From: Arnd Bergmann Date: Tue, 3 Sep 2019 09:31:09 +0000 (+0200) Subject: ARM: s3c24xx: move spi fiq handler into platform X-Git-Tag: v5.10.7~1322^2~14^2~16 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f131a4443ea468cd532410c271c229bb39caab08;p=platform%2Fkernel%2Flinux-rpi.git ARM: s3c24xx: move spi fiq handler into platform The fiq handler needs access to some register definitions that should not be used directly by device drivers. Since this is closely related to the irqchip driver anyway, move it into the same place. Signed-off-by: Arnd Bergmann [krzk: Add a header guard in include/linux/spi/s3c24xx-fiq.h, fix SPDX comment style, update maintainer's entry] Co-developed-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20200806182059.2431-23-krzk%40kernel.org Acked-by: Mark Brown --- diff --git a/MAINTAINERS b/MAINTAINERS index 45906c58..a1414469 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15317,6 +15317,7 @@ S: Maintained F: Documentation/devicetree/bindings/spi/spi-samsung.txt F: drivers/spi/spi-s3c* F: include/linux/platform_data/spi-s3c64xx.h +F: include/linux/spi/s3c24xx-fiq.h SAMSUNG SXGBE DRIVERS M: Byungho An diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile index 3ad297b..b69eee2 100644 --- a/arch/arm/mach-s3c24xx/Makefile +++ b/arch/arm/mach-s3c24xx/Makefile @@ -9,6 +9,8 @@ obj-y += common.o obj-y += irq-s3c24xx.o +obj-$(CONFIG_SPI_S3C24XX_FIQ) += irq-s3c24xx-fiq.o +obj-$(CONFIG_SPI_S3C24XX_FIQ) += irq-s3c24xx-fiq-exports.o obj-$(CONFIG_CPU_S3C2410) += s3c2410.o obj-$(CONFIG_S3C2410_PLL) += pll-s3c2410.o diff --git a/arch/arm/mach-s3c24xx/irq-s3c24xx-fiq-exports.c b/arch/arm/mach-s3c24xx/irq-s3c24xx-fiq-exports.c new file mode 100644 index 0000000..84cf863 --- /dev/null +++ b/arch/arm/mach-s3c24xx/irq-s3c24xx-fiq-exports.c @@ -0,0 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include +#include +#include + +EXPORT_SYMBOL(s3c24xx_spi_fiq_rx); +EXPORT_SYMBOL(s3c24xx_spi_fiq_txrx); +EXPORT_SYMBOL(s3c24xx_spi_fiq_tx); diff --git a/drivers/spi/spi-s3c24xx-fiq.S b/arch/arm/mach-s3c24xx/irq-s3c24xx-fiq.S similarity index 98% rename from drivers/spi/spi-s3c24xx-fiq.S rename to arch/arm/mach-s3c24xx/irq-s3c24xx-fiq.S index 9d5f8f1..2a84535 100644 --- a/drivers/spi/spi-s3c24xx-fiq.S +++ b/arch/arm/mach-s3c24xx/irq-s3c24xx-fiq.S @@ -13,7 +13,7 @@ #include #include -#include "spi-s3c24xx-fiq.h" +#include #define S3C2410_SPTDAT (0x10) #define S3C2410_SPRDAT (0x14) diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index cf955ea..eba6fb6 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -97,7 +97,6 @@ obj-$(CONFIG_SPI_RPCIF) += spi-rpc-if.o obj-$(CONFIG_SPI_RSPI) += spi-rspi.o obj-$(CONFIG_SPI_S3C24XX) += spi-s3c24xx-hw.o spi-s3c24xx-hw-y := spi-s3c24xx.o -spi-s3c24xx-hw-$(CONFIG_SPI_S3C24XX_FIQ) += spi-s3c24xx-fiq.o obj-$(CONFIG_SPI_S3C64XX) += spi-s3c64xx.o obj-$(CONFIG_SPI_SC18IS602) += spi-sc18is602.o obj-$(CONFIG_SPI_SH) += spi-sh.o diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c index 0691248..6ac6f0b 100644 --- a/drivers/spi/spi-s3c24xx.c +++ b/drivers/spi/spi-s3c24xx.c @@ -19,12 +19,12 @@ #include #include #include +#include #include #include #include "spi-s3c24xx-regs.h" -#include "spi-s3c24xx-fiq.h" /** * s3c24xx_spi_devstate - per device data @@ -229,10 +229,6 @@ struct spi_fiq_code { u8 data[]; }; -extern struct spi_fiq_code s3c24xx_spi_fiq_txrx; -extern struct spi_fiq_code s3c24xx_spi_fiq_tx; -extern struct spi_fiq_code s3c24xx_spi_fiq_rx; - /** * ack_bit - turn IRQ into IRQ acknowledgement bit * @irq: The interrupt number @@ -282,7 +278,6 @@ static void s3c24xx_spi_tryfiq(struct s3c24xx_spi *hw) regs.uregs[fiq_rrx] = (long)hw->rx; regs.uregs[fiq_rtx] = (long)hw->tx + 1; regs.uregs[fiq_rcount] = hw->len - 1; - regs.uregs[fiq_rirq] = (long)S3C24XX_VA_IRQ; set_fiq_regs(®s); diff --git a/drivers/spi/spi-s3c24xx-fiq.h b/include/linux/spi/s3c24xx-fiq.h similarity index 66% rename from drivers/spi/spi-s3c24xx-fiq.h rename to include/linux/spi/s3c24xx-fiq.h index 7786b0e..d2842ac 100644 --- a/drivers/spi/spi-s3c24xx-fiq.h +++ b/include/linux/spi/s3c24xx-fiq.h @@ -7,11 +7,19 @@ * S3C24XX SPI - FIQ pseudo-DMA transfer support */ +#ifndef __LINUX_SPI_S3C24XX_FIQ_H +#define __LINUX_SPI_S3C24XX_FIQ_H __FILE__ + /* We have R8 through R13 to play with */ #ifdef __ASSEMBLY__ #define __REG_NR(x) r##x #else + +extern struct spi_fiq_code s3c24xx_spi_fiq_txrx; +extern struct spi_fiq_code s3c24xx_spi_fiq_tx; +extern struct spi_fiq_code s3c24xx_spi_fiq_rx; + #define __REG_NR(x) (x) #endif @@ -21,3 +29,5 @@ #define fiq_rtx __REG_NR(11) #define fiq_rcount __REG_NR(12) #define fiq_rirq __REG_NR(13) + +#endif /* __LINUX_SPI_S3C24XX_FIQ_H */