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| author | Hans de Goede <hdegoede@redhat.com> | 2015-05-14 18:52:54 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-05-19 18:46:44 +0200 |
| commit | 83edb2ace6f00dfbe2da1ec28964874a06997862 (patch) | |
| tree | 2be464e13b277f68a05fffd1aa7898038e20fea2 /drivers/video | |
| parent | 8975cdf4bce6e562ebb5451a2d1a9beca096660b (diff) | |
| download | u-boot-imx-83edb2ace6f00dfbe2da1ec28964874a06997862.zip u-boot-imx-83edb2ace6f00dfbe2da1ec28964874a06997862.tar.gz u-boot-imx-83edb2ace6f00dfbe2da1ec28964874a06997862.tar.bz2 | |
sunxi: video: Fix lvds panel support for sun6i+
We've never tested the lvds panel support on sun6i+ SoCs until now, and
unsurprisingly the lvds code needed some fixes to work on my ga10h A33
tablet with lvds panel. This makes the panel on that tablet actually work.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/sunxi_display.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c index 48dbdf5..269083b 100644 --- a/drivers/video/sunxi_display.c +++ b/drivers/video/sunxi_display.c @@ -558,8 +558,12 @@ static void sunxi_lcdc_init(void) /* Clock on */ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_LCD0); #ifdef CONFIG_VIDEO_LCD_IF_LVDS +#ifdef CONFIG_SUNXI_GEN_SUN6I + setbits_le32(&ccm->ahb_reset2_cfg, 1 << AHB_RESET_OFFSET_LVDS); +#else setbits_le32(&ccm->lvds_clk_cfg, CCM_LVDS_CTRL_RST); #endif +#endif /* Init lcdc */ writel(0, &lcdc->ctrl); /* Disable tcon */ @@ -582,6 +586,16 @@ static void sunxi_lcdc_enable(void) #ifdef CONFIG_VIDEO_LCD_IF_LVDS setbits_le32(&lcdc->tcon0_lvds_intf, SUNXI_LCDC_TCON0_LVDS_INTF_ENABLE); setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0); +#ifdef CONFIG_SUNXI_GEN_SUN6I + udelay(2); /* delay at least 1200 ns */ + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_EN_MB); + udelay(2); /* delay at least 1200 ns */ + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVC); + if (sunxi_display.depth == 18) + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVD(0x7)); + else + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVD(0xf)); +#else setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_UPDATE); udelay(2); /* delay at least 1200 ns */ setbits_le32(&lcdc->lvds_ana1, SUNXI_LCDC_LVDS_ANA1_INIT1); @@ -589,6 +603,7 @@ static void sunxi_lcdc_enable(void) setbits_le32(&lcdc->lvds_ana1, SUNXI_LCDC_LVDS_ANA1_INIT2); setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_UPDATE); #endif +#endif } static void sunxi_lcdc_panel_enable(void) @@ -706,7 +721,8 @@ static void sunxi_lcdc_tcon0_mode_set(const struct ctfb_res_modes *mode, #endif #ifdef CONFIG_VIDEO_LCD_IF_LVDS val = (sunxi_display.depth == 18) ? 1 : 0; - writel(SUNXI_LCDC_TCON0_LVDS_INTF_BITWIDTH(val), &lcdc->tcon0_lvds_intf); + writel(SUNXI_LCDC_TCON0_LVDS_INTF_BITWIDTH(val) | + SUNXI_LCDC_TCON0_LVDS_CLK_SEL_TCON0, &lcdc->tcon0_lvds_intf); #endif if (sunxi_display.depth == 18 || sunxi_display.depth == 16) { |