[PATCH 08/10] ARM: versatile: switch Versatile to use consolidated CLCD
Russell King - ARM Linux
linux at arm.linux.org.uk
Thu Jan 27 08:00:32 EST 2011
This switches Versatile platforms to use the consolidated CLCD panel
support, including the display capabilities. Versatile can support
RGB5551, BGR5551, RGB565 and BGR565 modes.
Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
arch/arm/Kconfig | 1 +
arch/arm/mach-versatile/core.c | 186 ++++++++--------------------------------
2 files changed, 36 insertions(+), 151 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3087985..b0d55b9 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -256,6 +256,7 @@ config ARCH_VERSATILE
select GENERIC_CLOCKEVENTS
select ARCH_WANT_OPTIONAL_GPIOLIB
select PLAT_VERSATILE
+ select PLAT_VERSATILE_CLCD
select ARM_TIMER_SP804
help
This enables support for ARM Ltd Versatile board.
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 2866c11..b4f1f17 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -50,6 +50,7 @@
#include <mach/platform.h>
#include <asm/hardware/timer-sp.h>
+#include <plat/clcd.h>
#include <plat/sched_clock.h>
#include "core.h"
@@ -476,127 +477,7 @@ static struct clk_lookup lookups[] = {
#define SYS_CLCD_ID_SANYO_2_5 (0x07 << 8)
#define SYS_CLCD_ID_VGA (0x1f << 8)
-static struct clcd_panel vga = {
- .mode = {
- .name = "VGA",
- .refresh = 60,
- .xres = 640,
- .yres = 480,
- .pixclock = 39721,
- .left_margin = 40,
- .right_margin = 24,
- .upper_margin = 32,
- .lower_margin = 11,
- .hsync_len = 96,
- .vsync_len = 2,
- .sync = 0,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_BCD | TIM2_IPC,
- .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-static struct clcd_panel sanyo_3_8_in = {
- .mode = {
- .name = "Sanyo QVGA",
- .refresh = 116,
- .xres = 320,
- .yres = 240,
- .pixclock = 100000,
- .left_margin = 6,
- .right_margin = 6,
- .upper_margin = 5,
- .lower_margin = 5,
- .hsync_len = 6,
- .vsync_len = 6,
- .sync = 0,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_BCD,
- .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-static struct clcd_panel sanyo_2_5_in = {
- .mode = {
- .name = "Sanyo QVGA Portrait",
- .refresh = 116,
- .xres = 240,
- .yres = 320,
- .pixclock = 100000,
- .left_margin = 20,
- .right_margin = 10,
- .upper_margin = 2,
- .lower_margin = 2,
- .hsync_len = 10,
- .vsync_len = 2,
- .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_IVS | TIM2_IHS | TIM2_IPC,
- .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-static struct clcd_panel epson_2_2_in = {
- .mode = {
- .name = "Epson QCIF",
- .refresh = 390,
- .xres = 176,
- .yres = 220,
- .pixclock = 62500,
- .left_margin = 3,
- .right_margin = 2,
- .upper_margin = 1,
- .lower_margin = 0,
- .hsync_len = 3,
- .vsync_len = 2,
- .sync = 0,
- .vmode = FB_VMODE_NONINTERLACED,
- },
- .width = -1,
- .height = -1,
- .tim2 = TIM2_BCD | TIM2_IPC,
- .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1),
- .bpp = 16,
-};
-
-/*
- * Detect which LCD panel is connected, and return the appropriate
- * clcd_panel structure. Note: we do not have any information on
- * the required timings for the 8.4in panel, so we presently assume
- * VGA timings.
- */
-static struct clcd_panel *versatile_clcd_panel(void)
-{
- void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET;
- struct clcd_panel *panel = &vga;
- u32 val;
-
- val = readl(sys_clcd) & SYS_CLCD_ID_MASK;
- if (val == SYS_CLCD_ID_SANYO_3_8)
- panel = &sanyo_3_8_in;
- else if (val == SYS_CLCD_ID_SANYO_2_5)
- panel = &sanyo_2_5_in;
- else if (val == SYS_CLCD_ID_EPSON_2_2)
- panel = &epson_2_2_in;
- else if (val == SYS_CLCD_ID_VGA)
- panel = &vga;
- else {
- printk(KERN_ERR "CLCD: unknown LCD panel ID 0x%08x, using VGA\n",
- val);
- panel = &vga;
- }
-
- return panel;
-}
+static bool is_sanyo_2_5_lcd;
/*
* Disable all display connectors on the interface module.
