be36e000bc
When CONFIG_ARCH_AT91 is enabled, but none of the specific SoC support
is in use, some at91 specific drivers fail to link:
drivers/tty/serial/atmel_serial.o: In function `atmel_serial_suspend':
atmel_serial.c:(.text.atmel_serial_suspend+0x1e): undefined reference to `at91_suspend_entering_slow_clock'
drivers/usb/host/ohci-at91.o: In function `ohci_hcd_at91_drv_suspend':
ohci-at91.c:(.text.ohci_hcd_at91_drv_suspend+0x12): undefined reference to `at91_suspend_entering_slow_clock'
drivers/usb/gadget/udc/at91_udc.o: In function `at91udc_suspend':
at91_udc.c:(.text.at91udc_suspend+0x26): undefined reference to `at91_suspend_entering_slow_clock'
This changes the at91_suspend_entering_slow_clock hack once more, adding
an alternative inline implementation that is used exactly in those cases
that don't provide the normal implementation.
Fixes: c1892c2379d2 ("ARM: at91: handle CONFIG_PM for armv7m configurations")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
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* atmel platform data
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*
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* GPL v2 Only
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*/
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#ifndef __ATMEL_H__
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#define __ATMEL_H__
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#include <linux/mtd/nand.h>
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#include <linux/mtd/partitions.h>
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#include <linux/serial.h>
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/* Compact Flash */
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struct at91_cf_data {
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int irq_pin; /* I/O IRQ */
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int det_pin; /* Card detect */
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int vcc_pin; /* power switching */
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int rst_pin; /* card reset */
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u8 chipselect; /* EBI Chip Select number */
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u8 flags;
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#define AT91_CF_TRUE_IDE 0x01
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#define AT91_IDE_SWAP_A0_A2 0x02
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};
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/* NAND / SmartMedia */
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struct atmel_nand_data {
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int enable_pin; /* chip enable */
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int det_pin; /* card detect */
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int rdy_pin; /* ready/busy */
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u8 rdy_pin_active_low; /* rdy_pin value is inverted */
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u8 ale; /* address line number connected to ALE */
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u8 cle; /* address line number connected to CLE */
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u8 bus_width_16; /* buswidth is 16 bit */
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u8 ecc_mode; /* ecc mode */
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u8 on_flash_bbt; /* bbt on flash */
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struct mtd_partition *parts;
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unsigned int num_parts;
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bool has_dma; /* support dma transfer */
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/* default is false, only for at32ap7000 chip is true */
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bool need_reset_workaround;
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};
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/* Serial */
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struct atmel_uart_data {
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int num; /* port num */
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short use_dma_tx; /* use transmit DMA? */
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short use_dma_rx; /* use receive DMA? */
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void __iomem *regs; /* virt. base address, if any */
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struct serial_rs485 rs485; /* rs485 settings */
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};
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/* FIXME: this needs a better location, but gets stuff building again */
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#ifdef CONFIG_ATMEL_PM
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extern int at91_suspend_entering_slow_clock(void);
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#else
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static inline int at91_suspend_entering_slow_clock(void)
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{
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return 0;
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}
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#endif
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#endif /* __ATMEL_H__ */
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