diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2019-09-02 22:33:24 +0200 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2020-08-20 17:48:12 +0200 |
| commit | 81994e0ffc373e67ace4c98797c35f8213f07753 (patch) | |
| tree | a334fff5750b53b644ab9f96a8cdea8b0c4a4c14 /drivers/video/fbdev/s3c2410fb.c | |
| parent | 704b18250f59094f444d2728acccf52c185ac290 (diff) | |
| download | linux-81994e0ffc373e67ace4c98797c35f8213f07753.tar.bz2 | |
fbdev: s3c2410fb: remove mach header dependency
The s3c2410fb driver is too deeply intertwined with the s3c24xx
platform code. Change it in a way that avoids the use of platform
header files but having all interface data in a platform_data
header, and the private register definitions next to the driver
itself.
One ugly bit here is that the driver pokes directly into gpio
registers, which are owned by another driver. Passing the
mapped addresses in platform_data is somewhat suboptimal, but
it is a small improvement over the previous version.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-33-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'drivers/video/fbdev/s3c2410fb.c')
| -rw-r--r-- | drivers/video/fbdev/s3c2410fb.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/video/fbdev/s3c2410fb.c b/drivers/video/fbdev/s3c2410fb.c index 6f8fa501583f..d8ae5258de46 100644 --- a/drivers/video/fbdev/s3c2410fb.c +++ b/drivers/video/fbdev/s3c2410fb.c @@ -29,19 +29,18 @@ #include <linux/clk.h> #include <linux/cpufreq.h> #include <linux/io.h> +#include <linux/platform_data/fb-s3c2410.h> #include <asm/div64.h> #include <asm/mach/map.h> -#include <mach/regs-lcd.h> -#include <mach/regs-gpio.h> -#include <mach/fb.h> #ifdef CONFIG_PM #include <linux/pm.h> #endif #include "s3c2410fb.h" +#include "s3c2410fb-regs-lcd.h" /* Debugging stuff */ static int debug = IS_BUILTIN(CONFIG_FB_S3C2410_DEBUG); @@ -672,6 +671,9 @@ static inline void modify_gpio(void __iomem *reg, { unsigned long tmp; + if (!reg) + return; + tmp = readl(reg) & ~mask; writel(tmp | set, reg); } @@ -702,10 +704,10 @@ static int s3c2410fb_init_registers(struct fb_info *info) /* modify the gpio(s) with interrupts set (bjd) */ - modify_gpio(S3C2410_GPCUP, mach_info->gpcup, mach_info->gpcup_mask); - modify_gpio(S3C2410_GPCCON, mach_info->gpccon, mach_info->gpccon_mask); - modify_gpio(S3C2410_GPDUP, mach_info->gpdup, mach_info->gpdup_mask); - modify_gpio(S3C2410_GPDCON, mach_info->gpdcon, mach_info->gpdcon_mask); + modify_gpio(mach_info->gpcup_reg, mach_info->gpcup, mach_info->gpcup_mask); + modify_gpio(mach_info->gpccon_reg, mach_info->gpccon, mach_info->gpccon_mask); + modify_gpio(mach_info->gpdup_reg, mach_info->gpdup, mach_info->gpdup_mask); + modify_gpio(mach_info->gpdcon_reg, mach_info->gpdcon, mach_info->gpdcon_mask); local_irq_restore(flags); |