@@ -614,7 +495,7 @@ static void versatile_clcd_disable(struct clcd_fb *fb)
/*
* If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light off
*/
- if (machine_is_versatile_ab() && fb->panel == &sanyo_2_5_in) {
+ if (machine_is_versatile_ab() && is_sanyo_2_5_lcd) {
void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL);
unsigned long ctrl;
@@ -667,7 +548,7 @@ static void versatile_clcd_enable(struct clcd_fb *fb)
/*
* If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light on
*/
- if (machine_is_versatile_ab() && fb->panel == &sanyo_2_5_in) {
+ if (machine_is_versatile_ab() && is_sanyo_2_5_lcd) {
void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL);
unsigned long ctrl;
@@ -678,39 +559,41 @@ static void versatile_clcd_enable(struct clcd_fb *fb)
#endif
}
-static unsigned long framesize = SZ_1M;
-
+/*
+ * Detect which LCD panel is connected, and return the appropriate
+ * clcd_panel structure. Note: we do not have any information on
+ * the required timings for the 8.4in panel, so we presently assume
+ * VGA timings.
+ */
static int versatile_clcd_setup(struct clcd_fb *fb)
{
- dma_addr_t dma;
+ void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET;
+ const char *panel_name;
+ u32 val;
- fb->panel = versatile_clcd_panel();
+ is_sanyo_2_5_lcd = false;
- fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
- &dma, GFP_KERNEL);
- if (!fb->fb.screen_base) {
- printk(KERN_ERR "CLCD: unable to map framebuffer\n");
- return -ENOMEM;
+ val = readl(sys_clcd) & SYS_CLCD_ID_MASK;
+ if (val == SYS_CLCD_ID_SANYO_3_8)
+ panel_name = "Sanyo TM38QV67A02A";
+ else if (val == SYS_CLCD_ID_SANYO_2_5) {
+ panel_name = "Sanyo QVGA Portrait";
+ is_sanyo_2_5_lcd = true;
+ } else if (val == SYS_CLCD_ID_EPSON_2_2)
+ panel_name = "Epson L2F50113T00";
+ else if (val == SYS_CLCD_ID_VGA)
+ panel_name = "VGA";
+ else {
+ printk(KERN_ERR "CLCD: unknown LCD panel ID 0x%08x, using VGA\n",
+ val);
+ panel_name = "VGA";
}
- fb->fb.fix.smem_start = dma;
- fb->fb.fix.smem_len = framesize;
+ fb->panel = versatile_clcd_get_panel(panel_name);
+ if (!fb->panel)
+ return -EINVAL;
- return 0;
-}
-
-static int versatile_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
-{
- return dma_mmap_writecombine(&fb->dev->dev, vma,
- fb->fb.screen_base,
- fb->fb.fix.smem_start,
- fb->fb.fix.smem_len);
-}
-
-static void versatile_clcd_remove(struct clcd_fb *fb)
-{
- dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
- fb->fb.screen_base, fb->fb.fix.smem_start);
+ return versatile_clcd_setup_dma(fb, SZ_1M);
}
static void versatile_clcd_decode(struct clcd_fb *fb, struct clcd_regs *regs)
@@ -724,13 +607,14 @@ static void versatile_clcd_decode(struct clcd_fb *fb, struct clcd_regs *regs)
static struct clcd_board clcd_plat_data = {
.name = "Versatile",
+ .caps = CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888,
.check = clcdfb_check,
.decode = versatile_clcd_decode,
.disable = versatile_clcd_disable,
.enable = versatile_clcd_enable,
.setup = versatile_clcd_setup,
- .mmap = versatile_clcd_mmap,
- .remove = versatile_clcd_remove,
+ .mmap = versatile_clcd_mmap_dma,
+ .remove = versatile_clcd_remove_dma,
};
static struct pl061_platform_data gpio0_plat_data = {
--
1.6.2.5
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