3 changed files with 38 additions and 31 deletions
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4
include/linux/soc/nxp/lpc32xx-misc.h
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@@ -14,6 +14,7 @@
#ifdef CONFIG_ARCH_LPC32XX
extern u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaaddr);
extern void lpc32xx_set_phy_interface_mode(phy_interface_t mode);
extern void lpc32xx_loopback_set(resource_size_t mapbase, int state);
#else
static inline u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaaddr)
{
@@ -24,6 +25,9 @@ static inline u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaadd
static inline void lpc32xx_set_phy_interface_mode(phy_interface_t mode)
{
}
static inline void lpc32xx_loopback_set(resource_size_t mapbase, int state)
{
}
#endif
#endif /* __SOC_LPC32XX_MISC_H */