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Message-ID: <e59b45f6-b8a5-ed99-f294-072df1a1d222@samsung.com>
Date: Fri, 24 May 2019 13:58:38 +0200
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To: linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/2] video: fbdev: pvr2fb: add COMPILE_TEST support
Add COMPILE_TEST support to pvr2fb driver for better compile
testing coverage.
While at it:
- mark pvr2fb_interrupt() and pvr2fb_common_init() with
__maybe_unused tag (to silence build warnings when
!SH_DREAMCAST)
- convert mmio_base in struct pvr2fb_par to 'void __iomem *'
from 'unsigned long' (needed to silence build warnings on
ARM).
- split pvr2_get_param() on pvr2_get_param_name() and
pvr2_get_param_val() (needed to silence build warnings on
x86).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---
v3: fix 'space prohibited before that close parenthesis ')'
checkpatch errors
v2: fix build warnings on x86 reported by kbuild test robot
patch #1/2 is unchanged so I'm not sending it again
drivers/video/fbdev/Kconfig | 3 +-
drivers/video/fbdev/pvr2fb.c | 61 +++++++++++++++++++++++--------------------
2 files changed, 36 insertions(+), 28 deletions(-)
Index: b/drivers/video/fbdev/Kconfig
===================================================================
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -807,7 +807,8 @@ config FB_XVR1000
config FB_PVR2
tristate "NEC PowerVR 2 display support"
- depends on FB && SH_DREAMCAST
+ depends on FB && HAS_IOMEM
+ depends on SH_DREAMCAST || COMPILE_TEST
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
Index: b/drivers/video/fbdev/pvr2fb.c
===================================================================
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -139,7 +139,7 @@ static struct pvr2fb_par {
unsigned char is_doublescan; /* Are scanlines output twice? (doublescan) */
unsigned char is_lowres; /* Is horizontal pixel-doubling enabled? */
- unsigned long mmio_base; /* MMIO base */
+ void __iomem *mmio_base; /* MMIO base */
u32 palette[16];
} *currentpar;
@@ -325,9 +325,9 @@ static int pvr2fb_setcolreg(unsigned int
* anything if the cable type has been overidden (via "cable:XX").
*/
-#define PCTRA 0xff80002c
-#define PDTRA 0xff800030
-#define VOUTC 0xa0702c00
+#define PCTRA ((void __iomem *)0xff80002c)
+#define PDTRA ((void __iomem *)0xff800030)
+#define VOUTC ((void __iomem *)0xa0702c00)
static int pvr2_init_cable(void)
{
@@ -619,7 +619,7 @@ static void pvr2_do_blank(void)
is_blanked = do_blank > 0 ? do_blank : 0;
}
-static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id)
+static irqreturn_t __maybe_unused pvr2fb_interrupt(int irq, void *dev_id)
{
struct fb_info *info = dev_id;
@@ -722,23 +722,30 @@ static struct fb_ops pvr2fb_ops = {
.fb_imageblit = cfb_imageblit,
};
-static int pvr2_get_param(const struct pvr2_params *p, const char *s, int val,
- int size)
+static int pvr2_get_param_val(const struct pvr2_params *p, const char *s,
+ int size)
{
int i;
- for (i = 0 ; i < size ; i++ ) {
- if (s != NULL) {
- if (!strncasecmp(p[i].name, s, strlen(s)))
- return p[i].val;
- } else {
- if (p[i].val == val)
- return (int)p[i].name;
- }
+ for (i = 0 ; i < size; i++) {
+ if (!strncasecmp(p[i].name, s, strlen(s)))
+ return p[i].val;
}
return -1;
}
+static char *pvr2_get_param_name(const struct pvr2_params *p, int val,
+ int size)
+{
+ int i;
+
+ for (i = 0 ; i < size; i++) {
+ if (p[i].val == val)
+ return p[i].name;
+ }
+ return NULL;
+}
+
/**
* pvr2fb_common_init
*
@@ -757,7 +764,7 @@ static int pvr2_get_param(const struct p
* in for flexibility anyways. Who knows, maybe someone has tv-out on a
* PCI-based version of these things ;-)
*/
-static int pvr2fb_common_init(void)
+static int __maybe_unused pvr2fb_common_init(void)
{
struct pvr2fb_par *par = currentpar;
unsigned long modememused, rev;
@@ -770,8 +777,8 @@ static int pvr2fb_common_init(void)
goto out_err;
}
- par->mmio_base = (unsigned long)ioremap_nocache(pvr2_fix.mmio_start,
- pvr2_fix.mmio_len);
+ par->mmio_base = ioremap_nocache(pvr2_fix.mmio_start,
+ pvr2_fix.mmio_len);
if (!par->mmio_base) {
printk(KERN_ERR "pvr2fb: Failed to remap mmio space\n");
goto out_err;
@@ -819,8 +826,8 @@ static int pvr2fb_common_init(void)
fb_info->var.xres, fb_info->var.yres,
fb_info->var.bits_per_pixel,
get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel),
- (char *)pvr2_get_param(cables, NULL, cable_type, 3),
- (char *)pvr2_get_param(outputs, NULL, video_output, 3));
+ pvr2_get_param_name(cables, cable_type, 3),
+ pvr2_get_param_name(outputs, video_output, 3));
#ifdef CONFIG_SH_STORE_QUEUES
fb_notice(fb_info, "registering with SQ API\n");
@@ -838,7 +845,7 @@ out_err:
if (fb_info->screen_base)
iounmap(fb_info->screen_base);
if (par->mmio_base)
- iounmap((void *)par->mmio_base);
+ iounmap(par->mmio_base);
return -ENXIO;
}
@@ -905,8 +912,8 @@ static void __exit pvr2fb_dc_exit(void)
fb_info->screen_base = NULL;
}
if (currentpar->mmio_base) {
- iounmap((void *)currentpar->mmio_base);
- currentpar->mmio_base = 0;
+ iounmap(currentpar->mmio_base);
+ currentpar->mmio_base = NULL;
}
free_irq(HW_EVENT_VSYNC, fb_info);
@@ -955,8 +962,8 @@ static void pvr2fb_pci_remove(struct pci
fb_info->screen_base = NULL;
}
if (currentpar->mmio_base) {
- iounmap((void *)currentpar->mmio_base);
- currentpar->mmio_base = 0;
+ iounmap(currentpar->mmio_base);
+ currentpar->mmio_base = NULL;
}
pci_release_regions(pdev);
@@ -1027,9 +1034,9 @@ static int __init pvr2fb_setup(char *opt
}
if (*cable_arg)
- cable_type = pvr2_get_param(cables, cable_arg, 0, 3);
+ cable_type = pvr2_get_param_val(cables, cable_arg, 3);
if (*output_arg)
- video_output = pvr2_get_param(outputs, output_arg, 0, 3);
+ video_output = pvr2_get_param_val(outputs, output_arg, 3);
return 0;
}
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