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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-24 19:33:08 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-24 19:33:08 +0200
commite731f3146ff3bba5424b40140e1a7e6f92e94964 (patch)
treec926040385de8b020763f0d2338e0ccbf42bac45 /drivers/spi/spi-s3c24xx.c
parentMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc... (diff)
parentMerge tag 'imx-soc-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sha... (diff)
downloadlinux-e731f3146ff3bba5424b40140e1a7e6f92e94964.tar.xz
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC platform updates from Olof Johansson: "SoC changes, a substantial part of this is cleanup of some of the older platforms that used to have a bunch of board files. In particular: - Remove non-DT i.MX platforms that haven't seen activity in years, it's time to remove them. - A bunch of cleanup and removal of platform data for TI/OMAP platforms, moving over to genpd for power/reset control (yay!) - Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them closer to multiplatform support (not quite there yet, but getting close). There are a few other changes too, smaller fixlets, etc. For new platform support, the primary ones are: - New SoC: Hisilicon SD5203, ARM926EJ-S platform. - Cpufreq support for i.MX7ULP" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits) ARM: mstar: Select MStar intc ARM: stm32: Replace HTTP links with HTTPS ones ARM: debug: add UART early console support for SD5203 ARM: hisi: add support for SD5203 SoC ARM: omap3: enable off mode automatically clk: imx: imx35: Remove mx35_clocks_init() clk: imx: imx31: Remove mx31_clocks_init() clk: imx: imx27: Remove mx27_clocks_init() ARM: imx: Remove unused definitions ARM: imx35: Retrieve the IIM base address from devicetree ARM: imx3: Retrieve the AVIC base address from devicetree ARM: imx3: Retrieve the CCM base address from devicetree ARM: imx31: Retrieve the IIM base address from devicetree ARM: imx27: Retrieve the CCM base address from devicetree ARM: imx27: Retrieve the SYSCTRL base address from devicetree ARM: s3c64xx: bring back notes from removed debug-macro.S ARM: s3c24xx: fix Wunused-variable warning on !MMU ARM: samsung: fix PM debug build with DEBUG_LL but !MMU MAINTAINERS: mark linux-samsung-soc list non-moderated ARM: imx: Remove remnant board file support pieces ...
Diffstat (limited to 'drivers/spi/spi-s3c24xx.c')
-rw-r--r--drivers/spi/spi-s3c24xx.c28
1 files changed, 4 insertions, 24 deletions
diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c
index 7742170fca91..d6f51695ca5b 100644
--- a/drivers/spi/spi-s3c24xx.c
+++ b/drivers/spi/spi-s3c24xx.c
@@ -19,13 +19,12 @@
#include <linux/spi/spi.h>
#include <linux/spi/spi_bitbang.h>
#include <linux/spi/s3c24xx.h>
+#include <linux/spi/s3c24xx-fiq.h>
#include <linux/module.h>
-#include <plat/regs-spi.h>
-
#include <asm/fiq.h>
-#include "spi-s3c24xx-fiq.h"
+#include "spi-s3c24xx-regs.h"
/**
* struct s3c24xx_spi_devstate - per device data
@@ -230,21 +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
- *
- * Returns the bit to write to the interrupt acknowledge register.
- */
-static inline u32 ack_bit(unsigned int irq)
-{
- return 1 << (irq - IRQ_EINT0);
-}
-
/**
* s3c24xx_spi_tryfiq - attempt to claim and setup FIQ for transfer
* @hw: The hardware state.
@@ -261,6 +245,7 @@ static void s3c24xx_spi_tryfiq(struct s3c24xx_spi *hw)
struct pt_regs regs;
enum spi_fiq_mode mode;
struct spi_fiq_code *code;
+ u32 *ack_ptr = NULL;
int ret;
if (!hw->fiq_claimed) {
@@ -283,13 +268,10 @@ 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(&regs);
if (hw->fiq_mode != mode) {
- u32 *ack_ptr;
-
hw->fiq_mode = mode;
switch (mode) {
@@ -309,12 +291,10 @@ static void s3c24xx_spi_tryfiq(struct s3c24xx_spi *hw)
BUG_ON(!code);
ack_ptr = (u32 *)&code->data[code->ack_offset];
- *ack_ptr = ack_bit(hw->irq);
-
set_fiq_handler(&code->data, code->length);
}
- s3c24xx_set_fiq(hw->irq, true);
+ s3c24xx_set_fiq(hw->irq, ack_ptr, true);
hw->fiq_mode = mode;
hw->fiq_inuse = 1;