The patch titled
broadsheetfb: add multiple panel type support
has been added to the -mm tree. Its filename is
broadsheetfb-add-multiple-panel-type-support.patch
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------------------------------------------------------
Subject: broadsheetfb: add multiple panel type support
From: Jaya Kumar <jayakumar.lkml@xxxxxxxxx>
Update broadsheetfb to add support for multiple panel types. The 3.7" and
6" are known to work but the 9.7" is untested due to lack of hardware.
Signed-off-by: Jaya Kumar <jayakumar.lkml@xxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Krzysztof Helt <krzysztof.h1@xxxxx>
Cc: Russell King <rmk@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-pxa/am300epd.c | 2
drivers/video/broadsheetfb.c | 125 ++++++++++++++++++++++++++++-----
include/video/broadsheetfb.h | 1
3 files changed, 111 insertions(+), 17 deletions(-)
diff -puN arch/arm/mach-pxa/am300epd.c~broadsheetfb-add-multiple-panel-type-support arch/arm/mach-pxa/am300epd.c
--- a/arch/arm/mach-pxa/am300epd.c~broadsheetfb-add-multiple-panel-type-support
+++ a/arch/arm/mach-pxa/am300epd.c
@@ -288,7 +288,7 @@ int __init am300_init(void)
}
module_param(panel_type, uint, 0);
-MODULE_PARM_DESC(panel_type, "Select the panel type: 6, 8, 97");
+MODULE_PARM_DESC(panel_type, "Select the panel type: 37, 6, 97");
MODULE_DESCRIPTION("board driver for am300 epd kit");
MODULE_AUTHOR("Jaya Kumar");
diff -puN drivers/video/broadsheetfb.c~broadsheetfb-add-multiple-panel-type-support drivers/video/broadsheetfb.c
--- a/drivers/video/broadsheetfb.c~broadsheetfb-add-multiple-panel-type-support
+++ a/drivers/video/broadsheetfb.c
@@ -33,7 +33,60 @@
#include <video/broadsheetfb.h>
-/* Display specific information */
+/* track panel specific parameters */
+struct panel_info {
+ int w;
+ int h;
+ u16 sdcfg;
+ u16 gdcfg;
+ u16 lutfmt;
+ u16 fsynclen;
+ u16 fendfbegin;
+ u16 lsynclen;
+ u16 lendlbegin;
+ u16 pixclk;
+};
+
+/* table of panel specific parameters to be indexed into by the board drivers */
+static struct panel_info panel_table[] = {
+ { /* standard 6" on TFT backplane */
+ .w = 800,
+ .h = 600,
+ .sdcfg = (100 | (1 << 8) | (1 << 9)),
+ .gdcfg = 2,
+ .lutfmt = (4 | (1 << 7)),
+ .fsynclen = 4,
+ .fendfbegin = (10 << 8) | 4,
+ .lsynclen = 10,
+ .lendlbegin = (100 << 8) | 4,
+ .pixclk = 6,
+ },
+ { /* custom 3.7" flexible on PET or steel */
+ .w = 320,
+ .h = 240,
+ .sdcfg = (67 | (0 << 8) | (0 << 9) | (0 << 10) | (0 << 12)),
+ .gdcfg = 3,
+ .lutfmt = (4 | (1 << 7)),
+ .fsynclen = 0,
+ .fendfbegin = (80 << 8) | 4,
+ .lsynclen = 10,
+ .lendlbegin = (80 << 8) | 20,
+ .pixclk = 14,
+ },
+ { /* standard 9.7" on TFT backplane */
+ .w = 1200,
+ .h = 825,
+ .sdcfg = (100 | (1 << 8) | (1 << 9) | (0 << 10) | (0 << 12)),
+ .gdcfg = 2,
+ .lutfmt = (4 | (1 << 7)),
+ .fsynclen = 0,
+ .fendfbegin = (4 << 8) | 4,
+ .lsynclen = 4,
+ .lendlbegin = (60 << 8) | 10,
+ .pixclk = 3,
+ },
+};
+
#define DPY_W 800
#define DPY_H 600
@@ -160,6 +213,14 @@ static void broadsheet_write_reg(struct
par->board->set_ctl(par, BS_CS, 1);
}
+static void broadsheet_write_reg32(struct broadsheetfb_par *par, u16 reg,
+ u32 data)
+{
+ broadsheet_write_reg(par, reg, cpu_to_le32(data) & 0xFFFF);
+ broadsheet_write_reg(par, reg + 2, (cpu_to_le32(data) >> 16) & 0xFFFF);
+}
+
+
static u16 broadsheet_read_reg(struct broadsheetfb_par *par, u16 reg)
{
broadsheet_send_command(par, reg);
@@ -170,24 +231,28 @@ static u16 broadsheet_read_reg(struct br
static void __devinit broadsheet_init_display(struct broadsheetfb_par *par)
{
u16 args[5];
+ int xres = par->info->var.xres;
+ int yres = par->info->var.yres;
- args[0] = DPY_W;
- args[1] = DPY_H;
- args[2] = (100 | (1 << 8) | (1 << 9)); /* sdcfg */
- args[3] = 2; /* gdrv cfg */
- args[4] = (4 | (1 << 7)); /* lut index format */
