[PATCH v2 5/6] fbdev: sh_mobile_lcdc: Store the frame buffer base address when panning
DORMANTno replies
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: 2011-07-20 11:24:28
Also in:
linux-sh
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
When the frame buffer base address is changed by a panning operation, store it in the channel structure. It will be reused when runtime PM code will use __sh_mobile_lcdc_start(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- drivers/video/sh_mobile_lcdcfb.c | 22 +++++++++------------- 1 files changed, 9 insertions(+), 13 deletions(-)
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 785521e..f0a3d54 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c@@ -915,32 +915,28 @@ static int sh_mobile_fb_pan_display(struct fb_var_screeninfo *var, base_addr_c += 2 * var->xoffset; else base_addr_c += var->xoffset; - } else - base_addr_c = 0; + } - if (!ch->meram_enabled) { - lcdc_write_chan_mirror(ch, LDSA1R, base_addr_y); - if (base_addr_c) - lcdc_write_chan_mirror(ch, LDSA2R, base_addr_c); - } else { + if (ch->meram_enabled) { struct sh_mobile_meram_cfg *cfg; struct sh_mobile_meram_info *mdev; - unsigned long icb_addr_y, icb_addr_c; int ret; cfg = ch->cfg.meram_cfg; mdev = priv->meram_dev; ret = mdev->ops->meram_update(mdev, cfg, base_addr_y, base_addr_c, - &icb_addr_y, &icb_addr_c); + &base_addr_y, &base_addr_c); if (ret) return ret; + } - lcdc_write_chan_mirror(ch, LDSA1R, icb_addr_y); - if (icb_addr_c) - lcdc_write_chan_mirror(ch, LDSA2R, icb_addr_c); + ch->base_addr_y = base_addr_y; + ch->base_addr_c = base_addr_c; - } + lcdc_write_chan_mirror(ch, LDSA1R, base_addr_y); + if (var->nonstd) + lcdc_write_chan_mirror(ch, LDSA2R, base_addr_c); if (lcdc_chan_is_sublcd(ch)) lcdc_write(ch->lcdc, _LDRCNTR, ldrcntr ^ LDRCNTR_SRS);
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1.7.3.4