+ args[0] = panel_table[par->panel_index].w;
+ args[1] = panel_table[par->panel_index].h;
+ args[2] = panel_table[par->panel_index].sdcfg;
+ args[3] = panel_table[par->panel_index].gdcfg;
+ args[4] = panel_table[par->panel_index].lutfmt;
broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_CFG, 5, args);
/* did the controller really set it? */
broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_CFG, 5, args);
- args[0] = 4; /* fsync len */
- args[1] = (10 << 8) | 4; /* fend/fbegin len */
- args[2] = 10; /* line sync len */
- args[3] = (100 << 8) | 4; /* line end/begin len */
- args[4] = 6; /* pixel clock cfg */
+ args[0] = panel_table[par->panel_index].fsynclen;
+ args[1] = panel_table[par->panel_index].fendfbegin;
+ args[2] = panel_table[par->panel_index].lsynclen;
+ args[3] = panel_table[par->panel_index].lendlbegin;
+ args[4] = panel_table[par->panel_index].pixclk;
broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_TMG, 5, args);
+ broadsheet_write_reg32(par, 0x310, xres*yres*2);
+
/* setup waveform */
args[0] = 0x886;
args[1] = 0;
@@ -207,8 +272,9 @@ static void __devinit broadsheet_init_di
args[0] = 0x154;
broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args);
- broadsheet_burst_write(par, DPY_W*DPY_H/2,
- (u16 *) par->info->screen_base);
+ broadsheet_burst_write(par, (panel_table[par->panel_index].w *
+ panel_table[par->panel_index].h)/2,
+ (u16 *) par->info->screen_base);
broadsheet_send_command(par, BS_CMD_LD_IMG_END);
@@ -277,8 +343,9 @@ static void broadsheetfb_dpy_update(stru
args[0] = 0x154;
broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args);
- broadsheet_burst_write(par, DPY_W*DPY_H/2,
- (u16 *) par->info->screen_base);
+ broadsheet_burst_write(par, (panel_table[par->panel_index].w *
+ panel_table[par->panel_index].h)/2,
+ (u16 *) par->info->screen_base);
broadsheet_send_command(par, BS_CMD_LD_IMG_END);
@@ -436,6 +503,8 @@ static int __devinit broadsheetfb_probe(
unsigned char *videomemory;
struct broadsheetfb_par *par;
int i;
+ int dpyw, dpyh;
+ int panel_index;
/* pick up board specific routines */
board = dev->dev.platform_data;
@@ -450,7 +519,24 @@ static int __devinit broadsheetfb_probe(
if (!info)
goto err;
- videomemorysize = (DPY_W*DPY_H);
+ switch (board->get_panel_type()) {
+ case 37:
+ panel_index = 1;
+ break;
+ case 97:
+ panel_index = 2;
+ break;
+ case 6:
+ default:
+ panel_index = 0;
+ break;
+ }
+
+ dpyw = panel_table[panel_index].w;
+ dpyh = panel_table[panel_index].h;
+
+ videomemorysize = roundup((dpyw*dpyh), PAGE_SIZE);
+
videomemory = vmalloc(videomemorysize);
if (!videomemory)
goto err_fb_rel;
@@ -460,10 +546,17 @@ static int __devinit broadsheetfb_probe(
info->screen_base = (char *)videomemory;
info->fbops = &broadsheetfb_ops;
+ broadsheetfb_var.xres = dpyw;
+ broadsheetfb_var.yres = dpyh;
+ broadsheetfb_var.xres_virtual = dpyw;
+ broadsheetfb_var.yres_virtual = dpyh;
info->var = broadsheetfb_var;
+
+ broadsheetfb_fix.line_length = dpyw;
info->fix = broadsheetfb_fix;
info->fix.smem_len = videomemorysize;
par = info->par;
+ par->panel_index = panel_index;
par->info = info;
par->board = board;
par->write_reg = broadsheet_write_reg;
diff -puN include/video/broadsheetfb.h~broadsheetfb-add-multiple-panel-type-support include/video/broadsheetfb.h
--- a/include/video/broadsheetfb.h~broadsheetfb-add-multiple-panel-type-support
+++ a/include/video/broadsheetfb.h
@@ -41,6 +41,7 @@ struct broadsheetfb_par {
void (*write_reg)(struct broadsheetfb_par *, u16 reg, u16 val);
u16 (*read_reg)(struct broadsheetfb_par *, u16 reg);
wait_queue_head_t waitq;
+ int panel_index;
};
/* board specific routines */
_
Patches currently in -mm which might be from jayakumar.lkml@xxxxxxxxx are
broadsheetfb-add-multiple-panel-type-support.patch
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